/* * MIPS32 emulation for qemu: main translation routines. * * Copyright (c) 2004-2005 Jocelyn Mayer * Copyright (c) 2006 Marius Groeger (FPU operations) * Copyright (c) 2006 Thiemo Seufer (MIPS32R2 support) * Copyright (c) 2009 CodeSourcery (MIPS16 and microMIPS support) * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, see . */ #include "cpu.h" #include "disas.h" #include "tcg-op.h" #include "helper.h" #define GEN_HELPER 1 #include "helper.h" //#define MIPS_DEBUG_DISAS //#define MIPS_DEBUG_SIGN_EXTENSIONS /* MIPS major opcodes */ #define MASK_OP_MAJOR(op) (op & (0x3F << 26)) enum { /* indirect opcode tables */ OPC_SPECIAL = (0x00 << 26), OPC_REGIMM = (0x01 << 26), OPC_CP0 = (0x10 << 26), OPC_CP1 = (0x11 << 26), OPC_CP2 = (0x12 << 26), OPC_CP3 = (0x13 << 26), OPC_SPECIAL2 = (0x1C << 26), OPC_SPECIAL3 = (0x1F << 26), /* arithmetic with immediate */ OPC_ADDI = (0x08 << 26), OPC_ADDIU = (0x09 << 26), OPC_SLTI = (0x0A << 26), OPC_SLTIU = (0x0B << 26), /* logic with immediate */ OPC_ANDI = (0x0C << 26), OPC_ORI = (0x0D << 26), OPC_XORI = (0x0E << 26), OPC_LUI = (0x0F << 26), /* arithmetic with immediate */ OPC_DADDI = (0x18 << 26), OPC_DADDIU = (0x19 << 26), /* Jump and branches */ OPC_J = (0x02 << 26), OPC_JAL = (0x03 << 26), OPC_JALS = OPC_JAL | 0x5, OPC_BEQ = (0x04 << 26), /* Unconditional if rs = rt = 0 (B) */ OPC_BEQL = (0x14 << 26), OPC_BNE = (0x05 << 26), OPC_BNEL = (0x15 << 26), OPC_BLEZ = (0x06 << 26), OPC_BLEZL = (0x16 << 26), OPC_BGTZ = (0x07 << 26), OPC_BGTZL = (0x17 << 26), OPC_JALX = (0x1D << 26), /* MIPS 16 only */ OPC_JALXS = OPC_JALX | 0x5, /* Load and stores */ OPC_LDL = (0x1A << 26), OPC_LDR = (0x1B << 26), OPC_LB = (0x20 << 26), OPC_LH = (0x21 << 26), OPC_LWL = (0x22 << 26), OPC_LW = (0x23 << 26), OPC_LWPC = OPC_LW | 0x5, OPC_LBU = (0x24 << 26), OPC_LHU = (0x25 << 26), OPC_LWR = (0x26 << 26), OPC_LWU = (0x27 << 26), OPC_SB = (0x28 << 26), OPC_SH = (0x29 << 26), OPC_SWL = (0x2A << 26), OPC_SW = (0x2B << 26), OPC_SDL = (0x2C << 26), OPC_SDR = (0x2D << 26), OPC_SWR = (0x2E << 26), OPC_LL = (0x30 << 26), OPC_LLD = (0x34 << 26), OPC_LD = (0x37 << 26), OPC_LDPC = OPC_LD | 0x5, OPC_SC = (0x38 << 26), OPC_SCD = (0x3C << 26), OPC_SD = (0x3F << 26), /* Floating point load/store */ OPC_LWC1 = (0x31 << 26), OPC_LWC2 = (0x32 << 26), OPC_LDC1 = (0x35 << 26), OPC_LDC2 = (0x36 << 26), OPC_SWC1 = (0x39 << 26), OPC_SWC2 = (0x3A << 26), OPC_SDC1 = (0x3D << 26), OPC_SDC2 = (0x3E << 26), /* MDMX ASE specific */ OPC_MDMX = (0x1E << 26), /* Cache and prefetch */ OPC_CACHE = (0x2F << 26), OPC_PREF = (0x33 << 26), /* Reserved major opcode */ OPC_MAJOR3B_RESERVED = (0x3B << 26), }; /* MIPS special opcodes */ #define MASK_SPECIAL(op) MASK_OP_MAJOR(op) | (op & 0x3F) enum { /* Shifts */ OPC_SLL = 0x00 | OPC_SPECIAL, /* NOP is SLL r0, r0, 0 */ /* SSNOP is SLL r0, r0, 1 */ /* EHB is SLL r0, r0, 3 */ OPC_SRL = 0x02 | OPC_SPECIAL, /* also ROTR */ OPC_ROTR = OPC_SRL | (1 << 21), OPC_SRA = 0x03 | OPC_SPECIAL, OPC_SLLV = 0x04 | OPC_SPECIAL, OPC_SRLV = 0x06 | OPC_SPECIAL, /* also ROTRV */ OPC_ROTRV = OPC_SRLV | (1 << 6), OPC_SRAV = 0x07 | OPC_SPECIAL, OPC_DSLLV = 0x14 | OPC_SPECIAL, OPC_DSRLV = 0x16 | OPC_SPECIAL, /* also DROTRV */ OPC_DROTRV = OPC_DSRLV | (1 << 6), OPC_DSRAV = 0x17 | OPC_SPECIAL, OPC_DSLL = 0x38 | OPC_SPECIAL, OPC_DSRL = 0x3A | OPC_SPECIAL, /* also DROTR */ OPC_DROTR = OPC_DSRL | (1 << 21), OPC_DSRA = 0x3B | OPC_SPECIAL, OPC_DSLL32 = 0x3C | OPC_SPECIAL, OPC_DSRL32 = 0x3E | OPC_SPECIAL, /* also DROTR32 */ OPC_DROTR32 = OPC_DSRL32 | (1 << 21), OPC_DSRA32 = 0x3F | OPC_SPECIAL, /* Multiplication / division */ OPC_MULT = 0x18 | OPC_SPECIAL, OPC_MULTU = 0x19 | OPC_SPECIAL, OPC_DIV = 0x1A | OPC_SPECIAL, OPC_DIVU = 0x1B | OPC_SPECIAL, OPC_DMULT = 0x1C | OPC_SPECIAL, OPC_DMULTU = 0x1D | OPC_SPECIAL, OPC_DDIV = 0x1E | OPC_SPECIAL, OPC_DDIVU = 0x1F | OPC_SPECIAL, /* 2 registers arithmetic / logic */ OPC_ADD = 0x20 | OPC_SPECIAL, OPC_ADDU = 0x21 | OPC_SPECIAL, OPC_SUB = 0x22 | OPC_SPECIAL, OPC_SUBU = 0x23 | OPC_SPECIAL, OPC_AND = 0x24 | OPC_SPECIAL, OPC_OR = 0x25 | OPC_SPECIAL, OPC_XOR = 0x26 | OPC_SPECIAL, OPC_NOR = 0x27 | OPC_SPECIAL, OPC_SLT = 0x2A | OPC_SPECIAL, OPC_SLTU = 0x2B | OPC_SPECIAL, OPC_DADD = 0x2C | OPC_SPECIAL, OPC_DADDU = 0x2D | OPC_SPECIAL, OPC_DSUB = 0x2E | OPC_SPECIAL, OPC_DSUBU = 0x2F | OPC_SPECIAL, /* Jumps */ OPC_JR = 0x08 | OPC_SPECIAL, /* Also JR.HB */ OPC_JALR = 0x09 | OPC_SPECIAL, /* Also JALR.HB */ OPC_JALRC = OPC_JALR | (0x5 << 6), OPC_JALRS = 0x10 | OPC_SPECIAL | (0x5 << 6), /* Traps */ OPC_TGE = 0x30 | OPC_SPECIAL, OPC_TGEU = 0x31 | OPC_SPECIAL, OPC_TLT = 0x32 | OPC_SPECIAL, OPC_TLTU = 0x33 | OPC_SPECIAL, OPC_TEQ = 0x34 | OPC_SPECIAL, OPC_TNE = 0x36 | OPC_SPECIAL, /* HI / LO registers load & stores */ OPC_MFHI = 0x10 | OPC_SPECIAL, OPC_MTHI = 0x11 | OPC_SPECIAL, OPC_MFLO = 0x12 | OPC_SPECIAL, OPC_MTLO = 0x13 | OPC_SPECIAL, /* Conditional moves */ OPC_MOVZ = 0x0A | OPC_SPECIAL, OPC_MOVN = 0x0B | OPC_SPECIAL, OPC_MOVCI = 0x01 | OPC_SPECIAL, /* Special */ OPC_PMON = 0x05 | OPC_SPECIAL, /* unofficial */ OPC_SYSCALL = 0x0C | OPC_SPECIAL, OPC_BREAK = 0x0D | OPC_SPECIAL, OPC_SPIM = 0x0E | OPC_SPECIAL, /* unofficial */ OPC_SYNC = 0x0F | OPC_SPECIAL, OPC_SPECIAL15_RESERVED = 0x15 | OPC_SPECIAL, OPC_SPECIAL28_RESERVED = 0x28 | OPC_SPECIAL, OPC_SPECIAL29_RESERVED = 0x29 | OPC_SPECIAL, OPC_SPECIAL35_RESERVED = 0x35 | OPC_SPECIAL, OPC_SPECIAL37_RESERVED = 0x37 | OPC_SPECIAL, OPC_SPECIAL39_RESERVED = 0x39 | OPC_SPECIAL, OPC_SPECIAL3D_RESERVED = 0x3D | OPC_SPECIAL, }; /* Multiplication variants of the vr54xx. */ #define MASK_MUL_VR54XX(op) MASK_SPECIAL(op) | (op & (0x1F << 6)) enum { OPC_VR54XX_MULS = (0x03 << 6) | OPC_MULT, OPC_VR54XX_MULSU = (0x03 << 6) | OPC_MULTU, OPC_VR54XX_MACC = (0x05 << 6) | OPC_MULT, OPC_VR54XX_MACCU = (0x05 << 6) | OPC_MULTU, OPC_VR54XX_MSAC = (0x07 << 6) | OPC_MULT, OPC_VR54XX_MSACU = (0x07 << 6) | OPC_MULTU, OPC_VR54XX_MULHI = (0x09 << 6) | OPC_MULT, OPC_VR54XX_MULHIU = (0x09 << 6) | OPC_MULTU, OPC_VR54XX_MULSHI = (0x0B << 6) | OPC_MULT, OPC_VR54XX_MULSHIU = (0x0B << 6) | OPC_MULTU, OPC_VR54XX_MACCHI = (0x0D << 6) | OPC_MULT, OPC_VR54XX_MACCHIU = (0x0D << 6) | OPC_MULTU, OPC_VR54XX_MSACHI = (0x0F << 6) | OPC_MULT, OPC_VR54XX_MSACHIU = (0x0F << 6) | OPC_MULTU, }; /* REGIMM (rt field) opcodes */ #define MASK_REGIMM(op) MASK_OP_MAJOR(op) | (op & (0x1F << 16)) enum { OPC_BLTZ = (0x00 << 16) | OPC_REGIMM, OPC_BLTZL = (0x02 << 16) | OPC_REGIMM, OPC_BGEZ = (0x01 << 16) | OPC_REGIMM, OPC_BGEZL = (0x03 << 16) | OPC_REGIMM, OPC_BLTZAL = (0x10 << 16) | OPC_REGIMM, OPC_BLTZALS = OPC_BLTZAL | 0x5, /* microMIPS */ OPC_BLTZALL = (0x12 << 16) | OPC_REGIMM, OPC_BGEZAL = (0x11 << 16) | OPC_REGIMM, OPC_BGEZALS = OPC_BGEZAL | 0x5, /* microMIPS */ OPC_BGEZALL = (0x13 << 16) | OPC_REGIMM, OPC_TGEI = (0x08 << 16) | OPC_REGIMM, OPC_TGEIU = (0x09 << 16) | OPC_REGIMM, OPC_TLTI = (0x0A << 16) | OPC_REGIMM, OPC_TLTIU = (0x0B << 16) | OPC_REGIMM, OPC_TEQI = (0x0C << 16) | OPC_REGIMM, OPC_TNEI = (0x0E << 16) | OPC_REGIMM, OPC_SYNCI = (0x1F << 16) | OPC_REGIMM, }; /* Special2 opcodes */ #define MASK_SPECIAL2(op) MASK_OP_MAJOR(op) | (op & 0x3F) enum { /* Multiply & xxx operations */ OPC_MADD = 0x00 | OPC_SPECIAL2, OPC_MADDU = 0x01 | OPC_SPECIAL2, OPC_MUL = 0x02 | OPC_SPECIAL2, OPC_MSUB = 0x04 | OPC_SPECIAL2, OPC_MSUBU = 0x05 | OPC_SPECIAL2, /* Loongson 2F */ OPC_MULT_G_2F = 0x10 | OPC_SPECIAL2, OPC_DMULT_G_2F = 0x11 | OPC_SPECIAL2, OPC_MULTU_G_2F = 0x12 | OPC_SPECIAL2, OPC_DMULTU_G_2F = 0x13 | OPC_SPECIAL2, OPC_DIV_G_2F = 0x14 | OPC_SPECIAL2, OPC_DDIV_G_2F = 0x15 | OPC_SPECIAL2, OPC_DIVU_G_2F = 0x16 | OPC_SPECIAL2, OPC_DDIVU_G_2F = 0x17 | OPC_SPECIAL2, OPC_MOD_G_2F = 0x1c | OPC_SPECIAL2, OPC_DMOD_G_2F = 0x1d | OPC_SPECIAL2, OPC_MODU_G_2F = 0x1e | OPC_SPECIAL2, OPC_DMODU_G_2F = 0x1f | OPC_SPECIAL2, /* Misc */ OPC_CLZ = 0x20 | OPC_SPECIAL2, OPC_CLO = 0x21 | OPC_SPECIAL2, OPC_DCLZ = 0x24 | OPC_SPECIAL2, OPC_DCLO = 0x25 | OPC_SPECIAL2, /* Special */ OPC_SDBBP = 0x3F | OPC_SPECIAL2, }; /* Special3 opcodes */ #define MASK_SPECIAL3(op) MASK_OP_MAJOR(op) | (op & 0x3F) enum { OPC_EXT = 0x00 | OPC_SPECIAL3, OPC_DEXTM = 0x01 | OPC_SPECIAL3, OPC_DEXTU = 0x02 | OPC_SPECIAL3, OPC_DEXT = 0x03 | OPC_SPECIAL3, OPC_INS = 0x04 | OPC_SPECIAL3, OPC_DINSM = 0x05 | OPC_SPECIAL3, OPC_DINSU = 0x06 | OPC_SPECIAL3, OPC_DINS = 0x07 | OPC_SPECIAL3, OPC_FORK = 0x08 | OPC_SPECIAL3, OPC_YIELD = 0x09 | OPC_SPECIAL3, OPC_BSHFL = 0x20 | OPC_SPECIAL3, OPC_DBSHFL = 0x24 | OPC_SPECIAL3, OPC_RDHWR = 0x3B | OPC_SPECIAL3, /* Loongson 2E */ OPC_MULT_G_2E = 0x18 | OPC_SPECIAL3, OPC_MULTU_G_2E = 0x19 | OPC_SPECIAL3, OPC_DIV_G_2E = 0x1A | OPC_SPECIAL3, OPC_DIVU_G_2E = 0x1B | OPC_SPECIAL3, OPC_DMULT_G_2E = 0x1C | OPC_SPECIAL3, OPC_DMULTU_G_2E = 0x1D | OPC_SPECIAL3, OPC_DDIV_G_2E = 0x1E | OPC_SPECIAL3, OPC_DDIVU_G_2E = 0x1F | OPC_SPECIAL3, OPC_MOD_G_2E = 0x22 | OPC_SPECIAL3, OPC_MODU_G_2E = 0x23 | OPC_SPECIAL3, OPC_DMOD_G_2E = 0x26 | OPC_SPECIAL3, OPC_DMODU_G_2E = 0x27 | OPC_SPECIAL3, }; /* BSHFL opcodes */ #define MASK_BSHFL(op) MASK_SPECIAL3(op) | (op & (0x1F << 6)) enum { OPC_WSBH = (0x02 << 6) | OPC_BSHFL, OPC_SEB = (0x10 << 6) | OPC_BSHFL, OPC_SEH = (0x18 << 6) | OPC_BSHFL, }; /* DBSHFL opcodes */ #define MASK_DBSHFL(op) MASK_SPECIAL3(op) | (op & (0x1F << 6)) enum { OPC_DSBH = (0x02 << 6) | OPC_DBSHFL, OPC_DSHD = (0x05 << 6) | OPC_DBSHFL, }; /* Coprocessor 0 (rs field) */ #define MASK_CP0(op) MASK_OP_MAJOR(op) | (op & (0x1F << 21)) enum { OPC_MFC0 = (0x00 << 21) | OPC_CP0, OPC_DMFC0 = (0x01 << 21) | OPC_CP0, OPC_MTC0 = (0x04 << 21) | OPC_CP0, OPC_DMTC0 = (0x05 << 21) | OPC_CP0, OPC_MFTR = (0x08 << 21) | OPC_CP0, OPC_RDPGPR = (0x0A << 21) | OPC_CP0, OPC_MFMC0 = (0x0B << 21) | OPC_CP0, OPC_MTTR = (0x0C << 21) | OPC_CP0, OPC_WRPGPR = (0x0E << 21) | OPC_CP0, OPC_C0 = (0x10 << 21) | OPC_CP0, OPC_C0_FIRST = (0x10 << 21) | OPC_CP0, OPC_C0_LAST = (0x1F << 21) | OPC_CP0, }; /* MFMC0 opcodes */ #define MASK_MFMC0(op) MASK_CP0(op) | (op & 0xFFFF) enum { OPC_DMT = 0x01 | (0 << 5) | (0x0F << 6) | (0x01 << 11) | OPC_MFMC0, OPC_EMT = 0x01 | (1 << 5) | (0x0F << 6) | (0x01 << 11) | OPC_MFMC0, OPC_DVPE = 0x01 | (0 << 5) | OPC_MFMC0, OPC_EVPE = 0x01 | (1 << 5) | OPC_MFMC0, OPC_DI = (0 << 5) | (0x0C << 11) | OPC_MFMC0, OPC_EI = (1 << 5) | (0x0C << 11) | OPC_MFMC0, }; /* Coprocessor 0 (with rs == C0) */ #define MASK_C0(op) MASK_CP0(op) | (op & 0x3F) enum { OPC_TLBR = 0x01 | OPC_C0, OPC_TLBWI = 0x02 | OPC_C0, OPC_TLBWR = 0x06 | OPC_C0, OPC_TLBP = 0x08 | OPC_C0, OPC_RFE = 0x10 | OPC_C0, OPC_ERET = 0x18 | OPC_C0, OPC_DERET = 0x1F | OPC_C0, OPC_WAIT = 0x20 | OPC_C0, }; /* Coprocessor 1 (rs field) */ #define MASK_CP1(op) MASK_OP_MAJOR(op) | (op & (0x1F << 21)) /* Values for the fmt field in FP instructions */ enum { /* 0 - 15 are reserved */ FMT_S = 16, /* single fp */ FMT_D = 17, /* double fp */ FMT_E = 18, /* extended fp */ FMT_Q = 19, /* quad fp */ FMT_W = 20, /* 32-bit fixed */ FMT_L = 21, /* 64-bit fixed */ FMT_PS = 22, /* paired single fp */ /* 23 - 31 are reserved */ }; enum { OPC_MFC1 = (0x00 << 21) | OPC_CP1, OPC_DMFC1 = (0x01 << 21) | OPC_CP1, OPC_CFC1 = (0x02 << 21) | OPC_CP1, OPC_MFHC1 = (0x03 << 21) | OPC_CP1, OPC_MTC1 = (0x04 << 21) | OPC_CP1, OPC_DMTC1 = (0x05 << 21) | OPC_CP1, OPC_CTC1 = (0x06 << 21) | OPC_CP1, OPC_MTHC1 = (0x07 << 21) | OPC_CP1, OPC_BC1 = (0x08 << 21) | OPC_CP1, /* bc */ OPC_BC1ANY2 = (0x09 << 21) | OPC_CP1, OPC_BC1ANY4 = (0x0A << 21) | OPC_CP1, OPC_S_FMT = (FMT_S << 21) | OPC_CP1, OPC_D_FMT = (FMT_D << 21) | OPC_CP1, OPC_E_FMT = (FMT_E << 21) | OPC_CP1, OPC_Q_FMT = (FMT_Q << 21) | OPC_CP1, OPC_W_FMT = (FMT_W << 21) | OPC_CP1, OPC_L_FMT = (FMT_L << 21) | OPC_CP1, OPC_PS_FMT = (FMT_PS << 21) | OPC_CP1, }; #define MASK_CP1_FUNC(op) MASK_CP1(op) | (op & 0x3F) #define MASK_BC1(op) MASK_CP1(op) | (op & (0x3 << 16)) enum { OPC_BC1F = (0x00 << 16) | OPC_BC1, OPC_BC1T = (0x01 << 16) | OPC_BC1, OPC_BC1FL = (0x02 << 16) | OPC_BC1, OPC_BC1TL = (0x03 << 16) | OPC_BC1, }; enum { OPC_BC1FANY2 = (0x00 << 16) | OPC_BC1ANY2, OPC_BC1TANY2 = (0x01 << 16) | OPC_BC1ANY2, }; enum { OPC_BC1FANY4 = (0x00 << 16) | OPC_BC1ANY4, OPC_BC1TANY4 = (0x01 << 16) | OPC_BC1ANY4, }; #define MASK_CP2(op) MASK_OP_MAJOR(op) | (op & (0x1F << 21)) enum { OPC_MFC2 = (0x00 << 21) | OPC_CP2, OPC_DMFC2 = (0x01 << 21) | OPC_CP2, OPC_CFC2 = (0x02 << 21) | OPC_CP2, OPC_MFHC2 = (0x03 << 21) | OPC_CP2, OPC_MTC2 = (0x04 << 21) | OPC_CP2, OPC_DMTC2 = (0x05 << 21) | OPC_CP2, OPC_CTC2 = (0x06 << 21) | OPC_CP2, OPC_MTHC2 = (0x07 << 21) | OPC_CP2, OPC_BC2 = (0x08 << 21) | OPC_CP2, }; #define MASK_CP3(op) MASK_OP_MAJOR(op) | (op & 0x3F) enum { OPC_LWXC1 = 0x00 | OPC_CP3, OPC_LDXC1 = 0x01 | OPC_CP3, OPC_LUXC1 = 0x05 | OPC_CP3, OPC_SWXC1 = 0x08 | OPC_CP3, OPC_SDXC1 = 0x09 | OPC_CP3, OPC_SUXC1 = 0x0D | OPC_CP3, OPC_PREFX = 0x0F | OPC_CP3, OPC_ALNV_PS = 0x1E | OPC_CP3, OPC_MADD_S = 0x20 | OPC_CP3, OPC_MADD_D = 0x21 | OPC_CP3, OPC_MADD_PS = 0x26 | OPC_CP3, OPC_MSUB_S = 0x28 | OPC_CP3, OPC_MSUB_D = 0x29 | OPC_CP3, OPC_MSUB_PS = 0x2E | OPC_CP3, OPC_NMADD_S = 0x30 | OPC_CP3, OPC_NMADD_D = 0x31 | OPC_CP3, OPC_NMADD_PS= 0x36 | OPC_CP3, OPC_NMSUB_S = 0x38 | OPC_CP3, OPC_NMSUB_D = 0x39 | OPC_CP3, OPC_NMSUB_PS= 0x3E | OPC_CP3, }; /* global register indices */ static TCGv_ptr cpu_env; static TCGv cpu_gpr[32], cpu_PC; static TCGv cpu_HI[MIPS_DSP_ACC], cpu_LO[MIPS_DSP_ACC], cpu_ACX[MIPS_DSP_ACC]; static TCGv cpu_dspctrl, btarget, bcond; static TCGv_i32 hflags; static TCGv_i32 fpu_fcr0, fpu_fcr31; static uint32_t gen_opc_hflags[OPC_BUF_SIZE]; #include "gen-icount.h" #define gen_helper_0i(name, arg) do { \ TCGv_i32 helper_tmp = tcg_const_i32(arg); \ gen_helper_##name(helper_tmp); \ tcg_temp_free_i32(helper_tmp); \ } while(0) #define gen_helper_1i(name, arg1, arg2) do { \ TCGv_i32 helper_tmp = tcg_const_i32(arg2); \ gen_helper_##name(arg1, helper_tmp); \ tcg_temp_free_i32(helper_tmp); \ } while(0) #define gen_helper_2i(name, arg1, arg2, arg3) do { \ TCGv_i32 helper_tmp = tcg_const_i32(arg3); \ gen_helper_##name(arg1, arg2, helper_tmp); \ tcg_temp_free_i32(helper_tmp); \ } while(0) #define gen_helper_3i(name, arg1, arg2, arg3, arg4) do { \ TCGv_i32 helper_tmp = tcg_const_i32(arg4); \ gen_helper_##name(arg1, arg2, arg3, helper_tmp); \ tcg_temp_free_i32(helper_tmp); \ } while(0) typedef struct DisasContext { struct TranslationBlock *tb; target_ulong pc, saved_pc; uint32_t opcode; int singlestep_enabled; /* Routine used to access memory */ int mem_idx; uint32_t hflags, saved_hflags; int bstate; target_ulong btarget; } DisasContext; enum { BS_NONE = 0, /* We go out of the TB without reaching a branch or an * exception condition */ BS_STOP = 1, /* We want to stop translation for any reason */ BS_BRANCH = 2, /* We reached a branch condition */ BS_EXCP = 3, /* We reached an exception condition */ }; static const char *regnames[] = { "r0", "at", "v0", "v1", "a0", "a1", "a2", "a3", "t0", "t1", "t2", "t3", "t4", "t5", "t6", "t7", "s0", "s1", "s2", "s3", "s4", "s5", "s6", "s7", "t8", "t9", "k0", "k1", "gp", "sp", "s8", "ra", }; static const char *regnames_HI[] = { "HI0", "HI1", "HI2", "HI3", }; static const char *regnames_LO[] = { "LO0", "LO1", "LO2", "LO3", }; static const char *regnames_ACX[] = { "ACX0", "ACX1", "ACX2", "ACX3", }; static const char *fregnames[] = { "f0", "f1", "f2", "f3", "f4", "f5", "f6", "f7", "f8", "f9", "f10", "f11", "f12", "f13", "f14", "f15", "f16", "f17", "f18", "f19", "f20", "f21", "f22", "f23", "f24", "f25", "f26", "f27", "f28", "f29", "f30", "f31", }; #ifdef MIPS_DEBUG_DISAS #define MIPS_DEBUG(fmt, ...) \ qemu_log_mask(CPU_LOG_TB_IN_ASM, \ TARGET_FMT_lx ": %08x " fmt "\n", \ ctx->pc, ctx->opcode , ## __VA_ARGS__) #define LOG_DISAS(...) qemu_log_mask(CPU_LOG_TB_IN_ASM, ## __VA_ARGS__) #else #define MIPS_DEBUG(fmt, ...) do { } while(0) #define LOG_DISAS(...) do { } while (0) #endif #define MIPS_INVAL(op) \ do { \ MIPS_DEBUG("Invalid %s %03x %03x %03x", op, ctx->opcode >> 26, \ ctx->opcode & 0x3F, ((ctx->opcode >> 16) & 0x1F)); \ } while (0) /* General purpose registers moves. */ static inline void gen_load_gpr (TCGv t, int reg) { if (reg == 0) tcg_gen_movi_tl(t, 0); else tcg_gen_mov_tl(t, cpu_gpr[reg]); } static inline void gen_store_gpr (TCGv t, int reg) { if (reg != 0) tcg_gen_mov_tl(cpu_gpr[reg], t); } /* Moves to/from ACX register. */ static inline void gen_load_ACX (TCGv t, int reg) { tcg_gen_mov_tl(t, cpu_ACX[reg]); } static inline void gen_store_ACX (TCGv t, int reg) { tcg_gen_mov_tl(cpu_ACX[reg], t); } /* Moves to/from shadow registers. */ static inline void gen_load_srsgpr (int from, int to) { TCGv t0 = tcg_temp_new(); if (from == 0) tcg_gen_movi_tl(t0, 0); else { TCGv_i32 t2 = tcg_temp_new_i32(); TCGv_ptr addr = tcg_temp_new_ptr(); tcg_gen_ld_i32(t2, cpu_env, offsetof(CPUState, CP0_SRSCtl)); tcg_gen_shri_i32(t2, t2, CP0SRSCtl_PSS); tcg_gen_andi_i32(t2, t2, 0xf); tcg_gen_muli_i32(t2, t2, sizeof(target_ulong) * 32); tcg_gen_ext_i32_ptr(addr, t2); tcg_gen_add_ptr(addr, cpu_env, addr); tcg_gen_ld_tl(t0, addr, sizeof(target_ulong) * from); tcg_temp_free_ptr(addr); tcg_temp_free_i32(t2); } gen_store_gpr(t0, to); tcg_temp_free(t0); } static inline void gen_store_srsgpr (int from, int to) { if (to != 0) { TCGv t0 = tcg_temp_new(); TCGv_i32 t2 = tcg_temp_new_i32(); TCGv_ptr addr = tcg_temp_new_ptr(); gen_load_gpr(t0, from); tcg_gen_ld_i32(t2, cpu_env, offsetof(CPUState, CP0_SRSCtl)); tcg_gen_shri_i32(t2, t2, CP0SRSCtl_PSS); tcg_gen_andi_i32(t2, t2, 0xf); tcg_gen_muli_i32(t2, t2, sizeof(target_ulong) * 32); tcg_gen_ext_i32_ptr(addr, t2); tcg_gen_add_ptr(addr, cpu_env, addr); tcg_gen_st_tl(t0, addr, sizeof(target_ulong) * to); tcg_temp_free_ptr(addr); tcg_temp_free_i32(t2); tcg_temp_free(t0); } } /* Floating point register moves. */ static inline void gen_load_fpr32 (TCGv_i32 t, int reg) { tcg_gen_ld_i32(t, cpu_env, offsetof(CPUState, active_fpu.fpr[reg].w[FP_ENDIAN_IDX])); } static inline void gen_store_fpr32 (TCGv_i32 t, int reg) { tcg_gen_st_i32(t, cpu_env, offsetof(CPUState, active_fpu.fpr[reg].w[FP_ENDIAN_IDX])); } static inline void gen_load_fpr32h (TCGv_i32 t, int reg) { tcg_gen_ld_i32(t, cpu_env, offsetof(CPUState, active_fpu.fpr[reg].w[!FP_ENDIAN_IDX])); } static inline void gen_store_fpr32h (TCGv_i32 t, int reg) { tcg_gen_st_i32(t, cpu_env, offsetof(CPUState, active_fpu.fpr[reg].w[!FP_ENDIAN_IDX])); } static inline void gen_load_fpr64 (DisasContext *ctx, TCGv_i64 t, int reg) { if (ctx->hflags & MIPS_HFLAG_F64) { tcg_gen_ld_i64(t, cpu_env, offsetof(CPUState, active_fpu.fpr[reg].d)); } else { TCGv_i32 t0 = tcg_temp_new_i32(); TCGv_i32 t1 = tcg_temp_new_i32(); gen_load_fpr32(t0, reg & ~1); gen_load_fpr32(t1, reg | 1); tcg_gen_concat_i32_i64(t, t0, t1); tcg_temp_free_i32(t0); tcg_temp_free_i32(t1); } } static inline void gen_store_fpr64 (DisasContext *ctx, TCGv_i64 t, int reg) { if (ctx->hflags & MIPS_HFLAG_F64) { tcg_gen_st_i64(t, cpu_env, offsetof(CPUState, active_fpu.fpr[reg].d)); } else { TCGv_i64 t0 = tcg_temp_new_i64(); TCGv_i32 t1 = tcg_temp_new_i32(); tcg_gen_trunc_i64_i32(t1, t); gen_store_fpr32(t1, reg & ~1); tcg_gen_shri_i64(t0, t, 32); tcg_gen_trunc_i64_i32(t1, t0); gen_store_fpr32(t1, reg | 1); tcg_temp_free_i32(t1); tcg_temp_free_i64(t0); } } static inline int get_fp_bit (int cc) { if (cc) return 24 + cc; else return 23; } /* Tests */ static inline void gen_save_pc(target_ulong pc) { tcg_gen_movi_tl(cpu_PC, pc); } static inline void save_cpu_state (DisasContext *ctx, int do_save_pc) { LOG_DISAS("hflags %08x saved %08x\n", ctx->hflags, ctx->saved_hflags); if (do_save_pc && ctx->pc != ctx->saved_pc) { gen_save_pc(ctx->pc); ctx->saved_pc = ctx->pc; } if (ctx->hflags != ctx->saved_hflags) { tcg_gen_movi_i32(hflags, ctx->hflags); ctx->saved_hflags = ctx->hflags; switch (ctx->hflags & MIPS_HFLAG_BMASK_BASE) { case MIPS_HFLAG_BR: break; case MIPS_HFLAG_BC: case MIPS_HFLAG_BL: case MIPS_HFLAG_B: tcg_gen_movi_tl(btarget, ctx->btarget); break; } } } static inline void restore_cpu_state (CPUState *env, DisasContext *ctx) { ctx->saved_hflags = ctx->hflags; switch (ctx->hflags & MIPS_HFLAG_BMASK_BASE) { case MIPS_HFLAG_BR: break; case MIPS_HFLAG_BC: case MIPS_HFLAG_BL: case MIPS_HFLAG_B: ctx->btarget = env->btarget; break; } } static inline void generate_exception_err (DisasContext *ctx, int excp, int err) { TCGv_i32 texcp = tcg_const_i32(excp); TCGv_i32 terr = tcg_const_i32(err); save_cpu_state(ctx, 1); gen_helper_raise_exception_err(texcp, terr); tcg_temp_free_i32(terr); tcg_temp_free_i32(texcp); } static inline void generate_exception (DisasContext *ctx, int excp) { save_cpu_state(ctx, 1); gen_helper_0i(raise_exception, excp); } /* Addresses computation */ static inline void gen_op_addr_add (DisasContext *ctx, TCGv ret, TCGv arg0, TCGv arg1) { tcg_gen_add_tl(ret, arg0, arg1); #if defined(TARGET_MIPS64) /* For compatibility with 32-bit code, data reference in user mode with Status_UX = 0 should be casted to 32-bit and sign extended. See the MIPS64 PRA manual, section 4.10. */ if (((ctx->hflags & MIPS_HFLAG_KSU) == MIPS_HFLAG_UM) && !(ctx->hflags & MIPS_HFLAG_UX)) { tcg_gen_ext32s_i64(ret, ret); } #endif } static inline void check_cp0_enabled(DisasContext *ctx) { if (unlikely(!(ctx->hflags & MIPS_HFLAG_CP0))) generate_exception_err(ctx, EXCP_CpU, 0); } static inline void check_cp1_enabled(DisasContext *ctx) { if (unlikely(!(ctx->hflags & MIPS_HFLAG_FPU))) generate_exception_err(ctx, EXCP_CpU, 1); } /* Verify that the processor is running with COP1X instructions enabled. This is associated with the nabla symbol in the MIPS32 and MIPS64 opcode tables. */ static inline void check_cop1x(DisasContext *ctx) { if (unlikely(!(ctx->hflags & MIPS_HFLAG_COP1X))) generate_exception(ctx, EXCP_RI); } /* Verify that the processor is running with 64-bit floating-point operations enabled. */ static inline void check_cp1_64bitmode(DisasContext *ctx) { if (unlikely(~ctx->hflags & (MIPS_HFLAG_F64 | MIPS_HFLAG_COP1X))) generate_exception(ctx, EXCP_RI); } /* * Verify if floating point register is valid; an operation is not defined * if bit 0 of any register specification is set and the FR bit in the * Status register equals zero, since the register numbers specify an * even-odd pair of adjacent coprocessor general registers. When the FR bit * in the Status register equals one, both even and odd register numbers * are valid. This limitation exists only for 64 bit wide (d,l,ps) registers. * * Multiple 64 bit wide registers can be checked by calling * gen_op_cp1_registers(freg1 | freg2 | ... | fregN); */ static inline void check_cp1_registers(DisasContext *ctx, int regs) { if (unlikely(!(ctx->hflags & MIPS_HFLAG_F64) && (regs & 1))) generate_exception(ctx, EXCP_RI); } /* This code generates a "reserved instruction" exception if the CPU does not support the instruction set corresponding to flags. */ static inline void check_insn(CPUState *env, DisasContext *ctx, int flags) { if (unlikely(!(env->insn_flags & flags))) generate_exception(ctx, EXCP_RI); } /* This code generates a "reserved instruction" exception if 64-bit instructions are not enabled. */ static inline void check_mips_64(DisasContext *ctx) { if (unlikely(!(ctx->hflags & MIPS_HFLAG_64))) generate_exception(ctx, EXCP_RI); } /* Define small wrappers for gen_load_fpr* so that we have a uniform calling interface for 32 and 64-bit FPRs. No sense in changing all callers for gen_load_fpr32 when we need the CTX parameter for this one use. */ #define gen_ldcmp_fpr32(ctx, x, y) gen_load_fpr32(x, y) #define gen_ldcmp_fpr64(ctx, x, y) gen_load_fpr64(ctx, x, y) #define FOP_CONDS(type, abs, fmt, ifmt, bits) \ static inline void gen_cmp ## type ## _ ## fmt(DisasContext *ctx, int n, \ int ft, int fs, int cc) \ { \ TCGv_i##bits fp0 = tcg_temp_new_i##bits (); \ TCGv_i##bits fp1 = tcg_temp_new_i##bits (); \ switch (ifmt) { \ case FMT_PS: \ check_cp1_64bitmode(ctx); \ break; \ case FMT_D: \ if (abs) { \ check_cop1x(ctx); \ } \ check_cp1_registers(ctx, fs | ft); \ break; \ case FMT_S: \ if (abs) { \ check_cop1x(ctx); \ } \ break; \ } \ gen_ldcmp_fpr##bits (ctx, fp0, fs); \ gen_ldcmp_fpr##bits (ctx, fp1, ft); \ switch (n) { \ case 0: gen_helper_2i(cmp ## type ## _ ## fmt ## _f, fp0, fp1, cc); break;\ case 1: gen_helper_2i(cmp ## type ## _ ## fmt ## _un, fp0, fp1, cc); break;\ case 2: gen_helper_2i(cmp ## type ## _ ## fmt ## _eq, fp0, fp1, cc); break;\ case 3: gen_helper_2i(cmp ## type ## _ ## fmt ## _ueq, fp0, fp1, cc); break;\ case 4: gen_helper_2i(cmp ## type ## _ ## fmt ## _olt, fp0, fp1, cc); break;\ case 5: gen_helper_2i(cmp ## type ## _ ## fmt ## _ult, fp0, fp1, cc); break;\ case 6: gen_helper_2i(cmp ## type ## _ ## fmt ## _ole, fp0, fp1, cc); break;\ case 7: gen_helper_2i(cmp ## type ## _ ## fmt ## _ule, fp0, fp1, cc); break;\ case 8: gen_helper_2i(cmp ## type ## _ ## fmt ## _sf, fp0, fp1, cc); break;\ case 9: gen_helper_2i(cmp ## type ## _ ## fmt ## _ngle, fp0, fp1, cc); break;\ case 10: gen_helper_2i(cmp ## type ## _ ## fmt ## _seq, fp0, fp1, cc); break;\ case 11: gen_helper_2i(cmp ## type ## _ ## fmt ## _ngl, fp0, fp1, cc); break;\ case 12: gen_helper_2i(cmp ## type ## _ ## fmt ## _lt, fp0, fp1, cc); break;\ case 13: gen_helper_2i(cmp ## type ## _ ## fmt ## _nge, fp0, fp1, cc); break;\ case 14: gen_helper_2i(cmp ## type ## _ ## fmt ## _le, fp0, fp1, cc); break;\ case 15: gen_helper_2i(cmp ## type ## _ ## fmt ## _ngt, fp0, fp1, cc); break;\ default: abort(); \ } \ tcg_temp_free_i##bits (fp0); \ tcg_temp_free_i##bits (fp1); \ } FOP_CONDS(, 0, d, FMT_D, 64) FOP_CONDS(abs, 1, d, FMT_D, 64) FOP_CONDS(, 0, s, FMT_S, 32) FOP_CONDS(abs, 1, s, FMT_S, 32) FOP_CONDS(, 0, ps, FMT_PS, 64) FOP_CONDS(abs, 1, ps, FMT_PS, 64) #undef FOP_CONDS #undef gen_ldcmp_fpr32 #undef gen_ldcmp_fpr64 /* load/store instructions. */ #define OP_LD(insn,fname) \ static inline void op_ld_##insn(TCGv ret, TCGv arg1, DisasContext *ctx) \ { \ tcg_gen_qemu_##fname(ret, arg1, ctx->mem_idx); \ } OP_LD(lb,ld8s); OP_LD(lbu,ld8u); OP_LD(lh,ld16s); OP_LD(lhu,ld16u); OP_LD(lw,ld32s); #if defined(TARGET_MIPS64) OP_LD(lwu,ld32u); OP_LD(ld,ld64); #endif #undef OP_LD #define OP_ST(insn,fname) \ static inline void op_st_##insn(TCGv arg1, TCGv arg2, DisasContext *ctx) \ { \ tcg_gen_qemu_##fname(arg1, arg2, ctx->mem_idx); \ } OP_ST(sb,st8); OP_ST(sh,st16); OP_ST(sw,st32); #if defined(TARGET_MIPS64) OP_ST(sd,st64); #endif #undef OP_ST #ifdef CONFIG_USER_ONLY #define OP_LD_ATOMIC(insn,fname) \ static inline void op_ld_##insn(TCGv ret, TCGv arg1, DisasContext *ctx) \ { \ TCGv t0 = tcg_temp_new(); \ tcg_gen_mov_tl(t0, arg1); \ tcg_gen_qemu_##fname(ret, arg1, ctx->mem_idx); \ tcg_gen_st_tl(t0, cpu_env, offsetof(CPUState, lladdr)); \ tcg_gen_st_tl(ret, cpu_env, offsetof(CPUState, llval)); \ tcg_temp_free(t0); \ } #else #define OP_LD_ATOMIC(insn,fname) \ static inline void op_ld_##insn(TCGv ret, TCGv arg1, DisasContext *ctx) \ { \ gen_helper_2i(insn, ret, arg1, ctx->mem_idx); \ } #endif OP_LD_ATOMIC(ll,ld32s); #if defined(TARGET_MIPS64) OP_LD_ATOMIC(lld,ld64); #endif #undef OP_LD_ATOMIC #ifdef CONFIG_USER_ONLY #define OP_ST_ATOMIC(insn,fname,ldname,almask) \ static inline void op_st_##insn(TCGv arg1, TCGv arg2, int rt, DisasContext *ctx) \ { \ TCGv t0 = tcg_temp_new(); \ int l1 = gen_new_label(); \ int l2 = gen_new_label(); \ \ tcg_gen_andi_tl(t0, arg2, almask); \ tcg_gen_brcondi_tl(TCG_COND_EQ, t0, 0, l1); \ tcg_gen_st_tl(arg2, cpu_env, offsetof(CPUState, CP0_BadVAddr)); \ generate_exception(ctx, EXCP_AdES); \ gen_set_label(l1); \ tcg_gen_ld_tl(t0, cpu_env, offsetof(CPUState, lladdr)); \ tcg_gen_brcond_tl(TCG_COND_NE, arg2, t0, l2); \ tcg_gen_movi_tl(t0, rt | ((almask << 3) & 0x20)); \ tcg_gen_st_tl(t0, cpu_env, offsetof(CPUState, llreg)); \ tcg_gen_st_tl(arg1, cpu_env, offsetof(CPUState, llnewval)); \ gen_helper_0i(raise_exception, EXCP_SC); \ gen_set_label(l2); \ tcg_gen_movi_tl(t0, 0); \ gen_store_gpr(t0, rt); \ tcg_temp_free(t0); \ } #else #define OP_ST_ATOMIC(insn,fname,ldname,almask) \ static inline void op_st_##insn(TCGv arg1, TCGv arg2, int rt, DisasContext *ctx) \ { \ TCGv t0 = tcg_temp_new(); \ gen_helper_3i(insn, t0, arg1, arg2, ctx->mem_idx); \ gen_store_gpr(t0, rt); \ tcg_temp_free(t0); \ } #endif OP_ST_ATOMIC(sc,st32,ld32s,0x3); #if defined(TARGET_MIPS64) OP_ST_ATOMIC(scd,st64,ld64,0x7); #endif #undef OP_ST_ATOMIC static void gen_base_offset_addr (DisasContext *ctx, TCGv addr, int base, int16_t offset) { if (base == 0) { tcg_gen_movi_tl(addr, offset); } else if (offset == 0) { gen_load_gpr(addr, base); } else { tcg_gen_movi_tl(addr, offset); gen_op_addr_add(ctx, addr, cpu_gpr[base], addr); } } static target_ulong pc_relative_pc (DisasContext *ctx) { target_ulong pc = ctx->pc; if (ctx->hflags & MIPS_HFLAG_BMASK) { int branch_bytes = ctx->hflags & MIPS_HFLAG_BDS16 ? 2 : 4; pc -= branch_bytes; } pc &= ~(target_ulong)3; return pc; } /* Load */ static void gen_ld (CPUState *env, DisasContext *ctx, uint32_t opc, int rt, int base, int16_t offset) { const char *opn = "ld"; TCGv t0, t1; if (rt == 0 && env->insn_flags & (INSN_LOONGSON2E | INSN_LOONGSON2F)) { /* Loongson CPU uses a load to zero register for prefetch. We emulate it as a NOP. On other CPU we must perform the actual memory access. */ MIPS_DEBUG("NOP"); return; } t0 = tcg_temp_new(); t1 = tcg_temp_new(); gen_base_offset_addr(ctx, t0, base, offset); switch (opc) { #if defined(TARGET_MIPS64) case OPC_LWU: save_cpu_state(ctx, 0); op_ld_lwu(t0, t0, ctx); gen_store_gpr(t0, rt); opn = "lwu"; break; case OPC_LD: save_cpu_state(ctx, 0); op_ld_ld(t0, t0, ctx); gen_store_gpr(t0, rt); opn = "ld"; break; case OPC_LLD: save_cpu_state(ctx, 1); op_ld_lld(t0, t0, ctx); gen_store_gpr(t0, rt); opn = "lld"; break; case OPC_LDL: save_cpu_state(ctx, 1); gen_load_gpr(t1, rt); gen_helper_3i(ldl, t1, t1, t0, ctx->mem_idx); gen_store_gpr(t1, rt); opn = "ldl"; break; case OPC_LDR: save_cpu_state(ctx, 1); gen_load_gpr(t1, rt); gen_helper_3i(ldr, t1, t1, t0, ctx->mem_idx); gen_store_gpr(t1, rt); opn = "ldr"; break; case OPC_LDPC: save_cpu_state(ctx, 0); tcg_gen_movi_tl(t1, pc_relative_pc(ctx)); gen_op_addr_add(ctx, t0, t0, t1); op_ld_ld(t0, t0, ctx); gen_store_gpr(t0, rt); opn = "ldpc"; break; #endif case OPC_LWPC: save_cpu_state(ctx, 0); tcg_gen_movi_tl(t1, pc_relative_pc(ctx)); gen_op_addr_add(ctx, t0, t0, t1); op_ld_lw(t0, t0, ctx); gen_store_gpr(t0, rt); opn = "lwpc"; break; case OPC_LW: save_cpu_state(ctx, 0); op_ld_lw(t0, t0, ctx); gen_store_gpr(t0, rt); opn = "lw"; break; case OPC_LH: save_cpu_state(ctx, 0); op_ld_lh(t0, t0, ctx); gen_store_gpr(t0, rt); opn = "lh"; break; case OPC_LHU: save_cpu_state(ctx, 0); op_ld_lhu(t0, t0, ctx); gen_store_gpr(t0, rt); opn = "lhu"; break; case OPC_LB: save_cpu_state(ctx, 0); op_ld_lb(t0, t0, ctx); gen_store_gpr(t0, rt); opn = "lb"; break; case OPC_LBU: save_cpu_state(ctx, 0); op_ld_lbu(t0, t0, ctx); gen_store_gpr(t0, rt); opn = "lbu"; break; case OPC_LWL: save_cpu_state(ctx, 1); gen_load_gpr(t1, rt); gen_helper_3i(lwl, t1, t1, t0, ctx->mem_idx); gen_store_gpr(t1, rt); opn = "lwl"; break; case OPC_LWR: save_cpu_state(ctx, 1); gen_load_gpr(t1, rt); gen_helper_3i(lwr, t1, t1, t0, ctx->mem_idx); gen_store_gpr(t1, rt); opn = "lwr"; break; case OPC_LL: save_cpu_state(ctx, 1); op_ld_ll(t0, t0, ctx); gen_store_gpr(t0, rt); opn = "ll"; break; } (void)opn; /* avoid a compiler warning */ MIPS_DEBUG("%s %s, %d(%s)", opn, regnames[rt], offset, regnames[base]); tcg_temp_free(t0); tcg_temp_free(t1); } /* Store */ static void gen_st (DisasContext *ctx, uint32_t opc, int rt, int base, int16_t offset) { const char *opn = "st"; TCGv t0 = tcg_temp_new(); TCGv t1 = tcg_temp_new(); gen_base_offset_addr(ctx, t0, base, offset); gen_load_gpr(t1, rt); switch (opc) { #if defined(TARGET_MIPS64) case OPC_SD: save_cpu_state(ctx, 0); op_st_sd(t1, t0, ctx); opn = "sd"; break; case OPC_SDL: save_cpu_state(ctx, 1); gen_helper_2i(sdl, t1, t0, ctx->mem_idx); opn = "sdl"; break; case OPC_SDR: save_cpu_state(ctx, 1); gen_helper_2i(sdr, t1, t0, ctx->mem_idx); opn = "sdr"; break; #endif case OPC_SW: save_cpu_state(ctx, 0); op_st_sw(t1, t0, ctx); opn = "sw"; break; case OPC_SH: save_cpu_state(ctx, 0); op_st_sh(t1, t0, ctx); opn = "sh"; break; case OPC_SB: save_cpu_state(ctx, 0); op_st_sb(t1, t0, ctx); opn = "sb"; break; case OPC_SWL: save_cpu_state(ctx, 1); gen_helper_2i(swl, t1, t0, ctx->mem_idx); opn = "swl"; break; case OPC_SWR: save_cpu_state(ctx, 1); gen_helper_2i(swr, t1, t0, ctx->mem_idx); opn = "swr"; break; } (void)opn; /* avoid a compiler warning */ MIPS_DEBUG("%s %s, %d(%s)", opn, regnames[rt], offset, regnames[base]); tcg_temp_free(t0); tcg_temp_free(t1); } /* Store conditional */ static void gen_st_cond (DisasContext *ctx, uint32_t opc, int rt, int base, int16_t offset) { const char *opn = "st_cond"; TCGv t0, t1; t0 = tcg_temp_local_new(); gen_base_offset_addr(ctx, t0, base, offset); /* Don't do NOP if destination is zero: we must perform the actual memory access. */ t1 = tcg_temp_local_new(); gen_load_gpr(t1, rt); switch (opc) { #if defined(TARGET_MIPS64) case OPC_SCD: save_cpu_state(ctx, 1); op_st_scd(t1, t0, rt, ctx); opn = "scd"; break; #endif case OPC_SC: save_cpu_state(ctx, 1); op_st_sc(t1, t0, rt, ctx); opn = "sc"; break; } (void)opn; /* avoid a compiler warning */ MIPS_DEBUG("%s %s, %d(%s)", opn, regnames[rt], offset, regnames[base]); tcg_temp_free(t1); tcg_temp_free(t0); } /* Load and store */ static void gen_flt_ldst (DisasContext *ctx, uint32_t opc, int ft, int base, int16_t offset) { const char *opn = "flt_ldst"; TCGv t0 = tcg_temp_new(); gen_base_offset_addr(ctx, t0, base, offset); /* Don't do NOP if destination is zero: we must perform the actual memory access. */ switch (opc) { case OPC_LWC1: { TCGv_i32 fp0 = tcg_temp_new_i32(); tcg_gen_qemu_ld32s(t0, t0, ctx->mem_idx); tcg_gen_trunc_tl_i32(fp0, t0); gen_store_fpr32(fp0, ft); tcg_temp_free_i32(fp0); } opn = "lwc1"; break; case OPC_SWC1: { TCGv_i32 fp0 = tcg_temp_new_i32(); TCGv t1 = tcg_temp_new(); gen_load_fpr32(fp0, ft); tcg_gen_extu_i32_tl(t1, fp0); tcg_gen_qemu_st32(t1, t0, ctx->mem_idx); tcg_temp_free(t1); tcg_temp_free_i32(fp0); } opn = "swc1"; break; case OPC_LDC1: { TCGv_i64 fp0 = tcg_temp_new_i64(); tcg_gen_qemu_ld64(fp0, t0, ctx->mem_idx); gen_store_fpr64(ctx, fp0, ft); tcg_temp_free_i64(fp0); } opn = "ldc1"; break; case OPC_SDC1: { TCGv_i64 fp0 = tcg_temp_new_i64(); gen_load_fpr64(ctx, fp0, ft); tcg_gen_qemu_st64(fp0, t0, ctx->mem_idx); tcg_temp_free_i64(fp0); } opn = "sdc1"; break; default: MIPS_INVAL(opn); generate_exception(ctx, EXCP_RI); goto out; } (void)opn; /* avoid a compiler warning */ MIPS_DEBUG("%s %s, %d(%s)", opn, fregnames[ft], offset, regnames[base]); out: tcg_temp_free(t0); } static void gen_cop1_ldst(CPUState *env, DisasContext *ctx, uint32_t op, int rt, int rs, int16_t imm) { if (env->CP0_Config1 & (1 << CP0C1_FP)) { check_cp1_enabled(ctx); gen_flt_ldst(ctx, op, rt, rs, imm); } else { generate_exception_err(ctx, EXCP_CpU, 1); } } /* Arithmetic with immediate operand */ static void gen_arith_imm (CPUState *env, DisasContext *ctx, uint32_t opc, int rt, int rs, int16_t imm) { target_ulong uimm = (target_long)imm; /* Sign extend to 32/64 bits */ const char *opn = "imm arith"; if (rt == 0 && opc != OPC_ADDI && opc != OPC_DADDI) { /* If no destination, treat it as a NOP. For addi, we must generate the overflow exception when needed. */ MIPS_DEBUG("NOP"); return; } switch (opc) { case OPC_ADDI: { TCGv t0 = tcg_temp_local_new(); TCGv t1 = tcg_temp_new(); TCGv t2 = tcg_temp_new(); int l1 = gen_new_label(); gen_load_gpr(t1, rs); tcg_gen_addi_tl(t0, t1, uimm); tcg_gen_ext32s_tl(t0, t0); tcg_gen_xori_tl(t1, t1, ~uimm); tcg_gen_xori_tl(t2, t0, uimm); tcg_gen_and_tl(t1, t1, t2); tcg_temp_free(t2); tcg_gen_brcondi_tl(TCG_COND_GE, t1, 0, l1); tcg_temp_free(t1); /* operands of same sign, result different sign */ generate_exception(ctx, EXCP_OVERFLOW); gen_set_label(l1); tcg_gen_ext32s_tl(t0, t0); gen_store_gpr(t0, rt); tcg_temp_free(t0); } opn = "addi"; break; case OPC_ADDIU: if (rs != 0) { tcg_gen_addi_tl(cpu_gpr[rt], cpu_gpr[rs], uimm); tcg_gen_ext32s_tl(cpu_gpr[rt], cpu_gpr[rt]); } else { tcg_gen_movi_tl(cpu_gpr[rt], uimm); } opn = "addiu"; break; #if defined(TARGET_MIPS64) case OPC_DADDI: { TCGv t0 = tcg_temp_local_new(); TCGv t1 = tcg_temp_new(); TCGv t2 = tcg_temp_new(); int l1 = gen_new_label(); gen_load_gpr(t1, rs); tcg_gen_addi_tl(t0, t1, uimm); tcg_gen_xori_tl(t1, t1, ~uimm); tcg_gen_xori_tl(t2, t0, uimm); tcg_gen_and_tl(t1, t1, t2); tcg_temp_free(t2); tcg_gen_brcondi_tl(TCG_COND_GE, t1, 0, l1); tcg_temp_free(t1); /* operands of same sign, result different sign */ generate_exception(ctx, EXCP_OVERFLOW); gen_set_label(l1); gen_store_gpr(t0, rt); tcg_temp_free(t0); } opn = "daddi"; break; case OPC_DADDIU: if (rs != 0) { tcg_gen_addi_tl(cpu_gpr[rt], cpu_gpr[rs], uimm); } else { tcg_gen_movi_tl(cpu_gpr[rt], uimm); } opn = "daddiu"; break; #endif } (void)opn; /* avoid a compiler warning */ MIPS_DEBUG("%s %s, %s, " TARGET_FMT_lx, opn, regnames[rt], regnames[rs], uimm); } /* Logic with immediate operand */ static void gen_logic_imm (CPUState *env, uint32_t opc, int rt, int rs, int16_t imm) { target_ulong uimm; const char *opn = "imm logic"; if (rt == 0) { /* If no destination, treat it as a NOP. */ MIPS_DEBUG("NOP"); return; } uimm = (uint16_t)imm; switch (opc) { case OPC_ANDI: if (likely(rs != 0)) tcg_gen_andi_tl(cpu_gpr[rt], cpu_gpr[rs], uimm); else tcg_gen_movi_tl(cpu_gpr[rt], 0); opn = "andi"; break; case OPC_ORI: if (rs != 0) tcg_gen_ori_tl(cpu_gpr[rt], cpu_gpr[rs], uimm); else tcg_gen_movi_tl(cpu_gpr[rt], uimm); opn = "ori"; break; case OPC_XORI: if (likely(rs != 0)) tcg_gen_xori_tl(cpu_gpr[rt], cpu_gpr[rs], uimm); else tcg_gen_movi_tl(cpu_gpr[rt], uimm); opn = "xori"; break; case OPC_LUI: tcg_gen_movi_tl(cpu_gpr[rt], imm << 16); opn = "lui"; break; } (void)opn; /* avoid a compiler warning */ MIPS_DEBUG("%s %s, %s, " TARGET_FMT_lx, opn, regnames[rt], regnames[rs], uimm); } /* Set on less than with immediate operand */ static void gen_slt_imm (CPUState *env, uint32_t opc, int rt, int rs, int16_t imm) { target_ulong uimm = (target_long)imm; /* Sign extend to 32/64 bits */ const char *opn = "imm arith"; TCGv t0; if (rt == 0) { /* If no destination, treat it as a NOP. */ MIPS_DEBUG("NOP"); return; } t0 = tcg_temp_new(); gen_load_gpr(t0, rs); switch (opc) { case OPC_SLTI: tcg_gen_setcondi_tl(TCG_COND_LT, cpu_gpr[rt], t0, uimm); opn = "slti"; break; case OPC_SLTIU: tcg_gen_setcondi_tl(TCG_COND_LTU, cpu_gpr[rt], t0, uimm); opn = "sltiu"; break; } (void)opn; /* avoid a compiler warning */ MIPS_DEBUG("%s %s, %s, " TARGET_FMT_lx, opn, regnames[rt], regnames[rs], uimm); tcg_temp_free(t0); } /* Shifts with immediate operand */ static void gen_shift_imm(CPUState *env, DisasContext *ctx, uint32_t opc, int rt, int rs, int16_t imm) { target_ulong uimm = ((uint16_t)imm) & 0x1f; const char *opn = "imm shift"; TCGv t0; if (rt == 0) { /* If no destination, treat it as a NOP. */ MIPS_DEBUG("NOP"); return; } t0 = tcg_temp_new(); gen_load_gpr(t0, rs); switch (opc) { case OPC_SLL: tcg_gen_shli_tl(t0, t0, uimm); tcg_gen_ext32s_tl(cpu_gpr[rt], t0); opn = "sll"; break; case OPC_SRA: tcg_gen_sari_tl(cpu_gpr[rt], t0, uimm); opn = "sra"; break; case OPC_SRL: if (uimm != 0) { tcg_gen_ext32u_tl(t0, t0); tcg_gen_shri_tl(cpu_gpr[rt], t0, uimm); } else { tcg_gen_ext32s_tl(cpu_gpr[rt], t0); } opn = "srl"; break; case OPC_ROTR: if (uimm != 0) { TCGv_i32 t1 = tcg_temp_new_i32(); tcg_gen_trunc_tl_i32(t1, t0); tcg_gen_rotri_i32(t1, t1, uimm); tcg_gen_ext_i32_tl(cpu_gpr[rt], t1); tcg_temp_free_i32(t1); } else { tcg_gen_ext32s_tl(cpu_gpr[rt], t0); } opn = "rotr"; break; #if defined(TARGET_MIPS64) case OPC_DSLL: tcg_gen_shli_tl(cpu_gpr[rt], t0, uimm); opn = "dsll"; break; case OPC_DSRA: tcg_gen_sari_tl(cpu_gpr[rt], t0, uimm); opn = "dsra"; break; case OPC_DSRL: tcg_gen_shri_tl(cpu_gpr[rt], t0, uimm); opn = "dsrl"; break; case OPC_DROTR: if (uimm != 0) { tcg_gen_rotri_tl(cpu_gpr[rt], t0, uimm); } else { tcg_gen_mov_tl(cpu_gpr[rt], t0); } opn = "drotr"; break; case OPC_DSLL32: tcg_gen_shli_tl(cpu_gpr[rt], t0, uimm + 32); opn = "dsll32"; break; case OPC_DSRA32: tcg_gen_sari_tl(cpu_gpr[rt], t0, uimm + 32); opn = "dsra32"; break; case OPC_DSRL32: tcg_gen_shri_tl(cpu_gpr[rt], t0, uimm + 32); opn = "dsrl32"; break; case OPC_DROTR32: tcg_gen_rotri_tl(cpu_gpr[rt], t0, uimm + 32); opn = "drotr32"; break; #endif } (void)opn; /* avoid a compiler warning */ MIPS_DEBUG("%s %s, %s, " TARGET_FMT_lx, opn, regnames[rt], regnames[rs], uimm); tcg_temp_free(t0); } /* Arithmetic */ static void gen_arith (CPUState *env, DisasContext *ctx, uint32_t opc, int rd, int rs, int rt) { const char *opn = "arith"; if (rd == 0 && opc != OPC_ADD && opc != OPC_SUB && opc != OPC_DADD && opc != OPC_DSUB) { /* If no destination, treat it as a NOP. For add & sub, we must generate the overflow exception when needed. */ MIPS_DEBUG("NOP"); return; } switch (opc) { case OPC_ADD: { TCGv t0 = tcg_temp_local_new(); TCGv t1 = tcg_temp_new(); TCGv t2 = tcg_temp_new(); int l1 = gen_new_label(); gen_load_gpr(t1, rs); gen_load_gpr(t2, rt); tcg_gen_add_tl(t0, t1, t2); tcg_gen_ext32s_tl(t0, t0); tcg_gen_xor_tl(t1, t1, t2); tcg_gen_xor_tl(t2, t0, t2); tcg_gen_andc_tl(t1, t2, t1); tcg_temp_free(t2); tcg_gen_brcondi_tl(TCG_COND_GE, t1, 0, l1); tcg_temp_free(t1); /* operands of same sign, result different sign */ generate_exception(ctx, EXCP_OVERFLOW); gen_set_label(l1); gen_store_gpr(t0, rd); tcg_temp_free(t0); } opn = "add"; break; case OPC_ADDU: if (rs != 0 && rt != 0) { tcg_gen_add_tl(cpu_gpr[rd], cpu_gpr[rs], cpu_gpr[rt]); tcg_gen_ext32s_tl(cpu_gpr[rd], cpu_gpr[rd]); } else if (rs == 0 && rt != 0) { tcg_gen_mov_tl(cpu_gpr[rd], cpu_gpr[rt]); } else if (rs != 0 && rt == 0) { tcg_gen_mov_tl(cpu_gpr[rd], cpu_gpr[rs]); } else { tcg_gen_movi_tl(cpu_gpr[rd], 0); } opn = "addu"; break; case OPC_SUB: { TCGv t0 = tcg_temp_local_new(); TCGv t1 = tcg_temp_new(); TCGv t2 = tcg_temp_new(); int l1 = gen_new_label(); gen_load_gpr(t1, rs); gen_load_gpr(t2, rt); tcg_gen_sub_tl(t0, t1, t2); tcg_gen_ext32s_tl(t0, t0); tcg_gen_xor_tl(t2, t1, t2); tcg_gen_xor_tl(t1, t0, t1); tcg_gen_and_tl(t1, t1, t2); tcg_temp_free(t2); tcg_gen_brcondi_tl(TCG_COND_GE, t1, 0, l1); tcg_temp_free(t1); /* operands of different sign, first operand and result different sign */ generate_exception(ctx, EXCP_OVERFLOW); gen_set_label(l1); gen_store_gpr(t0, rd); tcg_temp_free(t0); } opn = "sub"; break; case OPC_SUBU: if (rs != 0 && rt != 0) { tcg_gen_sub_tl(cpu_gpr[rd], cpu_gpr[rs], cpu_gpr[rt]); tcg_gen_ext32s_tl(cpu_gpr[rd], cpu_gpr[rd]); } else if (rs == 0 && rt != 0) { tcg_gen_neg_tl(cpu_gpr[rd], cpu_gpr[rt]); tcg_gen_ext32s_tl(cpu_gpr[rd], cpu_gpr[rd]); } else if (rs != 0 && rt == 0) { tcg_gen_mov_tl(cpu_gpr[rd], cpu_gpr[rs]); } else { tcg_gen_movi_tl(cpu_gpr[rd], 0); } opn = "subu"; break; #if defined(TARGET_MIPS64) case OPC_DADD: { TCGv t0 = tcg_temp_local_new(); TCGv t1 = tcg_temp_new(); TCGv t2 = tcg_temp_new(); int l1 = gen_new_label(); gen_load_gpr(t1, rs); gen_load_gpr(t2, rt); tcg_gen_add_tl(t0, t1, t2); tcg_gen_xor_tl(t1, t1, t2); tcg_gen_xor_tl(t2, t0, t2); tcg_gen_andc_tl(t1, t2, t1); tcg_temp_free(t2); tcg_gen_brcondi_tl(TCG_COND_GE, t1, 0, l1); tcg_temp_free(t1); /* operands of same sign, result different sign */ generate_exception(ctx, EXCP_OVERFLOW); gen_set_label(l1); gen_store_gpr(t0, rd); tcg_temp_free(t0); } opn = "dadd"; break; case OPC_DADDU: if (rs != 0 && rt != 0) { tcg_gen_add_tl(cpu_gpr[rd], cpu_gpr[rs], cpu_gpr[rt]); } else if (rs == 0 && rt != 0) { tcg_gen_mov_tl(cpu_gpr[rd], cpu_gpr[rt]); } else if (rs != 0 && rt == 0) { tcg_gen_mov_tl(cpu_gpr[rd], cpu_gpr[rs]); } else { tcg_gen_movi_tl(cpu_gpr[rd], 0); } opn = "daddu"; break; case OPC_DSUB: { TCGv t0 = tcg_temp_local_new(); TCGv t1 = tcg_temp_new(); TCGv t2 = tcg_temp_new(); int l1 = gen_new_label(); gen_load_gpr(t1, rs); gen_load_gpr(t2, rt); tcg_gen_sub_tl(t0, t1, t2); tcg_gen_xor_tl(t2, t1, t2); tcg_gen_xor_tl(t1, t0, t1); tcg_gen_and_tl(t1, t1, t2); tcg_temp_free(t2); tcg_gen_brcondi_tl(TCG_COND_GE, t1, 0, l1); tcg_temp_free(t1); /* operands of different sign, first operand and result different sign */ generate_exception(ctx, EXCP_OVERFLOW); gen_set_label(l1); gen_store_gpr(t0, rd); tcg_temp_free(t0); } opn = "dsub"; break; case OPC_DSUBU: if (rs != 0 && rt != 0) { tcg_gen_sub_tl(cpu_gpr[rd], cpu_gpr[rs], cpu_gpr[rt]); } else if (rs == 0 && rt != 0) { tcg_gen_neg_tl(cpu_gpr[rd], cpu_gpr[rt]); } else if (rs != 0 && rt == 0) { tcg_gen_mov_tl(cpu_gpr[rd], cpu_gpr[rs]); } else { tcg_gen_movi_tl(cpu_gpr[rd], 0); } opn = "dsubu"; break; #endif case OPC_MUL: if (likely(rs != 0 && rt != 0)) { tcg_gen_mul_tl(cpu_gpr[rd], cpu_gpr[rs], cpu_gpr[rt]); tcg_gen_ext32s_tl(cpu_gpr[rd], cpu_gpr[rd]); } else { tcg_gen_movi_tl(cpu_gpr[rd], 0); } opn = "mul"; break; } (void)opn; /* avoid a compiler warning */ MIPS_DEBUG("%s %s, %s, %s", opn, regnames[rd], regnames[rs], regnames[rt]); } /* Conditional move */ static void gen_cond_move (CPUState *env, uint32_t opc, int rd, int rs, int rt) { const char *opn = "cond move"; int l1; if (rd == 0) { /* If no destination, treat it as a NOP. For add & sub, we must generate the overflow exception when needed. */ MIPS_DEBUG("NOP"); return; } l1 = gen_new_label(); switch (opc) { case OPC_MOVN: if (likely(rt != 0)) tcg_gen_brcondi_tl(TCG_COND_EQ, cpu_gpr[rt], 0, l1); else tcg_gen_br(l1); opn = "movn"; break; case OPC_MOVZ: if (likely(rt != 0)) tcg_gen_brcondi_tl(TCG_COND_NE, cpu_gpr[rt], 0, l1); opn = "movz"; break; } if (rs != 0) tcg_gen_mov_tl(cpu_gpr[rd], cpu_gpr[rs]); else tcg_gen_movi_tl(cpu_gpr[rd], 0); gen_set_label(l1); (void)opn; /* avoid a compiler warning */ MIPS_DEBUG("%s %s, %s, %s", opn, regnames[rd], regnames[rs], regnames[rt]); } /* Logic */ static void gen_logic (CPUState *env, uint32_t opc, int rd, int rs, int rt) { const char *opn = "logic"; if (rd == 0) { /* If no destination, treat it as a NOP. */ MIPS_DEBUG("NOP"); return; } switch (opc) { case OPC_AND: if (likely(rs != 0 && rt != 0)) { tcg_gen_and_tl(cpu_gpr[rd], cpu_gpr[rs], cpu_gpr[rt]); } else { tcg_gen_movi_tl(cpu_gpr[rd], 0); } opn = "and"; break; case OPC_NOR: if (rs != 0 && rt != 0) { tcg_gen_nor_tl(cpu_gpr[rd], cpu_gpr[rs], cpu_gpr[rt]); } else if (rs == 0 && rt != 0) { tcg_gen_not_tl(cpu_gpr[rd], cpu_gpr[rt]); } else if (rs != 0 && rt == 0) { tcg_gen_not_tl(cpu_gpr[rd], cpu_gpr[rs]); } else { tcg_gen_movi_tl(cpu_gpr[rd], ~((target_ulong)0)); } opn = "nor"; break; case OPC_OR: if (likely(rs != 0 && rt != 0)) { tcg_gen_or_tl(cpu_gpr[rd], cpu_gpr[rs], cpu_gpr[rt]); } else if (rs == 0 && rt != 0) { tcg_gen_mov_tl(cpu_gpr[rd], cpu_gpr[rt]); } else if (rs != 0 && rt == 0) { tcg_gen_mov_tl(cpu_gpr[rd], cpu_gpr[rs]); } else { tcg_gen_movi_tl(cpu_gpr[rd], 0); } opn = "or"; break; case OPC_XOR: if (likely(rs != 0 && rt != 0)) { tcg_gen_xor_tl(cpu_gpr[rd], cpu_gpr[rs], cpu_gpr[rt]); } else if (rs == 0 && rt != 0) { tcg_gen_mov_tl(cpu_gpr[rd], cpu_gpr[rt]); } else if (rs != 0 && rt == 0) { tcg_gen_mov_tl(cpu_gpr[rd], cpu_gpr[rs]); } else { tcg_gen_movi_tl(cpu_gpr[rd], 0); } opn = "xor"; break; } (void)opn; /* avoid a compiler warning */ MIPS_DEBUG("%s %s, %s, %s", opn, regnames[rd], regnames[rs], regnames[rt]); } /* Set on lower than */ static void gen_slt (CPUState *env, uint32_t opc, int rd, int rs, int rt) { const char *opn = "slt"; TCGv t0, t1; if (rd == 0) { /* If no destination, treat it as a NOP. */ MIPS_DEBUG("NOP"); return; } t0 = tcg_temp_new(); t1 = tcg_temp_new(); gen_load_gpr(t0, rs); gen_load_gpr(t1, rt); switch (opc) { case OPC_SLT: tcg_gen_setcond_tl(TCG_COND_LT, cpu_gpr[rd], t0, t1); opn = "slt"; break; case OPC_SLTU: tcg_gen_setcond_tl(TCG_COND_LTU, cpu_gpr[rd], t0, t1); opn = "sltu"; break; } (void)opn; /* avoid a compiler warning */ MIPS_DEBUG("%s %s, %s, %s", opn, regnames[rd], regnames[rs], regnames[rt]); tcg_temp_free(t0); tcg_temp_free(t1); } /* Shifts */ static void gen_shift (CPUState *env, DisasContext *ctx, uint32_t opc, int rd, int rs, int rt) { const char *opn = "shifts"; TCGv t0, t1; if (rd == 0) { /* If no destination, treat it as a NOP. For add & sub, we must generate the overflow exception when needed. */ MIPS_DEBUG("NOP"); return; } t0 = tcg_temp_new(); t1 = tcg_temp_new(); gen_load_gpr(t0, rs); gen_load_gpr(t1, rt); switch (opc) { case OPC_SLLV: tcg_gen_andi_tl(t0, t0, 0x1f); tcg_gen_shl_tl(t0, t1, t0); tcg_gen_ext32s_tl(cpu_gpr[rd], t0); opn = "sllv"; break; case OPC_SRAV: tcg_gen_andi_tl(t0, t0, 0x1f); tcg_gen_sar_tl(cpu_gpr[rd], t1, t0); opn = "srav"; break; case OPC_SRLV: tcg_gen_ext32u_tl(t1, t1); tcg_gen_andi_tl(t0, t0, 0x1f); tcg_gen_shr_tl(t0, t1, t0); tcg_gen_ext32s_tl(cpu_gpr[rd], t0); opn = "srlv"; break; case OPC_ROTRV: { TCGv_i32 t2 = tcg_temp_new_i32(); TCGv_i32 t3 = tcg_temp_new_i32(); tcg_gen_trunc_tl_i32(t2, t0); tcg_gen_trunc_tl_i32(t3, t1); tcg_gen_andi_i32(t2, t2, 0x1f); tcg_gen_rotr_i32(t2, t3, t2); tcg_gen_ext_i32_tl(cpu_gpr[rd], t2); tcg_temp_free_i32(t2); tcg_temp_free_i32(t3); opn = "rotrv"; } break; #if defined(TARGET_MIPS64) case OPC_DSLLV: tcg_gen_andi_tl(t0, t0, 0x3f); tcg_gen_shl_tl(cpu_gpr[rd], t1, t0); opn = "dsllv"; break; case OPC_DSRAV: tcg_gen_andi_tl(t0, t0, 0x3f); tcg_gen_sar_tl(cpu_gpr[rd], t1, t0); opn = "dsrav"; break; case OPC_DSRLV: tcg_gen_andi_tl(t0, t0, 0x3f); tcg_gen_shr_tl(cpu_gpr[rd], t1, t0); opn = "dsrlv"; break; case OPC_DROTRV: tcg_gen_andi_tl(t0, t0, 0x3f); tcg_gen_rotr_tl(cpu_gpr[rd], t1, t0); opn = "drotrv"; break; #endif } (void)opn; /* avoid a compiler warning */ MIPS_DEBUG("%s %s, %s, %s", opn, regnames[rd], regnames[rs], regnames[rt]); tcg_temp_free(t0); tcg_temp_free(t1); } /* Arithmetic on HI/LO registers */ static void gen_HILO (DisasContext *ctx, uint32_t opc, int reg) { const char *opn = "hilo"; if (reg == 0 && (opc == OPC_MFHI || opc == OPC_MFLO)) { /* Treat as NOP. */ MIPS_DEBUG("NOP"); return; } switch (opc) { case OPC_MFHI: tcg_gen_mov_tl(cpu_gpr[reg], cpu_HI[0]); opn = "mfhi"; break; case OPC_MFLO: tcg_gen_mov_tl(cpu_gpr[reg], cpu_LO[0]); opn = "mflo"; break; case OPC_MTHI: if (reg != 0) tcg_gen_mov_tl(cpu_HI[0], cpu_gpr[reg]); else tcg_gen_movi_tl(cpu_HI[0], 0); opn = "mthi"; break; case OPC_MTLO: if (reg != 0) tcg_gen_mov_tl(cpu_LO[0], cpu_gpr[reg]); else tcg_gen_movi_tl(cpu_LO[0], 0); opn = "mtlo"; break; } (void)opn; /* avoid a compiler warning */ MIPS_DEBUG("%s %s", opn, regnames[reg]); } static void gen_muldiv (DisasContext *ctx, uint32_t opc, int rs, int rt) { const char *opn = "mul/div"; TCGv t0, t1; switch (opc) { case OPC_DIV: case OPC_DIVU: #if defined(TARGET_MIPS64) case OPC_DDIV: case OPC_DDIVU: #endif t0 = tcg_temp_local_new(); t1 = tcg_temp_local_new(); break; default: t0 = tcg_temp_new(); t1 = tcg_temp_new(); break; } gen_load_gpr(t0, rs); gen_load_gpr(t1, rt); switch (opc) { case OPC_DIV: { int l1 = gen_new_label(); int l2 = gen_new_label(); tcg_gen_ext32s_tl(t0, t0); tcg_gen_ext32s_tl(t1, t1); tcg_gen_brcondi_tl(TCG_COND_EQ, t1, 0, l1); tcg_gen_brcondi_tl(TCG_COND_NE, t0, INT_MIN, l2); tcg_gen_brcondi_tl(TCG_COND_NE, t1, -1, l2); tcg_gen_mov_tl(cpu_LO[0], t0); tcg_gen_movi_tl(cpu_HI[0], 0); tcg_gen_br(l1); gen_set_label(l2); tcg_gen_div_tl(cpu_LO[0], t0, t1); tcg_gen_rem_tl(cpu_HI[0], t0, t1); tcg_gen_ext32s_tl(cpu_LO[0], cpu_LO[0]); tcg_gen_ext32s_tl(cpu_HI[0], cpu_HI[0]); gen_set_label(l1); } opn = "div"; break; case OPC_DIVU: { int l1 = gen_new_label(); tcg_gen_ext32u_tl(t0, t0); tcg_gen_ext32u_tl(t1, t1); tcg_gen_brcondi_tl(TCG_COND_EQ, t1, 0, l1); tcg_gen_divu_tl(cpu_LO[0], t0, t1); tcg_gen_remu_tl(cpu_HI[0], t0, t1); tcg_gen_ext32s_tl(cpu_LO[0], cpu_LO[0]); tcg_gen_ext32s_tl(cpu_HI[0], cpu_HI[0]); gen_set_label(l1); } opn = "divu"; break; case OPC_MULT: { TCGv_i64 t2 = tcg_temp_new_i64(); TCGv_i64 t3 = tcg_temp_new_i64(); tcg_gen_ext_tl_i64(t2, t0); tcg_gen_ext_tl_i64(t3, t1); tcg_gen_mul_i64(t2, t2, t3); tcg_temp_free_i64(t3); tcg_gen_trunc_i64_tl(t0, t2); tcg_gen_shri_i64(t2, t2, 32); tcg_gen_trunc_i64_tl(t1, t2); tcg_temp_free_i64(t2); tcg_gen_ext32s_tl(cpu_LO[0], t0); tcg_gen_ext32s_tl(cpu_HI[0], t1); } opn = "mult"; break; case OPC_MULTU: { TCGv_i64 t2 = tcg_temp_new_i64(); TCGv_i64 t3 = tcg_temp_new_i64(); tcg_gen_ext32u_tl(t0, t0); tcg_gen_ext32u_tl(t1, t1); tcg_gen_extu_tl_i64(t2, t0); tcg_gen_extu_tl_i64(t3, t1); tcg_gen_mul_i64(t2, t2, t3); tcg_temp_free_i64(t3); tcg_gen_trunc_i64_tl(t0, t2); tcg_gen_shri_i64(t2, t2, 32); tcg_gen_trunc_i64_tl(t1, t2); tcg_temp_free_i64(t2); tcg_gen_ext32s_tl(cpu_LO[0], t0); tcg_gen_ext32s_tl(cpu_HI[0], t1); } opn = "multu"; break; #if defined(TARGET_MIPS64) case OPC_DDIV: { int l1 = gen_new_label(); int l2 = gen_new_label(); tcg_gen_brcondi_tl(TCG_COND_EQ, t1, 0, l1); tcg_gen_brcondi_tl(TCG_COND_NE, t0, -1LL << 63, l2); tcg_gen_brcondi_tl(TCG_COND_NE, t1, -1LL, l2); tcg_gen_mov_tl(cpu_LO[0], t0); tcg_gen_movi_tl(cpu_HI[0], 0); tcg_gen_br(l1); gen_set_label(l2); tcg_gen_div_i64(cpu_LO[0], t0, t1); tcg_gen_rem_i64(cpu_HI[0], t0, t1); gen_set_label(l1); } opn = "ddiv"; break; case OPC_DDIVU: { int l1 = gen_new_label(); tcg_gen_brcondi_tl(TCG_COND_EQ, t1, 0, l1); tcg_gen_divu_i64(cpu_LO[0], t0, t1); tcg_gen_remu_i64(cpu_HI[0], t0, t1); gen_set_label(l1); } opn = "ddivu"; break; case OPC_DMULT: gen_helper_dmult(t0, t1); opn = "dmult"; break; case OPC_DMULTU: gen_helper_dmultu(t0, t1); opn = "dmultu"; break; #endif case OPC_MADD: { TCGv_i64 t2 = tcg_temp_new_i64(); TCGv_i64 t3 = tcg_temp_new_i64(); tcg_gen_ext_tl_i64(t2, t0); tcg_gen_ext_tl_i64(t3, t1); tcg_gen_mul_i64(t2, t2, t3); tcg_gen_concat_tl_i64(t3, cpu_LO[0], cpu_HI[0]); tcg_gen_add_i64(t2, t2, t3); tcg_temp_free_i64(t3); tcg_gen_trunc_i64_tl(t0, t2); tcg_gen_shri_i64(t2, t2, 32); tcg_gen_trunc_i64_tl(t1, t2); tcg_temp_free_i64(t2); tcg_gen_ext32s_tl(cpu_LO[0], t0); tcg_gen_ext32s_tl(cpu_HI[0], t1); } opn = "madd"; break; case OPC_MADDU: { TCGv_i64 t2 = tcg_temp_new_i64(); TCGv_i64 t3 = tcg_temp_new_i64(); tcg_gen_ext32u_tl(t0, t0); tcg_gen_ext32u_tl(t1, t1); tcg_gen_extu_tl_i64(t2, t0); tcg_gen_extu_tl_i64(t3, t1); tcg_gen_mul_i64(t2, t2, t3); tcg_gen_concat_tl_i64(t3, cpu_LO[0], cpu_HI[0]); tcg_gen_add_i64(t2, t2, t3); tcg_temp_free_i64(t3); tcg_gen_trunc_i64_tl(t0, t2); tcg_gen_shri_i64(t2, t2, 32); tcg_gen_trunc_i64_tl(t1, t2); tcg_temp_free_i64(t2); tcg_gen_ext32s_tl(cpu_LO[0], t0); tcg_gen_ext32s_tl(cpu_HI[0], t1); } opn = "maddu"; break; case OPC_MSUB: { TCGv_i64 t2 = tcg_temp_new_i64(); TCGv_i64 t3 = tcg_temp_new_i64(); tcg_gen_ext_tl_i64(t2, t0); tcg_gen_ext_tl_i64(t3, t1); tcg_gen_mul_i64(t2, t2, t3); tcg_gen_concat_tl_i64(t3, cpu_LO[0], cpu_HI[0]); tcg_gen_sub_i64(t2, t3, t2); tcg_temp_free_i64(t3); tcg_gen_trunc_i64_tl(t0, t2); tcg_gen_shri_i64(t2, t2, 32); tcg_gen_trunc_i64_tl(t1, t2); tcg_temp_free_i64(t2); tcg_gen_ext32s_tl(cpu_LO[0], t0); tcg_gen_ext32s_tl(cpu_HI[0], t1); } opn = "msub"; break; case OPC_MSUBU: { TCGv_i64 t2 = tcg_temp_new_i64(); TCGv_i64 t3 = tcg_temp_new_i64(); tcg_gen_ext32u_tl(t0, t0); tcg_gen_ext32u_tl(t1, t1); tcg_gen_extu_tl_i64(t2, t0); tcg_gen_extu_tl_i64(t3, t1); tcg_gen_mul_i64(t2, t2, t3); tcg_gen_concat_tl_i64(t3, cpu_LO[0], cpu_HI[0]); tcg_gen_sub_i64(t2, t3, t2); tcg_temp_free_i64(t3); tcg_gen_trunc_i64_tl(t0, t2); tcg_gen_shri_i64(t2, t2, 32); tcg_gen_trunc_i64_tl(t1, t2); tcg_temp_free_i64(t2); tcg_gen_ext32s_tl(cpu_LO[0], t0); tcg_gen_ext32s_tl(cpu_HI[0], t1); } opn = "msubu"; break; default: MIPS_INVAL(opn); generate_exception(ctx, EXCP_RI); goto out; } (void)opn; /* avoid a compiler warning */ MIPS_DEBUG("%s %s %s", opn, regnames[rs], regnames[rt]); out: tcg_temp_free(t0); tcg_temp_free(t1); } static void gen_mul_vr54xx (DisasContext *ctx, uint32_t opc, int rd, int rs, int rt) { const char *opn = "mul vr54xx"; TCGv t0 = tcg_temp_new(); TCGv t1 = tcg_temp_new(); gen_load_gpr(t0, rs); gen_load_gpr(t1, rt); switch (opc) { case OPC_VR54XX_MULS: gen_helper_muls(t0, t0, t1); opn = "muls"; break; case OPC_VR54XX_MULSU: gen_helper_mulsu(t0, t0, t1); opn = "mulsu"; break; case OPC_VR54XX_MACC: gen_helper_macc(t0, t0, t1); opn = "macc"; break; case OPC_VR54XX_MACCU: gen_helper_maccu(t0, t0, t1); opn = "maccu"; break; case OPC_VR54XX_MSAC: gen_helper_msac(t0, t0, t1); opn = "msac"; break; case OPC_VR54XX_MSACU: gen_helper_msacu(t0, t0, t1); opn = "msacu"; break; case OPC_VR54XX_MULHI: gen_helper_mulhi(t0, t0, t1); opn = "mulhi"; break; case OPC_VR54XX_MULHIU: gen_helper_mulhiu(t0, t0, t1); opn = "mulhiu"; break; case OPC_VR54XX_MULSHI: gen_helper_mulshi(t0, t0, t1); opn = "mulshi"; break; case OPC_VR54XX_MULSHIU: gen_helper_mulshiu(t0, t0, t1); opn = "mulshiu"; break; case OPC_VR54XX_MACCHI: gen_helper_macchi(t0, t0, t1); opn = "macchi"; break; case OPC_VR54XX_MACCHIU: gen_helper_macchiu(t0, t0, t1); opn = "macchiu"; break; case OPC_VR54XX_MSACHI: gen_helper_msachi(t0, t0, t1); opn = "msachi"; break; case OPC_VR54XX_MSACHIU: gen_helper_msachiu(t0, t0, t1); opn = "msachiu"; break; default: MIPS_INVAL("mul vr54xx"); generate_exception(ctx, EXCP_RI); goto out; } gen_store_gpr(t0, rd); (void)opn; /* avoid a compiler warning */ MIPS_DEBUG("%s %s, %s, %s", opn, regnames[rd], regnames[rs], regnames[rt]); out: tcg_temp_free(t0); tcg_temp_free(t1); } static void gen_cl (DisasContext *ctx, uint32_t opc, int rd, int rs) { const char *opn = "CLx"; TCGv t0; if (rd == 0) { /* Treat as NOP. */ MIPS_DEBUG("NOP"); return; } t0 = tcg_temp_new(); gen_load_gpr(t0, rs); switch (opc) { case OPC_CLO: gen_helper_clo(cpu_gpr[rd], t0); opn = "clo"; break; case OPC_CLZ: gen_helper_clz(cpu_gpr[rd], t0); opn = "clz"; break; #if defined(TARGET_MIPS64) case OPC_DCLO: gen_helper_dclo(cpu_gpr[rd], t0); opn = "dclo"; break; case OPC_DCLZ: gen_helper_dclz(cpu_gpr[rd], t0); opn = "dclz"; break; #endif } (void)opn; /* avoid a compiler warning */ MIPS_DEBUG("%s %s, %s", opn, regnames[rd], regnames[rs]); tcg_temp_free(t0); } /* Godson integer instructions */ static void gen_loongson_integer (DisasContext *ctx, uint32_t opc, int rd, int rs, int rt) { const char *opn = "loongson"; TCGv t0, t1; if (rd == 0) { /* Treat as NOP. */ MIPS_DEBUG("NOP"); return; } switch (opc) { case OPC_MULT_G_2E: case OPC_MULT_G_2F: case OPC_MULTU_G_2E: case OPC_MULTU_G_2F: #if defined(TARGET_MIPS64) case OPC_DMULT_G_2E: case OPC_DMULT_G_2F: case OPC_DMULTU_G_2E: case OPC_DMULTU_G_2F: #endif t0 = tcg_temp_new(); t1 = tcg_temp_new(); break; default: t0 = tcg_temp_local_new(); t1 = tcg_temp_local_new(); break; } gen_load_gpr(t0, rs); gen_load_gpr(t1, rt); switch (opc) { case OPC_MULT_G_2E: case OPC_MULT_G_2F: tcg_gen_mul_tl(cpu_gpr[rd], t0, t1); tcg_gen_ext32s_tl(cpu_gpr[rd], cpu_gpr[rd]); opn = "mult.g"; break; case OPC_MULTU_G_2E: case OPC_MULTU_G_2F: tcg_gen_ext32u_tl(t0, t0); tcg_gen_ext32u_tl(t1, t1); tcg_gen_mul_tl(cpu_gpr[rd], t0, t1); tcg_gen_ext32s_tl(cpu_gpr[rd], cpu_gpr[rd]); opn = "multu.g"; break; case OPC_DIV_G_2E: case OPC_DIV_G_2F: { int l1 = gen_new_label(); int l2 = gen_new_label(); int l3 = gen_new_label(); tcg_gen_ext32s_tl(t0, t0); tcg_gen_ext32s_tl(t1, t1); tcg_gen_brcondi_tl(TCG_COND_NE, t1, 0, l1); tcg_gen_movi_tl(cpu_gpr[rd], 0); tcg_gen_br(l3); gen_set_label(l1); tcg_gen_brcondi_tl(TCG_COND_NE, t0, INT_MIN, l2); tcg_gen_brcondi_tl(TCG_COND_NE, t1, -1, l2); tcg_gen_mov_tl(cpu_gpr[rd], t0); tcg_gen_br(l3); gen_set_label(l2); tcg_gen_div_tl(cpu_gpr[rd], t0, t1); tcg_gen_ext32s_tl(cpu_gpr[rd], cpu_gpr[rd]); gen_set_label(l3); } opn = "div.g"; break; case OPC_DIVU_G_2E: case OPC_DIVU_G_2F: { int l1 = gen_new_label(); int l2 = gen_new_label(); tcg_gen_ext32u_tl(t0, t0); tcg_gen_ext32u_tl(t1, t1); tcg_gen_brcondi_tl(TCG_COND_NE, t1, 0, l1); tcg_gen_movi_tl(cpu_gpr[rd], 0); tcg_gen_br(l2); gen_set_label(l1); tcg_gen_divu_tl(cpu_gpr[rd], t0, t1); tcg_gen_ext32s_tl(cpu_gpr[rd], cpu_gpr[rd]); gen_set_label(l2); } opn = "divu.g"; break; case OPC_MOD_G_2E: case OPC_MOD_G_2F: { int l1 = gen_new_label(); int l2 = gen_new_label(); int l3 = gen_new_label(); tcg_gen_ext32u_tl(t0, t0); tcg_gen_ext32u_tl(t1, t1); tcg_gen_brcondi_tl(TCG_COND_EQ, t1, 0, l1); tcg_gen_brcondi_tl(TCG_COND_NE, t0, INT_MIN, l2); tcg_gen_brcondi_tl(TCG_COND_NE, t1, -1, l2); gen_set_label(l1); tcg_gen_movi_tl(cpu_gpr[rd], 0); tcg_gen_br(l3); gen_set_label(l2); tcg_gen_rem_tl(cpu_gpr[rd], t0, t1); tcg_gen_ext32s_tl(cpu_gpr[rd], cpu_gpr[rd]); gen_set_label(l3); } opn = "mod.g"; break; case OPC_MODU_G_2E: case OPC_MODU_G_2F: { int l1 = gen_new_label(); int l2 = gen_new_label(); tcg_gen_ext32u_tl(t0, t0); tcg_gen_ext32u_tl(t1, t1); tcg_gen_brcondi_tl(TCG_COND_NE, t1, 0, l1); tcg_gen_movi_tl(cpu_gpr[rd], 0); tcg_gen_br(l2); gen_set_label(l1); tcg_gen_remu_tl(cpu_gpr[rd], t0, t1); tcg_gen_ext32s_tl(cpu_gpr[rd], cpu_gpr[rd]); gen_set_label(l2); } opn = "modu.g"; break; #if defined(TARGET_MIPS64) case OPC_DMULT_G_2E: case OPC_DMULT_G_2F: tcg_gen_mul_tl(cpu_gpr[rd], t0, t1); opn = "dmult.g"; break; case OPC_DMULTU_G_2E: case OPC_DMULTU_G_2F: tcg_gen_mul_tl(cpu_gpr[rd], t0, t1); opn = "dmultu.g"; break; case OPC_DDIV_G_2E: case OPC_DDIV_G_2F: { int l1 = gen_new_label(); int l2 = gen_new_label(); int l3 = gen_new_label(); tcg_gen_brcondi_tl(TCG_COND_NE, t1, 0, l1); tcg_gen_movi_tl(cpu_gpr[rd], 0); tcg_gen_br(l3); gen_set_label(l1); tcg_gen_brcondi_tl(TCG_COND_NE, t0, -1LL << 63, l2); tcg_gen_brcondi_tl(TCG_COND_NE, t1, -1LL, l2); tcg_gen_mov_tl(cpu_gpr[rd], t0); tcg_gen_br(l3); gen_set_label(l2); tcg_gen_div_tl(cpu_gpr[rd], t0, t1); gen_set_label(l3); } opn = "ddiv.g"; break; case OPC_DDIVU_G_2E: case OPC_DDIVU_G_2F: { int l1 = gen_new_label(); int l2 = gen_new_label(); tcg_gen_brcondi_tl(TCG_COND_NE, t1, 0, l1); tcg_gen_movi_tl(cpu_gpr[rd], 0); tcg_gen_br(l2); gen_set_label(l1); tcg_gen_divu_tl(cpu_gpr[rd], t0, t1); gen_set_label(l2); } opn = "ddivu.g"; break; case OPC_DMOD_G_2E: case OPC_DMOD_G_2F: { int l1 = gen_new_label(); int l2 = gen_new_label(); int l3 = gen_new_label(); tcg_gen_brcondi_tl(TCG_COND_EQ, t1, 0, l1); tcg_gen_brcondi_tl(TCG_COND_NE, t0, -1LL << 63, l2); tcg_gen_brcondi_tl(TCG_COND_NE, t1, -1LL, l2); gen_set_label(l1); tcg_gen_movi_tl(cpu_gpr[rd], 0); tcg_gen_br(l3); gen_set_label(l2); tcg_gen_rem_tl(cpu_gpr[rd], t0, t1); gen_set_label(l3); } opn = "dmod.g"; break; case OPC_DMODU_G_2E: case OPC_DMODU_G_2F: { int l1 = gen_new_label(); int l2 = gen_new_label(); tcg_gen_brcondi_tl(TCG_COND_NE, t1, 0, l1); tcg_gen_movi_tl(cpu_gpr[rd], 0); tcg_gen_br(l2); gen_set_label(l1); tcg_gen_remu_tl(cpu_gpr[rd], t0, t1); gen_set_label(l2); } opn = "dmodu.g"; break; #endif } (void)opn; /* avoid a compiler warning */ MIPS_DEBUG("%s %s, %s", opn, regnames[rd], regnames[rs]); tcg_temp_free(t0); tcg_temp_free(t1); } /* Traps */ static void gen_trap (DisasContext *ctx, uint32_t opc, int rs, int rt, int16_t imm) { int cond; TCGv t0 = tcg_temp_new(); TCGv t1 = tcg_temp_new(); cond = 0; /* Load needed operands */ switch (opc) { case OPC_TEQ: case OPC_TGE: case OPC_TGEU: case OPC_TLT: case OPC_TLTU: case OPC_TNE: /* Compare two registers */ if (rs != rt) { gen_load_gpr(t0, rs); gen_load_gpr(t1, rt); cond = 1; } break; case OPC_TEQI: case OPC_TGEI: case OPC_TGEIU: case OPC_TLTI: case OPC_TLTIU: case OPC_TNEI: /* Compare register to immediate */ if (rs != 0 || imm != 0) { gen_load_gpr(t0, rs); tcg_gen_movi_tl(t1, (int32_t)imm); cond = 1; } break; } if (cond == 0) { switch (opc) { case OPC_TEQ: /* rs == rs */ case OPC_TEQI: /* r0 == 0 */ case OPC_TGE: /* rs >= rs */ case OPC_TGEI: /* r0 >= 0 */ case OPC_TGEU: /* rs >= rs unsigned */ case OPC_TGEIU: /* r0 >= 0 unsigned */ /* Always trap */ generate_exception(ctx, EXCP_TRAP); break; case OPC_TLT: /* rs < rs */ case OPC_TLTI: /* r0 < 0 */ case OPC_TLTU: /* rs < rs unsigned */ case OPC_TLTIU: /* r0 < 0 unsigned */ case OPC_TNE: /* rs != rs */ case OPC_TNEI: /* r0 != 0 */ /* Never trap: treat as NOP. */ break; } } else { int l1 = gen_new_label(); switch (opc) { case OPC_TEQ: case OPC_TEQI: tcg_gen_brcond_tl(TCG_COND_NE, t0, t1, l1); break; case OPC_TGE: case OPC_TGEI: tcg_gen_brcond_tl(TCG_COND_LT, t0, t1, l1); break; case OPC_TGEU: case OPC_TGEIU: tcg_gen_brcond_tl(TCG_COND_LTU, t0, t1, l1); break; case OPC_TLT: case OPC_TLTI: tcg_gen_brcond_tl(TCG_COND_GE, t0, t1, l1); break; case OPC_TLTU: case OPC_TLTIU: tcg_gen_brcond_tl(TCG_COND_GEU, t0, t1, l1); break; case OPC_TNE: case OPC_TNEI: tcg_gen_brcond_tl(TCG_COND_EQ, t0, t1, l1); break; } generate_exception(ctx, EXCP_TRAP); gen_set_label(l1); } tcg_temp_free(t0); tcg_temp_free(t1); } static inline void gen_goto_tb(DisasContext *ctx, int n, target_ulong dest) { TranslationBlock *tb; tb = ctx->tb; if ((tb->pc & TARGET_PAGE_MASK) == (dest & TARGET_PAGE_MASK) && likely(!ctx->singlestep_enabled)) { tcg_gen_goto_tb(n); gen_save_pc(dest); tcg_gen_exit_tb((tcg_target_long)tb + n); } else { gen_save_pc(dest); if (ctx->singlestep_enabled) { save_cpu_state(ctx, 0); gen_helper_0i(raise_exception, EXCP_DEBUG); } tcg_gen_exit_tb(0); } } /* Branches (before delay slot) */ static void gen_compute_branch (DisasContext *ctx, uint32_t opc, int insn_bytes, int rs, int rt, int32_t offset) { target_ulong btgt = -1; int blink = 0; int bcond_compute = 0; TCGv t0 = tcg_temp_new(); TCGv t1 = tcg_temp_new(); if (ctx->hflags & MIPS_HFLAG_BMASK) { #ifdef MIPS_DEBUG_DISAS LOG_DISAS("Branch in delay slot at PC 0x" TARGET_FMT_lx "\n", ctx->pc); #endif generate_exception(ctx, EXCP_RI); goto out; } /* Load needed operands */ switch (opc) { case OPC_BEQ: case OPC_BEQL: case OPC_BNE: case OPC_BNEL: /* Compare two registers */ if (rs != rt) { gen_load_gpr(t0, rs); gen_load_gpr(t1, rt); bcond_compute = 1; } btgt = ctx->pc + insn_bytes + offset; break; case OPC_BGEZ: case OPC_BGEZAL: case OPC_BGEZALS: case OPC_BGEZALL: case OPC_BGEZL: case OPC_BGTZ: case OPC_BGTZL: case OPC_BLEZ: case OPC_BLEZL: case OPC_BLTZ: case OPC_BLTZAL: case OPC_BLTZALS: case OPC_BLTZALL: case OPC_BLTZL: /* Compare to zero */ if (rs != 0) { gen_load_gpr(t0, rs); bcond_compute = 1; } btgt = ctx->pc + insn_bytes + offset; break; case OPC_J: case OPC_JAL: case OPC_JALX: case OPC_JALS: case OPC_JALXS: /* Jump to immediate */ btgt = ((ctx->pc + insn_bytes) & (int32_t)0xF0000000) | (uint32_t)offset; break; case OPC_JR: case OPC_JALR: case OPC_JALRC: case OPC_JALRS: /* Jump to register */ if (offset != 0 && offset != 16) { /* Hint = 0 is JR/JALR, hint 16 is JR.HB/JALR.HB, the others are reserved. */ MIPS_INVAL("jump hint"); generate_exception(ctx, EXCP_RI); goto out; } gen_load_gpr(btarget, rs); break; default: MIPS_INVAL("branch/jump"); generate_exception(ctx, EXCP_RI); goto out; } if (bcond_compute == 0) { /* No condition to be computed */ switch (opc) { case OPC_BEQ: /* rx == rx */ case OPC_BEQL: /* rx == rx likely */ case OPC_BGEZ: /* 0 >= 0 */ case OPC_BGEZL: /* 0 >= 0 likely */ case OPC_BLEZ: /* 0 <= 0 */ case OPC_BLEZL: /* 0 <= 0 likely */ /* Always take */ ctx->hflags |= MIPS_HFLAG_B; MIPS_DEBUG("balways"); break; case OPC_BGEZALS: case OPC_BGEZAL: /* 0 >= 0 */ case OPC_BGEZALL: /* 0 >= 0 likely */ ctx->hflags |= (opc == OPC_BGEZALS ? MIPS_HFLAG_BDS16 : MIPS_HFLAG_BDS32); /* Always take and link */ blink = 31; ctx->hflags |= MIPS_HFLAG_B; MIPS_DEBUG("balways and link"); break; case OPC_BNE: /* rx != rx */ case OPC_BGTZ: /* 0 > 0 */ case OPC_BLTZ: /* 0 < 0 */ /* Treat as NOP. */ MIPS_DEBUG("bnever (NOP)"); goto out; case OPC_BLTZALS: case OPC_BLTZAL: /* 0 < 0 */ ctx->hflags |= (opc == OPC_BLTZALS ? MIPS_HFLAG_BDS16 : MIPS_HFLAG_BDS32); /* Handle as an unconditional branch to get correct delay slot checking. */ blink = 31; btgt = ctx->pc + (opc == OPC_BLTZALS ? 6 : 8); ctx->hflags |= MIPS_HFLAG_B; MIPS_DEBUG("bnever and link"); break; case OPC_BLTZALL: /* 0 < 0 likely */ tcg_gen_movi_tl(cpu_gpr[31], ctx->pc + 8); /* Skip the instruction in the delay slot */ MIPS_DEBUG("bnever, link and skip"); ctx->pc += 4; goto out; case OPC_BNEL: /* rx != rx likely */ case OPC_BGTZL: /* 0 > 0 likely */ case OPC_BLTZL: /* 0 < 0 likely */ /* Skip the instruction in the delay slot */ MIPS_DEBUG("bnever and skip"); ctx->pc += 4; goto out; case OPC_J: ctx->hflags |= MIPS_HFLAG_B; MIPS_DEBUG("j " TARGET_FMT_lx, btgt); break; case OPC_JALXS: case OPC_JALX: ctx->hflags |= MIPS_HFLAG_BX; /* Fallthrough */ case OPC_JALS: case OPC_JAL: blink = 31; ctx->hflags |= MIPS_HFLAG_B; ctx->hflags |= ((opc == OPC_JALS || opc == OPC_JALXS) ? MIPS_HFLAG_BDS16 : MIPS_HFLAG_BDS32); MIPS_DEBUG("jal " TARGET_FMT_lx, btgt); break; case OPC_JR: ctx->hflags |= MIPS_HFLAG_BR; if (insn_bytes == 4) ctx->hflags |= MIPS_HFLAG_BDS32; MIPS_DEBUG("jr %s", regnames[rs]); break; case OPC_JALRS: case OPC_JALR: case OPC_JALRC: blink = rt; ctx->hflags |= MIPS_HFLAG_BR; ctx->hflags |= (opc == OPC_JALRS ? MIPS_HFLAG_BDS16 : MIPS_HFLAG_BDS32); MIPS_DEBUG("jalr %s, %s", regnames[rt], regnames[rs]); break; default: MIPS_INVAL("branch/jump"); generate_exception(ctx, EXCP_RI); goto out; } } else { switch (opc) { case OPC_BEQ: tcg_gen_setcond_tl(TCG_COND_EQ, bcond, t0, t1); MIPS_DEBUG("beq %s, %s, " TARGET_FMT_lx, regnames[rs], regnames[rt], btgt); goto not_likely; case OPC_BEQL: tcg_gen_setcond_tl(TCG_COND_EQ, bcond, t0, t1); MIPS_DEBUG("beql %s, %s, " TARGET_FMT_lx, regnames[rs], regnames[rt], btgt); goto likely; case OPC_BNE: tcg_gen_setcond_tl(TCG_COND_NE, bcond, t0, t1); MIPS_DEBUG("bne %s, %s, " TARGET_FMT_lx, regnames[rs], regnames[rt], btgt); goto not_likely; case OPC_BNEL: tcg_gen_setcond_tl(TCG_COND_NE, bcond, t0, t1); MIPS_DEBUG("bnel %s, %s, " TARGET_FMT_lx, regnames[rs], regnames[rt], btgt); goto likely; case OPC_BGEZ: tcg_gen_setcondi_tl(TCG_COND_GE, bcond, t0, 0); MIPS_DEBUG("bgez %s, " TARGET_FMT_lx, regnames[rs], btgt); goto not_likely; case OPC_BGEZL: tcg_gen_setcondi_tl(TCG_COND_GE, bcond, t0, 0); MIPS_DEBUG("bgezl %s, " TARGET_FMT_lx, regnames[rs], btgt); goto likely; case OPC_BGEZALS: case OPC_BGEZAL: ctx->hflags |= (opc == OPC_BGEZALS ? MIPS_HFLAG_BDS16 : MIPS_HFLAG_BDS32); tcg_gen_setcondi_tl(TCG_COND_GE, bcond, t0, 0); MIPS_DEBUG("bgezal %s, " TARGET_FMT_lx, regnames[rs], btgt); blink = 31; goto not_likely; case OPC_BGEZALL: tcg_gen_setcondi_tl(TCG_COND_GE, bcond, t0, 0); blink = 31; MIPS_DEBUG("bgezall %s, " TARGET_FMT_lx, regnames[rs], btgt); goto likely; case OPC_BGTZ: tcg_gen_setcondi_tl(TCG_COND_GT, bcond, t0, 0); MIPS_DEBUG("bgtz %s, " TARGET_FMT_lx, regnames[rs], btgt); goto not_likely; case OPC_BGTZL: tcg_gen_setcondi_tl(TCG_COND_GT, bcond, t0, 0); MIPS_DEBUG("bgtzl %s, " TARGET_FMT_lx, regnames[rs], btgt); goto likely; case OPC_BLEZ: tcg_gen_setcondi_tl(TCG_COND_LE, bcond, t0, 0); MIPS_DEBUG("blez %s, " TARGET_FMT_lx, regnames[rs], btgt); goto not_likely; case OPC_BLEZL: tcg_gen_setcondi_tl(TCG_COND_LE, bcond, t0, 0); MIPS_DEBUG("blezl %s, " TARGET_FMT_lx, regnames[rs], btgt); goto likely; case OPC_BLTZ: tcg_gen_setcondi_tl(TCG_COND_LT, bcond, t0, 0); MIPS_DEBUG("bltz %s, " TARGET_FMT_lx, regnames[rs], btgt); goto not_likely; case OPC_BLTZL: tcg_gen_setcondi_tl(TCG_COND_LT, bcond, t0, 0); MIPS_DEBUG("bltzl %s, " TARGET_FMT_lx, regnames[rs], btgt); goto likely; case OPC_BLTZALS: case OPC_BLTZAL: ctx->hflags |= (opc == OPC_BLTZALS ? MIPS_HFLAG_BDS16 : MIPS_HFLAG_BDS32); tcg_gen_setcondi_tl(TCG_COND_LT, bcond, t0, 0); blink = 31; MIPS_DEBUG("bltzal %s, " TARGET_FMT_lx, regnames[rs], btgt); not_likely: ctx->hflags |= MIPS_HFLAG_BC; break; case OPC_BLTZALL: tcg_gen_setcondi_tl(TCG_COND_LT, bcond, t0, 0); blink = 31; MIPS_DEBUG("bltzall %s, " TARGET_FMT_lx, regnames[rs], btgt); likely: ctx->hflags |= MIPS_HFLAG_BL; break; default: MIPS_INVAL("conditional branch/jump"); generate_exception(ctx, EXCP_RI); goto out; } } MIPS_DEBUG("enter ds: link %d cond %02x target " TARGET_FMT_lx, blink, ctx->hflags, btgt); ctx->btarget = btgt; if (blink > 0) { int post_delay = insn_bytes; int lowbit = !!(ctx->hflags & MIPS_HFLAG_M16); if (opc != OPC_JALRC) post_delay += ((ctx->hflags & MIPS_HFLAG_BDS16) ? 2 : 4); tcg_gen_movi_tl(cpu_gpr[blink], ctx->pc + post_delay + lowbit); } out: if (insn_bytes == 2) ctx->hflags |= MIPS_HFLAG_B16; tcg_temp_free(t0); tcg_temp_free(t1); } /* special3 bitfield operations */ static void gen_bitops (DisasContext *ctx, uint32_t opc, int rt, int rs, int lsb, int msb) { TCGv t0 = tcg_temp_new(); TCGv t1 = tcg_temp_new(); target_ulong mask; gen_load_gpr(t1, rs); switch (opc) { case OPC_EXT: if (lsb + msb > 31) goto fail; tcg_gen_shri_tl(t0, t1, lsb); if (msb != 31) { tcg_gen_andi_tl(t0, t0, (1 << (msb + 1)) - 1); } else { tcg_gen_ext32s_tl(t0, t0); } break; #if defined(TARGET_MIPS64) case OPC_DEXTM: tcg_gen_shri_tl(t0, t1, lsb); if (msb != 31) { tcg_gen_andi_tl(t0, t0, (1ULL << (msb + 1 + 32)) - 1); } break; case OPC_DEXTU: tcg_gen_shri_tl(t0, t1, lsb + 32); tcg_gen_andi_tl(t0, t0, (1ULL << (msb + 1)) - 1); break; case OPC_DEXT: tcg_gen_shri_tl(t0, t1, lsb); tcg_gen_andi_tl(t0, t0, (1ULL << (msb + 1)) - 1); break; #endif case OPC_INS: if (lsb > msb) goto fail; mask = ((msb - lsb + 1 < 32) ? ((1 << (msb - lsb + 1)) - 1) : ~0) << lsb; gen_load_gpr(t0, rt); tcg_gen_andi_tl(t0, t0, ~mask); tcg_gen_shli_tl(t1, t1, lsb); tcg_gen_andi_tl(t1, t1, mask); tcg_gen_or_tl(t0, t0, t1); tcg_gen_ext32s_tl(t0, t0); break; #if defined(TARGET_MIPS64) case OPC_DINSM: if (lsb > msb) goto fail; mask = ((msb - lsb + 1 + 32 < 64) ? ((1ULL << (msb - lsb + 1 + 32)) - 1) : ~0ULL) << lsb; gen_load_gpr(t0, rt); tcg_gen_andi_tl(t0, t0, ~mask); tcg_gen_shli_tl(t1, t1, lsb); tcg_gen_andi_tl(t1, t1, mask); tcg_gen_or_tl(t0, t0, t1); break; case OPC_DINSU: if (lsb > msb) goto fail; mask = ((1ULL << (msb - lsb + 1)) - 1) << (lsb + 32); gen_load_gpr(t0, rt); tcg_gen_andi_tl(t0, t0, ~mask); tcg_gen_shli_tl(t1, t1, lsb + 32); tcg_gen_andi_tl(t1, t1, mask); tcg_gen_or_tl(t0, t0, t1); break; case OPC_DINS: if (lsb > msb) goto fail; gen_load_gpr(t0, rt); mask = ((1ULL << (msb - lsb + 1)) - 1) << lsb; gen_load_gpr(t0, rt); tcg_gen_andi_tl(t0, t0, ~mask); tcg_gen_shli_tl(t1, t1, lsb); tcg_gen_andi_tl(t1, t1, mask); tcg_gen_or_tl(t0, t0, t1); break; #endif default: fail: MIPS_INVAL("bitops"); generate_exception(ctx, EXCP_RI); tcg_temp_free(t0); tcg_temp_free(t1); return; } gen_store_gpr(t0, rt); tcg_temp_free(t0); tcg_temp_free(t1); } static void gen_bshfl (DisasContext *ctx, uint32_t op2, int rt, int rd) { TCGv t0; if (rd == 0) { /* If no destination, treat it as a NOP. */ MIPS_DEBUG("NOP"); return; } t0 = tcg_temp_new(); gen_load_gpr(t0, rt); switch (op2) { case OPC_WSBH: { TCGv t1 = tcg_temp_new(); tcg_gen_shri_tl(t1, t0, 8); tcg_gen_andi_tl(t1, t1, 0x00FF00FF); tcg_gen_shli_tl(t0, t0, 8); tcg_gen_andi_tl(t0, t0, ~0x00FF00FF); tcg_gen_or_tl(t0, t0, t1); tcg_temp_free(t1); tcg_gen_ext32s_tl(cpu_gpr[rd], t0); } break; case OPC_SEB: tcg_gen_ext8s_tl(cpu_gpr[rd], t0); break; case OPC_SEH: tcg_gen_ext16s_tl(cpu_gpr[rd], t0); break; #if defined(TARGET_MIPS64) case OPC_DSBH: { TCGv t1 = tcg_temp_new(); tcg_gen_shri_tl(t1, t0, 8); tcg_gen_andi_tl(t1, t1, 0x00FF00FF00FF00FFULL); tcg_gen_shli_tl(t0, t0, 8); tcg_gen_andi_tl(t0, t0, ~0x00FF00FF00FF00FFULL); tcg_gen_or_tl(cpu_gpr[rd], t0, t1); tcg_temp_free(t1); } break; case OPC_DSHD: { TCGv t1 = tcg_temp_new(); tcg_gen_shri_tl(t1, t0, 16); tcg_gen_andi_tl(t1, t1, 0x0000FFFF0000FFFFULL); tcg_gen_shli_tl(t0, t0, 16); tcg_gen_andi_tl(t0, t0, ~0x0000FFFF0000FFFFULL); tcg_gen_or_tl(t0, t0, t1); tcg_gen_shri_tl(t1, t0, 32); tcg_gen_shli_tl(t0, t0, 32); tcg_gen_or_tl(cpu_gpr[rd], t0, t1); tcg_temp_free(t1); } break; #endif default: MIPS_INVAL("bsfhl"); generate_exception(ctx, EXCP_RI); tcg_temp_free(t0); return; } tcg_temp_free(t0); } #ifndef CONFIG_USER_ONLY /* CP0 (MMU and control) */ static inline void gen_mfc0_load32 (TCGv arg, target_ulong off) { TCGv_i32 t0 = tcg_temp_new_i32(); tcg_gen_ld_i32(t0, cpu_env, off); tcg_gen_ext_i32_tl(arg, t0); tcg_temp_free_i32(t0); } static inline void gen_mfc0_load64 (TCGv arg, target_ulong off) { tcg_gen_ld_tl(arg, cpu_env, off); tcg_gen_ext32s_tl(arg, arg); } static inline void gen_mtc0_store32 (TCGv arg, target_ulong off) { TCGv_i32 t0 = tcg_temp_new_i32(); tcg_gen_trunc_tl_i32(t0, arg); tcg_gen_st_i32(t0, cpu_env, off); tcg_temp_free_i32(t0); } static inline void gen_mtc0_store64 (TCGv arg, target_ulong off) { tcg_gen_ext32s_tl(arg, arg); tcg_gen_st_tl(arg, cpu_env, off); } static void gen_mfc0 (CPUState *env, DisasContext *ctx, TCGv arg, int reg, int sel) { const char *rn = "invalid"; if (sel != 0) check_insn(env, ctx, ISA_MIPS32); switch (reg) { case 0: switch (sel) { case 0: gen_mfc0_load32(arg, offsetof(CPUState, CP0_Index)); rn = "Index"; break; case 1: check_insn(env, ctx, ASE_MT); gen_helper_mfc0_mvpcontrol(arg); rn = "MVPControl"; break; case 2: check_insn(env, ctx, ASE_MT); gen_helper_mfc0_mvpconf0(arg); rn = "MVPConf0"; break; case 3: check_insn(env, ctx, ASE_MT); gen_helper_mfc0_mvpconf1(arg); rn = "MVPConf1"; break; default: goto die; } break; case 1: switch (sel) { case 0: gen_helper_mfc0_random(arg); rn = "Random"; break; case 1: check_insn(env, ctx, ASE_MT); gen_mfc0_load32(arg, offsetof(CPUState, CP0_VPEControl)); rn = "VPEControl"; break; case 2: check_insn(env, ctx, ASE_MT); gen_mfc0_load32(arg, offsetof(CPUState, CP0_VPEConf0)); rn = "VPEConf0"; break; case 3: check_insn(env, ctx, ASE_MT); gen_mfc0_load32(arg, offsetof(CPUState, CP0_VPEConf1)); rn = "VPEConf1"; break; case 4: check_insn(env, ctx, ASE_MT); gen_mfc0_load64(arg, offsetof(CPUState, CP0_YQMask)); rn = "YQMask"; break; case 5: check_insn(env, ctx, ASE_MT); gen_mfc0_load64(arg, offsetof(CPUState, CP0_VPESchedule)); rn = "VPESchedule"; break; case 6: check_insn(env, ctx, ASE_MT); gen_mfc0_load64(arg, offsetof(CPUState, CP0_VPEScheFBack)); rn = "VPEScheFBack"; break; case 7: check_insn(env, ctx, ASE_MT); gen_mfc0_load32(arg, offsetof(CPUState, CP0_VPEOpt)); rn = "VPEOpt"; break; default: goto die; } break; case 2: switch (sel) { case 0: tcg_gen_ld_tl(arg, cpu_env, offsetof(CPUState, CP0_EntryLo0)); tcg_gen_ext32s_tl(arg, arg); rn = "EntryLo0"; break; case 1: check_insn(env, ctx, ASE_MT); gen_helper_mfc0_tcstatus(arg); rn = "TCStatus"; break; case 2: check_insn(env, ctx, ASE_MT); gen_helper_mfc0_tcbind(arg); rn = "TCBind"; break; case 3: check_insn(env, ctx, ASE_MT); gen_helper_mfc0_tcrestart(arg); rn = "TCRestart"; break; case 4: check_insn(env, ctx, ASE_MT); gen_helper_mfc0_tchalt(arg); rn = "TCHalt"; break; case 5: check_insn(env, ctx, ASE_MT); gen_helper_mfc0_tccontext(arg); rn = "TCContext"; break; case 6: check_insn(env, ctx, ASE_MT); gen_helper_mfc0_tcschedule(arg); rn = "TCSchedule"; break; case 7: check_insn(env, ctx, ASE_MT); gen_helper_mfc0_tcschefback(arg); rn = "TCScheFBack"; break; default: goto die; } break; case 3: switch (sel) { case 0: tcg_gen_ld_tl(arg, cpu_env, offsetof(CPUState, CP0_EntryLo1)); tcg_gen_ext32s_tl(arg, arg); rn = "EntryLo1"; break; default: goto die; } break; case 4: switch (sel) { case 0: tcg_gen_ld_tl(arg, cpu_env, offsetof(CPUState, CP0_Context)); tcg_gen_ext32s_tl(arg, arg); rn = "Context"; break; case 1: // gen_helper_mfc0_contextconfig(arg); /* SmartMIPS ASE */ rn = "ContextConfig"; // break; default: goto die; } break; case 5: switch (sel) { case 0: gen_mfc0_load32(arg, offsetof(CPUState, CP0_PageMask)); rn = "PageMask"; break; case 1: check_insn(env, ctx, ISA_MIPS32R2); gen_mfc0_load32(arg, offsetof(CPUState, CP0_PageGrain)); rn = "PageGrain"; break; default: goto die; } break; case 6: switch (sel) { case 0: gen_mfc0_load32(arg, offsetof(CPUState, CP0_Wired)); rn = "Wired"; break; case 1: check_insn(env, ctx, ISA_MIPS32R2); gen_mfc0_load32(arg, offsetof(CPUState, CP0_SRSConf0)); rn = "SRSConf0"; break; case 2: check_insn(env, ctx, ISA_MIPS32R2); gen_mfc0_load32(arg, offsetof(CPUState, CP0_SRSConf1)); rn = "SRSConf1"; break; case 3: check_insn(env, ctx, ISA_MIPS32R2); gen_mfc0_load32(arg, offsetof(CPUState, CP0_SRSConf2)); rn = "SRSConf2"; break; case 4: check_insn(env, ctx, ISA_MIPS32R2); gen_mfc0_load32(arg, offsetof(CPUState, CP0_SRSConf3)); rn = "SRSConf3"; break; case 5: check_insn(env, ctx, ISA_MIPS32R2); gen_mfc0_load32(arg, offsetof(CPUState, CP0_SRSConf4)); rn = "SRSConf4"; break; default: goto die; } break; case 7: switch (sel) { case 0: check_insn(env, ctx, ISA_MIPS32R2); gen_mfc0_load32(arg, offsetof(CPUState, CP0_HWREna)); rn = "HWREna"; break; default: goto die; } break; case 8: switch (sel) { case 0: tcg_gen_ld_tl(arg, cpu_env, offsetof(CPUState, CP0_BadVAddr)); tcg_gen_ext32s_tl(arg, arg); rn = "BadVAddr"; break; default: goto die; } break; case 9: switch (sel) { case 0: /* Mark as an IO operation because we read the time. */ if (use_icount) gen_io_start(); gen_helper_mfc0_count(arg); if (use_icount) { gen_io_end(); } /* Break the TB to be able to take timer interrupts immediately after reading count. */ ctx->bstate = BS_STOP; rn = "Count"; break; /* 6,7 are implementation dependent */ default: goto die; } break; case 10: switch (sel) { case 0: tcg_gen_ld_tl(arg, cpu_env, offsetof(CPUState, CP0_EntryHi)); tcg_gen_ext32s_tl(arg, arg); rn = "EntryHi"; break; default: goto die; } break; case 11: switch (sel) { case 0: gen_mfc0_load32(arg, offsetof(CPUState, CP0_Compare)); rn = "Compare"; break; /* 6,7 are implementation dependent */ default: goto die; } break; case 12: switch (sel) { case 0: gen_mfc0_load32(arg, offsetof(CPUState, CP0_Status)); rn = "Status"; break; case 1: check_insn(env, ctx, ISA_MIPS32R2); gen_mfc0_load32(arg, offsetof(CPUState, CP0_IntCtl)); rn = "IntCtl"; break; case 2: check_insn(env, ctx, ISA_MIPS32R2); gen_mfc0_load32(arg, offsetof(CPUState, CP0_SRSCtl)); rn = "SRSCtl"; break; case 3: check_insn(env, ctx, ISA_MIPS32R2); gen_mfc0_load32(arg, offsetof(CPUState, CP0_SRSMap)); rn = "SRSMap"; break; default: goto die; } break; case 13: switch (sel) { case 0: gen_mfc0_load32(arg, offsetof(CPUState, CP0_Cause)); rn = "Cause"; break; default: goto die; } break; case 14: switch (sel) { case 0: tcg_gen_ld_tl(arg, cpu_env, offsetof(CPUState, CP0_EPC)); tcg_gen_ext32s_tl(arg, arg); rn = "EPC"; break; default: goto die; } break; case 15: switch (sel) { case 0: gen_mfc0_load32(arg, offsetof(CPUState, CP0_PRid)); rn = "PRid"; break; case 1: check_insn(env, ctx, ISA_MIPS32R2); gen_mfc0_load32(arg, offsetof(CPUState, CP0_EBase)); rn = "EBase"; break; default: goto die; } break; case 16: switch (sel) { case 0: gen_mfc0_load32(arg, offsetof(CPUState, CP0_Config0)); rn = "Config"; break; case 1: gen_mfc0_load32(arg, offsetof(CPUState, CP0_Config1)); rn = "Config1"; break; case 2: gen_mfc0_load32(arg, offsetof(CPUState, CP0_Config2)); rn = "Config2"; break; case 3: gen_mfc0_load32(arg, offsetof(CPUState, CP0_Config3)); rn = "Config3"; break; /* 4,5 are reserved */ /* 6,7 are implementation dependent */ case 6: gen_mfc0_load32(arg, offsetof(CPUState, CP0_Config6)); rn = "Config6"; break; case 7: gen_mfc0_load32(arg, offsetof(CPUState, CP0_Config7)); rn = "Config7"; break; default: goto die; } break; case 17: switch (sel) { case 0: gen_helper_mfc0_lladdr(arg); rn = "LLAddr"; break; default: goto die; } break; case 18: switch (sel) { case 0 ... 7: gen_helper_1i(mfc0_watchlo, arg, sel); rn = "WatchLo"; break; default: goto die; } break; case 19: switch (sel) { case 0 ...7: gen_helper_1i(mfc0_watchhi, arg, sel); rn = "WatchHi"; break; default: goto die; } break; case 20: switch (sel) { case 0: #if defined(TARGET_MIPS64) check_insn(env, ctx, ISA_MIPS3); tcg_gen_ld_tl(arg, cpu_env, offsetof(CPUState, CP0_XContext)); tcg_gen_ext32s_tl(arg, arg); rn = "XContext"; break; #endif default: goto die; } break; case 21: /* Officially reserved, but sel 0 is used for R1x000 framemask */ switch (sel) { case 0: gen_mfc0_load32(arg, offsetof(CPUState, CP0_Framemask)); rn = "Framemask"; break; default: goto die; } break; case 22: tcg_gen_movi_tl(arg, 0); /* unimplemented */ rn = "'Diagnostic"; /* implementation dependent */ break; case 23: switch (sel) { case 0: gen_helper_mfc0_debug(arg); /* EJTAG support */ rn = "Debug"; break; case 1: // gen_helper_mfc0_tracecontrol(arg); /* PDtrace support */ rn = "TraceControl"; // break; case 2: // gen_helper_mfc0_tracecontrol2(arg); /* PDtrace support */ rn = "TraceControl2"; // break; case 3: // gen_helper_mfc0_usertracedata(arg); /* PDtrace support */ rn = "UserTraceData"; // break; case 4: // gen_helper_mfc0_tracebpc(arg); /* PDtrace support */ rn = "TraceBPC"; // break; default: goto die; } break; case 24: switch (sel) { case 0: /* EJTAG support */ tcg_gen_ld_tl(arg, cpu_env, offsetof(CPUState, CP0_DEPC)); tcg_gen_ext32s_tl(arg, arg); rn = "DEPC"; break; default: goto die; } break; case 25: switch (sel) { case 0: gen_mfc0_load32(arg, offsetof(CPUState, CP0_Performance0)); rn = "Performance0"; break; case 1: // gen_helper_mfc0_performance1(arg); rn = "Performance1"; // break; case 2: // gen_helper_mfc0_performance2(arg); rn = "Performance2"; // break; case 3: // gen_helper_mfc0_performance3(arg); rn = "Performance3"; // break; case 4: // gen_helper_mfc0_performance4(arg); rn = "Performance4"; // break; case 5: // gen_helper_mfc0_performance5(arg); rn = "Performance5"; // break; case 6: // gen_helper_mfc0_performance6(arg); rn = "Performance6"; // break; case 7: // gen_helper_mfc0_performance7(arg); rn = "Performance7"; // break; default: goto die; } break; case 26: tcg_gen_movi_tl(arg, 0); /* unimplemented */ rn = "ECC"; break; case 27: switch (sel) { case 0 ... 3: tcg_gen_movi_tl(arg, 0); /* unimplemented */ rn = "CacheErr"; break; default: goto die; } break; case 28: switch (sel) { case 0: case 2: case 4: case 6: gen_mfc0_load32(arg, offsetof(CPUState, CP0_TagLo)); rn = "TagLo"; break; case 1: case 3: case 5: case 7: gen_mfc0_load32(arg, offsetof(CPUState, CP0_DataLo)); rn = "DataLo"; break; default: goto die; } break; case 29: switch (sel) { case 0: case 2: case 4: case 6: gen_mfc0_load32(arg, offsetof(CPUState, CP0_TagHi)); rn = "TagHi"; break; case 1: case 3: case 5: case 7: gen_mfc0_load32(arg, offsetof(CPUState, CP0_DataHi)); rn = "DataHi"; break; default: goto die; } break; case 30: switch (sel) { case 0: tcg_gen_ld_tl(arg, cpu_env, offsetof(CPUState, CP0_ErrorEPC)); tcg_gen_ext32s_tl(arg, arg); rn = "ErrorEPC"; break; default: goto die; } break; case 31: switch (sel) { case 0: /* EJTAG support */ gen_mfc0_load32(arg, offsetof(CPUState, CP0_DESAVE)); rn = "DESAVE"; break; default: goto die; } break; default: goto die; } (void)rn; /* avoid a compiler warning */ LOG_DISAS("mfc0 %s (reg %d sel %d)\n", rn, reg, sel); return; die: LOG_DISAS("mfc0 %s (reg %d sel %d)\n", rn, reg, sel); generate_exception(ctx, EXCP_RI); } static void gen_mtc0 (CPUState *env, DisasContext *ctx, TCGv arg, int reg, int sel) { const char *rn = "invalid"; if (sel != 0) check_insn(env, ctx, ISA_MIPS32); if (use_icount) gen_io_start(); switch (reg) { case 0: switch (sel) { case 0: gen_helper_mtc0_index(arg); rn = "Index"; break; case 1: check_insn(env, ctx, ASE_MT); gen_helper_mtc0_mvpcontrol(arg); rn = "MVPControl"; break; case 2: check_insn(env, ctx, ASE_MT); /* ignored */ rn = "MVPConf0"; break; case 3: check_insn(env, ctx, ASE_MT); /* ignored */ rn = "MVPConf1"; break; default: goto die; } break; case 1: switch (sel) { case 0: /* ignored */ rn = "Random"; break; case 1: check_insn(env, ctx, ASE_MT); gen_helper_mtc0_vpecontrol(arg); rn = "VPEControl"; break; case 2: check_insn(env, ctx, ASE_MT); gen_helper_mtc0_vpeconf0(arg); rn = "VPEConf0"; break; case 3: check_insn(env, ctx, ASE_MT); gen_helper_mtc0_vpeconf1(arg); rn = "VPEConf1"; break; case 4: check_insn(env, ctx, ASE_MT); gen_helper_mtc0_yqmask(arg); rn = "YQMask"; break; case 5: check_insn(env, ctx, ASE_MT); gen_mtc0_store64(arg, offsetof(CPUState, CP0_VPESchedule)); rn = "VPESchedule"; break; case 6: check_insn(env, ctx, ASE_MT); gen_mtc0_store64(arg, offsetof(CPUState, CP0_VPEScheFBack)); rn = "VPEScheFBack"; break; case 7: check_insn(env, ctx, ASE_MT); gen_helper_mtc0_vpeopt(arg); rn = "VPEOpt"; break; default: goto die; } break; case 2: switch (sel) { case 0: gen_helper_mtc0_entrylo0(arg); rn = "EntryLo0"; break; case 1: check_insn(env, ctx, ASE_MT); gen_helper_mtc0_tcstatus(arg); rn = "TCStatus"; break; case 2: check_insn(env, ctx, ASE_MT); gen_helper_mtc0_tcbind(arg); rn = "TCBind"; break; case 3: check_insn(env, ctx, ASE_MT); gen_helper_mtc0_tcrestart(arg); rn = "TCRestart"; break; case 4: check_insn(env, ctx, ASE_MT); gen_helper_mtc0_tchalt(arg); rn = "TCHalt"; break; case 5: check_insn(env, ctx, ASE_MT); gen_helper_mtc0_tccontext(arg); rn = "TCContext"; break; case 6: check_insn(env, ctx, ASE_MT); gen_helper_mtc0_tcschedule(arg); rn = "TCSchedule"; break; case 7: check_insn(env, ctx, ASE_MT); gen_helper_mtc0_tcschefback(arg); rn = "TCScheFBack"; break; default: goto die; } break; case 3: switch (sel) { case 0: gen_helper_mtc0_entrylo1(arg); rn = "EntryLo1"; break; default: goto die; } break; case 4: switch (sel) { case 0: gen_helper_mtc0_context(arg); rn = "Context"; break; case 1: // gen_helper_mtc0_contextconfig(arg); /* SmartMIPS ASE */ rn = "ContextConfig"; // break; default: goto die; } break; case 5: switch (sel) { case 0: gen_helper_mtc0_pagemask(arg); rn = "PageMask"; break; case 1: check_insn(env, ctx, ISA_MIPS32R2); gen_helper_mtc0_pagegrain(arg); rn = "PageGrain"; break; default: goto die; } break; case 6: switch (sel) { case 0: gen_helper_mtc0_wired(arg); rn = "Wired"; break; case 1: check_insn(env, ctx, ISA_MIPS32R2); gen_helper_mtc0_srsconf0(arg); rn = "SRSConf0"; break; case 2: check_insn(env, ctx, ISA_MIPS32R2); gen_helper_mtc0_srsconf1(arg); rn = "SRSConf1"; break; case 3: check_insn(env, ctx, ISA_MIPS32R2); gen_helper_mtc0_srsconf2(arg); rn = "SRSConf2"; break; case 4: check_insn(env, ctx, ISA_MIPS32R2); gen_helper_mtc0_srsconf3(arg); rn = "SRSConf3"; break; case 5: check_insn(env, ctx, ISA_MIPS32R2); gen_helper_mtc0_srsconf4(arg); rn = "SRSConf4"; break; default: goto die; } break; case 7: switch (sel) { case 0: check_insn(env, ctx, ISA_MIPS32R2); gen_helper_mtc0_hwrena(arg); rn = "HWREna"; break; default: goto die; } break; case 8: /* ignored */ rn = "BadVAddr"; break; case 9: switch (sel) { case 0: gen_helper_mtc0_count(arg); rn = "Count"; break; /* 6,7 are implementation dependent */ default: goto die; } break; case 10: switch (sel) { case 0: gen_helper_mtc0_entryhi(arg); rn = "EntryHi"; break; default: goto die; } break; case 11: switch (sel) { case 0: gen_helper_mtc0_compare(arg); rn = "Compare"; break; /* 6,7 are implementation dependent */ default: goto die; } break; case 12: switch (sel) { case 0: save_cpu_state(ctx, 1); gen_helper_mtc0_status(arg); /* BS_STOP isn't good enough here, hflags may have changed. */ gen_save_pc(ctx->pc + 4); ctx->bstate = BS_EXCP; rn = "Status"; break; case 1: check_insn(env, ctx, ISA_MIPS32R2); gen_helper_mtc0_intctl(arg); /* Stop translation as we may have switched the execution mode */ ctx->bstate = BS_STOP; rn = "IntCtl"; break; case 2: check_insn(env, ctx, ISA_MIPS32R2); gen_helper_mtc0_srsctl(arg); /* Stop translation as we may have switched the execution mode */ ctx->bstate = BS_STOP; rn = "SRSCtl"; break; case 3: check_insn(env, ctx, ISA_MIPS32R2); gen_mtc0_store32(arg, offsetof(CPUState, CP0_SRSMap)); /* Stop translation as we may have switched the execution mode */ ctx->bstate = BS_STOP; rn = "SRSMap"; break; default: goto die; } break; case 13: switch (sel) { case 0: save_cpu_state(ctx, 1); gen_helper_mtc0_cause(arg); rn = "Cause"; break; default: goto die; } break; case 14: switch (sel) { case 0: gen_mtc0_store64(arg, offsetof(CPUState, CP0_EPC)); rn = "EPC"; break; default: goto die; } break; case 15: switch (sel) { case 0: /* ignored */ rn = "PRid"; break; case 1: check_insn(env, ctx, ISA_MIPS32R2); gen_helper_mtc0_ebase(arg); rn = "EBase"; break; default: goto die; } break; case 16: switch (sel) { case 0: gen_helper_mtc0_config0(arg); rn = "Config"; /* Stop translation as we may have switched the execution mode */ ctx->bstate = BS_STOP; break; case 1: /* ignored, read only */ rn = "Config1"; break; case 2: gen_helper_mtc0_config2(arg); rn = "Config2"; /* Stop translation as we may have switched the execution mode */ ctx->bstate = BS_STOP; break; case 3: /* ignored, read only */ rn = "Config3"; break; /* 4,5 are reserved */ /* 6,7 are implementation dependent */ case 6: /* ignored */ rn = "Config6"; break; case 7: /* ignored */ rn = "Config7"; break; default: rn = "Invalid config selector"; goto die; } break; case 17: switch (sel) { case 0: gen_helper_mtc0_lladdr(arg); rn = "LLAddr"; break; default: goto die; } break; case 18: switch (sel) { case 0 ... 7: gen_helper_1i(mtc0_watchlo, arg, sel); rn = "WatchLo"; break; default: goto die; } break; case 19: switch (sel) { case 0 ... 7: gen_helper_1i(mtc0_watchhi, arg, sel); rn = "WatchHi"; break; default: goto die; } break; case 20: switch (sel) { case 0: #if defined(TARGET_MIPS64) check_insn(env, ctx, ISA_MIPS3); gen_helper_mtc0_xcontext(arg); rn = "XContext"; break; #endif default: goto die; } break; case 21: /* Officially reserved, but sel 0 is used for R1x000 framemask */ switch (sel) { case 0: gen_helper_mtc0_framemask(arg); rn = "Framemask"; break; default: goto die; } break; case 22: /* ignored */ rn = "Diagnostic"; /* implementation dependent */ break; case 23: switch (sel) { case 0: gen_helper_mtc0_debug(arg); /* EJTAG support */ /* BS_STOP isn't good enough here, hflags may have changed. */ gen_save_pc(ctx->pc + 4); ctx->bstate = BS_EXCP; rn = "Debug"; break; case 1: // gen_helper_mtc0_tracecontrol(arg); /* PDtrace support */ rn = "TraceControl"; /* Stop translation as we may have switched the execution mode */ ctx->bstate = BS_STOP; // break; case 2: // gen_helper_mtc0_tracecontrol2(arg); /* PDtrace support */ rn = "TraceControl2"; /* Stop translation as we may have switched the execution mode */ ctx->bstate = BS_STOP; // break; case 3: /* Stop translation as we may have switched the execution mode */ ctx->bstate = BS_STOP; // gen_helper_mtc0_usertracedata(arg); /* PDtrace support */ rn = "UserTraceData"; /* Stop translation as we may have switched the execution mode */ ctx->bstate = BS_STOP; // break; case 4: // gen_helper_mtc0_tracebpc(arg); /* PDtrace support */ /* Stop translation as we may have switched the execution mode */ ctx->bstate = BS_STOP; rn = "TraceBPC"; // break; default: goto die; } break; case 24: switch (sel) { case 0: /* EJTAG support */ gen_mtc0_store64(arg, offsetof(CPUState, CP0_DEPC)); rn = "DEPC"; break; default: goto die; } break; case 25: switch (sel) { case 0: gen_helper_mtc0_performance0(arg); rn = "Performance0"; break; case 1: // gen_helper_mtc0_performance1(arg); rn = "Performance1"; // break; case 2: // gen_helper_mtc0_performance2(arg); rn = "Performance2"; // break; case 3: // gen_helper_mtc0_performance3(arg); rn = "Performance3"; // break; case 4: // gen_helper_mtc0_performance4(arg); rn = "Performance4"; // break; case 5: // gen_helper_mtc0_performance5(arg); rn = "Performance5"; // break; case 6: // gen_helper_mtc0_performance6(arg); rn = "Performance6"; // break; case 7: // gen_helper_mtc0_performance7(arg); rn = "Performance7"; // break; default: goto die; } break; case 26: /* ignored */ rn = "ECC"; break; case 27: switch (sel) { case 0 ... 3: /* ignored */ rn = "CacheErr"; break; default: goto die; } break; case 28: switch (sel) { case 0: case 2: case 4: case 6: gen_helper_mtc0_taglo(arg); rn = "TagLo"; break; case 1: case 3: case 5: case 7: gen_helper_mtc0_datalo(arg); rn = "DataLo"; break; default: goto die; } break; case 29: switch (sel) { case 0: case 2: case 4: case 6: gen_helper_mtc0_taghi(arg); rn = "TagHi"; break; case 1: case 3: case 5: case 7: gen_helper_mtc0_datahi(arg); rn = "DataHi"; break; default: rn = "invalid sel"; goto die; } break; case 30: switch (sel) { case 0: gen_mtc0_store64(arg, offsetof(CPUState, CP0_ErrorEPC)); rn = "ErrorEPC"; break; default: goto die; } break; case 31: switch (sel) { case 0: /* EJTAG support */ gen_mtc0_store32(arg, offsetof(CPUState, CP0_DESAVE)); rn = "DESAVE"; break; default: goto die; } /* Stop translation as we may have switched the execution mode */ ctx->bstate = BS_STOP; break; default: goto die; } (void)rn; /* avoid a compiler warning */ LOG_DISAS("mtc0 %s (reg %d sel %d)\n", rn, reg, sel); /* For simplicity assume that all writes can cause interrupts. */ if (use_icount) { gen_io_end(); ctx->bstate = BS_STOP; } return; die: LOG_DISAS("mtc0 %s (reg %d sel %d)\n", rn, reg, sel); generate_exception(ctx, EXCP_RI); } #if defined(TARGET_MIPS64) static void gen_dmfc0 (CPUState *env, DisasContext *ctx, TCGv arg, int reg, int sel) { const char *rn = "invalid"; if (sel != 0) check_insn(env, ctx, ISA_MIPS64); switch (reg) { case 0: switch (sel) { case 0: gen_mfc0_load32(arg, offsetof(CPUState, CP0_Index)); rn = "Index"; break; case 1: check_insn(env, ctx, ASE_MT); gen_helper_mfc0_mvpcontrol(arg); rn = "MVPControl"; break; case 2: check_insn(env, ctx, ASE_MT); gen_helper_mfc0_mvpconf0(arg); rn = "MVPConf0"; break; case 3: check_insn(env, ctx, ASE_MT); gen_helper_mfc0_mvpconf1(arg); rn = "MVPConf1"; break; default: goto die; } break; case 1: switch (sel) { case 0: gen_helper_mfc0_random(arg); rn = "Random"; break; case 1: check_insn(env, ctx, ASE_MT); gen_mfc0_load32(arg, offsetof(CPUState, CP0_VPEControl)); rn = "VPEControl"; break; case 2: check_insn(env, ctx, ASE_MT); gen_mfc0_load32(arg, offsetof(CPUState, CP0_VPEConf0)); rn = "VPEConf0"; break; case 3: check_insn(env, ctx, ASE_MT); gen_mfc0_load32(arg, offsetof(CPUState, CP0_VPEConf1)); rn = "VPEConf1"; break; case 4: check_insn(env, ctx, ASE_MT); tcg_gen_ld_tl(arg, cpu_env, offsetof(CPUState, CP0_YQMask)); rn = "YQMask"; break; case 5: check_insn(env, ctx, ASE_MT); tcg_gen_ld_tl(arg, cpu_env, offsetof(CPUState, CP0_VPESchedule)); rn = "VPESchedule"; break; case 6: check_insn(env, ctx, ASE_MT); tcg_gen_ld_tl(arg, cpu_env, offsetof(CPUState, CP0_VPEScheFBack)); rn = "VPEScheFBack"; break; case 7: check_insn(env, ctx, ASE_MT); gen_mfc0_load32(arg, offsetof(CPUState, CP0_VPEOpt)); rn = "VPEOpt"; break; default: goto die; } break; case 2: switch (sel) { case 0: tcg_gen_ld_tl(arg, cpu_env, offsetof(CPUState, CP0_EntryLo0)); rn = "EntryLo0"; break; case 1: check_insn(env, ctx, ASE_MT); gen_helper_mfc0_tcstatus(arg); rn = "TCStatus"; break; case 2: check_insn(env, ctx, ASE_MT); gen_helper_mfc0_tcbind(arg); rn = "TCBind"; break; case 3: check_insn(env, ctx, ASE_MT); gen_helper_dmfc0_tcrestart(arg); rn = "TCRestart"; break; case 4: check_insn(env, ctx, ASE_MT); gen_helper_dmfc0_tchalt(arg); rn = "TCHalt"; break; case 5: check_insn(env, ctx, ASE_MT); gen_helper_dmfc0_tccontext(arg); rn = "TCContext"; break; case 6: check_insn(env, ctx, ASE_MT); gen_helper_dmfc0_tcschedule(arg); rn = "TCSchedule"; break; case 7: check_insn(env, ctx, ASE_MT); gen_helper_dmfc0_tcschefback(arg); rn = "TCScheFBack"; break; default: goto die; } break; case 3: switch (sel) { case 0: tcg_gen_ld_tl(arg, cpu_env, offsetof(CPUState, CP0_EntryLo1)); rn = "EntryLo1"; break; default: goto die; } break; case 4: switch (sel) { case 0: tcg_gen_ld_tl(arg, cpu_env, offsetof(CPUState, CP0_Context)); rn = "Context"; break; case 1: // gen_helper_dmfc0_contextconfig(arg); /* SmartMIPS ASE */ rn = "ContextConfig"; // break; default: goto die; } break; case 5: switch (sel) { case 0: gen_mfc0_load32(arg, offsetof(CPUState, CP0_PageMask)); rn = "PageMask"; break; case 1: check_insn(env, ctx, ISA_MIPS32R2); gen_mfc0_load32(arg, offsetof(CPUState, CP0_PageGrain)); rn = "PageGrain"; break; default: goto die; } break; case 6: switch (sel) { case 0: gen_mfc0_load32(arg, offsetof(CPUState, CP0_Wired)); rn = "Wired"; break; case 1: check_insn(env, ctx, ISA_MIPS32R2); gen_mfc0_load32(arg, offsetof(CPUState, CP0_SRSConf0)); rn = "SRSConf0"; break; case 2: check_insn(env, ctx, ISA_MIPS32R2); gen_mfc0_load32(arg, offsetof(CPUState, CP0_SRSConf1)); rn = "SRSConf1"; break; case 3: check_insn(env, ctx, ISA_MIPS32R2); gen_mfc0_load32(arg, offsetof(CPUState, CP0_SRSConf2)); rn = "SRSConf2"; break; case 4: check_insn(env, ctx, ISA_MIPS32R2); gen_mfc0_load32(arg, offsetof(CPUState, CP0_SRSConf3)); rn = "SRSConf3"; break; case 5: check_insn(env, ctx, ISA_MIPS32R2); gen_mfc0_load32(arg, offsetof(CPUState, CP0_SRSConf4)); rn = "SRSConf4"; break; default: goto die; } break; case 7: switch (sel) { case 0: check_insn(env, ctx, ISA_MIPS32R2); gen_mfc0_load32(arg, offsetof(CPUState, CP0_HWREna)); rn = "HWREna"; break; default: goto die; } break; case 8: switch (sel) { case 0: tcg_gen_ld_tl(arg, cpu_env, offsetof(CPUState, CP0_BadVAddr)); rn = "BadVAddr"; break; default: goto die; } break; case 9: switch (sel) { case 0: /* Mark as an IO operation because we read the time. */ if (use_icount) gen_io_start(); gen_helper_mfc0_count(arg); if (use_icount) { gen_io_end(); } /* Break the TB to be able to take timer interrupts immediately after reading count. */ ctx->bstate = BS_STOP; rn = "Count"; break; /* 6,7 are implementation dependent */ default: goto die; } break; case 10: switch (sel) { case 0: tcg_gen_ld_tl(arg, cpu_env, offsetof(CPUState, CP0_EntryHi)); rn = "EntryHi"; break; default: goto die; } break; case 11: switch (sel) { case 0: gen_mfc0_load32(arg, offsetof(CPUState, CP0_Compare)); rn = "Compare"; break; /* 6,7 are implementation dependent */ default: goto die; } break; case 12: switch (sel) { case 0: gen_mfc0_load32(arg, offsetof(CPUState, CP0_Status)); rn = "Status"; break; case 1: check_insn(env, ctx, ISA_MIPS32R2); gen_mfc0_load32(arg, offsetof(CPUState, CP0_IntCtl)); rn = "IntCtl"; break; case 2: check_insn(env, ctx, ISA_MIPS32R2); gen_mfc0_load32(arg, offsetof(CPUState, CP0_SRSCtl)); rn = "SRSCtl"; break; case 3: check_insn(env, ctx, ISA_MIPS32R2); gen_mfc0_load32(arg, offsetof(CPUState, CP0_SRSMap)); rn = "SRSMap"; break; default: goto die; } break; case 13: switch (sel) { case 0: gen_mfc0_load32(arg, offsetof(CPUState, CP0_Cause)); rn = "Cause"; break; default: goto die; } break; case 14: switch (sel) { case 0: tcg_gen_ld_tl(arg, cpu_env, offsetof(CPUState, CP0_EPC)); rn = "EPC"; break; default: goto die; } break; case 15: switch (sel) { case 0: gen_mfc0_load32(arg, offsetof(CPUState, CP0_PRid)); rn = "PRid"; break; case 1: check_insn(env, ctx, ISA_MIPS32R2); gen_mfc0_load32(arg, offsetof(CPUState, CP0_EBase)); rn = "EBase"; break; default: goto die; } break; case 16: switch (sel) { case 0: gen_mfc0_load32(arg, offsetof(CPUState, CP0_Config0)); rn = "Config"; break; case 1: gen_mfc0_load32(arg, offsetof(CPUState, CP0_Config1)); rn = "Config1"; break; case 2: gen_mfc0_load32(arg, offsetof(CPUState, CP0_Config2)); rn = "Config2"; break; case 3: gen_mfc0_load32(arg, offsetof(CPUState, CP0_Config3)); rn = "Config3"; break; /* 6,7 are implementation dependent */ case 6: gen_mfc0_load32(arg, offsetof(CPUState, CP0_Config6)); rn = "Config6"; break; case 7: gen_mfc0_load32(arg, offsetof(CPUState, CP0_Config7)); rn = "Config7"; break; default: goto die; } break; case 17: switch (sel) { case 0: gen_helper_dmfc0_lladdr(arg); rn = "LLAddr"; break; default: goto die; } break; case 18: switch (sel) { case 0 ... 7: gen_helper_1i(dmfc0_watchlo, arg, sel); rn = "WatchLo"; break; default: goto die; } break; case 19: switch (sel) { case 0 ... 7: gen_helper_1i(mfc0_watchhi, arg, sel); rn = "WatchHi"; break; default: goto die; } break; case 20: switch (sel) { case 0: check_insn(env, ctx, ISA_MIPS3); tcg_gen_ld_tl(arg, cpu_env, offsetof(CPUState, CP0_XContext)); rn = "XContext"; break; default: goto die; } break; case 21: /* Officially reserved, but sel 0 is used for R1x000 framemask */ switch (sel) { case 0: gen_mfc0_load32(arg, offsetof(CPUState, CP0_Framemask)); rn = "Framemask"; break; default: goto die; } break; case 22: tcg_gen_movi_tl(arg, 0); /* unimplemented */ rn = "'Diagnostic"; /* implementation dependent */ break; case 23: switch (sel) { case 0: gen_helper_mfc0_debug(arg); /* EJTAG support */ rn = "Debug"; break; case 1: // gen_helper_dmfc0_tracecontrol(arg); /* PDtrace support */ rn = "TraceControl"; // break; case 2: // gen_helper_dmfc0_tracecontrol2(arg); /* PDtrace support */ rn = "TraceControl2"; // break; case 3: // gen_helper_dmfc0_usertracedata(arg); /* PDtrace support */ rn = "UserTraceData"; // break; case 4: // gen_helper_dmfc0_tracebpc(arg); /* PDtrace support */ rn = "TraceBPC"; // break; default: goto die; } break; case 24: switch (sel) { case 0: /* EJTAG support */ tcg_gen_ld_tl(arg, cpu_env, offsetof(CPUState, CP0_DEPC)); rn = "DEPC"; break; default: goto die; } break; case 25: switch (sel) { case 0: gen_mfc0_load32(arg, offsetof(CPUState, CP0_Performance0)); rn = "Performance0"; break; case 1: // gen_helper_dmfc0_performance1(arg); rn = "Performance1"; // break; case 2: // gen_helper_dmfc0_performance2(arg); rn = "Performance2"; // break; case 3: // gen_helper_dmfc0_performance3(arg); rn = "Performance3"; // break; case 4: // gen_helper_dmfc0_performance4(arg); rn = "Performance4"; // break; case 5: // gen_helper_dmfc0_performance5(arg); rn = "Performance5"; // break; case 6: // gen_helper_dmfc0_performance6(arg); rn = "Performance6"; // break; case 7: // gen_helper_dmfc0_performance7(arg); rn = "Performance7"; // break; default: goto die; } break; case 26: tcg_gen_movi_tl(arg, 0); /* unimplemented */ rn = "ECC"; break; case 27: switch (sel) { /* ignored */ case 0 ... 3: tcg_gen_movi_tl(arg, 0); /* unimplemented */ rn = "CacheErr"; break; default: goto die; } break; case 28: switch (sel) { case 0: case 2: case 4: case 6: gen_mfc0_load32(arg, offsetof(CPUState, CP0_TagLo)); rn = "TagLo"; break; case 1: case 3: case 5: case 7: gen_mfc0_load32(arg, offsetof(CPUState, CP0_DataLo)); rn = "DataLo"; break; default: goto die; } break; case 29: switch (sel) { case 0: case 2: case 4: case 6: gen_mfc0_load32(arg, offsetof(CPUState, CP0_TagHi)); rn = "TagHi"; break; case 1: case 3: case 5: case 7: gen_mfc0_load32(arg, offsetof(CPUState, CP0_DataHi)); rn = "DataHi"; break; default: goto die; } break; case 30: switch (sel) { case 0: tcg_gen_ld_tl(arg, cpu_env, offsetof(CPUState, CP0_ErrorEPC)); rn = "ErrorEPC"; break; default: goto die; } break; case 31: switch (sel) { case 0: /* EJTAG support */ gen_mfc0_load32(arg, offsetof(CPUState, CP0_DESAVE)); rn = "DESAVE"; break; default: goto die; } break; default: goto die; } (void)rn; /* avoid a compiler warning */ LOG_DISAS("dmfc0 %s (reg %d sel %d)\n", rn, reg, sel); return; die: LOG_DISAS("dmfc0 %s (reg %d sel %d)\n", rn, reg, sel); generate_exception(ctx, EXCP_RI); } static void gen_dmtc0 (CPUState *env, DisasContext *ctx, TCGv arg, int reg, int sel) { const char *rn = "invalid"; if (sel != 0) check_insn(env, ctx, ISA_MIPS64); if (use_icount) gen_io_start(); switch (reg) { case 0: switch (sel) { case 0: gen_helper_mtc0_index(arg); rn = "Index"; break; case 1: check_insn(env, ctx, ASE_MT); gen_helper_mtc0_mvpcontrol(arg); rn = "MVPControl"; break; case 2: check_insn(env, ctx, ASE_MT); /* ignored */ rn = "MVPConf0"; break; case 3: check_insn(env, ctx, ASE_MT); /* ignored */ rn = "MVPConf1"; break; default: goto die; } break; case 1: switch (sel) { case 0: /* ignored */ rn = "Random"; break; case 1: check_insn(env, ctx, ASE_MT); gen_helper_mtc0_vpecontrol(arg); rn = "VPEControl"; break; case 2: check_insn(env, ctx, ASE_MT); gen_helper_mtc0_vpeconf0(arg); rn = "VPEConf0"; break; case 3: check_insn(env, ctx, ASE_MT); gen_helper_mtc0_vpeconf1(arg); rn = "VPEConf1"; break; case 4: check_insn(env, ctx, ASE_MT); gen_helper_mtc0_yqmask(arg); rn = "YQMask"; break; case 5: check_insn(env, ctx, ASE_MT); tcg_gen_st_tl(arg, cpu_env, offsetof(CPUState, CP0_VPESchedule)); rn = "VPESchedule"; break; case 6: check_insn(env, ctx, ASE_MT); tcg_gen_st_tl(arg, cpu_env, offsetof(CPUState, CP0_VPEScheFBack)); rn = "VPEScheFBack"; break; case 7: check_insn(env, ctx, ASE_MT); gen_helper_mtc0_vpeopt(arg); rn = "VPEOpt"; break; default: goto die; } break; case 2: switch (sel) { case 0: gen_helper_mtc0_entrylo0(arg); rn = "EntryLo0"; break; case 1: check_insn(env, ctx, ASE_MT); gen_helper_mtc0_tcstatus(arg); rn = "TCStatus"; break; case 2: check_insn(env, ctx, ASE_MT); gen_helper_mtc0_tcbind(arg); rn = "TCBind"; break; case 3: check_insn(env, ctx, ASE_MT); gen_helper_mtc0_tcrestart(arg); rn = "TCRestart"; break; case 4: check_insn(env, ctx, ASE_MT); gen_helper_mtc0_tchalt(arg); rn = "TCHalt"; break; case 5: check_insn(env, ctx, ASE_MT); gen_helper_mtc0_tccontext(arg); rn = "TCContext"; break; case 6: check_insn(env, ctx, ASE_MT); gen_helper_mtc0_tcschedule(arg); rn = "TCSchedule"; break; case 7: check_insn(env, ctx, ASE_MT); gen_helper_mtc0_tcschefback(arg); rn = "TCScheFBack"; break; default: goto die; } break; case 3: switch (sel) { case 0: gen_helper_mtc0_entrylo1(arg); rn = "EntryLo1"; break; default: goto die; } break; case 4: switch (sel) { case 0: gen_helper_mtc0_context(arg); rn = "Context"; break; case 1: // gen_helper_mtc0_contextconfig(arg); /* SmartMIPS ASE */ rn = "ContextConfig"; // break; default: goto die; } break; case 5: switch (sel) { case 0: gen_helper_mtc0_pagemask(arg); rn = "PageMask"; break; case 1: check_insn(env, ctx, ISA_MIPS32R2); gen_helper_mtc0_pagegrain(arg); rn = "PageGrain"; break; default: goto die; } break; case 6: switch (sel) { case 0: gen_helper_mtc0_wired(arg); rn = "Wired"; break; case 1: check_insn(env, ctx, ISA_MIPS32R2); gen_helper_mtc0_srsconf0(arg); rn = "SRSConf0"; break; case 2: check_insn(env, ctx, ISA_MIPS32R2); gen_helper_mtc0_srsconf1(arg); rn = "SRSConf1"; break; case 3: check_insn(env, ctx, ISA_MIPS32R2); gen_helper_mtc0_srsconf2(arg); rn = "SRSConf2"; break; case 4: check_insn(env, ctx, ISA_MIPS32R2); gen_helper_mtc0_srsconf3(arg); rn = "SRSConf3"; break; case 5: check_insn(env, ctx, ISA_MIPS32R2); gen_helper_mtc0_srsconf4(arg); rn = "SRSConf4"; break; default: goto die; } break; case 7: switch (sel) { case 0: check_insn(env, ctx, ISA_MIPS32R2); gen_helper_mtc0_hwrena(arg); rn = "HWREna"; break; default: goto die; } break; case 8: /* ignored */ rn = "BadVAddr"; break; case 9: switch (sel) { case 0: gen_helper_mtc0_count(arg); rn = "Count"; break; /* 6,7 are implementation dependent */ default: goto die; } /* Stop translation as we may have switched the execution mode */ ctx->bstate = BS_STOP; break; case 10: switch (sel) { case 0: gen_helper_mtc0_entryhi(arg); rn = "EntryHi"; break; default: goto die; } break; case 11: switch (sel) { case 0: gen_helper_mtc0_compare(arg); rn = "Compare"; break; /* 6,7 are implementation dependent */ default: goto die; } /* Stop translation as we may have switched the execution mode */ ctx->bstate = BS_STOP; break; case 12: switch (sel) { case 0: save_cpu_state(ctx, 1); gen_helper_mtc0_status(arg); /* BS_STOP isn't good enough here, hflags may have changed. */ gen_save_pc(ctx->pc + 4); ctx->bstate = BS_EXCP; rn = "Status"; break; case 1: check_insn(env, ctx, ISA_MIPS32R2); gen_helper_mtc0_intctl(arg); /* Stop translation as we may have switched the execution mode */ ctx->bstate = BS_STOP; rn = "IntCtl"; break; case 2: check_insn(env, ctx, ISA_MIPS32R2); gen_helper_mtc0_srsctl(arg); /* Stop translation as we may have switched the execution mode */ ctx->bstate = BS_STOP; rn = "SRSCtl"; break; case 3: check_insn(env, ctx, ISA_MIPS32R2); gen_mtc0_store32(arg, offsetof(CPUState, CP0_SRSMap)); /* Stop translation as we may have switched the execution mode */ ctx->bstate = BS_STOP; rn = "SRSMap"; break; default: goto die; } break; case 13: switch (sel) { case 0: save_cpu_state(ctx, 1); /* Mark as an IO operation because we may trigger a software interrupt. */ if (use_icount) { gen_io_start(); } gen_helper_mtc0_cause(arg); if (use_icount) { gen_io_end(); } /* Stop translation as we may have triggered an intetrupt */ ctx->bstate = BS_STOP; rn = "Cause"; break; default: goto die; } break; case 14: switch (sel) { case 0: tcg_gen_st_tl(arg, cpu_env, offsetof(CPUState, CP0_EPC)); rn = "EPC"; break; default: goto die; } break; case 15: switch (sel) { case 0: /* ignored */ rn = "PRid"; break; case 1: check_insn(env, ctx, ISA_MIPS32R2); gen_helper_mtc0_ebase(arg); rn = "EBase"; break; default: goto die; } break; case 16: switch (sel) { case 0: gen_helper_mtc0_config0(arg); rn = "Config"; /* Stop translation as we may have switched the execution mode */ ctx->bstate = BS_STOP; break; case 1: /* ignored, read only */ rn = "Config1"; break; case 2: gen_helper_mtc0_config2(arg); rn = "Config2"; /* Stop translation as we may have switched the execution mode */ ctx->bstate = BS_STOP; break; case 3: /* ignored */ rn = "Config3"; break; /* 6,7 are implementation dependent */ default: rn = "Invalid config selector"; goto die; } break; case 17: switch (sel) { case 0: gen_helper_mtc0_lladdr(arg); rn = "LLAddr"; break; default: goto die; } break; case 18: switch (sel) { case 0 ... 7: gen_helper_1i(mtc0_watchlo, arg, sel); rn = "WatchLo"; break; default: goto die; } break; case 19: switch (sel) { case 0 ... 7: gen_helper_1i(mtc0_watchhi, arg, sel); rn = "WatchHi"; break; default: goto die; } break; case 20: switch (sel) { case 0: check_insn(env, ctx, ISA_MIPS3); gen_helper_mtc0_xcontext(arg); rn = "XContext"; break; default: goto die; } break; case 21: /* Officially reserved, but sel 0 is used for R1x000 framemask */ switch (sel) { case 0: gen_helper_mtc0_framemask(arg); rn = "Framemask"; break; default: goto die; } break; case 22: /* ignored */ rn = "Diagnostic"; /* implementation dependent */ break; case 23: switch (sel) { case 0: gen_helper_mtc0_debug(arg); /* EJTAG support */ /* BS_STOP isn't good enough here, hflags may have changed. */ gen_save_pc(ctx->pc + 4); ctx->bstate = BS_EXCP; rn = "Debug"; break; case 1: // gen_helper_mtc0_tracecontrol(arg); /* PDtrace support */ /* Stop translation as we may have switched the execution mode */ ctx->bstate = BS_STOP; rn = "TraceControl"; // break; case 2: // gen_helper_mtc0_tracecontrol2(arg); /* PDtrace support */ /* Stop translation as we may have switched the execution mode */ ctx->bstate = BS_STOP; rn = "TraceControl2"; // break; case 3: // gen_helper_mtc0_usertracedata(arg); /* PDtrace support */ /* Stop translation as we may have switched the execution mode */ ctx->bstate = BS_STOP; rn = "UserTraceData"; // break; case 4: // gen_helper_mtc0_tracebpc(arg); /* PDtrace support */ /* Stop translation as we may have switched the execution mode */ ctx->bstate = BS_STOP; rn = "TraceBPC"; // break; default: goto die; } break; case 24: switch (sel) { case 0: /* EJTAG support */ tcg_gen_st_tl(arg, cpu_env, offsetof(CPUState, CP0_DEPC)); rn = "DEPC"; break; default: goto die; } break; case 25: switch (sel) { case 0: gen_helper_mtc0_performance0(arg); rn = "Performance0"; break; case 1: // gen_helper_mtc0_performance1(arg); rn = "Performance1"; // break; case 2: // gen_helper_mtc0_performance2(arg); rn = "Performance2"; // break; case 3: // gen_helper_mtc0_performance3(arg); rn = "Performance3"; // break; case 4: // gen_helper_mtc0_performance4(arg); rn = "Performance4"; // break; case 5: // gen_helper_mtc0_performance5(arg); rn = "Performance5"; // break; case 6: // gen_helper_mtc0_performance6(arg); rn = "Performance6"; // break; case 7: // gen_helper_mtc0_performance7(arg); rn = "Performance7"; // break; default: goto die; } break; case 26: /* ignored */ rn = "ECC"; break; case 27: switch (sel) { case 0 ... 3: /* ignored */ rn = "CacheErr"; break; default: goto die; } break; case 28: switch (sel) { case 0: case 2: case 4: case 6: gen_helper_mtc0_taglo(arg); rn = "TagLo"; break; case 1: case 3: case 5: case 7: gen_helper_mtc0_datalo(arg); rn = "DataLo"; break; default: goto die; } break; case 29: switch (sel) { case 0: case 2: case 4: case 6: gen_helper_mtc0_taghi(arg); rn = "TagHi"; break; case 1: case 3: case 5: case 7: gen_helper_mtc0_datahi(arg); rn = "DataHi"; break; default: rn = "invalid sel"; goto die; } break; case 30: switch (sel) { case 0: tcg_gen_st_tl(arg, cpu_env, offsetof(CPUState, CP0_ErrorEPC)); rn = "ErrorEPC"; break; default: goto die; } break; case 31: switch (sel) { case 0: /* EJTAG support */ gen_mtc0_store32(arg, offsetof(CPUState, CP0_DESAVE)); rn = "DESAVE"; break; default: goto die; } /* Stop translation as we may have switched the execution mode */ ctx->bstate = BS_STOP; break; default: goto die; } (void)rn; /* avoid a compiler warning */ LOG_DISAS("dmtc0 %s (reg %d sel %d)\n", rn, reg, sel); /* For simplicity assume that all writes can cause interrupts. */ if (use_icount) { gen_io_end(); ctx->bstate = BS_STOP; } return; die: LOG_DISAS("dmtc0 %s (reg %d sel %d)\n", rn, reg, sel); generate_exception(ctx, EXCP_RI); } #endif /* TARGET_MIPS64 */ static void gen_mftr(CPUState *env, DisasContext *ctx, int rt, int rd, int u, int sel, int h) { int other_tc = env->CP0_VPEControl & (0xff << CP0VPECo_TargTC); TCGv t0 = tcg_temp_local_new(); if ((env->CP0_VPEConf0 & (1 << CP0VPEC0_MVP)) == 0 && ((env->tcs[other_tc].CP0_TCBind & (0xf << CP0TCBd_CurVPE)) != (env->active_tc.CP0_TCBind & (0xf << CP0TCBd_CurVPE)))) tcg_gen_movi_tl(t0, -1); else if ((env->CP0_VPEControl & (0xff << CP0VPECo_TargTC)) > (env->mvp->CP0_MVPConf0 & (0xff << CP0MVPC0_PTC))) tcg_gen_movi_tl(t0, -1); else if (u == 0) { switch (rt) { case 1: switch (sel) { case 1: gen_helper_mftc0_vpecontrol(t0); break; case 2: gen_helper_mftc0_vpeconf0(t0); break; default: goto die; break; } break; case 2: switch (sel) { case 1: gen_helper_mftc0_tcstatus(t0); break; case 2: gen_helper_mftc0_tcbind(t0); break; case 3: gen_helper_mftc0_tcrestart(t0); break; case 4: gen_helper_mftc0_tchalt(t0); break; case 5: gen_helper_mftc0_tccontext(t0); break; case 6: gen_helper_mftc0_tcschedule(t0); break; case 7: gen_helper_mftc0_tcschefback(t0); break; default: gen_mfc0(env, ctx, t0, rt, sel); break; } break; case 10: switch (sel) { case 0: gen_helper_mftc0_entryhi(t0); break; default: gen_mfc0(env, ctx, t0, rt, sel); break; } case 12: switch (sel) { case 0: gen_helper_mftc0_status(t0); break; default: gen_mfc0(env, ctx, t0, rt, sel); break; } case 13: switch (sel) { case 0: gen_helper_mftc0_cause(t0); break; default: goto die; break; } break; case 14: switch (sel) { case 0: gen_helper_mftc0_epc(t0); break; default: goto die; break; } break; case 15: switch (sel) { case 1: gen_helper_mftc0_ebase(t0); break; default: goto die; break; } break; case 16: switch (sel) { case 0 ... 7: gen_helper_mftc0_configx(t0, tcg_const_tl(sel)); break; default: goto die; break; } break; case 23: switch (sel) { case 0: gen_helper_mftc0_debug(t0); break; default: gen_mfc0(env, ctx, t0, rt, sel); break; } break; default: gen_mfc0(env, ctx, t0, rt, sel); } } else switch (sel) { /* GPR registers. */ case 0: gen_helper_1i(mftgpr, t0, rt); break; /* Auxiliary CPU registers */ case 1: switch (rt) { case 0: gen_helper_1i(mftlo, t0, 0); break; case 1: gen_helper_1i(mfthi, t0, 0); break; case 2: gen_helper_1i(mftacx, t0, 0); break; case 4: gen_helper_1i(mftlo, t0, 1); break; case 5: gen_helper_1i(mfthi, t0, 1); break; case 6: gen_helper_1i(mftacx, t0, 1); break; case 8: gen_helper_1i(mftlo, t0, 2); break; case 9: gen_helper_1i(mfthi, t0, 2); break; case 10: gen_helper_1i(mftacx, t0, 2); break; case 12: gen_helper_1i(mftlo, t0, 3); break; case 13: gen_helper_1i(mfthi, t0, 3); break; case 14: gen_helper_1i(mftacx, t0, 3); break; case 16: gen_helper_mftdsp(t0); break; default: goto die; } break; /* Floating point (COP1). */ case 2: /* XXX: For now we support only a single FPU context. */ if (h == 0) { TCGv_i32 fp0 = tcg_temp_new_i32(); gen_load_fpr32(fp0, rt); tcg_gen_ext_i32_tl(t0, fp0); tcg_temp_free_i32(fp0); } else { TCGv_i32 fp0 = tcg_temp_new_i32(); gen_load_fpr32h(fp0, rt); tcg_gen_ext_i32_tl(t0, fp0); tcg_temp_free_i32(fp0); } break; case 3: /* XXX: For now we support only a single FPU context. */ gen_helper_1i(cfc1, t0, rt); break; /* COP2: Not implemented. */ case 4: case 5: /* fall through */ default: goto die; } LOG_DISAS("mftr (reg %d u %d sel %d h %d)\n", rt, u, sel, h); gen_store_gpr(t0, rd); tcg_temp_free(t0); return; die: tcg_temp_free(t0); LOG_DISAS("mftr (reg %d u %d sel %d h %d)\n", rt, u, sel, h); generate_exception(ctx, EXCP_RI); } static void gen_mttr(CPUState *env, DisasContext *ctx, int rd, int rt, int u, int sel, int h) { int other_tc = env->CP0_VPEControl & (0xff << CP0VPECo_TargTC); TCGv t0 = tcg_temp_local_new(); gen_load_gpr(t0, rt); if ((env->CP0_VPEConf0 & (1 << CP0VPEC0_MVP)) == 0 && ((env->tcs[other_tc].CP0_TCBind & (0xf << CP0TCBd_CurVPE)) != (env->active_tc.CP0_TCBind & (0xf << CP0TCBd_CurVPE)))) /* NOP */ ; else if ((env->CP0_VPEControl & (0xff << CP0VPECo_TargTC)) > (env->mvp->CP0_MVPConf0 & (0xff << CP0MVPC0_PTC))) /* NOP */ ; else if (u == 0) { switch (rd) { case 1: switch (sel) { case 1: gen_helper_mttc0_vpecontrol(t0); break; case 2: gen_helper_mttc0_vpeconf0(t0); break; default: goto die; break; } break; case 2: switch (sel) { case 1: gen_helper_mttc0_tcstatus(t0); break; case 2: gen_helper_mttc0_tcbind(t0); break; case 3: gen_helper_mttc0_tcrestart(t0); break; case 4: gen_helper_mttc0_tchalt(t0); break; case 5: gen_helper_mttc0_tccontext(t0); break; case 6: gen_helper_mttc0_tcschedule(t0); break; case 7: gen_helper_mttc0_tcschefback(t0); break; default: gen_mtc0(env, ctx, t0, rd, sel); break; } break; case 10: switch (sel) { case 0: gen_helper_mttc0_entryhi(t0); break; default: gen_mtc0(env, ctx, t0, rd, sel); break; } case 12: switch (sel) { case 0: gen_helper_mttc0_status(t0); break; default: gen_mtc0(env, ctx, t0, rd, sel); break; } case 13: switch (sel) { case 0: gen_helper_mttc0_cause(t0); break; default: goto die; break; } break; case 15: switch (sel) { case 1: gen_helper_mttc0_ebase(t0); break; default: goto die; break; } break; case 23: switch (sel) { case 0: gen_helper_mttc0_debug(t0); break; default: gen_mtc0(env, ctx, t0, rd, sel); break; } break; default: gen_mtc0(env, ctx, t0, rd, sel); } } else switch (sel) { /* GPR registers. */ case 0: gen_helper_1i(mttgpr, t0, rd); break; /* Auxiliary CPU registers */ case 1: switch (rd) { case 0: gen_helper_1i(mttlo, t0, 0); break; case 1: gen_helper_1i(mtthi, t0, 0); break; case 2: gen_helper_1i(mttacx, t0, 0); break; case 4: gen_helper_1i(mttlo, t0, 1); break; case 5: gen_helper_1i(mtthi, t0, 1); break; case 6: gen_helper_1i(mttacx, t0, 1); break; case 8: gen_helper_1i(mttlo, t0, 2); break; case 9: gen_helper_1i(mtthi, t0, 2); break; case 10: gen_helper_1i(mttacx, t0, 2); break; case 12: gen_helper_1i(mttlo, t0, 3); break; case 13: gen_helper_1i(mtthi, t0, 3); break; case 14: gen_helper_1i(mttacx, t0, 3); break; case 16: gen_helper_mttdsp(t0); break; default: goto die; } break; /* Floating point (COP1). */ case 2: /* XXX: For now we support only a single FPU context. */ if (h == 0) { TCGv_i32 fp0 = tcg_temp_new_i32(); tcg_gen_trunc_tl_i32(fp0, t0); gen_store_fpr32(fp0, rd); tcg_temp_free_i32(fp0); } else { TCGv_i32 fp0 = tcg_temp_new_i32(); tcg_gen_trunc_tl_i32(fp0, t0); gen_store_fpr32h(fp0, rd); tcg_temp_free_i32(fp0); } break; case 3: /* XXX: For now we support only a single FPU context. */ gen_helper_1i(ctc1, t0, rd); break; /* COP2: Not implemented. */ case 4: case 5: /* fall through */ default: goto die; } LOG_DISAS("mttr (reg %d u %d sel %d h %d)\n", rd, u, sel, h); tcg_temp_free(t0); return; die: tcg_temp_free(t0); LOG_DISAS("mttr (reg %d u %d sel %d h %d)\n", rd, u, sel, h); generate_exception(ctx, EXCP_RI); } static void gen_cp0 (CPUState *env, DisasContext *ctx, uint32_t opc, int rt, int rd) { const char *opn = "ldst"; switch (opc) { case OPC_MFC0: if (rt == 0) { /* Treat as NOP. */ return; } gen_mfc0(env, ctx, cpu_gpr[rt], rd, ctx->opcode & 0x7); opn = "mfc0"; break; case OPC_MTC0: { TCGv t0 = tcg_temp_new(); gen_load_gpr(t0, rt); gen_mtc0(env, ctx, t0, rd, ctx->opcode & 0x7); tcg_temp_free(t0); } opn = "mtc0"; break; #if defined(TARGET_MIPS64) case OPC_DMFC0: check_insn(env, ctx, ISA_MIPS3); if (rt == 0) { /* Treat as NOP. */ return; } gen_dmfc0(env, ctx, cpu_gpr[rt], rd, ctx->opcode & 0x7); opn = "dmfc0"; break; case OPC_DMTC0: check_insn(env, ctx, ISA_MIPS3); { TCGv t0 = tcg_temp_new(); gen_load_gpr(t0, rt); gen_dmtc0(env, ctx, t0, rd, ctx->opcode & 0x7); tcg_temp_free(t0); } opn = "dmtc0"; break; #endif case OPC_MFTR: check_insn(env, ctx, ASE_MT); if (rd == 0) { /* Treat as NOP. */ return; } gen_mftr(env, ctx, rt, rd, (ctx->opcode >> 5) & 1, ctx->opcode & 0x7, (ctx->opcode >> 4) & 1); opn = "mftr"; break; case OPC_MTTR: check_insn(env, ctx, ASE_MT); gen_mttr(env, ctx, rd, rt, (ctx->opcode >> 5) & 1, ctx->opcode & 0x7, (ctx->opcode >> 4) & 1); opn = "mttr"; break; case OPC_TLBWI: opn = "tlbwi"; if (!env->tlb->helper_tlbwi) goto die; gen_helper_tlbwi(); break; case OPC_TLBWR: opn = "tlbwr"; if (!env->tlb->helper_tlbwr) goto die; gen_helper_tlbwr(); break; case OPC_TLBP: opn = "tlbp"; if (!env->tlb->helper_tlbp) goto die; gen_helper_tlbp(); break; case OPC_TLBR: opn = "tlbr"; if (!env->tlb->helper_tlbr) goto die; gen_helper_tlbr(); break; case OPC_ERET: opn = "eret"; check_insn(env, ctx, ISA_MIPS2); gen_helper_eret(); ctx->bstate = BS_EXCP; break; case OPC_DERET: opn = "deret"; check_insn(env, ctx, ISA_MIPS32); if (!(ctx->hflags & MIPS_HFLAG_DM)) { MIPS_INVAL(opn); generate_exception(ctx, EXCP_RI); } else { gen_helper_deret(); ctx->bstate = BS_EXCP; } break; case OPC_WAIT: opn = "wait"; check_insn(env, ctx, ISA_MIPS3 | ISA_MIPS32); /* If we get an exception, we want to restart at next instruction */ ctx->pc += 4; save_cpu_state(ctx, 1); ctx->pc -= 4; gen_helper_wait(); ctx->bstate = BS_EXCP; break; default: die: MIPS_INVAL(opn); generate_exception(ctx, EXCP_RI); return; } (void)opn; /* avoid a compiler warning */ MIPS_DEBUG("%s %s %d", opn, regnames[rt], rd); } #endif /* !CONFIG_USER_ONLY */ /* CP1 Branches (before delay slot) */ static void gen_compute_branch1 (CPUState *env, DisasContext *ctx, uint32_t op, int32_t cc, int32_t offset) { target_ulong btarget; const char *opn = "cp1 cond branch"; TCGv_i32 t0 = tcg_temp_new_i32(); if (cc != 0) check_insn(env, ctx, ISA_MIPS4 | ISA_MIPS32); btarget = ctx->pc + 4 + offset; switch (op) { case OPC_BC1F: tcg_gen_shri_i32(t0, fpu_fcr31, get_fp_bit(cc)); tcg_gen_not_i32(t0, t0); tcg_gen_andi_i32(t0, t0, 1); tcg_gen_extu_i32_tl(bcond, t0); opn = "bc1f"; goto not_likely; case OPC_BC1FL: tcg_gen_shri_i32(t0, fpu_fcr31, get_fp_bit(cc)); tcg_gen_not_i32(t0, t0); tcg_gen_andi_i32(t0, t0, 1); tcg_gen_extu_i32_tl(bcond, t0); opn = "bc1fl"; goto likely; case OPC_BC1T: tcg_gen_shri_i32(t0, fpu_fcr31, get_fp_bit(cc)); tcg_gen_andi_i32(t0, t0, 1); tcg_gen_extu_i32_tl(bcond, t0); opn = "bc1t"; goto not_likely; case OPC_BC1TL: tcg_gen_shri_i32(t0, fpu_fcr31, get_fp_bit(cc)); tcg_gen_andi_i32(t0, t0, 1); tcg_gen_extu_i32_tl(bcond, t0); opn = "bc1tl"; likely: ctx->hflags |= MIPS_HFLAG_BL; break; case OPC_BC1FANY2: { TCGv_i32 t1 = tcg_temp_new_i32(); tcg_gen_shri_i32(t0, fpu_fcr31, get_fp_bit(cc)); tcg_gen_shri_i32(t1, fpu_fcr31, get_fp_bit(cc+1)); tcg_gen_nor_i32(t0, t0, t1); tcg_temp_free_i32(t1); tcg_gen_andi_i32(t0, t0, 1); tcg_gen_extu_i32_tl(bcond, t0); } opn = "bc1any2f"; goto not_likely; case OPC_BC1TANY2: { TCGv_i32 t1 = tcg_temp_new_i32(); tcg_gen_shri_i32(t0, fpu_fcr31, get_fp_bit(cc)); tcg_gen_shri_i32(t1, fpu_fcr31, get_fp_bit(cc+1)); tcg_gen_or_i32(t0, t0, t1); tcg_temp_free_i32(t1); tcg_gen_andi_i32(t0, t0, 1); tcg_gen_extu_i32_tl(bcond, t0); } opn = "bc1any2t"; goto not_likely; case OPC_BC1FANY4: { TCGv_i32 t1 = tcg_temp_new_i32(); tcg_gen_shri_i32(t0, fpu_fcr31, get_fp_bit(cc)); tcg_gen_shri_i32(t1, fpu_fcr31, get_fp_bit(cc+1)); tcg_gen_or_i32(t0, t0, t1); tcg_gen_shri_i32(t1, fpu_fcr31, get_fp_bit(cc+2)); tcg_gen_or_i32(t0, t0, t1); tcg_gen_shri_i32(t1, fpu_fcr31, get_fp_bit(cc+3)); tcg_gen_nor_i32(t0, t0, t1); tcg_temp_free_i32(t1); tcg_gen_andi_i32(t0, t0, 1); tcg_gen_extu_i32_tl(bcond, t0); } opn = "bc1any4f"; goto not_likely; case OPC_BC1TANY4: { TCGv_i32 t1 = tcg_temp_new_i32(); tcg_gen_shri_i32(t0, fpu_fcr31, get_fp_bit(cc)); tcg_gen_shri_i32(t1, fpu_fcr31, get_fp_bit(cc+1)); tcg_gen_or_i32(t0, t0, t1); tcg_gen_shri_i32(t1, fpu_fcr31, get_fp_bit(cc+2)); tcg_gen_or_i32(t0, t0, t1); tcg_gen_shri_i32(t1, fpu_fcr31, get_fp_bit(cc+3)); tcg_gen_or_i32(t0, t0, t1); tcg_temp_free_i32(t1); tcg_gen_andi_i32(t0, t0, 1); tcg_gen_extu_i32_tl(bcond, t0); } opn = "bc1any4t"; not_likely: ctx->hflags |= MIPS_HFLAG_BC; break; default: MIPS_INVAL(opn); generate_exception (ctx, EXCP_RI); goto out; } (void)opn; /* avoid a compiler warning */ MIPS_DEBUG("%s: cond %02x target " TARGET_FMT_lx, opn, ctx->hflags, btarget); ctx->btarget = btarget; out: tcg_temp_free_i32(t0); } /* Coprocessor 1 (FPU) */ #define FOP(func, fmt) (((fmt) << 21) | (func)) enum fopcode { OPC_ADD_S = FOP(0, FMT_S), OPC_SUB_S = FOP(1, FMT_S), OPC_MUL_S = FOP(2, FMT_S), OPC_DIV_S = FOP(3, FMT_S), OPC_SQRT_S = FOP(4, FMT_S), OPC_ABS_S = FOP(5, FMT_S), OPC_MOV_S = FOP(6, FMT_S), OPC_NEG_S = FOP(7, FMT_S), OPC_ROUND_L_S = FOP(8, FMT_S), OPC_TRUNC_L_S = FOP(9, FMT_S), OPC_CEIL_L_S = FOP(10, FMT_S), OPC_FLOOR_L_S = FOP(11, FMT_S), OPC_ROUND_W_S = FOP(12, FMT_S), OPC_TRUNC_W_S = FOP(13, FMT_S), OPC_CEIL_W_S = FOP(14, FMT_S), OPC_FLOOR_W_S = FOP(15, FMT_S), OPC_MOVCF_S = FOP(17, FMT_S), OPC_MOVZ_S = FOP(18, FMT_S), OPC_MOVN_S = FOP(19, FMT_S), OPC_RECIP_S = FOP(21, FMT_S), OPC_RSQRT_S = FOP(22, FMT_S), OPC_RECIP2_S = FOP(28, FMT_S), OPC_RECIP1_S = FOP(29, FMT_S), OPC_RSQRT1_S = FOP(30, FMT_S), OPC_RSQRT2_S = FOP(31, FMT_S), OPC_CVT_D_S = FOP(33, FMT_S), OPC_CVT_W_S = FOP(36, FMT_S), OPC_CVT_L_S = FOP(37, FMT_S), OPC_CVT_PS_S = FOP(38, FMT_S), OPC_CMP_F_S = FOP (48, FMT_S), OPC_CMP_UN_S = FOP (49, FMT_S), OPC_CMP_EQ_S = FOP (50, FMT_S), OPC_CMP_UEQ_S = FOP (51, FMT_S), OPC_CMP_OLT_S = FOP (52, FMT_S), OPC_CMP_ULT_S = FOP (53, FMT_S), OPC_CMP_OLE_S = FOP (54, FMT_S), OPC_CMP_ULE_S = FOP (55, FMT_S), OPC_CMP_SF_S = FOP (56, FMT_S), OPC_CMP_NGLE_S = FOP (57, FMT_S), OPC_CMP_SEQ_S = FOP (58, FMT_S), OPC_CMP_NGL_S = FOP (59, FMT_S), OPC_CMP_LT_S = FOP (60, FMT_S), OPC_CMP_NGE_S = FOP (61, FMT_S), OPC_CMP_LE_S = FOP (62, FMT_S), OPC_CMP_NGT_S = FOP (63, FMT_S), OPC_ADD_D = FOP(0, FMT_D), OPC_SUB_D = FOP(1, FMT_D), OPC_MUL_D = FOP(2, FMT_D), OPC_DIV_D = FOP(3, FMT_D), OPC_SQRT_D = FOP(4, FMT_D), OPC_ABS_D = FOP(5, FMT_D), OPC_MOV_D = FOP(6, FMT_D), OPC_NEG_D = FOP(7, FMT_D), OPC_ROUND_L_D = FOP(8, FMT_D), OPC_TRUNC_L_D = FOP(9, FMT_D), OPC_CEIL_L_D = FOP(10, FMT_D), OPC_FLOOR_L_D = FOP(11, FMT_D), OPC_ROUND_W_D = FOP(12, FMT_D), OPC_TRUNC_W_D = FOP(13, FMT_D), OPC_CEIL_W_D = FOP(14, FMT_D), OPC_FLOOR_W_D = FOP(15, FMT_D), OPC_MOVCF_D = FOP(17, FMT_D), OPC_MOVZ_D = FOP(18, FMT_D), OPC_MOVN_D = FOP(19, FMT_D), OPC_RECIP_D = FOP(21, FMT_D), OPC_RSQRT_D = FOP(22, FMT_D), OPC_RECIP2_D = FOP(28, FMT_D), OPC_RECIP1_D = FOP(29, FMT_D), OPC_RSQRT1_D = FOP(30, FMT_D), OPC_RSQRT2_D = FOP(31, FMT_D), OPC_CVT_S_D = FOP(32, FMT_D), OPC_CVT_W_D = FOP(36, FMT_D), OPC_CVT_L_D = FOP(37, FMT_D), OPC_CMP_F_D = FOP (48, FMT_D), OPC_CMP_UN_D = FOP (49, FMT_D), OPC_CMP_EQ_D = FOP (50, FMT_D), OPC_CMP_UEQ_D = FOP (51, FMT_D), OPC_CMP_OLT_D = FOP (52, FMT_D), OPC_CMP_ULT_D = FOP (53, FMT_D), OPC_CMP_OLE_D = FOP (54, FMT_D), OPC_CMP_ULE_D = FOP (55, FMT_D), OPC_CMP_SF_D = FOP (56, FMT_D), OPC_CMP_NGLE_D = FOP (57, FMT_D), OPC_CMP_SEQ_D = FOP (58, FMT_D), OPC_CMP_NGL_D = FOP (59, FMT_D), OPC_CMP_LT_D = FOP (60, FMT_D), OPC_CMP_NGE_D = FOP (61, FMT_D), OPC_CMP_LE_D = FOP (62, FMT_D), OPC_CMP_NGT_D = FOP (63, FMT_D), OPC_CVT_S_W = FOP(32, FMT_W), OPC_CVT_D_W = FOP(33, FMT_W), OPC_CVT_S_L = FOP(32, FMT_L), OPC_CVT_D_L = FOP(33, FMT_L), OPC_CVT_PS_PW = FOP(38, FMT_W), OPC_ADD_PS = FOP(0, FMT_PS), OPC_SUB_PS = FOP(1, FMT_PS), OPC_MUL_PS = FOP(2, FMT_PS), OPC_DIV_PS = FOP(3, FMT_PS), OPC_ABS_PS = FOP(5, FMT_PS), OPC_MOV_PS = FOP(6, FMT_PS), OPC_NEG_PS = FOP(7, FMT_PS), OPC_MOVCF_PS = FOP(17, FMT_PS), OPC_MOVZ_PS = FOP(18, FMT_PS), OPC_MOVN_PS = FOP(19, FMT_PS), OPC_ADDR_PS = FOP(24, FMT_PS), OPC_MULR_PS = FOP(26, FMT_PS), OPC_RECIP2_PS = FOP(28, FMT_PS), OPC_RECIP1_PS = FOP(29, FMT_PS), OPC_RSQRT1_PS = FOP(30, FMT_PS), OPC_RSQRT2_PS = FOP(31, FMT_PS), OPC_CVT_S_PU = FOP(32, FMT_PS), OPC_CVT_PW_PS = FOP(36, FMT_PS), OPC_CVT_S_PL = FOP(40, FMT_PS), OPC_PLL_PS = FOP(44, FMT_PS), OPC_PLU_PS = FOP(45, FMT_PS), OPC_PUL_PS = FOP(46, FMT_PS), OPC_PUU_PS = FOP(47, FMT_PS), OPC_CMP_F_PS = FOP (48, FMT_PS), OPC_CMP_UN_PS = FOP (49, FMT_PS), OPC_CMP_EQ_PS = FOP (50, FMT_PS), OPC_CMP_UEQ_PS = FOP (51, FMT_PS), OPC_CMP_OLT_PS = FOP (52, FMT_PS), OPC_CMP_ULT_PS = FOP (53, FMT_PS), OPC_CMP_OLE_PS = FOP (54, FMT_PS), OPC_CMP_ULE_PS = FOP (55, FMT_PS), OPC_CMP_SF_PS = FOP (56, FMT_PS), OPC_CMP_NGLE_PS = FOP (57, FMT_PS), OPC_CMP_SEQ_PS = FOP (58, FMT_PS), OPC_CMP_NGL_PS = FOP (59, FMT_PS), OPC_CMP_LT_PS = FOP (60, FMT_PS), OPC_CMP_NGE_PS = FOP (61, FMT_PS), OPC_CMP_LE_PS = FOP (62, FMT_PS), OPC_CMP_NGT_PS = FOP (63, FMT_PS), }; static void gen_cp1 (DisasContext *ctx, uint32_t opc, int rt, int fs) { const char *opn = "cp1 move"; TCGv t0 = tcg_temp_new(); switch (opc) { case OPC_MFC1: { TCGv_i32 fp0 = tcg_temp_new_i32(); gen_load_fpr32(fp0, fs); tcg_gen_ext_i32_tl(t0, fp0); tcg_temp_free_i32(fp0); } gen_store_gpr(t0, rt); opn = "mfc1"; break; case OPC_MTC1: gen_load_gpr(t0, rt); { TCGv_i32 fp0 = tcg_temp_new_i32(); tcg_gen_trunc_tl_i32(fp0, t0); gen_store_fpr32(fp0, fs); tcg_temp_free_i32(fp0); } opn = "mtc1"; break; case OPC_CFC1: gen_helper_1i(cfc1, t0, fs); gen_store_gpr(t0, rt); opn = "cfc1"; break; case OPC_CTC1: gen_load_gpr(t0, rt); gen_helper_1i(ctc1, t0, fs); opn = "ctc1"; break; #if defined(TARGET_MIPS64) case OPC_DMFC1: gen_load_fpr64(ctx, t0, fs); gen_store_gpr(t0, rt); opn = "dmfc1"; break; case OPC_DMTC1: gen_load_gpr(t0, rt); gen_store_fpr64(ctx, t0, fs); opn = "dmtc1"; break; #endif case OPC_MFHC1: { TCGv_i32 fp0 = tcg_temp_new_i32(); gen_load_fpr32h(fp0, fs); tcg_gen_ext_i32_tl(t0, fp0); tcg_temp_free_i32(fp0); } gen_store_gpr(t0, rt); opn = "mfhc1"; break; case OPC_MTHC1: gen_load_gpr(t0, rt); { TCGv_i32 fp0 = tcg_temp_new_i32(); tcg_gen_trunc_tl_i32(fp0, t0); gen_store_fpr32h(fp0, fs); tcg_temp_free_i32(fp0); } opn = "mthc1"; break; default: MIPS_INVAL(opn); generate_exception (ctx, EXCP_RI); goto out; } (void)opn; /* avoid a compiler warning */ MIPS_DEBUG("%s %s %s", opn, regnames[rt], fregnames[fs]); out: tcg_temp_free(t0); } static void gen_movci (DisasContext *ctx, int rd, int rs, int cc, int tf) { int l1; TCGCond cond; TCGv_i32 t0; if (rd == 0) { /* Treat as NOP. */ return; } if (tf) cond = TCG_COND_EQ; else cond = TCG_COND_NE; l1 = gen_new_label(); t0 = tcg_temp_new_i32(); tcg_gen_andi_i32(t0, fpu_fcr31, 1 << get_fp_bit(cc)); tcg_gen_brcondi_i32(cond, t0, 0, l1); tcg_temp_free_i32(t0); if (rs == 0) { tcg_gen_movi_tl(cpu_gpr[rd], 0); } else { tcg_gen_mov_tl(cpu_gpr[rd], cpu_gpr[rs]); } gen_set_label(l1); } static inline void gen_movcf_s (int fs, int fd, int cc, int tf) { int cond; TCGv_i32 t0 = tcg_temp_new_i32(); int l1 = gen_new_label(); if (tf) cond = TCG_COND_EQ; else cond = TCG_COND_NE; tcg_gen_andi_i32(t0, fpu_fcr31, 1 << get_fp_bit(cc)); tcg_gen_brcondi_i32(cond, t0, 0, l1); gen_load_fpr32(t0, fs); gen_store_fpr32(t0, fd); gen_set_label(l1); tcg_temp_free_i32(t0); } static inline void gen_movcf_d (DisasContext *ctx, int fs, int fd, int cc, int tf) { int cond; TCGv_i32 t0 = tcg_temp_new_i32(); TCGv_i64 fp0; int l1 = gen_new_label(); if (tf) cond = TCG_COND_EQ; else cond = TCG_COND_NE; tcg_gen_andi_i32(t0, fpu_fcr31, 1 << get_fp_bit(cc)); tcg_gen_brcondi_i32(cond, t0, 0, l1); tcg_temp_free_i32(t0); fp0 = tcg_temp_new_i64(); gen_load_fpr64(ctx, fp0, fs); gen_store_fpr64(ctx, fp0, fd); tcg_temp_free_i64(fp0); gen_set_label(l1); } static inline void gen_movcf_ps (int fs, int fd, int cc, int tf) { int cond; TCGv_i32 t0 = tcg_temp_new_i32(); int l1 = gen_new_label(); int l2 = gen_new_label(); if (tf) cond = TCG_COND_EQ; else cond = TCG_COND_NE; tcg_gen_andi_i32(t0, fpu_fcr31, 1 << get_fp_bit(cc)); tcg_gen_brcondi_i32(cond, t0, 0, l1); gen_load_fpr32(t0, fs); gen_store_fpr32(t0, fd); gen_set_label(l1); tcg_gen_andi_i32(t0, fpu_fcr31, 1 << get_fp_bit(cc+1)); tcg_gen_brcondi_i32(cond, t0, 0, l2); gen_load_fpr32h(t0, fs); gen_store_fpr32h(t0, fd); tcg_temp_free_i32(t0); gen_set_label(l2); } static void gen_farith (DisasContext *ctx, enum fopcode op1, int ft, int fs, int fd, int cc) { const char *opn = "farith"; const char *condnames[] = { "c.f", "c.un", "c.eq", "c.ueq", "c.olt", "c.ult", "c.ole", "c.ule", "c.sf", "c.ngle", "c.seq", "c.ngl", "c.lt", "c.nge", "c.le", "c.ngt", }; const char *condnames_abs[] = { "cabs.f", "cabs.un", "cabs.eq", "cabs.ueq", "cabs.olt", "cabs.ult", "cabs.ole", "cabs.ule", "cabs.sf", "cabs.ngle", "cabs.seq", "cabs.ngl", "cabs.lt", "cabs.nge", "cabs.le", "cabs.ngt", }; enum { BINOP, CMPOP, OTHEROP } optype = OTHEROP; uint32_t func = ctx->opcode & 0x3f; switch (op1) { case OPC_ADD_S: { TCGv_i32 fp0 = tcg_temp_new_i32(); TCGv_i32 fp1 = tcg_temp_new_i32(); gen_load_fpr32(fp0, fs); gen_load_fpr32(fp1, ft); gen_helper_float_add_s(fp0, fp0, fp1); tcg_temp_free_i32(fp1); gen_store_fpr32(fp0, fd); tcg_temp_free_i32(fp0); } opn = "add.s"; optype = BINOP; break; case OPC_SUB_S: { TCGv_i32 fp0 = tcg_temp_new_i32(); TCGv_i32 fp1 = tcg_temp_new_i32(); gen_load_fpr32(fp0, fs); gen_load_fpr32(fp1, ft); gen_helper_float_sub_s(fp0, fp0, fp1); tcg_temp_free_i32(fp1); gen_store_fpr32(fp0, fd); tcg_temp_free_i32(fp0); } opn = "sub.s"; optype = BINOP; break; case OPC_MUL_S: { TCGv_i32 fp0 = tcg_temp_new_i32(); TCGv_i32 fp1 = tcg_temp_new_i32(); gen_load_fpr32(fp0, fs); gen_load_fpr32(fp1, ft); gen_helper_float_mul_s(fp0, fp0, fp1); tcg_temp_free_i32(fp1); gen_store_fpr32(fp0, fd); tcg_temp_free_i32(fp0); } opn = "mul.s"; optype = BINOP; break; case OPC_DIV_S: { TCGv_i32 fp0 = tcg_temp_new_i32(); TCGv_i32 fp1 = tcg_temp_new_i32(); gen_load_fpr32(fp0, fs); gen_load_fpr32(fp1, ft); gen_helper_float_div_s(fp0, fp0, fp1); tcg_temp_free_i32(fp1); gen_store_fpr32(fp0, fd); tcg_temp_free_i32(fp0); } opn = "div.s"; optype = BINOP; break; case OPC_SQRT_S: { TCGv_i32 fp0 = tcg_temp_new_i32(); gen_load_fpr32(fp0, fs); gen_helper_float_sqrt_s(fp0, fp0); gen_store_fpr32(fp0, fd); tcg_temp_free_i32(fp0); } opn = "sqrt.s"; break; case OPC_ABS_S: { TCGv_i32 fp0 = tcg_temp_new_i32(); gen_load_fpr32(fp0, fs); gen_helper_float_abs_s(fp0, fp0); gen_store_fpr32(fp0, fd); tcg_temp_free_i32(fp0); } opn = "abs.s"; break; case OPC_MOV_S: { TCGv_i32 fp0 = tcg_temp_new_i32(); gen_load_fpr32(fp0, fs); gen_store_fpr32(fp0, fd); tcg_temp_free_i32(fp0); } opn = "mov.s"; break; case OPC_NEG_S: { TCGv_i32 fp0 = tcg_temp_new_i32(); gen_load_fpr32(fp0, fs); gen_helper_float_chs_s(fp0, fp0); gen_store_fpr32(fp0, fd); tcg_temp_free_i32(fp0); } opn = "neg.s"; break; case OPC_ROUND_L_S: check_cp1_64bitmode(ctx); { TCGv_i32 fp32 = tcg_temp_new_i32(); TCGv_i64 fp64 = tcg_temp_new_i64(); gen_load_fpr32(fp32, fs); gen_helper_float_roundl_s(fp64, fp32); tcg_temp_free_i32(fp32); gen_store_fpr64(ctx, fp64, fd); tcg_temp_free_i64(fp64); } opn = "round.l.s"; break; case OPC_TRUNC_L_S: check_cp1_64bitmode(ctx); { TCGv_i32 fp32 = tcg_temp_new_i32(); TCGv_i64 fp64 = tcg_temp_new_i64(); gen_load_fpr32(fp32, fs); gen_helper_float_truncl_s(fp64, fp32); tcg_temp_free_i32(fp32); gen_store_fpr64(ctx, fp64, fd); tcg_temp_free_i64(fp64); } opn = "trunc.l.s"; break; case OPC_CEIL_L_S: check_cp1_64bitmode(ctx); { TCGv_i32 fp32 = tcg_temp_new_i32(); TCGv_i64 fp64 = tcg_temp_new_i64(); gen_load_fpr32(fp32, fs); gen_helper_float_ceill_s(fp64, fp32); tcg_temp_free_i32(fp32); gen_store_fpr64(ctx, fp64, fd); tcg_temp_free_i64(fp64); } opn = "ceil.l.s"; break; case OPC_FLOOR_L_S: check_cp1_64bitmode(ctx); { TCGv_i32 fp32 = tcg_temp_new_i32(); TCGv_i64 fp64 = tcg_temp_new_i64(); gen_load_fpr32(fp32, fs); gen_helper_float_floorl_s(fp64, fp32); tcg_temp_free_i32(fp32); gen_store_fpr64(ctx, fp64, fd); tcg_temp_free_i64(fp64); } opn = "floor.l.s"; break; case OPC_ROUND_W_S: { TCGv_i32 fp0 = tcg_temp_new_i32(); gen_load_fpr32(fp0, fs); gen_helper_float_roundw_s(fp0, fp0); gen_store_fpr32(fp0, fd); tcg_temp_free_i32(fp0); } opn = "round.w.s"; break; case OPC_TRUNC_W_S: { TCGv_i32 fp0 = tcg_temp_new_i32(); gen_load_fpr32(fp0, fs); gen_helper_float_truncw_s(fp0, fp0); gen_store_fpr32(fp0, fd); tcg_temp_free_i32(fp0); } opn = "trunc.w.s"; break; case OPC_CEIL_W_S: { TCGv_i32 fp0 = tcg_temp_new_i32(); gen_load_fpr32(fp0, fs); gen_helper_float_ceilw_s(fp0, fp0); gen_store_fpr32(fp0, fd); tcg_temp_free_i32(fp0); } opn = "ceil.w.s"; break; case OPC_FLOOR_W_S: { TCGv_i32 fp0 = tcg_temp_new_i32(); gen_load_fpr32(fp0, fs); gen_helper_float_floorw_s(fp0, fp0); gen_store_fpr32(fp0, fd); tcg_temp_free_i32(fp0); } opn = "floor.w.s"; break; case OPC_MOVCF_S: gen_movcf_s(fs, fd, (ft >> 2) & 0x7, ft & 0x1); opn = "movcf.s"; break; case OPC_MOVZ_S: { int l1 = gen_new_label(); TCGv_i32 fp0; if (ft != 0) { tcg_gen_brcondi_tl(TCG_COND_NE, cpu_gpr[ft], 0, l1); } fp0 = tcg_temp_new_i32(); gen_load_fpr32(fp0, fs); gen_store_fpr32(fp0, fd); tcg_temp_free_i32(fp0); gen_set_label(l1); } opn = "movz.s"; break; case OPC_MOVN_S: { int l1 = gen_new_label(); TCGv_i32 fp0; if (ft != 0) { tcg_gen_brcondi_tl(TCG_COND_EQ, cpu_gpr[ft], 0, l1); fp0 = tcg_temp_new_i32(); gen_load_fpr32(fp0, fs); gen_store_fpr32(fp0, fd); tcg_temp_free_i32(fp0); gen_set_label(l1); } } opn = "movn.s"; break; case OPC_RECIP_S: check_cop1x(ctx); { TCGv_i32 fp0 = tcg_temp_new_i32(); gen_load_fpr32(fp0, fs); gen_helper_float_recip_s(fp0, fp0); gen_store_fpr32(fp0, fd); tcg_temp_free_i32(fp0); } opn = "recip.s"; break; case OPC_RSQRT_S: check_cop1x(ctx); { TCGv_i32 fp0 = tcg_temp_new_i32(); gen_load_fpr32(fp0, fs); gen_helper_float_rsqrt_s(fp0, fp0); gen_store_fpr32(fp0, fd); tcg_temp_free_i32(fp0); } opn = "rsqrt.s"; break; case OPC_RECIP2_S: check_cp1_64bitmode(ctx); { TCGv_i32 fp0 = tcg_temp_new_i32(); TCGv_i32 fp1 = tcg_temp_new_i32(); gen_load_fpr32(fp0, fs); gen_load_fpr32(fp1, fd); gen_helper_float_recip2_s(fp0, fp0, fp1); tcg_temp_free_i32(fp1); gen_store_fpr32(fp0, fd); tcg_temp_free_i32(fp0); } opn = "recip2.s"; break; case OPC_RECIP1_S: check_cp1_64bitmode(ctx); { TCGv_i32 fp0 = tcg_temp_new_i32(); gen_load_fpr32(fp0, fs); gen_helper_float_recip1_s(fp0, fp0); gen_store_fpr32(fp0, fd); tcg_temp_free_i32(fp0); } opn = "recip1.s"; break; case OPC_RSQRT1_S: check_cp1_64bitmode(ctx); { TCGv_i32 fp0 = tcg_temp_new_i32(); gen_load_fpr32(fp0, fs); gen_helper_float_rsqrt1_s(fp0, fp0); gen_store_fpr32(fp0, fd); tcg_temp_free_i32(fp0); } opn = "rsqrt1.s"; break; case OPC_RSQRT2_S: check_cp1_64bitmode(ctx); { TCGv_i32 fp0 = tcg_temp_new_i32(); TCGv_i32 fp1 = tcg_temp_new_i32(); gen_load_fpr32(fp0, fs); gen_load_fpr32(fp1, ft); gen_helper_float_rsqrt2_s(fp0, fp0, fp1); tcg_temp_free_i32(fp1); gen_store_fpr32(fp0, fd); tcg_temp_free_i32(fp0); } opn = "rsqrt2.s"; break; case OPC_CVT_D_S: check_cp1_registers(ctx, fd); { TCGv_i32 fp32 = tcg_temp_new_i32(); TCGv_i64 fp64 = tcg_temp_new_i64(); gen_load_fpr32(fp32, fs); gen_helper_float_cvtd_s(fp64, fp32); tcg_temp_free_i32(fp32); gen_store_fpr64(ctx, fp64, fd); tcg_temp_free_i64(fp64); } opn = "cvt.d.s"; break; case OPC_CVT_W_S: { TCGv_i32 fp0 = tcg_temp_new_i32(); gen_load_fpr32(fp0, fs); gen_helper_float_cvtw_s(fp0, fp0); gen_store_fpr32(fp0, fd); tcg_temp_free_i32(fp0); } opn = "cvt.w.s"; break; case OPC_CVT_L_S: check_cp1_64bitmode(ctx); { TCGv_i32 fp32 = tcg_temp_new_i32(); TCGv_i64 fp64 = tcg_temp_new_i64(); gen_load_fpr32(fp32, fs); gen_helper_float_cvtl_s(fp64, fp32); tcg_temp_free_i32(fp32); gen_store_fpr64(ctx, fp64, fd); tcg_temp_free_i64(fp64); } opn = "cvt.l.s"; break; case OPC_CVT_PS_S: check_cp1_64bitmode(ctx); { TCGv_i64 fp64 = tcg_temp_new_i64(); TCGv_i32 fp32_0 = tcg_temp_new_i32(); TCGv_i32 fp32_1 = tcg_temp_new_i32(); gen_load_fpr32(fp32_0, fs); gen_load_fpr32(fp32_1, ft); tcg_gen_concat_i32_i64(fp64, fp32_0, fp32_1); tcg_temp_free_i32(fp32_1); tcg_temp_free_i32(fp32_0); gen_store_fpr64(ctx, fp64, fd); tcg_temp_free_i64(fp64); } opn = "cvt.ps.s"; break; case OPC_CMP_F_S: case OPC_CMP_UN_S: case OPC_CMP_EQ_S: case OPC_CMP_UEQ_S: case OPC_CMP_OLT_S: case OPC_CMP_ULT_S: case OPC_CMP_OLE_S: case OPC_CMP_ULE_S: case OPC_CMP_SF_S: case OPC_CMP_NGLE_S: case OPC_CMP_SEQ_S: case OPC_CMP_NGL_S: case OPC_CMP_LT_S: case OPC_CMP_NGE_S: case OPC_CMP_LE_S: case OPC_CMP_NGT_S: if (ctx->opcode & (1 << 6)) { gen_cmpabs_s(ctx, func-48, ft, fs, cc); opn = condnames_abs[func-48]; } else { gen_cmp_s(ctx, func-48, ft, fs, cc); opn = condnames[func-48]; } break; case OPC_ADD_D: check_cp1_registers(ctx, fs | ft | fd); { TCGv_i64 fp0 = tcg_temp_new_i64(); TCGv_i64 fp1 = tcg_temp_new_i64(); gen_load_fpr64(ctx, fp0, fs); gen_load_fpr64(ctx, fp1, ft); gen_helper_float_add_d(fp0, fp0, fp1); tcg_temp_free_i64(fp1); gen_store_fpr64(ctx, fp0, fd); tcg_temp_free_i64(fp0); } opn = "add.d"; optype = BINOP; break; case OPC_SUB_D: check_cp1_registers(ctx, fs | ft | fd); { TCGv_i64 fp0 = tcg_temp_new_i64(); TCGv_i64 fp1 = tcg_temp_new_i64(); gen_load_fpr64(ctx, fp0, fs); gen_load_fpr64(ctx, fp1, ft); gen_helper_float_sub_d(fp0, fp0, fp1); tcg_temp_free_i64(fp1); gen_store_fpr64(ctx, fp0, fd); tcg_temp_free_i64(fp0); } opn = "sub.d"; optype = BINOP; break; case OPC_MUL_D: check_cp1_registers(ctx, fs | ft | fd); { TCGv_i64 fp0 = tcg_temp_new_i64(); TCGv_i64 fp1 = tcg_temp_new_i64(); gen_load_fpr64(ctx, fp0, fs); gen_load_fpr64(ctx, fp1, ft); gen_helper_float_mul_d(fp0, fp0, fp1); tcg_temp_free_i64(fp1); gen_store_fpr64(ctx, fp0, fd); tcg_temp_free_i64(fp0); } opn = "mul.d"; optype = BINOP; break; case OPC_DIV_D: check_cp1_registers(ctx, fs | ft | fd); { TCGv_i64 fp0 = tcg_temp_new_i64(); TCGv_i64 fp1 = tcg_temp_new_i64(); gen_load_fpr64(ctx, fp0, fs); gen_load_fpr64(ctx, fp1, ft); gen_helper_float_div_d(fp0, fp0, fp1); tcg_temp_free_i64(fp1); gen_store_fpr64(ctx, fp0, fd); tcg_temp_free_i64(fp0); } opn = "div.d"; optype = BINOP; break; case OPC_SQRT_D: check_cp1_registers(ctx, fs | fd); { TCGv_i64 fp0 = tcg_temp_new_i64(); gen_load_fpr64(ctx, fp0, fs); gen_helper_float_sqrt_d(fp0, fp0); gen_store_fpr64(ctx, fp0, fd); tcg_temp_free_i64(fp0); } opn = "sqrt.d"; break; case OPC_ABS_D: check_cp1_registers(ctx, fs | fd); { TCGv_i64 fp0 = tcg_temp_new_i64(); gen_load_fpr64(ctx, fp0, fs); gen_helper_float_abs_d(fp0, fp0); gen_store_fpr64(ctx, fp0, fd); tcg_temp_free_i64(fp0); } opn = "abs.d"; break; case OPC_MOV_D: check_cp1_registers(ctx, fs | fd); { TCGv_i64 fp0 = tcg_temp_new_i64(); gen_load_fpr64(ctx, fp0, fs); gen_store_fpr64(ctx, fp0, fd); tcg_temp_free_i64(fp0); } opn = "mov.d"; break; case OPC_NEG_D: check_cp1_registers(ctx, fs | fd); { TCGv_i64 fp0 = tcg_temp_new_i64(); gen_load_fpr64(ctx, fp0, fs); gen_helper_float_chs_d(fp0, fp0); gen_store_fpr64(ctx, fp0, fd); tcg_temp_free_i64(fp0); } opn = "neg.d"; break; case OPC_ROUND_L_D: check_cp1_64bitmode(ctx); { TCGv_i64 fp0 = tcg_temp_new_i64(); gen_load_fpr64(ctx, fp0, fs); gen_helper_float_roundl_d(fp0, fp0); gen_store_fpr64(ctx, fp0, fd); tcg_temp_free_i64(fp0); } opn = "round.l.d"; break; case OPC_TRUNC_L_D: check_cp1_64bitmode(ctx); { TCGv_i64 fp0 = tcg_temp_new_i64(); gen_load_fpr64(ctx, fp0, fs); gen_helper_float_truncl_d(fp0, fp0); gen_store_fpr64(ctx, fp0, fd); tcg_temp_free_i64(fp0); } opn = "trunc.l.d"; break; case OPC_CEIL_L_D: check_cp1_64bitmode(ctx); { TCGv_i64 fp0 = tcg_temp_new_i64(); gen_load_fpr64(ctx, fp0, fs); gen_helper_float_ceill_d(fp0, fp0); gen_store_fpr64(ctx, fp0, fd); tcg_temp_free_i64(fp0); } opn = "ceil.l.d"; break; case OPC_FLOOR_L_D: check_cp1_64bitmode(ctx); { TCGv_i64 fp0 = tcg_temp_new_i64(); gen_load_fpr64(ctx, fp0, fs); gen_helper_float_floorl_d(fp0, fp0); gen_store_fpr64(ctx, fp0, fd); tcg_temp_free_i64(fp0); } opn = "floor.l.d"; break; case OPC_ROUND_W_D: check_cp1_registers(ctx, fs); { TCGv_i32 fp32 = tcg_temp_new_i32(); TCGv_i64 fp64 = tcg_temp_new_i64(); gen_load_fpr64(ctx, fp64, fs); gen_helper_float_roundw_d(fp32, fp64); tcg_temp_free_i64(fp64); gen_store_fpr32(fp32, fd); tcg_temp_free_i32(fp32); } opn = "round.w.d"; break; case OPC_TRUNC_W_D: check_cp1_registers(ctx, fs); { TCGv_i32 fp32 = tcg_temp_new_i32(); TCGv_i64 fp64 = tcg_temp_new_i64(); gen_load_fpr64(ctx, fp64, fs); gen_helper_float_truncw_d(fp32, fp64); tcg_temp_free_i64(fp64); gen_store_fpr32(fp32, fd); tcg_temp_free_i32(fp32); } opn = "trunc.w.d"; break; case OPC_CEIL_W_D: check_cp1_registers(ctx, fs); { TCGv_i32 fp32 = tcg_temp_new_i32(); TCGv_i64 fp64 = tcg_temp_new_i64(); gen_load_fpr64(ctx, fp64, fs); gen_helper_float_ceilw_d(fp32, fp64); tcg_temp_free_i64(fp64); gen_store_fpr32(fp32, fd); tcg_temp_free_i32(fp32); } opn = "ceil.w.d"; break; case OPC_FLOOR_W_D: check_cp1_registers(ctx, fs); { TCGv_i32 fp32 = tcg_temp_new_i32(); TCGv_i64 fp64 = tcg_temp_new_i64(); gen_load_fpr64(ctx, fp64, fs); gen_helper_float_floorw_d(fp32, fp64); tcg_temp_free_i64(fp64); gen_store_fpr32(fp32, fd); tcg_temp_free_i32(fp32); } opn = "floor.w.d"; break; case OPC_MOVCF_D: gen_movcf_d(ctx, fs, fd, (ft >> 2) & 0x7, ft & 0x1); opn = "movcf.d"; break; case OPC_MOVZ_D: { int l1 = gen_new_label(); TCGv_i64 fp0; if (ft != 0) { tcg_gen_brcondi_tl(TCG_COND_NE, cpu_gpr[ft], 0, l1); } fp0 = tcg_temp_new_i64(); gen_load_fpr64(ctx, fp0, fs); gen_store_fpr64(ctx, fp0, fd); tcg_temp_free_i64(fp0); gen_set_label(l1); } opn = "movz.d"; break; case OPC_MOVN_D: { int l1 = gen_new_label(); TCGv_i64 fp0; if (ft != 0) { tcg_gen_brcondi_tl(TCG_COND_EQ, cpu_gpr[ft], 0, l1); fp0 = tcg_temp_new_i64(); gen_load_fpr64(ctx, fp0, fs); gen_store_fpr64(ctx, fp0, fd); tcg_temp_free_i64(fp0); gen_set_label(l1); } } opn = "movn.d"; break; case OPC_RECIP_D: check_cp1_64bitmode(ctx); { TCGv_i64 fp0 = tcg_temp_new_i64(); gen_load_fpr64(ctx, fp0, fs); gen_helper_float_recip_d(fp0, fp0); gen_store_fpr64(ctx, fp0, fd); tcg_temp_free_i64(fp0); } opn = "recip.d"; break; case OPC_RSQRT_D: check_cp1_64bitmode(ctx); { TCGv_i64 fp0 = tcg_temp_new_i64(); gen_load_fpr64(ctx, fp0, fs); gen_helper_float_rsqrt_d(fp0, fp0); gen_store_fpr64(ctx, fp0, fd); tcg_temp_free_i64(fp0); } opn = "rsqrt.d"; break; case OPC_RECIP2_D: check_cp1_64bitmode(ctx); { TCGv_i64 fp0 = tcg_temp_new_i64(); TCGv_i64 fp1 = tcg_temp_new_i64(); gen_load_fpr64(ctx, fp0, fs); gen_load_fpr64(ctx, fp1, ft); gen_helper_float_recip2_d(fp0, fp0, fp1); tcg_temp_free_i64(fp1); gen_store_fpr64(ctx, fp0, fd); tcg_temp_free_i64(fp0); } opn = "recip2.d"; break; case OPC_RECIP1_D: check_cp1_64bitmode(ctx); { TCGv_i64 fp0 = tcg_temp_new_i64(); gen_load_fpr64(ctx, fp0, fs); gen_helper_float_recip1_d(fp0, fp0); gen_store_fpr64(ctx, fp0, fd); tcg_temp_free_i64(fp0); } opn = "recip1.d"; break; case OPC_RSQRT1_D: check_cp1_64bitmode(ctx); { TCGv_i64 fp0 = tcg_temp_new_i64(); gen_load_fpr64(ctx, fp0, fs); gen_helper_float_rsqrt1_d(fp0, fp0); gen_store_fpr64(ctx, fp0, fd); tcg_temp_free_i64(fp0); } opn = "rsqrt1.d"; break; case OPC_RSQRT2_D: check_cp1_64bitmode(ctx); { TCGv_i64 fp0 = tcg_temp_new_i64(); TCGv_i64 fp1 = tcg_temp_new_i64(); gen_load_fpr64(ctx, fp0, fs); gen_load_fpr64(ctx, fp1, ft); gen_helper_float_rsqrt2_d(fp0, fp0, fp1); tcg_temp_free_i64(fp1); gen_store_fpr64(ctx, fp0, fd); tcg_temp_free_i64(fp0); } opn = "rsqrt2.d"; break; case OPC_CMP_F_D: case OPC_CMP_UN_D: case OPC_CMP_EQ_D: case OPC_CMP_UEQ_D: case OPC_CMP_OLT_D: case OPC_CMP_ULT_D: case OPC_CMP_OLE_D: case OPC_CMP_ULE_D: case OPC_CMP_SF_D: case OPC_CMP_NGLE_D: case OPC_CMP_SEQ_D: case OPC_CMP_NGL_D: case OPC_CMP_LT_D: case OPC_CMP_NGE_D: case OPC_CMP_LE_D: case OPC_CMP_NGT_D: if (ctx->opcode & (1 << 6)) { gen_cmpabs_d(ctx, func-48, ft, fs, cc); opn = condnames_abs[func-48]; } else { gen_cmp_d(ctx, func-48, ft, fs, cc); opn = condnames[func-48]; } break; case OPC_CVT_S_D: check_cp1_registers(ctx, fs); { TCGv_i32 fp32 = tcg_temp_new_i32(); TCGv_i64 fp64 = tcg_temp_new_i64(); gen_load_fpr64(ctx, fp64, fs); gen_helper_float_cvts_d(fp32, fp64); tcg_temp_free_i64(fp64); gen_store_fpr32(fp32, fd); tcg_temp_free_i32(fp32); } opn = "cvt.s.d"; break; case OPC_CVT_W_D: check_cp1_registers(ctx, fs); { TCGv_i32 fp32 = tcg_temp_new_i32(); TCGv_i64 fp64 = tcg_temp_new_i64(); gen_load_fpr64(ctx, fp64, fs); gen_helper_float_cvtw_d(fp32, fp64); tcg_temp_free_i64(fp64); gen_store_fpr32(fp32, fd); tcg_temp_free_i32(fp32); } opn = "cvt.w.d"; break; case OPC_CVT_L_D: check_cp1_64bitmode(ctx); { TCGv_i64 fp0 = tcg_temp_new_i64(); gen_load_fpr64(ctx, fp0, fs); gen_helper_float_cvtl_d(fp0, fp0); gen_store_fpr64(ctx, fp0, fd); tcg_temp_free_i64(fp0); } opn = "cvt.l.d"; break; case OPC_CVT_S_W: { TCGv_i32 fp0 = tcg_temp_new_i32(); gen_load_fpr32(fp0, fs); gen_helper_float_cvts_w(fp0, fp0); gen_store_fpr32(fp0, fd); tcg_temp_free_i32(fp0); } opn = "cvt.s.w"; break; case OPC_CVT_D_W: check_cp1_registers(ctx, fd); { TCGv_i32 fp32 = tcg_temp_new_i32(); TCGv_i64 fp64 = tcg_temp_new_i64(); gen_load_fpr32(fp32, fs); gen_helper_float_cvtd_w(fp64, fp32); tcg_temp_free_i32(fp32); gen_store_fpr64(ctx, fp64, fd); tcg_temp_free_i64(fp64); } opn = "cvt.d.w"; break; case OPC_CVT_S_L: check_cp1_64bitmode(ctx); { TCGv_i32 fp32 = tcg_temp_new_i32(); TCGv_i64 fp64 = tcg_temp_new_i64(); gen_load_fpr64(ctx, fp64, fs); gen_helper_float_cvts_l(fp32, fp64); tcg_temp_free_i64(fp64); gen_store_fpr32(fp32, fd); tcg_temp_free_i32(fp32); } opn = "cvt.s.l"; break; case OPC_CVT_D_L: check_cp1_64bitmode(ctx); { TCGv_i64 fp0 = tcg_temp_new_i64(); gen_load_fpr64(ctx, fp0, fs); gen_helper_float_cvtd_l(fp0, fp0); gen_store_fpr64(ctx, fp0, fd); tcg_temp_free_i64(fp0); } opn = "cvt.d.l"; break; case OPC_CVT_PS_PW: check_cp1_64bitmode(ctx); { TCGv_i64 fp0 = tcg_temp_new_i64(); gen_load_fpr64(ctx, fp0, fs); gen_helper_float_cvtps_pw(fp0, fp0); gen_store_fpr64(ctx, fp0, fd); tcg_temp_free_i64(fp0); } opn = "cvt.ps.pw"; break; case OPC_ADD_PS: check_cp1_64bitmode(ctx); { TCGv_i64 fp0 = tcg_temp_new_i64(); TCGv_i64 fp1 = tcg_temp_new_i64(); gen_load_fpr64(ctx, fp0, fs); gen_load_fpr64(ctx, fp1, ft); gen_helper_float_add_ps(fp0, fp0, fp1); tcg_temp_free_i64(fp1); gen_store_fpr64(ctx, fp0, fd); tcg_temp_free_i64(fp0); } opn = "add.ps"; break; case OPC_SUB_PS: check_cp1_64bitmode(ctx); { TCGv_i64 fp0 = tcg_temp_new_i64(); TCGv_i64 fp1 = tcg_temp_new_i64(); gen_load_fpr64(ctx, fp0, fs); gen_load_fpr64(ctx, fp1, ft); gen_helper_float_sub_ps(fp0, fp0, fp1); tcg_temp_free_i64(fp1); gen_store_fpr64(ctx, fp0, fd); tcg_temp_free_i64(fp0); } opn = "sub.ps"; break; case OPC_MUL_PS: check_cp1_64bitmode(ctx); { TCGv_i64 fp0 = tcg_temp_new_i64(); TCGv_i64 fp1 = tcg_temp_new_i64(); gen_load_fpr64(ctx, fp0, fs); gen_load_fpr64(ctx, fp1, ft); gen_helper_float_mul_ps(fp0, fp0, fp1); tcg_temp_free_i64(fp1); gen_store_fpr64(ctx, fp0, fd); tcg_temp_free_i64(fp0); } opn = "mul.ps"; break; case OPC_ABS_PS: check_cp1_64bitmode(ctx); { TCGv_i64 fp0 = tcg_temp_new_i64(); gen_load_fpr64(ctx, fp0, fs); gen_helper_float_abs_ps(fp0, fp0); gen_store_fpr64(ctx, fp0, fd); tcg_temp_free_i64(fp0); } opn = "abs.ps"; break; case OPC_MOV_PS: check_cp1_64bitmode(ctx); { TCGv_i64 fp0 = tcg_temp_new_i64(); gen_load_fpr64(ctx, fp0, fs); gen_store_fpr64(ctx, fp0, fd); tcg_temp_free_i64(fp0); } opn = "mov.ps"; break; case OPC_NEG_PS: check_cp1_64bitmode(ctx); { TCGv_i64 fp0 = tcg_temp_new_i64(); gen_load_fpr64(ctx, fp0, fs); gen_helper_float_chs_ps(fp0, fp0); gen_store_fpr64(ctx, fp0, fd); tcg_temp_free_i64(fp0); } opn = "neg.ps"; break; case OPC_MOVCF_PS: check_cp1_64bitmode(ctx); gen_movcf_ps(fs, fd, (ft >> 2) & 0x7, ft & 0x1); opn = "movcf.ps"; break; case OPC_MOVZ_PS: check_cp1_64bitmode(ctx); { int l1 = gen_new_label(); TCGv_i64 fp0; if (ft != 0) tcg_gen_brcondi_tl(TCG_COND_NE, cpu_gpr[ft], 0, l1); fp0 = tcg_temp_new_i64(); gen_load_fpr64(ctx, fp0, fs); gen_store_fpr64(ctx, fp0, fd); tcg_temp_free_i64(fp0); gen_set_label(l1); } opn = "movz.ps"; break; case OPC_MOVN_PS: check_cp1_64bitmode(ctx); { int l1 = gen_new_label(); TCGv_i64 fp0; if (ft != 0) { tcg_gen_brcondi_tl(TCG_COND_EQ, cpu_gpr[ft], 0, l1); fp0 = tcg_temp_new_i64(); gen_load_fpr64(ctx, fp0, fs); gen_store_fpr64(ctx, fp0, fd); tcg_temp_free_i64(fp0); gen_set_label(l1); } } opn = "movn.ps"; break; case OPC_ADDR_PS: check_cp1_64bitmode(ctx); { TCGv_i64 fp0 = tcg_temp_new_i64(); TCGv_i64 fp1 = tcg_temp_new_i64(); gen_load_fpr64(ctx, fp0, ft); gen_load_fpr64(ctx, fp1, fs); gen_helper_float_addr_ps(fp0, fp0, fp1); tcg_temp_free_i64(fp1); gen_store_fpr64(ctx, fp0, fd); tcg_temp_free_i64(fp0); } opn = "addr.ps"; break; case OPC_MULR_PS: check_cp1_64bitmode(ctx); { TCGv_i64 fp0 = tcg_temp_new_i64(); TCGv_i64 fp1 = tcg_temp_new_i64(); gen_load_fpr64(ctx, fp0, ft); gen_load_fpr64(ctx, fp1, fs); gen_helper_float_mulr_ps(fp0, fp0, fp1); tcg_temp_free_i64(fp1); gen_store_fpr64(ctx, fp0, fd); tcg_temp_free_i64(fp0); } opn = "mulr.ps"; break; case OPC_RECIP2_PS: check_cp1_64bitmode(ctx); { TCGv_i64 fp0 = tcg_temp_new_i64(); TCGv_i64 fp1 = tcg_temp_new_i64(); gen_load_fpr64(ctx, fp0, fs); gen_load_fpr64(ctx, fp1, fd); gen_helper_float_recip2_ps(fp0, fp0, fp1); tcg_temp_free_i64(fp1); gen_store_fpr64(ctx, fp0, fd); tcg_temp_free_i64(fp0); } opn = "recip2.ps"; break; case OPC_RECIP1_PS: check_cp1_64bitmode(ctx); { TCGv_i64 fp0 = tcg_temp_new_i64(); gen_load_fpr64(ctx, fp0, fs); gen_helper_float_recip1_ps(fp0, fp0); gen_store_fpr64(ctx, fp0, fd); tcg_temp_free_i64(fp0); } opn = "recip1.ps"; break; case OPC_RSQRT1_PS: check_cp1_64bitmode(ctx); { TCGv_i64 fp0 = tcg_temp_new_i64(); gen_load_fpr64(ctx, fp0, fs); gen_helper_float_rsqrt1_ps(fp0, fp0); gen_store_fpr64(ctx, fp0, fd); tcg_temp_free_i64(fp0); } opn = "rsqrt1.ps"; break; case OPC_RSQRT2_PS: check_cp1_64bitmode(ctx); { TCGv_i64 fp0 = tcg_temp_new_i64(); TCGv_i64 fp1 = tcg_temp_new_i64(); gen_load_fpr64(ctx, fp0, fs); gen_load_fpr64(ctx, fp1, ft); gen_helper_float_rsqrt2_ps(fp0, fp0, fp1); tcg_temp_free_i64(fp1); gen_store_fpr64(ctx, fp0, fd); tcg_temp_free_i64(fp0); } opn = "rsqrt2.ps"; break; case OPC_CVT_S_PU: check_cp1_64bitmode(ctx); { TCGv_i32 fp0 = tcg_temp_new_i32(); gen_load_fpr32h(fp0, fs); gen_helper_float_cvts_pu(fp0, fp0); gen_store_fpr32(fp0, fd); tcg_temp_free_i32(fp0); } opn = "cvt.s.pu"; break; case OPC_CVT_PW_PS: check_cp1_64bitmode(ctx); { TCGv_i64 fp0 = tcg_temp_new_i64(); gen_load_fpr64(ctx, fp0, fs); gen_helper_float_cvtpw_ps(fp0, fp0); gen_store_fpr64(ctx, fp0, fd); tcg_temp_free_i64(fp0); } opn = "cvt.pw.ps"; break; case OPC_CVT_S_PL: check_cp1_64bitmode(ctx); { TCGv_i32 fp0 = tcg_temp_new_i32(); gen_load_fpr32(fp0, fs); gen_helper_float_cvts_pl(fp0, fp0); gen_store_fpr32(fp0, fd); tcg_temp_free_i32(fp0); } opn = "cvt.s.pl"; break; case OPC_PLL_PS: check_cp1_64bitmode(ctx); { TCGv_i32 fp0 = tcg_temp_new_i32(); TCGv_i32 fp1 = tcg_temp_new_i32(); gen_load_fpr32(fp0, fs); gen_load_fpr32(fp1, ft); gen_store_fpr32h(fp0, fd); gen_store_fpr32(fp1, fd); tcg_temp_free_i32(fp0); tcg_temp_free_i32(fp1); } opn = "pll.ps"; break; case OPC_PLU_PS: check_cp1_64bitmode(ctx); { TCGv_i32 fp0 = tcg_temp_new_i32(); TCGv_i32 fp1 = tcg_temp_new_i32(); gen_load_fpr32(fp0, fs); gen_load_fpr32h(fp1, ft); gen_store_fpr32(fp1, fd); gen_store_fpr32h(fp0, fd); tcg_temp_free_i32(fp0); tcg_temp_free_i32(fp1); } opn = "plu.ps"; break; case OPC_PUL_PS: check_cp1_64bitmode(ctx); { TCGv_i32 fp0 = tcg_temp_new_i32(); TCGv_i32 fp1 = tcg_temp_new_i32(); gen_load_fpr32h(fp0, fs); gen_load_fpr32(fp1, ft); gen_store_fpr32(fp1, fd); gen_store_fpr32h(fp0, fd); tcg_temp_free_i32(fp0); tcg_temp_free_i32(fp1); } opn = "pul.ps"; break; case OPC_PUU_PS: check_cp1_64bitmode(ctx); { TCGv_i32 fp0 = tcg_temp_new_i32(); TCGv_i32 fp1 = tcg_temp_new_i32(); gen_load_fpr32h(fp0, fs); gen_load_fpr32h(fp1, ft); gen_store_fpr32(fp1, fd); gen_store_fpr32h(fp0, fd); tcg_temp_free_i32(fp0); tcg_temp_free_i32(fp1); } opn = "puu.ps"; break; case OPC_CMP_F_PS: case OPC_CMP_UN_PS: case OPC_CMP_EQ_PS: case OPC_CMP_UEQ_PS: case OPC_CMP_OLT_PS: case OPC_CMP_ULT_PS: case OPC_CMP_OLE_PS: case OPC_CMP_ULE_PS: case OPC_CMP_SF_PS: case OPC_CMP_NGLE_PS: case OPC_CMP_SEQ_PS: case OPC_CMP_NGL_PS: case OPC_CMP_LT_PS: case OPC_CMP_NGE_PS: case OPC_CMP_LE_PS: case OPC_CMP_NGT_PS: if (ctx->opcode & (1 << 6)) { gen_cmpabs_ps(ctx, func-48, ft, fs, cc); opn = condnames_abs[func-48]; } else { gen_cmp_ps(ctx, func-48, ft, fs, cc); opn = condnames[func-48]; } break; default: MIPS_INVAL(opn); generate_exception (ctx, EXCP_RI); return; } (void)opn; /* avoid a compiler warning */ switch (optype) { case BINOP: MIPS_DEBUG("%s %s, %s, %s", opn, fregnames[fd], fregnames[fs], fregnames[ft]); break; case CMPOP: MIPS_DEBUG("%s %s,%s", opn, fregnames[fs], fregnames[ft]); break; default: MIPS_DEBUG("%s %s,%s", opn, fregnames[fd], fregnames[fs]); break; } } /* Coprocessor 3 (FPU) */ static void gen_flt3_ldst (DisasContext *ctx, uint32_t opc, int fd, int fs, int base, int index) { const char *opn = "extended float load/store"; int store = 0; TCGv t0 = tcg_temp_new(); if (base == 0) { gen_load_gpr(t0, index); } else if (index == 0) { gen_load_gpr(t0, base); } else { gen_load_gpr(t0, index); gen_op_addr_add(ctx, t0, cpu_gpr[base], t0); } /* Don't do NOP if destination is zero: we must perform the actual memory access. */ save_cpu_state(ctx, 0); switch (opc) { case OPC_LWXC1: check_cop1x(ctx); { TCGv_i32 fp0 = tcg_temp_new_i32(); tcg_gen_qemu_ld32s(t0, t0, ctx->mem_idx); tcg_gen_trunc_tl_i32(fp0, t0); gen_store_fpr32(fp0, fd); tcg_temp_free_i32(fp0); } opn = "lwxc1"; break; case OPC_LDXC1: check_cop1x(ctx); check_cp1_registers(ctx, fd); { TCGv_i64 fp0 = tcg_temp_new_i64(); tcg_gen_qemu_ld64(fp0, t0, ctx->mem_idx); gen_store_fpr64(ctx, fp0, fd); tcg_temp_free_i64(fp0); } opn = "ldxc1"; break; case OPC_LUXC1: check_cp1_64bitmode(ctx); tcg_gen_andi_tl(t0, t0, ~0x7); { TCGv_i64 fp0 = tcg_temp_new_i64(); tcg_gen_qemu_ld64(fp0, t0, ctx->mem_idx); gen_store_fpr64(ctx, fp0, fd); tcg_temp_free_i64(fp0); } opn = "luxc1"; break; case OPC_SWXC1: check_cop1x(ctx); { TCGv_i32 fp0 = tcg_temp_new_i32(); TCGv t1 = tcg_temp_new(); gen_load_fpr32(fp0, fs); tcg_gen_extu_i32_tl(t1, fp0); tcg_gen_qemu_st32(t1, t0, ctx->mem_idx); tcg_temp_free_i32(fp0); tcg_temp_free(t1); } opn = "swxc1"; store = 1; break; case OPC_SDXC1: check_cop1x(ctx); check_cp1_registers(ctx, fs); { TCGv_i64 fp0 = tcg_temp_new_i64(); gen_load_fpr64(ctx, fp0, fs); tcg_gen_qemu_st64(fp0, t0, ctx->mem_idx); tcg_temp_free_i64(fp0); } opn = "sdxc1"; store = 1; break; case OPC_SUXC1: check_cp1_64bitmode(ctx); tcg_gen_andi_tl(t0, t0, ~0x7); { TCGv_i64 fp0 = tcg_temp_new_i64(); gen_load_fpr64(ctx, fp0, fs); tcg_gen_qemu_st64(fp0, t0, ctx->mem_idx); tcg_temp_free_i64(fp0); } opn = "suxc1"; store = 1; break; } tcg_temp_free(t0); (void)opn; (void)store; /* avoid compiler warnings */ MIPS_DEBUG("%s %s, %s(%s)", opn, fregnames[store ? fs : fd], regnames[index], regnames[base]); } static void gen_flt3_arith (DisasContext *ctx, uint32_t opc, int fd, int fr, int fs, int ft) { const char *opn = "flt3_arith"; switch (opc) { case OPC_ALNV_PS: check_cp1_64bitmode(ctx); { TCGv t0 = tcg_temp_local_new(); TCGv_i32 fp = tcg_temp_new_i32(); TCGv_i32 fph = tcg_temp_new_i32(); int l1 = gen_new_label(); int l2 = gen_new_label(); gen_load_gpr(t0, fr); tcg_gen_andi_tl(t0, t0, 0x7); tcg_gen_brcondi_tl(TCG_COND_NE, t0, 0, l1); gen_load_fpr32(fp, fs); gen_load_fpr32h(fph, fs); gen_store_fpr32(fp, fd); gen_store_fpr32h(fph, fd); tcg_gen_br(l2); gen_set_label(l1); tcg_gen_brcondi_tl(TCG_COND_NE, t0, 4, l2); tcg_temp_free(t0); #ifdef TARGET_WORDS_BIGENDIAN gen_load_fpr32(fp, fs); gen_load_fpr32h(fph, ft); gen_store_fpr32h(fp, fd); gen_store_fpr32(fph, fd); #else gen_load_fpr32h(fph, fs); gen_load_fpr32(fp, ft); gen_store_fpr32(fph, fd); gen_store_fpr32h(fp, fd); #endif gen_set_label(l2); tcg_temp_free_i32(fp); tcg_temp_free_i32(fph); } opn = "alnv.ps"; break; case OPC_MADD_S: check_cop1x(ctx); { TCGv_i32 fp0 = tcg_temp_new_i32(); TCGv_i32 fp1 = tcg_temp_new_i32(); TCGv_i32 fp2 = tcg_temp_new_i32(); gen_load_fpr32(fp0, fs); gen_load_fpr32(fp1, ft); gen_load_fpr32(fp2, fr); gen_helper_float_muladd_s(fp2, fp0, fp1, fp2); tcg_temp_free_i32(fp0); tcg_temp_free_i32(fp1); gen_store_fpr32(fp2, fd); tcg_temp_free_i32(fp2); } opn = "madd.s"; break; case OPC_MADD_D: check_cop1x(ctx); check_cp1_registers(ctx, fd | fs | ft | fr); { TCGv_i64 fp0 = tcg_temp_new_i64(); TCGv_i64 fp1 = tcg_temp_new_i64(); TCGv_i64 fp2 = tcg_temp_new_i64(); gen_load_fpr64(ctx, fp0, fs); gen_load_fpr64(ctx, fp1, ft); gen_load_fpr64(ctx, fp2, fr); gen_helper_float_muladd_d(fp2, fp0, fp1, fp2); tcg_temp_free_i64(fp0); tcg_temp_free_i64(fp1); gen_store_fpr64(ctx, fp2, fd); tcg_temp_free_i64(fp2); } opn = "madd.d"; break; case OPC_MADD_PS: check_cp1_64bitmode(ctx); { TCGv_i64 fp0 = tcg_temp_new_i64(); TCGv_i64 fp1 = tcg_temp_new_i64(); TCGv_i64 fp2 = tcg_temp_new_i64(); gen_load_fpr64(ctx, fp0, fs); gen_load_fpr64(ctx, fp1, ft); gen_load_fpr64(ctx, fp2, fr); gen_helper_float_muladd_ps(fp2, fp0, fp1, fp2); tcg_temp_free_i64(fp0); tcg_temp_free_i64(fp1); gen_store_fpr64(ctx, fp2, fd); tcg_temp_free_i64(fp2); } opn = "madd.ps"; break; case OPC_MSUB_S: check_cop1x(ctx); { TCGv_i32 fp0 = tcg_temp_new_i32(); TCGv_i32 fp1 = tcg_temp_new_i32(); TCGv_i32 fp2 = tcg_temp_new_i32(); gen_load_fpr32(fp0, fs); gen_load_fpr32(fp1, ft); gen_load_fpr32(fp2, fr); gen_helper_float_mulsub_s(fp2, fp0, fp1, fp2); tcg_temp_free_i32(fp0); tcg_temp_free_i32(fp1); gen_store_fpr32(fp2, fd); tcg_temp_free_i32(fp2); } opn = "msub.s"; break; case OPC_MSUB_D: check_cop1x(ctx); check_cp1_registers(ctx, fd | fs | ft | fr); { TCGv_i64 fp0 = tcg_temp_new_i64(); TCGv_i64 fp1 = tcg_temp_new_i64(); TCGv_i64 fp2 = tcg_temp_new_i64(); gen_load_fpr64(ctx, fp0, fs); gen_load_fpr64(ctx, fp1, ft); gen_load_fpr64(ctx, fp2, fr); gen_helper_float_mulsub_d(fp2, fp0, fp1, fp2); tcg_temp_free_i64(fp0); tcg_temp_free_i64(fp1); gen_store_fpr64(ctx, fp2, fd); tcg_temp_free_i64(fp2); } opn = "msub.d"; break; case OPC_MSUB_PS: check_cp1_64bitmode(ctx); { TCGv_i64 fp0 = tcg_temp_new_i64(); TCGv_i64 fp1 = tcg_temp_new_i64(); TCGv_i64 fp2 = tcg_temp_new_i64(); gen_load_fpr64(ctx, fp0, fs); gen_load_fpr64(ctx, fp1, ft); gen_load_fpr64(ctx, fp2, fr); gen_helper_float_mulsub_ps(fp2, fp0, fp1, fp2); tcg_temp_free_i64(fp0); tcg_temp_free_i64(fp1); gen_store_fpr64(ctx, fp2, fd); tcg_temp_free_i64(fp2); } opn = "msub.ps"; break; case OPC_NMADD_S: check_cop1x(ctx); { TCGv_i32 fp0 = tcg_temp_new_i32(); TCGv_i32 fp1 = tcg_temp_new_i32(); TCGv_i32 fp2 = tcg_temp_new_i32(); gen_load_fpr32(fp0, fs); gen_load_fpr32(fp1, ft); gen_load_fpr32(fp2, fr); gen_helper_float_nmuladd_s(fp2, fp0, fp1, fp2); tcg_temp_free_i32(fp0); tcg_temp_free_i32(fp1); gen_store_fpr32(fp2, fd); tcg_temp_free_i32(fp2); } opn = "nmadd.s"; break; case OPC_NMADD_D: check_cop1x(ctx); check_cp1_registers(ctx, fd | fs | ft | fr); { TCGv_i64 fp0 = tcg_temp_new_i64(); TCGv_i64 fp1 = tcg_temp_new_i64(); TCGv_i64 fp2 = tcg_temp_new_i64(); gen_load_fpr64(ctx, fp0, fs); gen_load_fpr64(ctx, fp1, ft); gen_load_fpr64(ctx, fp2, fr); gen_helper_float_nmuladd_d(fp2, fp0, fp1, fp2); tcg_temp_free_i64(fp0); tcg_temp_free_i64(fp1); gen_store_fpr64(ctx, fp2, fd); tcg_temp_free_i64(fp2); } opn = "nmadd.d"; break; case OPC_NMADD_PS: check_cp1_64bitmode(ctx); { TCGv_i64 fp0 = tcg_temp_new_i64(); TCGv_i64 fp1 = tcg_temp_new_i64(); TCGv_i64 fp2 = tcg_temp_new_i64(); gen_load_fpr64(ctx, fp0, fs); gen_load_fpr64(ctx, fp1, ft); gen_load_fpr64(ctx, fp2, fr); gen_helper_float_nmuladd_ps(fp2, fp0, fp1, fp2); tcg_temp_free_i64(fp0); tcg_temp_free_i64(fp1); gen_store_fpr64(ctx, fp2, fd); tcg_temp_free_i64(fp2); } opn = "nmadd.ps"; break; case OPC_NMSUB_S: check_cop1x(ctx); { TCGv_i32 fp0 = tcg_temp_new_i32(); TCGv_i32 fp1 = tcg_temp_new_i32(); TCGv_i32 fp2 = tcg_temp_new_i32(); gen_load_fpr32(fp0, fs); gen_load_fpr32(fp1, ft); gen_load_fpr32(fp2, fr); gen_helper_float_nmulsub_s(fp2, fp0, fp1, fp2); tcg_temp_free_i32(fp0); tcg_temp_free_i32(fp1); gen_store_fpr32(fp2, fd); tcg_temp_free_i32(fp2); } opn = "nmsub.s"; break; case OPC_NMSUB_D: check_cop1x(ctx); check_cp1_registers(ctx, fd | fs | ft | fr); { TCGv_i64 fp0 = tcg_temp_new_i64(); TCGv_i64 fp1 = tcg_temp_new_i64(); TCGv_i64 fp2 = tcg_temp_new_i64(); gen_load_fpr64(ctx, fp0, fs); gen_load_fpr64(ctx, fp1, ft); gen_load_fpr64(ctx, fp2, fr); gen_helper_float_nmulsub_d(fp2, fp0, fp1, fp2); tcg_temp_free_i64(fp0); tcg_temp_free_i64(fp1); gen_store_fpr64(ctx, fp2, fd); tcg_temp_free_i64(fp2); } opn = "nmsub.d"; break; case OPC_NMSUB_PS: check_cp1_64bitmode(ctx); { TCGv_i64 fp0 = tcg_temp_new_i64(); TCGv_i64 fp1 = tcg_temp_new_i64(); TCGv_i64 fp2 = tcg_temp_new_i64(); gen_load_fpr64(ctx, fp0, fs); gen_load_fpr64(ctx, fp1, ft); gen_load_fpr64(ctx, fp2, fr); gen_helper_float_nmulsub_ps(fp2, fp0, fp1, fp2); tcg_temp_free_i64(fp0); tcg_temp_free_i64(fp1); gen_store_fpr64(ctx, fp2, fd); tcg_temp_free_i64(fp2); } opn = "nmsub.ps"; break; default: MIPS_INVAL(opn); generate_exception (ctx, EXCP_RI); return; } (void)opn; /* avoid a compiler warning */ MIPS_DEBUG("%s %s, %s, %s, %s", opn, fregnames[fd], fregnames[fr], fregnames[fs], fregnames[ft]); } static void gen_rdhwr (CPUState *env, DisasContext *ctx, int rt, int rd) { TCGv t0; check_insn(env, ctx, ISA_MIPS32R2); t0 = tcg_temp_new(); switch (rd) { case 0: save_cpu_state(ctx, 1); gen_helper_rdhwr_cpunum(t0); gen_store_gpr(t0, rt); break; case 1: save_cpu_state(ctx, 1); gen_helper_rdhwr_synci_step(t0); gen_store_gpr(t0, rt); break; case 2: save_cpu_state(ctx, 1); gen_helper_rdhwr_cc(t0); gen_store_gpr(t0, rt); break; case 3: save_cpu_state(ctx, 1); gen_helper_rdhwr_ccres(t0); gen_store_gpr(t0, rt); break; case 29: #if defined(CONFIG_USER_ONLY) tcg_gen_ld_tl(t0, cpu_env, offsetof(CPUState, tls_value)); gen_store_gpr(t0, rt); break; #else /* XXX: Some CPUs implement this in hardware. Not supported yet. */ #endif default: /* Invalid */ MIPS_INVAL("rdhwr"); generate_exception(ctx, EXCP_RI); break; } tcg_temp_free(t0); } static void handle_delay_slot (CPUState *env, DisasContext *ctx, int insn_bytes) { if (ctx->hflags & MIPS_HFLAG_BMASK) { int proc_hflags = ctx->hflags & MIPS_HFLAG_BMASK; /* Branches completion */ ctx->hflags &= ~MIPS_HFLAG_BMASK; ctx->bstate = BS_BRANCH; save_cpu_state(ctx, 0); /* FIXME: Need to clear can_do_io. */ switch (proc_hflags & MIPS_HFLAG_BMASK_BASE) { case MIPS_HFLAG_B: /* unconditional branch */ MIPS_DEBUG("unconditional branch"); if (proc_hflags & MIPS_HFLAG_BX) { tcg_gen_xori_i32(hflags, hflags, MIPS_HFLAG_M16); } gen_goto_tb(ctx, 0, ctx->btarget); break; case MIPS_HFLAG_BL: /* blikely taken case */ MIPS_DEBUG("blikely branch taken"); gen_goto_tb(ctx, 0, ctx->btarget); break; case MIPS_HFLAG_BC: /* Conditional branch */ MIPS_DEBUG("conditional branch"); { int l1 = gen_new_label(); tcg_gen_brcondi_tl(TCG_COND_NE, bcond, 0, l1); gen_goto_tb(ctx, 1, ctx->pc + insn_bytes); gen_set_label(l1); gen_goto_tb(ctx, 0, ctx->btarget); } break; case MIPS_HFLAG_BR: /* unconditional branch to register */ MIPS_DEBUG("branch to register"); if (env->insn_flags & (ASE_MIPS16 | ASE_MICROMIPS)) { TCGv t0 = tcg_temp_new(); TCGv_i32 t1 = tcg_temp_new_i32(); tcg_gen_andi_tl(t0, btarget, 0x1); tcg_gen_trunc_tl_i32(t1, t0); tcg_temp_free(t0); tcg_gen_andi_i32(hflags, hflags, ~(uint32_t)MIPS_HFLAG_M16); tcg_gen_shli_i32(t1, t1, MIPS_HFLAG_M16_SHIFT); tcg_gen_or_i32(hflags, hflags, t1); tcg_temp_free_i32(t1); tcg_gen_andi_tl(cpu_PC, btarget, ~(target_ulong)0x1); } else { tcg_gen_mov_tl(cpu_PC, btarget); } if (ctx->singlestep_enabled) { save_cpu_state(ctx, 0); gen_helper_0i(raise_exception, EXCP_DEBUG); } tcg_gen_exit_tb(0); break; default: MIPS_DEBUG("unknown branch"); break; } } } /* ISA extensions (ASEs) */ /* MIPS16 extension to MIPS32 */ /* MIPS16 major opcodes */ enum { M16_OPC_ADDIUSP = 0x00, M16_OPC_ADDIUPC = 0x01, M16_OPC_B = 0x02, M16_OPC_JAL = 0x03, M16_OPC_BEQZ = 0x04, M16_OPC_BNEQZ = 0x05, M16_OPC_SHIFT = 0x06, M16_OPC_LD = 0x07, M16_OPC_RRIA = 0x08, M16_OPC_ADDIU8 = 0x09, M16_OPC_SLTI = 0x0a, M16_OPC_SLTIU = 0x0b, M16_OPC_I8 = 0x0c, M16_OPC_LI = 0x0d, M16_OPC_CMPI = 0x0e, M16_OPC_SD = 0x0f, M16_OPC_LB = 0x10, M16_OPC_LH = 0x11, M16_OPC_LWSP = 0x12, M16_OPC_LW = 0x13, M16_OPC_LBU = 0x14, M16_OPC_LHU = 0x15, M16_OPC_LWPC = 0x16, M16_OPC_LWU = 0x17, M16_OPC_SB = 0x18, M16_OPC_SH = 0x19, M16_OPC_SWSP = 0x1a, M16_OPC_SW = 0x1b, M16_OPC_RRR = 0x1c, M16_OPC_RR = 0x1d, M16_OPC_EXTEND = 0x1e, M16_OPC_I64 = 0x1f }; /* I8 funct field */ enum { I8_BTEQZ = 0x0, I8_BTNEZ = 0x1, I8_SWRASP = 0x2, I8_ADJSP = 0x3, I8_SVRS = 0x4, I8_MOV32R = 0x5, I8_MOVR32 = 0x7 }; /* RRR f field */ enum { RRR_DADDU = 0x0, RRR_ADDU = 0x1, RRR_DSUBU = 0x2, RRR_SUBU = 0x3 }; /* RR funct field */ enum { RR_JR = 0x00, RR_SDBBP = 0x01, RR_SLT = 0x02, RR_SLTU = 0x03, RR_SLLV = 0x04, RR_BREAK = 0x05, RR_SRLV = 0x06, RR_SRAV = 0x07, RR_DSRL = 0x08, RR_CMP = 0x0a, RR_NEG = 0x0b, RR_AND = 0x0c, RR_OR = 0x0d, RR_XOR = 0x0e, RR_NOT = 0x0f, RR_MFHI = 0x10, RR_CNVT = 0x11, RR_MFLO = 0x12, RR_DSRA = 0x13, RR_DSLLV = 0x14, RR_DSRLV = 0x16, RR_DSRAV = 0x17, RR_MULT = 0x18, RR_MULTU = 0x19, RR_DIV = 0x1a, RR_DIVU = 0x1b, RR_DMULT = 0x1c, RR_DMULTU = 0x1d, RR_DDIV = 0x1e, RR_DDIVU = 0x1f }; /* I64 funct field */ enum { I64_LDSP = 0x0, I64_SDSP = 0x1, I64_SDRASP = 0x2, I64_DADJSP = 0x3, I64_LDPC = 0x4, I64_DADDIU5 = 0x5, I64_DADDIUPC = 0x6, I64_DADDIUSP = 0x7 }; /* RR ry field for CNVT */ enum { RR_RY_CNVT_ZEB = 0x0, RR_RY_CNVT_ZEH = 0x1, RR_RY_CNVT_ZEW = 0x2, RR_RY_CNVT_SEB = 0x4, RR_RY_CNVT_SEH = 0x5, RR_RY_CNVT_SEW = 0x6, }; static int xlat (int r) { static int map[] = { 16, 17, 2, 3, 4, 5, 6, 7 }; return map[r]; } static void gen_mips16_save (DisasContext *ctx, int xsregs, int aregs, int do_ra, int do_s0, int do_s1, int framesize) { TCGv t0 = tcg_temp_new(); TCGv t1 = tcg_temp_new(); int args, astatic; switch (aregs) { case 0: case 1: case 2: case 3: case 11: args = 0; break; case 4: case 5: case 6: case 7: args = 1; break; case 8: case 9: case 10: args = 2; break; case 12: case 13: args = 3; break; case 14: args = 4; break; default: generate_exception(ctx, EXCP_RI); return; } switch (args) { case 4: gen_base_offset_addr(ctx, t0, 29, 12); gen_load_gpr(t1, 7); op_st_sw(t1, t0, ctx); /* Fall through */ case 3: gen_base_offset_addr(ctx, t0, 29, 8); gen_load_gpr(t1, 6); op_st_sw(t1, t0, ctx); /* Fall through */ case 2: gen_base_offset_addr(ctx, t0, 29, 4); gen_load_gpr(t1, 5); op_st_sw(t1, t0, ctx); /* Fall through */ case 1: gen_base_offset_addr(ctx, t0, 29, 0); gen_load_gpr(t1, 4); op_st_sw(t1, t0, ctx); } gen_load_gpr(t0, 29); #define DECR_AND_STORE(reg) do { \ tcg_gen_subi_tl(t0, t0, 4); \ gen_load_gpr(t1, reg); \ op_st_sw(t1, t0, ctx); \ } while (0) if (do_ra) { DECR_AND_STORE(31); } switch (xsregs) { case 7: DECR_AND_STORE(30); /* Fall through */ case 6: DECR_AND_STORE(23); /* Fall through */ case 5: DECR_AND_STORE(22); /* Fall through */ case 4: DECR_AND_STORE(21); /* Fall through */ case 3: DECR_AND_STORE(20); /* Fall through */ case 2: DECR_AND_STORE(19); /* Fall through */ case 1: DECR_AND_STORE(18); } if (do_s1) { DECR_AND_STORE(17); } if (do_s0) { DECR_AND_STORE(16); } switch (aregs) { case 0: case 4: case 8: case 12: case 14: astatic = 0; break; case 1: case 5: case 9: case 13: astatic = 1; break; case 2: case 6: case 10: astatic = 2; break; case 3: case 7: astatic = 3; break; case 11: astatic = 4; break; default: generate_exception(ctx, EXCP_RI); return; } if (astatic > 0) { DECR_AND_STORE(7); if (astatic > 1) { DECR_AND_STORE(6); if (astatic > 2) { DECR_AND_STORE(5); if (astatic > 3) { DECR_AND_STORE(4); } } } } #undef DECR_AND_STORE tcg_gen_subi_tl(cpu_gpr[29], cpu_gpr[29], framesize); tcg_temp_free(t0); tcg_temp_free(t1); } static void gen_mips16_restore (DisasContext *ctx, int xsregs, int aregs, int do_ra, int do_s0, int do_s1, int framesize) { int astatic; TCGv t0 = tcg_temp_new(); TCGv t1 = tcg_temp_new(); tcg_gen_addi_tl(t0, cpu_gpr[29], framesize); #define DECR_AND_LOAD(reg) do { \ tcg_gen_subi_tl(t0, t0, 4); \ op_ld_lw(t1, t0, ctx); \ gen_store_gpr(t1, reg); \ } while (0) if (do_ra) { DECR_AND_LOAD(31); } switch (xsregs) { case 7: DECR_AND_LOAD(30); /* Fall through */ case 6: DECR_AND_LOAD(23); /* Fall through */ case 5: DECR_AND_LOAD(22); /* Fall through */ case 4: DECR_AND_LOAD(21); /* Fall through */ case 3: DECR_AND_LOAD(20); /* Fall through */ case 2: DECR_AND_LOAD(19); /* Fall through */ case 1: DECR_AND_LOAD(18); } if (do_s1) { DECR_AND_LOAD(17); } if (do_s0) { DECR_AND_LOAD(16); } switch (aregs) { case 0: case 4: case 8: case 12: case 14: astatic = 0; break; case 1: case 5: case 9: case 13: astatic = 1; break; case 2: case 6: case 10: astatic = 2; break; case 3: case 7: astatic = 3; break; case 11: astatic = 4; break; default: generate_exception(ctx, EXCP_RI); return; } if (astatic > 0) { DECR_AND_LOAD(7); if (astatic > 1) { DECR_AND_LOAD(6); if (astatic > 2) { DECR_AND_LOAD(5); if (astatic > 3) { DECR_AND_LOAD(4); } } } } #undef DECR_AND_LOAD tcg_gen_addi_tl(cpu_gpr[29], cpu_gpr[29], framesize); tcg_temp_free(t0); tcg_temp_free(t1); } static void gen_addiupc (DisasContext *ctx, int rx, int imm, int is_64_bit, int extended) { TCGv t0; if (extended && (ctx->hflags & MIPS_HFLAG_BMASK)) { generate_exception(ctx, EXCP_RI); return; } t0 = tcg_temp_new(); tcg_gen_movi_tl(t0, pc_relative_pc(ctx)); tcg_gen_addi_tl(cpu_gpr[rx], t0, imm); if (!is_64_bit) { tcg_gen_ext32s_tl(cpu_gpr[rx], cpu_gpr[rx]); } tcg_temp_free(t0); } #if defined(TARGET_MIPS64) static void decode_i64_mips16 (CPUState *env, DisasContext *ctx, int ry, int funct, int16_t offset, int extended) { switch (funct) { case I64_LDSP: check_mips_64(ctx); offset = extended ? offset : offset << 3; gen_ld(env, ctx, OPC_LD, ry, 29, offset); break; case I64_SDSP: check_mips_64(ctx); offset = extended ? offset : offset << 3; gen_st(ctx, OPC_SD, ry, 29, offset); break; case I64_SDRASP: check_mips_64(ctx); offset = extended ? offset : (ctx->opcode & 0xff) << 3; gen_st(ctx, OPC_SD, 31, 29, offset); break; case I64_DADJSP: check_mips_64(ctx); offset = extended ? offset : ((int8_t)ctx->opcode) << 3; gen_arith_imm(env, ctx, OPC_DADDIU, 29, 29, offset); break; case I64_LDPC: if (extended && (ctx->hflags & MIPS_HFLAG_BMASK)) { generate_exception(ctx, EXCP_RI); } else { offset = extended ? offset : offset << 3; gen_ld(env, ctx, OPC_LDPC, ry, 0, offset); } break; case I64_DADDIU5: check_mips_64(ctx); offset = extended ? offset : ((int8_t)(offset << 3)) >> 3; gen_arith_imm(env, ctx, OPC_DADDIU, ry, ry, offset); break; case I64_DADDIUPC: check_mips_64(ctx); offset = extended ? offset : offset << 2; gen_addiupc(ctx, ry, offset, 1, extended); break; case I64_DADDIUSP: check_mips_64(ctx); offset = extended ? offset : offset << 2; gen_arith_imm(env, ctx, OPC_DADDIU, ry, 29, offset); break; } } #endif static int decode_extended_mips16_opc (CPUState *env, DisasContext *ctx, int *is_branch) { int extend = lduw_code(ctx->pc + 2); int op, rx, ry, funct, sa; int16_t imm, offset; ctx->opcode = (ctx->opcode << 16) | extend; op = (ctx->opcode >> 11) & 0x1f; sa = (ctx->opcode >> 22) & 0x1f; funct = (ctx->opcode >> 8) & 0x7; rx = xlat((ctx->opcode >> 8) & 0x7); ry = xlat((ctx->opcode >> 5) & 0x7); offset = imm = (int16_t) (((ctx->opcode >> 16) & 0x1f) << 11 | ((ctx->opcode >> 21) & 0x3f) << 5 | (ctx->opcode & 0x1f)); /* The extended opcodes cleverly reuse the opcodes from their 16-bit counterparts. */ switch (op) { case M16_OPC_ADDIUSP: gen_arith_imm(env, ctx, OPC_ADDIU, rx, 29, imm); break; case M16_OPC_ADDIUPC: gen_addiupc(ctx, rx, imm, 0, 1); break; case M16_OPC_B: gen_compute_branch(ctx, OPC_BEQ, 4, 0, 0, offset << 1); /* No delay slot, so just process as a normal instruction */ break; case M16_OPC_BEQZ: gen_compute_branch(ctx, OPC_BEQ, 4, rx, 0, offset << 1); /* No delay slot, so just process as a normal instruction */ break; case M16_OPC_BNEQZ: gen_compute_branch(ctx, OPC_BNE, 4, rx, 0, offset << 1); /* No delay slot, so just process as a normal instruction */ break; case M16_OPC_SHIFT: switch (ctx->opcode & 0x3) { case 0x0: gen_shift_imm(env, ctx, OPC_SLL, rx, ry, sa); break; case 0x1: #if defined(TARGET_MIPS64) check_mips_64(ctx); gen_shift_imm(env, ctx, OPC_DSLL, rx, ry, sa); #else generate_exception(ctx, EXCP_RI); #endif break; case 0x2: gen_shift_imm(env, ctx, OPC_SRL, rx, ry, sa); break; case 0x3: gen_shift_imm(env, ctx, OPC_SRA, rx, ry, sa); break; } break; #if defined(TARGET_MIPS64) case M16_OPC_LD: check_mips_64(ctx); gen_ld(env, ctx, OPC_LD, ry, rx, offset); break; #endif case M16_OPC_RRIA: imm = ctx->opcode & 0xf; imm = imm | ((ctx->opcode >> 20) & 0x7f) << 4; imm = imm | ((ctx->opcode >> 16) & 0xf) << 11; imm = (int16_t) (imm << 1) >> 1; if ((ctx->opcode >> 4) & 0x1) { #if defined(TARGET_MIPS64) check_mips_64(ctx); gen_arith_imm(env, ctx, OPC_DADDIU, ry, rx, imm); #else generate_exception(ctx, EXCP_RI); #endif } else { gen_arith_imm(env, ctx, OPC_ADDIU, ry, rx, imm); } break; case M16_OPC_ADDIU8: gen_arith_imm(env, ctx, OPC_ADDIU, rx, rx, imm); break; case M16_OPC_SLTI: gen_slt_imm(env, OPC_SLTI, 24, rx, imm); break; case M16_OPC_SLTIU: gen_slt_imm(env, OPC_SLTIU, 24, rx, imm); break; case M16_OPC_I8: switch (funct) { case I8_BTEQZ: gen_compute_branch(ctx, OPC_BEQ, 4, 24, 0, offset << 1); break; case I8_BTNEZ: gen_compute_branch(ctx, OPC_BNE, 4, 24, 0, offset << 1); break; case I8_SWRASP: gen_st(ctx, OPC_SW, 31, 29, imm); break; case I8_ADJSP: gen_arith_imm(env, ctx, OPC_ADDIU, 29, 29, imm); break; case I8_SVRS: { int xsregs = (ctx->opcode >> 24) & 0x7; int aregs = (ctx->opcode >> 16) & 0xf; int do_ra = (ctx->opcode >> 6) & 0x1; int do_s0 = (ctx->opcode >> 5) & 0x1; int do_s1 = (ctx->opcode >> 4) & 0x1; int framesize = (((ctx->opcode >> 20) & 0xf) << 4 | (ctx->opcode & 0xf)) << 3; if (ctx->opcode & (1 << 7)) { gen_mips16_save(ctx, xsregs, aregs, do_ra, do_s0, do_s1, framesize); } else { gen_mips16_restore(ctx, xsregs, aregs, do_ra, do_s0, do_s1, framesize); } } break; default: generate_exception(ctx, EXCP_RI); break; } break; case M16_OPC_LI: tcg_gen_movi_tl(cpu_gpr[rx], (uint16_t) imm); break; case M16_OPC_CMPI: tcg_gen_xori_tl(cpu_gpr[24], cpu_gpr[rx], (uint16_t) imm); break; #if defined(TARGET_MIPS64) case M16_OPC_SD: gen_st(ctx, OPC_SD, ry, rx, offset); break; #endif case M16_OPC_LB: gen_ld(env, ctx, OPC_LB, ry, rx, offset); break; case M16_OPC_LH: gen_ld(env, ctx, OPC_LH, ry, rx, offset); break; case M16_OPC_LWSP: gen_ld(env, ctx, OPC_LW, rx, 29, offset); break; case M16_OPC_LW: gen_ld(env, ctx, OPC_LW, ry, rx, offset); break; case M16_OPC_LBU: gen_ld(env, ctx, OPC_LBU, ry, rx, offset); break; case M16_OPC_LHU: gen_ld(env, ctx, OPC_LHU, ry, rx, offset); break; case M16_OPC_LWPC: gen_ld(env, ctx, OPC_LWPC, rx, 0, offset); break; #if defined(TARGET_MIPS64) case M16_OPC_LWU: gen_ld(env, ctx, OPC_LWU, ry, rx, offset); break; #endif case M16_OPC_SB: gen_st(ctx, OPC_SB, ry, rx, offset); break; case M16_OPC_SH: gen_st(ctx, OPC_SH, ry, rx, offset); break; case M16_OPC_SWSP: gen_st(ctx, OPC_SW, rx, 29, offset); break; case M16_OPC_SW: gen_st(ctx, OPC_SW, ry, rx, offset); break; #if defined(TARGET_MIPS64) case M16_OPC_I64: decode_i64_mips16(env, ctx, ry, funct, offset, 1); break; #endif default: generate_exception(ctx, EXCP_RI); break; } return 4; } static int decode_mips16_opc (CPUState *env, DisasContext *ctx, int *is_branch) { int rx, ry; int sa; int op, cnvt_op, op1, offset; int funct; int n_bytes; op = (ctx->opcode >> 11) & 0x1f; sa = (ctx->opcode >> 2) & 0x7; sa = sa == 0 ? 8 : sa; rx = xlat((ctx->opcode >> 8) & 0x7); cnvt_op = (ctx->opcode >> 5) & 0x7; ry = xlat((ctx->opcode >> 5) & 0x7); op1 = offset = ctx->opcode & 0x1f; n_bytes = 2; switch (op) { case M16_OPC_ADDIUSP: { int16_t imm = ((uint8_t) ctx->opcode) << 2; gen_arith_imm(env, ctx, OPC_ADDIU, rx, 29, imm); } break; case M16_OPC_ADDIUPC: gen_addiupc(ctx, rx, ((uint8_t) ctx->opcode) << 2, 0, 0); break; case M16_OPC_B: offset = (ctx->opcode & 0x7ff) << 1; offset = (int16_t)(offset << 4) >> 4; gen_compute_branch(ctx, OPC_BEQ, 2, 0, 0, offset); /* No delay slot, so just process as a normal instruction */ break; case M16_OPC_JAL: offset = lduw_code(ctx->pc + 2); offset = (((ctx->opcode & 0x1f) << 21) | ((ctx->opcode >> 5) & 0x1f) << 16 | offset) << 2; op = ((ctx->opcode >> 10) & 0x1) ? OPC_JALXS : OPC_JALS; gen_compute_branch(ctx, op, 4, rx, ry, offset); n_bytes = 4; *is_branch = 1; break; case M16_OPC_BEQZ: gen_compute_branch(ctx, OPC_BEQ, 2, rx, 0, ((int8_t)ctx->opcode) << 1); /* No delay slot, so just process as a normal instruction */ break; case M16_OPC_BNEQZ: gen_compute_branch(ctx, OPC_BNE, 2, rx, 0, ((int8_t)ctx->opcode) << 1); /* No delay slot, so just process as a normal instruction */ break; case M16_OPC_SHIFT: switch (ctx->opcode & 0x3) { case 0x0: gen_shift_imm(env, ctx, OPC_SLL, rx, ry, sa); break; case 0x1: #if defined(TARGET_MIPS64) check_mips_64(ctx); gen_shift_imm(env, ctx, OPC_DSLL, rx, ry, sa); #else generate_exception(ctx, EXCP_RI); #endif break; case 0x2: gen_shift_imm(env, ctx, OPC_SRL, rx, ry, sa); break; case 0x3: gen_shift_imm(env, ctx, OPC_SRA, rx, ry, sa); break; } break; #if defined(TARGET_MIPS64) case M16_OPC_LD: check_mips_64(ctx); gen_ld(env, ctx, OPC_LD, ry, rx, offset << 3); break; #endif case M16_OPC_RRIA: { int16_t imm = (int8_t)((ctx->opcode & 0xf) << 4) >> 4; if ((ctx->opcode >> 4) & 1) { #if defined(TARGET_MIPS64) check_mips_64(ctx); gen_arith_imm(env, ctx, OPC_DADDIU, ry, rx, imm); #else generate_exception(ctx, EXCP_RI); #endif } else { gen_arith_imm(env, ctx, OPC_ADDIU, ry, rx, imm); } } break; case M16_OPC_ADDIU8: { int16_t imm = (int8_t) ctx->opcode; gen_arith_imm(env, ctx, OPC_ADDIU, rx, rx, imm); } break; case M16_OPC_SLTI: { int16_t imm = (uint8_t) ctx->opcode; gen_slt_imm(env, OPC_SLTI, 24, rx, imm); } break; case M16_OPC_SLTIU: { int16_t imm = (uint8_t) ctx->opcode; gen_slt_imm(env, OPC_SLTIU, 24, rx, imm); } break; case M16_OPC_I8: { int reg32; funct = (ctx->opcode >> 8) & 0x7; switch (funct) { case I8_BTEQZ: gen_compute_branch(ctx, OPC_BEQ, 2, 24, 0, ((int8_t)ctx->opcode) << 1); break; case I8_BTNEZ: gen_compute_branch(ctx, OPC_BNE, 2, 24, 0, ((int8_t)ctx->opcode) << 1); break; case I8_SWRASP: gen_st(ctx, OPC_SW, 31, 29, (ctx->opcode & 0xff) << 2); break; case I8_ADJSP: gen_arith_imm(env, ctx, OPC_ADDIU, 29, 29, ((int8_t)ctx->opcode) << 3); break; case I8_SVRS: { int do_ra = ctx->opcode & (1 << 6); int do_s0 = ctx->opcode & (1 << 5); int do_s1 = ctx->opcode & (1 << 4); int framesize = ctx->opcode & 0xf; if (framesize == 0) { framesize = 128; } else { framesize = framesize << 3; } if (ctx->opcode & (1 << 7)) { gen_mips16_save(ctx, 0, 0, do_ra, do_s0, do_s1, framesize); } else { gen_mips16_restore(ctx, 0, 0, do_ra, do_s0, do_s1, framesize); } } break; case I8_MOV32R: { int rz = xlat(ctx->opcode & 0x7); reg32 = (((ctx->opcode >> 3) & 0x3) << 3) | ((ctx->opcode >> 5) & 0x7); gen_arith(env, ctx, OPC_ADDU, reg32, rz, 0); } break; case I8_MOVR32: reg32 = ctx->opcode & 0x1f; gen_arith(env, ctx, OPC_ADDU, ry, reg32, 0); break; default: generate_exception(ctx, EXCP_RI); break; } } break; case M16_OPC_LI: { int16_t imm = (uint8_t) ctx->opcode; gen_arith_imm(env, ctx, OPC_ADDIU, rx, 0, imm); } break; case M16_OPC_CMPI: { int16_t imm = (uint8_t) ctx->opcode; gen_logic_imm(env, OPC_XORI, 24, rx, imm); } break; #if defined(TARGET_MIPS64) case M16_OPC_SD: check_mips_64(ctx); gen_st(ctx, OPC_SD, ry, rx, offset << 3); break; #endif case M16_OPC_LB: gen_ld(env, ctx, OPC_LB, ry, rx, offset); break; case M16_OPC_LH: gen_ld(env, ctx, OPC_LH, ry, rx, offset << 1); break; case M16_OPC_LWSP: gen_ld(env, ctx, OPC_LW, rx, 29, ((uint8_t)ctx->opcode) << 2); break; case M16_OPC_LW: gen_ld(env, ctx, OPC_LW, ry, rx, offset << 2); break; case M16_OPC_LBU: gen_ld(env, ctx, OPC_LBU, ry, rx, offset); break; case M16_OPC_LHU: gen_ld(env, ctx, OPC_LHU, ry, rx, offset << 1); break; case M16_OPC_LWPC: gen_ld(env, ctx, OPC_LWPC, rx, 0, ((uint8_t)ctx->opcode) << 2); break; #if defined (TARGET_MIPS64) case M16_OPC_LWU: check_mips_64(ctx); gen_ld(env, ctx, OPC_LWU, ry, rx, offset << 2); break; #endif case M16_OPC_SB: gen_st(ctx, OPC_SB, ry, rx, offset); break; case M16_OPC_SH: gen_st(ctx, OPC_SH, ry, rx, offset << 1); break; case M16_OPC_SWSP: gen_st(ctx, OPC_SW, rx, 29, ((uint8_t)ctx->opcode) << 2); break; case M16_OPC_SW: gen_st(ctx, OPC_SW, ry, rx, offset << 2); break; case M16_OPC_RRR: { int rz = xlat((ctx->opcode >> 2) & 0x7); int mips32_op; switch (ctx->opcode & 0x3) { case RRR_ADDU: mips32_op = OPC_ADDU; break; case RRR_SUBU: mips32_op = OPC_SUBU; break; #if defined(TARGET_MIPS64) case RRR_DADDU: mips32_op = OPC_DADDU; check_mips_64(ctx); break; case RRR_DSUBU: mips32_op = OPC_DSUBU; check_mips_64(ctx); break; #endif default: generate_exception(ctx, EXCP_RI); goto done; } gen_arith(env, ctx, mips32_op, rz, rx, ry); done: ; } break; case M16_OPC_RR: switch (op1) { case RR_JR: { int nd = (ctx->opcode >> 7) & 0x1; int link = (ctx->opcode >> 6) & 0x1; int ra = (ctx->opcode >> 5) & 0x1; if (link) { op = nd ? OPC_JALRC : OPC_JALRS; } else { op = OPC_JR; } gen_compute_branch(ctx, op, 2, ra ? 31 : rx, 31, 0); if (!nd) { *is_branch = 1; } } break; case RR_SDBBP: /* XXX: not clear which exception should be raised * when in debug mode... */ check_insn(env, ctx, ISA_MIPS32); if (!(ctx->hflags & MIPS_HFLAG_DM)) { generate_exception(ctx, EXCP_DBp); } else { generate_exception(ctx, EXCP_DBp); } break; case RR_SLT: gen_slt(env, OPC_SLT, 24, rx, ry); break; case RR_SLTU: gen_slt(env, OPC_SLTU, 24, rx, ry); break; case RR_BREAK: generate_exception(ctx, EXCP_BREAK); break; case RR_SLLV: gen_shift(env, ctx, OPC_SLLV, ry, rx, ry); break; case RR_SRLV: gen_shift(env, ctx, OPC_SRLV, ry, rx, ry); break; case RR_SRAV: gen_shift(env, ctx, OPC_SRAV, ry, rx, ry); break; #if defined (TARGET_MIPS64) case RR_DSRL: check_mips_64(ctx); gen_shift_imm(env, ctx, OPC_DSRL, ry, ry, sa); break; #endif case RR_CMP: gen_logic(env, OPC_XOR, 24, rx, ry); break; case RR_NEG: gen_arith(env, ctx, OPC_SUBU, rx, 0, ry); break; case RR_AND: gen_logic(env, OPC_AND, rx, rx, ry); break; case RR_OR: gen_logic(env, OPC_OR, rx, rx, ry); break; case RR_XOR: gen_logic(env, OPC_XOR, rx, rx, ry); break; case RR_NOT: gen_logic(env, OPC_NOR, rx, ry, 0); break; case RR_MFHI: gen_HILO(ctx, OPC_MFHI, rx); break; case RR_CNVT: switch (cnvt_op) { case RR_RY_CNVT_ZEB: tcg_gen_ext8u_tl(cpu_gpr[rx], cpu_gpr[rx]); break; case RR_RY_CNVT_ZEH: tcg_gen_ext16u_tl(cpu_gpr[rx], cpu_gpr[rx]); break; case RR_RY_CNVT_SEB: tcg_gen_ext8s_tl(cpu_gpr[rx], cpu_gpr[rx]); break; case RR_RY_CNVT_SEH: tcg_gen_ext16s_tl(cpu_gpr[rx], cpu_gpr[rx]); break; #if defined (TARGET_MIPS64) case RR_RY_CNVT_ZEW: check_mips_64(ctx); tcg_gen_ext32u_tl(cpu_gpr[rx], cpu_gpr[rx]); break; case RR_RY_CNVT_SEW: check_mips_64(ctx); tcg_gen_ext32s_tl(cpu_gpr[rx], cpu_gpr[rx]); break; #endif default: generate_exception(ctx, EXCP_RI); break; } break; case RR_MFLO: gen_HILO(ctx, OPC_MFLO, rx); break; #if defined (TARGET_MIPS64) case RR_DSRA: check_mips_64(ctx); gen_shift_imm(env, ctx, OPC_DSRA, ry, ry, sa); break; case RR_DSLLV: check_mips_64(ctx); gen_shift(env, ctx, OPC_DSLLV, ry, rx, ry); break; case RR_DSRLV: check_mips_64(ctx); gen_shift(env, ctx, OPC_DSRLV, ry, rx, ry); break; case RR_DSRAV: check_mips_64(ctx); gen_shift(env, ctx, OPC_DSRAV, ry, rx, ry); break; #endif case RR_MULT: gen_muldiv(ctx, OPC_MULT, rx, ry); break; case RR_MULTU: gen_muldiv(ctx, OPC_MULTU, rx, ry); break; case RR_DIV: gen_muldiv(ctx, OPC_DIV, rx, ry); break; case RR_DIVU: gen_muldiv(ctx, OPC_DIVU, rx, ry); break; #if defined (TARGET_MIPS64) case RR_DMULT: check_mips_64(ctx); gen_muldiv(ctx, OPC_DMULT, rx, ry); break; case RR_DMULTU: check_mips_64(ctx); gen_muldiv(ctx, OPC_DMULTU, rx, ry); break; case RR_DDIV: check_mips_64(ctx); gen_muldiv(ctx, OPC_DDIV, rx, ry); break; case RR_DDIVU: check_mips_64(ctx); gen_muldiv(ctx, OPC_DDIVU, rx, ry); break; #endif default: generate_exception(ctx, EXCP_RI); break; } break; case M16_OPC_EXTEND: decode_extended_mips16_opc(env, ctx, is_branch); n_bytes = 4; break; #if defined(TARGET_MIPS64) case M16_OPC_I64: funct = (ctx->opcode >> 8) & 0x7; decode_i64_mips16(env, ctx, ry, funct, offset, 0); break; #endif default: generate_exception(ctx, EXCP_RI); break; } return n_bytes; } /* microMIPS extension to MIPS32 */ /* microMIPS32 major opcodes */ enum { POOL32A = 0x00, POOL16A = 0x01, LBU16 = 0x02, MOVE16 = 0x03, ADDI32 = 0x04, LBU32 = 0x05, SB32 = 0x06, LB32 = 0x07, POOL32B = 0x08, POOL16B = 0x09, LHU16 = 0x0a, ANDI16 = 0x0b, ADDIU32 = 0x0c, LHU32 = 0x0d, SH32 = 0x0e, LH32 = 0x0f, POOL32I = 0x10, POOL16C = 0x11, LWSP16 = 0x12, POOL16D = 0x13, ORI32 = 0x14, POOL32F = 0x15, POOL32S = 0x16, DADDIU32 = 0x17, POOL32C = 0x18, LWGP16 = 0x19, LW16 = 0x1a, POOL16E = 0x1b, XORI32 = 0x1c, JALS32 = 0x1d, ADDIUPC = 0x1e, POOL48A = 0x1f, /* 0x20 is reserved */ RES_20 = 0x20, POOL16F = 0x21, SB16 = 0x22, BEQZ16 = 0x23, SLTI32 = 0x24, BEQ32 = 0x25, SWC132 = 0x26, LWC132 = 0x27, /* 0x28 and 0x29 are reserved */ RES_28 = 0x28, RES_29 = 0x29, SH16 = 0x2a, BNEZ16 = 0x2b, SLTIU32 = 0x2c, BNE32 = 0x2d, SDC132 = 0x2e, LDC132 = 0x2f, /* 0x30 and 0x31 are reserved */ RES_30 = 0x30, RES_31 = 0x31, SWSP16 = 0x32, B16 = 0x33, ANDI32 = 0x34, J32 = 0x35, SD32 = 0x36, LD32 = 0x37, /* 0x38 and 0x39 are reserved */ RES_38 = 0x38, RES_39 = 0x39, SW16 = 0x3a, LI16 = 0x3b, JALX32 = 0x3c, JAL32 = 0x3d, SW32 = 0x3e, LW32 = 0x3f }; /* POOL32A encoding of minor opcode field */ enum { /* These opcodes are distinguished only by bits 9..6; those bits are * what are recorded below. */ SLL32 = 0x0, SRL32 = 0x1, SRA = 0x2, ROTR = 0x3, SLLV = 0x0, SRLV = 0x1, SRAV = 0x2, ROTRV = 0x3, ADD = 0x4, ADDU32 = 0x5, SUB = 0x6, SUBU32 = 0x7, MUL = 0x8, AND = 0x9, OR32 = 0xa, NOR = 0xb, XOR32 = 0xc, SLT = 0xd, SLTU = 0xe, MOVN = 0x0, MOVZ = 0x1, LWXS = 0x4, /* The following can be distinguished by their lower 6 bits. */ INS = 0x0c, EXT = 0x2c, POOL32AXF = 0x3c }; /* POOL32AXF encoding of minor opcode field extension */ enum { /* bits 11..6 */ TEQ = 0x00, TGE = 0x08, TGEU = 0x10, TLT = 0x20, TLTU = 0x28, TNE = 0x30, MFC0 = 0x03, MTC0 = 0x0b, /* bits 13..12 for 0x01 */ MFHI_ACC = 0x0, MFLO_ACC = 0x1, MTHI_ACC = 0x2, MTLO_ACC = 0x3, /* bits 13..12 for 0x2a */ MADD_ACC = 0x0, MADDU_ACC = 0x1, MSUB_ACC = 0x2, MSUBU_ACC = 0x3, /* bits 13..12 for 0x32 */ MULT_ACC = 0x0, MULTU_ACC = 0x0, /* bits 15..12 for 0x2c */ SEB = 0x2, SEH = 0x3, CLO = 0x4, CLZ = 0x5, RDHWR = 0x6, WSBH = 0x7, MULT = 0x8, MULTU = 0x9, DIV = 0xa, DIVU = 0xb, MADD = 0xc, MADDU = 0xd, MSUB = 0xe, MSUBU = 0xf, /* bits 15..12 for 0x34 */ MFC2 = 0x4, MTC2 = 0x5, MFHC2 = 0x8, MTHC2 = 0x9, CFC2 = 0xc, CTC2 = 0xd, /* bits 15..12 for 0x3c */ JALR = 0x0, JR = 0x0, /* alias */ JALR_HB = 0x1, JALRS = 0x4, JALRS_HB = 0x5, /* bits 15..12 for 0x05 */ RDPGPR = 0xe, WRPGPR = 0xf, /* bits 15..12 for 0x0d */ TLBP = 0x0, TLBR = 0x1, TLBWI = 0x2, TLBWR = 0x3, WAIT = 0x9, IRET = 0xd, DERET = 0xe, ERET = 0xf, /* bits 15..12 for 0x15 */ DMT = 0x0, DVPE = 0x1, EMT = 0x2, EVPE = 0x3, /* bits 15..12 for 0x1d */ DI = 0x4, EI = 0x5, /* bits 15..12 for 0x2d */ SYNC = 0x6, SYSCALL = 0x8, SDBBP = 0xd, /* bits 15..12 for 0x35 */ MFHI32 = 0x0, MFLO32 = 0x1, MTHI32 = 0x2, MTLO32 = 0x3, }; /* POOL32B encoding of minor opcode field (bits 15..12) */ enum { LWC2 = 0x0, LWP = 0x1, LDP = 0x4, LWM32 = 0x5, CACHE = 0x6, LDM = 0x7, SWC2 = 0x8, SWP = 0x9, SDP = 0xc, SWM32 = 0xd, SDM = 0xf }; /* POOL32C encoding of minor opcode field (bits 15..12) */ enum { LWL = 0x0, SWL = 0x8, LWR = 0x1, SWR = 0x9, PREF = 0x2, /* 0xa is reserved */ LL = 0x3, SC = 0xb, LDL = 0x4, SDL = 0xc, LDR = 0x5, SDR = 0xd, /* 0x6 is reserved */ LWU = 0xe, LLD = 0x7, SCD = 0xf }; /* POOL32F encoding of minor opcode field (bits 5..0) */ enum { /* These are the bit 7..6 values */ ADD_FMT = 0x0, MOVN_FMT = 0x0, SUB_FMT = 0x1, MOVZ_FMT = 0x1, MUL_FMT = 0x2, DIV_FMT = 0x3, /* These are the bit 8..6 values */ RSQRT2_FMT = 0x0, MOVF_FMT = 0x0, LWXC1 = 0x1, MOVT_FMT = 0x1, PLL_PS = 0x2, SWXC1 = 0x2, PLU_PS = 0x3, LDXC1 = 0x3, PUL_PS = 0x4, SDXC1 = 0x4, RECIP2_FMT = 0x4, PUU_PS = 0x5, LUXC1 = 0x5, CVT_PS_S = 0x6, SUXC1 = 0x6, ADDR_PS = 0x6, PREFX = 0x6, MULR_PS = 0x7, MADD_S = 0x01, MADD_D = 0x09, MADD_PS = 0x11, ALNV_PS = 0x19, MSUB_S = 0x21, MSUB_D = 0x29, MSUB_PS = 0x31, NMADD_S = 0x02, NMADD_D = 0x0a, NMADD_PS = 0x12, NMSUB_S = 0x22, NMSUB_D = 0x2a, NMSUB_PS = 0x32, POOL32FXF = 0x3b, CABS_COND_FMT = 0x1c, /* MIPS3D */ C_COND_FMT = 0x3c }; /* POOL32Fxf encoding of minor opcode extension field */ enum { CVT_L = 0x04, RSQRT_FMT = 0x08, FLOOR_L = 0x0c, CVT_PW_PS = 0x1c, CVT_W = 0x24, SQRT_FMT = 0x28, FLOOR_W = 0x2c, CVT_PS_PW = 0x3c, CFC1 = 0x40, RECIP_FMT = 0x48, CEIL_L = 0x4c, CTC1 = 0x60, CEIL_W = 0x6c, MFC1 = 0x80, CVT_S_PL = 0x84, TRUNC_L = 0x8c, MTC1 = 0xa0, CVT_S_PU = 0xa4, TRUNC_W = 0xac, MFHC1 = 0xc0, ROUND_L = 0xcc, MTHC1 = 0xe0, ROUND_W = 0xec, MOV_FMT = 0x01, MOVF = 0x05, ABS_FMT = 0x0d, RSQRT1_FMT = 0x1d, MOVT = 0x25, NEG_FMT = 0x2d, CVT_D = 0x4d, RECIP1_FMT = 0x5d, CVT_S = 0x6d }; /* POOL32I encoding of minor opcode field (bits 25..21) */ enum { BLTZ = 0x00, BLTZAL = 0x01, BGEZ = 0x02, BGEZAL = 0x03, BLEZ = 0x04, BNEZC = 0x05, BGTZ = 0x06, BEQZC = 0x07, TLTI = 0x08, TGEI = 0x09, TLTIU = 0x0a, TGEIU = 0x0b, TNEI = 0x0c, LUI = 0x0d, TEQI = 0x0e, SYNCI = 0x10, BLTZALS = 0x11, BGEZALS = 0x13, BC2F = 0x14, BC2T = 0x15, BPOSGE64 = 0x1a, BPOSGE32 = 0x1b, /* These overlap and are distinguished by bit16 of the instruction */ BC1F = 0x1c, BC1T = 0x1d, BC1ANY2F = 0x1c, BC1ANY2T = 0x1d, BC1ANY4F = 0x1e, BC1ANY4T = 0x1f }; /* POOL16A encoding of minor opcode field */ enum { ADDU16 = 0x0, SUBU16 = 0x1 }; /* POOL16B encoding of minor opcode field */ enum { SLL16 = 0x0, SRL16 = 0x1 }; /* POOL16C encoding of minor opcode field */ enum { NOT16 = 0x00, XOR16 = 0x04, AND16 = 0x08, OR16 = 0x0c, LWM16 = 0x10, SWM16 = 0x14, JR16 = 0x18, JRC16 = 0x1a, JALR16 = 0x1c, JALR16S = 0x1e, MFHI16 = 0x20, MFLO16 = 0x24, BREAK16 = 0x28, SDBBP16 = 0x2c, JRADDIUSP = 0x30 }; /* POOL16D encoding of minor opcode field */ enum { ADDIUS5 = 0x0, ADDIUSP = 0x1 }; /* POOL16E encoding of minor opcode field */ enum { ADDIUR2 = 0x0, ADDIUR1SP = 0x1 }; static int mmreg (int r) { static const int map[] = { 16, 17, 2, 3, 4, 5, 6, 7 }; return map[r]; } /* Used for 16-bit store instructions. */ static int mmreg2 (int r) { static const int map[] = { 0, 17, 2, 3, 4, 5, 6, 7 }; return map[r]; } #define uMIPS_RD(op) ((op >> 7) & 0x7) #define uMIPS_RS(op) ((op >> 4) & 0x7) #define uMIPS_RS2(op) uMIPS_RS(op) #define uMIPS_RS1(op) ((op >> 1) & 0x7) #define uMIPS_RD5(op) ((op >> 5) & 0x1f) #define uMIPS_RS5(op) (op & 0x1f) /* Signed immediate */ #define SIMM(op, start, width) \ ((int32_t)(((op >> start) & ((~0U) >> (32-width))) \ << (32-width)) \ >> (32-width)) /* Zero-extended immediate */ #define ZIMM(op, start, width) ((op >> start) & ((~0U) >> (32-width))) static void gen_addiur1sp (CPUState *env, DisasContext *ctx) { int rd = mmreg(uMIPS_RD(ctx->opcode)); gen_arith_imm(env, ctx, OPC_ADDIU, rd, 29, ((ctx->opcode >> 1) & 0x3f) << 2); } static void gen_addiur2 (CPUState *env, DisasContext *ctx) { static const int decoded_imm[] = { 1, 4, 8, 12, 16, 20, 24, -1 }; int rd = mmreg(uMIPS_RD(ctx->opcode)); int rs = mmreg(uMIPS_RS(ctx->opcode)); gen_arith_imm(env, ctx, OPC_ADDIU, rd, rs, decoded_imm[ZIMM(ctx->opcode, 1, 3)]); } static void gen_addiusp (CPUState *env, DisasContext *ctx) { int encoded = ZIMM(ctx->opcode, 1, 9); int decoded; if (encoded <= 1) { decoded = 256 + encoded; } else if (encoded <= 255) { decoded = encoded; } else if (encoded <= 509) { decoded = encoded - 512; } else { decoded = encoded - 768; } gen_arith_imm(env, ctx, OPC_ADDIU, 29, 29, decoded << 2); } static void gen_addius5 (CPUState *env, DisasContext *ctx) { int imm = SIMM(ctx->opcode, 1, 4); int rd = (ctx->opcode >> 5) & 0x1f; gen_arith_imm(env, ctx, OPC_ADDIU, rd, rd, imm); } static void gen_andi16 (CPUState *env, DisasContext *ctx) { static const int decoded_imm[] = { 128, 1, 2, 3, 4, 7, 8, 15, 16, 31, 32, 63, 64, 255, 32768, 65535 }; int rd = mmreg(uMIPS_RD(ctx->opcode)); int rs = mmreg(uMIPS_RS(ctx->opcode)); int encoded = ZIMM(ctx->opcode, 0, 4); gen_logic_imm(env, OPC_ANDI, rd, rs, decoded_imm[encoded]); } static void gen_ldst_multiple (DisasContext *ctx, uint32_t opc, int reglist, int base, int16_t offset) { TCGv t0, t1; TCGv_i32 t2; if (ctx->hflags & MIPS_HFLAG_BMASK) { generate_exception(ctx, EXCP_RI); return; } t0 = tcg_temp_new(); gen_base_offset_addr(ctx, t0, base, offset); t1 = tcg_const_tl(reglist); t2 = tcg_const_i32(ctx->mem_idx); save_cpu_state(ctx, 1); switch (opc) { case LWM32: gen_helper_lwm(t0, t1, t2); break; case SWM32: gen_helper_swm(t0, t1, t2); break; #ifdef TARGET_MIPS64 case LDM: gen_helper_ldm(t0, t1, t2); break; case SDM: gen_helper_sdm(t0, t1, t2); break; #endif } MIPS_DEBUG("%s, %x, %d(%s)", opn, reglist, offset, regnames[base]); tcg_temp_free(t0); tcg_temp_free(t1); tcg_temp_free_i32(t2); } static void gen_pool16c_insn (CPUState *env, DisasContext *ctx, int *is_branch) { int rd = mmreg((ctx->opcode >> 3) & 0x7); int rs = mmreg(ctx->opcode & 0x7); int opc; switch (((ctx->opcode) >> 4) & 0x3f) { case NOT16 + 0: case NOT16 + 1: case NOT16 + 2: case NOT16 + 3: gen_logic(env, OPC_NOR, rd, rs, 0); break; case XOR16 + 0: case XOR16 + 1: case XOR16 + 2: case XOR16 + 3: gen_logic(env, OPC_XOR, rd, rd, rs); break; case AND16 + 0: case AND16 + 1: case AND16 + 2: case AND16 + 3: gen_logic(env, OPC_AND, rd, rd, rs); break; case OR16 + 0: case OR16 + 1: case OR16 + 2: case OR16 + 3: gen_logic(env, OPC_OR, rd, rd, rs); break; case LWM16 + 0: case LWM16 + 1: case LWM16 + 2: case LWM16 + 3: { static const int lwm_convert[] = { 0x11, 0x12, 0x13, 0x14 }; int offset = ZIMM(ctx->opcode, 0, 4); gen_ldst_multiple(ctx, LWM32, lwm_convert[(ctx->opcode >> 4) & 0x3], 29, offset << 2); } break; case SWM16 + 0: case SWM16 + 1: case SWM16 + 2: case SWM16 + 3: { static const int swm_convert[] = { 0x11, 0x12, 0x13, 0x14 }; int offset = ZIMM(ctx->opcode, 0, 4); gen_ldst_multiple(ctx, SWM32, swm_convert[(ctx->opcode >> 4) & 0x3], 29, offset << 2); } break; case JR16 + 0: case JR16 + 1: { int reg = ctx->opcode & 0x1f; gen_compute_branch(ctx, OPC_JR, 2, reg, 0, 0); } *is_branch = 1; break; case JRC16 + 0: case JRC16 + 1: { int reg = ctx->opcode & 0x1f; gen_compute_branch(ctx, OPC_JR, 2, reg, 0, 0); /* Let normal delay slot handling in our caller take us to the branch target. */ } break; case JALR16 + 0: case JALR16 + 1: opc = OPC_JALR; goto do_jalr; case JALR16S + 0: case JALR16S + 1: opc = OPC_JALRS; do_jalr: { int reg = ctx->opcode & 0x1f; gen_compute_branch(ctx, opc, 2, reg, 31, 0); } *is_branch = 1; break; case MFHI16 + 0: case MFHI16 + 1: gen_HILO(ctx, OPC_MFHI, uMIPS_RS5(ctx->opcode)); break; case MFLO16 + 0: case MFLO16 + 1: gen_HILO(ctx, OPC_MFLO, uMIPS_RS5(ctx->opcode)); break; case BREAK16: generate_exception(ctx, EXCP_BREAK); break; case SDBBP16: /* XXX: not clear which exception should be raised * when in debug mode... */ check_insn(env, ctx, ISA_MIPS32); if (!(ctx->hflags & MIPS_HFLAG_DM)) { generate_exception(ctx, EXCP_DBp); } else { generate_exception(ctx, EXCP_DBp); } break; case JRADDIUSP + 0: case JRADDIUSP + 1: { int imm = ZIMM(ctx->opcode, 0, 5); gen_compute_branch(ctx, OPC_JR, 2, 31, 0, 0); gen_arith_imm(env, ctx, OPC_ADDIU, 29, 29, imm << 2); /* Let normal delay slot handling in our caller take us to the branch target. */ } break; default: generate_exception(ctx, EXCP_RI); break; } } static void gen_ldxs (DisasContext *ctx, int base, int index, int rd) { TCGv t0 = tcg_temp_new(); TCGv t1 = tcg_temp_new(); gen_load_gpr(t0, base); if (index != 0) { gen_load_gpr(t1, index); tcg_gen_shli_tl(t1, t1, 2); gen_op_addr_add(ctx, t0, t1, t0); } save_cpu_state(ctx, 0); op_ld_lw(t1, t0, ctx); gen_store_gpr(t1, rd); tcg_temp_free(t0); tcg_temp_free(t1); } static void gen_ldst_pair (DisasContext *ctx, uint32_t opc, int rd, int base, int16_t offset) { const char *opn = "ldst_pair"; TCGv t0, t1; if (ctx->hflags & MIPS_HFLAG_BMASK || rd == 31 || rd == base) { generate_exception(ctx, EXCP_RI); return; } t0 = tcg_temp_new(); t1 = tcg_temp_new(); gen_base_offset_addr(ctx, t0, base, offset); switch (opc) { case LWP: save_cpu_state(ctx, 0); op_ld_lw(t1, t0, ctx); gen_store_gpr(t1, rd); tcg_gen_movi_tl(t1, 4); gen_op_addr_add(ctx, t0, t0, t1); op_ld_lw(t1, t0, ctx); gen_store_gpr(t1, rd+1); opn = "lwp"; break; case SWP: save_cpu_state(ctx, 0); gen_load_gpr(t1, rd); op_st_sw(t1, t0, ctx); tcg_gen_movi_tl(t1, 4); gen_op_addr_add(ctx, t0, t0, t1); gen_load_gpr(t1, rd+1); op_st_sw(t1, t0, ctx); opn = "swp"; break; #ifdef TARGET_MIPS64 case LDP: save_cpu_state(ctx, 0); op_ld_ld(t1, t0, ctx); gen_store_gpr(t1, rd); tcg_gen_movi_tl(t1, 8); gen_op_addr_add(ctx, t0, t0, t1); op_ld_ld(t1, t0, ctx); gen_store_gpr(t1, rd+1); opn = "ldp"; break; case SDP: save_cpu_state(ctx, 0); gen_load_gpr(t1, rd); op_st_sd(t1, t0, ctx); tcg_gen_movi_tl(t1, 8); gen_op_addr_add(ctx, t0, t0, t1); gen_load_gpr(t1, rd+1); op_st_sd(t1, t0, ctx); opn = "sdp"; break; #endif } (void)opn; /* avoid a compiler warning */ MIPS_DEBUG("%s, %s, %d(%s)", opn, regnames[rd], offset, regnames[base]); tcg_temp_free(t0); tcg_temp_free(t1); } static void gen_pool32axf (CPUState *env, DisasContext *ctx, int rt, int rs, int *is_branch) { int extension = (ctx->opcode >> 6) & 0x3f; int minor = (ctx->opcode >> 12) & 0xf; uint32_t mips32_op; switch (extension) { case TEQ: mips32_op = OPC_TEQ; goto do_trap; case TGE: mips32_op = OPC_TGE; goto do_trap; case TGEU: mips32_op = OPC_TGEU; goto do_trap; case TLT: mips32_op = OPC_TLT; goto do_trap; case TLTU: mips32_op = OPC_TLTU; goto do_trap; case TNE: mips32_op = OPC_TNE; do_trap: gen_trap(ctx, mips32_op, rs, rt, -1); break; #ifndef CONFIG_USER_ONLY case MFC0: case MFC0 + 32: if (rt == 0) { /* Treat as NOP. */ break; } gen_mfc0(env, ctx, cpu_gpr[rt], rs, (ctx->opcode >> 11) & 0x7); break; case MTC0: case MTC0 + 32: { TCGv t0 = tcg_temp_new(); gen_load_gpr(t0, rt); gen_mtc0(env, ctx, t0, rs, (ctx->opcode >> 11) & 0x7); tcg_temp_free(t0); } break; #endif case 0x2c: switch (minor) { case SEB: gen_bshfl(ctx, OPC_SEB, rs, rt); break; case SEH: gen_bshfl(ctx, OPC_SEH, rs, rt); break; case CLO: mips32_op = OPC_CLO; goto do_cl; case CLZ: mips32_op = OPC_CLZ; do_cl: check_insn(env, ctx, ISA_MIPS32); gen_cl(ctx, mips32_op, rt, rs); break; case RDHWR: gen_rdhwr(env, ctx, rt, rs); break; case WSBH: gen_bshfl(ctx, OPC_WSBH, rs, rt); break; case MULT: mips32_op = OPC_MULT; goto do_muldiv; case MULTU: mips32_op = OPC_MULTU; goto do_muldiv; case DIV: mips32_op = OPC_DIV; goto do_muldiv; case DIVU: mips32_op = OPC_DIVU; goto do_muldiv; case MADD: mips32_op = OPC_MADD; goto do_muldiv; case MADDU: mips32_op = OPC_MADDU; goto do_muldiv; case MSUB: mips32_op = OPC_MSUB; goto do_muldiv; case MSUBU: mips32_op = OPC_MSUBU; do_muldiv: check_insn(env, ctx, ISA_MIPS32); gen_muldiv(ctx, mips32_op, rs, rt); break; default: goto pool32axf_invalid; } break; case 0x34: switch (minor) { case MFC2: case MTC2: case MFHC2: case MTHC2: case CFC2: case CTC2: generate_exception_err(ctx, EXCP_CpU, 2); break; default: goto pool32axf_invalid; } break; case 0x3c: switch (minor) { case JALR: case JALR_HB: gen_compute_branch (ctx, OPC_JALR, 4, rs, rt, 0); *is_branch = 1; break; case JALRS: case JALRS_HB: gen_compute_branch (ctx, OPC_JALRS, 4, rs, rt, 0); *is_branch = 1; break; default: goto pool32axf_invalid; } break; case 0x05: switch (minor) { case RDPGPR: check_insn(env, ctx, ISA_MIPS32R2); gen_load_srsgpr(rt, rs); break; case WRPGPR: check_insn(env, ctx, ISA_MIPS32R2); gen_store_srsgpr(rt, rs); break; default: goto pool32axf_invalid; } break; #ifndef CONFIG_USER_ONLY case 0x0d: switch (minor) { case TLBP: mips32_op = OPC_TLBP; goto do_cp0; case TLBR: mips32_op = OPC_TLBR; goto do_cp0; case TLBWI: mips32_op = OPC_TLBWI; goto do_cp0; case TLBWR: mips32_op = OPC_TLBWR; goto do_cp0; case WAIT: mips32_op = OPC_WAIT; goto do_cp0; case DERET: mips32_op = OPC_DERET; goto do_cp0; case ERET: mips32_op = OPC_ERET; do_cp0: gen_cp0(env, ctx, mips32_op, rt, rs); break; default: goto pool32axf_invalid; } break; case 0x1d: switch (minor) { case DI: { TCGv t0 = tcg_temp_new(); save_cpu_state(ctx, 1); gen_helper_di(t0); gen_store_gpr(t0, rs); /* Stop translation as we may have switched the execution mode */ ctx->bstate = BS_STOP; tcg_temp_free(t0); } break; case EI: { TCGv t0 = tcg_temp_new(); save_cpu_state(ctx, 1); gen_helper_ei(t0); gen_store_gpr(t0, rs); /* Stop translation as we may have switched the execution mode */ ctx->bstate = BS_STOP; tcg_temp_free(t0); } break; default: goto pool32axf_invalid; } break; #endif case 0x2d: switch (minor) { case SYNC: /* NOP */ break; case SYSCALL: generate_exception(ctx, EXCP_SYSCALL); ctx->bstate = BS_STOP; break; case SDBBP: check_insn(env, ctx, ISA_MIPS32); if (!(ctx->hflags & MIPS_HFLAG_DM)) { generate_exception(ctx, EXCP_DBp); } else { generate_exception(ctx, EXCP_DBp); } break; default: goto pool32axf_invalid; } break; case 0x35: switch (minor) { case MFHI32: gen_HILO(ctx, OPC_MFHI, rs); break; case MFLO32: gen_HILO(ctx, OPC_MFLO, rs); break; case MTHI32: gen_HILO(ctx, OPC_MTHI, rs); break; case MTLO32: gen_HILO(ctx, OPC_MTLO, rs); break; default: goto pool32axf_invalid; } break; default: pool32axf_invalid: MIPS_INVAL("pool32axf"); generate_exception(ctx, EXCP_RI); break; } } /* Values for microMIPS fmt field. Variable-width, depending on which formats the instruction supports. */ enum { FMT_SD_S = 0, FMT_SD_D = 1, FMT_SDPS_S = 0, FMT_SDPS_D = 1, FMT_SDPS_PS = 2, FMT_SWL_S = 0, FMT_SWL_W = 1, FMT_SWL_L = 2, FMT_DWL_D = 0, FMT_DWL_W = 1, FMT_DWL_L = 2 }; static void gen_pool32fxf (CPUState *env, DisasContext *ctx, int rt, int rs) { int extension = (ctx->opcode >> 6) & 0x3ff; uint32_t mips32_op; #define FLOAT_1BIT_FMT(opc, fmt) (fmt << 8) | opc #define FLOAT_2BIT_FMT(opc, fmt) (fmt << 7) | opc #define COND_FLOAT_MOV(opc, cond) (cond << 7) | opc switch (extension) { case FLOAT_1BIT_FMT(CFC1, 0): mips32_op = OPC_CFC1; goto do_cp1; case FLOAT_1BIT_FMT(CTC1, 0): mips32_op = OPC_CTC1; goto do_cp1; case FLOAT_1BIT_FMT(MFC1, 0): mips32_op = OPC_MFC1; goto do_cp1; case FLOAT_1BIT_FMT(MTC1, 0): mips32_op = OPC_MTC1; goto do_cp1; case FLOAT_1BIT_FMT(MFHC1, 0): mips32_op = OPC_MFHC1; goto do_cp1; case FLOAT_1BIT_FMT(MTHC1, 0): mips32_op = OPC_MTHC1; do_cp1: gen_cp1(ctx, mips32_op, rt, rs); break; /* Reciprocal square root */ case FLOAT_1BIT_FMT(RSQRT_FMT, FMT_SD_S): mips32_op = OPC_RSQRT_S; goto do_unaryfp; case FLOAT_1BIT_FMT(RSQRT_FMT, FMT_SD_D): mips32_op = OPC_RSQRT_D; goto do_unaryfp; /* Square root */ case FLOAT_1BIT_FMT(SQRT_FMT, FMT_SD_S): mips32_op = OPC_SQRT_S; goto do_unaryfp; case FLOAT_1BIT_FMT(SQRT_FMT, FMT_SD_D): mips32_op = OPC_SQRT_D; goto do_unaryfp; /* Reciprocal */ case FLOAT_1BIT_FMT(RECIP_FMT, FMT_SD_S): mips32_op = OPC_RECIP_S; goto do_unaryfp; case FLOAT_1BIT_FMT(RECIP_FMT, FMT_SD_D): mips32_op = OPC_RECIP_D; goto do_unaryfp; /* Floor */ case FLOAT_1BIT_FMT(FLOOR_L, FMT_SD_S): mips32_op = OPC_FLOOR_L_S; goto do_unaryfp; case FLOAT_1BIT_FMT(FLOOR_L, FMT_SD_D): mips32_op = OPC_FLOOR_L_D; goto do_unaryfp; case FLOAT_1BIT_FMT(FLOOR_W, FMT_SD_S): mips32_op = OPC_FLOOR_W_S; goto do_unaryfp; case FLOAT_1BIT_FMT(FLOOR_W, FMT_SD_D): mips32_op = OPC_FLOOR_W_D; goto do_unaryfp; /* Ceiling */ case FLOAT_1BIT_FMT(CEIL_L, FMT_SD_S): mips32_op = OPC_CEIL_L_S; goto do_unaryfp; case FLOAT_1BIT_FMT(CEIL_L, FMT_SD_D): mips32_op = OPC_CEIL_L_D; goto do_unaryfp; case FLOAT_1BIT_FMT(CEIL_W, FMT_SD_S): mips32_op = OPC_CEIL_W_S; goto do_unaryfp; case FLOAT_1BIT_FMT(CEIL_W, FMT_SD_D): mips32_op = OPC_CEIL_W_D; goto do_unaryfp; /* Truncation */ case FLOAT_1BIT_FMT(TRUNC_L, FMT_SD_S): mips32_op = OPC_TRUNC_L_S; goto do_unaryfp; case FLOAT_1BIT_FMT(TRUNC_L, FMT_SD_D): mips32_op = OPC_TRUNC_L_D; goto do_unaryfp; case FLOAT_1BIT_FMT(TRUNC_W, FMT_SD_S): mips32_op = OPC_TRUNC_W_S; goto do_unaryfp; case FLOAT_1BIT_FMT(TRUNC_W, FMT_SD_D): mips32_op = OPC_TRUNC_W_D; goto do_unaryfp; /* Round */ case FLOAT_1BIT_FMT(ROUND_L, FMT_SD_S): mips32_op = OPC_ROUND_L_S; goto do_unaryfp; case FLOAT_1BIT_FMT(ROUND_L, FMT_SD_D): mips32_op = OPC_ROUND_L_D; goto do_unaryfp; case FLOAT_1BIT_FMT(ROUND_W, FMT_SD_S): mips32_op = OPC_ROUND_W_S; goto do_unaryfp; case FLOAT_1BIT_FMT(ROUND_W, FMT_SD_D): mips32_op = OPC_ROUND_W_D; goto do_unaryfp; /* Integer to floating-point conversion */ case FLOAT_1BIT_FMT(CVT_L, FMT_SD_S): mips32_op = OPC_CVT_L_S; goto do_unaryfp; case FLOAT_1BIT_FMT(CVT_L, FMT_SD_D): mips32_op = OPC_CVT_L_D; goto do_unaryfp; case FLOAT_1BIT_FMT(CVT_W, FMT_SD_S): mips32_op = OPC_CVT_W_S; goto do_unaryfp; case FLOAT_1BIT_FMT(CVT_W, FMT_SD_D): mips32_op = OPC_CVT_W_D; goto do_unaryfp; /* Paired-foo conversions */ case FLOAT_1BIT_FMT(CVT_S_PL, 0): mips32_op = OPC_CVT_S_PL; goto do_unaryfp; case FLOAT_1BIT_FMT(CVT_S_PU, 0): mips32_op = OPC_CVT_S_PU; goto do_unaryfp; case FLOAT_1BIT_FMT(CVT_PW_PS, 0): mips32_op = OPC_CVT_PW_PS; goto do_unaryfp; case FLOAT_1BIT_FMT(CVT_PS_PW, 0): mips32_op = OPC_CVT_PS_PW; goto do_unaryfp; /* Floating-point moves */ case FLOAT_2BIT_FMT(MOV_FMT, FMT_SDPS_S): mips32_op = OPC_MOV_S; goto do_unaryfp; case FLOAT_2BIT_FMT(MOV_FMT, FMT_SDPS_D): mips32_op = OPC_MOV_D; goto do_unaryfp; case FLOAT_2BIT_FMT(MOV_FMT, FMT_SDPS_PS): mips32_op = OPC_MOV_PS; goto do_unaryfp; /* Absolute value */ case FLOAT_2BIT_FMT(ABS_FMT, FMT_SDPS_S): mips32_op = OPC_ABS_S; goto do_unaryfp; case FLOAT_2BIT_FMT(ABS_FMT, FMT_SDPS_D): mips32_op = OPC_ABS_D; goto do_unaryfp; case FLOAT_2BIT_FMT(ABS_FMT, FMT_SDPS_PS): mips32_op = OPC_ABS_PS; goto do_unaryfp; /* Negation */ case FLOAT_2BIT_FMT(NEG_FMT, FMT_SDPS_S): mips32_op = OPC_NEG_S; goto do_unaryfp; case FLOAT_2BIT_FMT(NEG_FMT, FMT_SDPS_D): mips32_op = OPC_NEG_D; goto do_unaryfp; case FLOAT_2BIT_FMT(NEG_FMT, FMT_SDPS_PS): mips32_op = OPC_NEG_PS; goto do_unaryfp; /* Reciprocal square root step */ case FLOAT_2BIT_FMT(RSQRT1_FMT, FMT_SDPS_S): mips32_op = OPC_RSQRT1_S; goto do_unaryfp; case FLOAT_2BIT_FMT(RSQRT1_FMT, FMT_SDPS_D): mips32_op = OPC_RSQRT1_D; goto do_unaryfp; case FLOAT_2BIT_FMT(RSQRT1_FMT, FMT_SDPS_PS): mips32_op = OPC_RSQRT1_PS; goto do_unaryfp; /* Reciprocal step */ case FLOAT_2BIT_FMT(RECIP1_FMT, FMT_SDPS_S): mips32_op = OPC_RECIP1_S; goto do_unaryfp; case FLOAT_2BIT_FMT(RECIP1_FMT, FMT_SDPS_D): mips32_op = OPC_RECIP1_S; goto do_unaryfp; case FLOAT_2BIT_FMT(RECIP1_FMT, FMT_SDPS_PS): mips32_op = OPC_RECIP1_PS; goto do_unaryfp; /* Conversions from double */ case FLOAT_2BIT_FMT(CVT_D, FMT_SWL_S): mips32_op = OPC_CVT_D_S; goto do_unaryfp; case FLOAT_2BIT_FMT(CVT_D, FMT_SWL_W): mips32_op = OPC_CVT_D_W; goto do_unaryfp; case FLOAT_2BIT_FMT(CVT_D, FMT_SWL_L): mips32_op = OPC_CVT_D_L; goto do_unaryfp; /* Conversions from single */ case FLOAT_2BIT_FMT(CVT_S, FMT_DWL_D): mips32_op = OPC_CVT_S_D; goto do_unaryfp; case FLOAT_2BIT_FMT(CVT_S, FMT_DWL_W): mips32_op = OPC_CVT_S_W; goto do_unaryfp; case FLOAT_2BIT_FMT(CVT_S, FMT_DWL_L): mips32_op = OPC_CVT_S_L; do_unaryfp: gen_farith(ctx, mips32_op, -1, rs, rt, 0); break; /* Conditional moves on floating-point codes */ case COND_FLOAT_MOV(MOVT, 0): case COND_FLOAT_MOV(MOVT, 1): case COND_FLOAT_MOV(MOVT, 2): case COND_FLOAT_MOV(MOVT, 3): case COND_FLOAT_MOV(MOVT, 4): case COND_FLOAT_MOV(MOVT, 5): case COND_FLOAT_MOV(MOVT, 6): case COND_FLOAT_MOV(MOVT, 7): gen_movci(ctx, rt, rs, (ctx->opcode >> 13) & 0x7, 1); break; case COND_FLOAT_MOV(MOVF, 0): case COND_FLOAT_MOV(MOVF, 1): case COND_FLOAT_MOV(MOVF, 2): case COND_FLOAT_MOV(MOVF, 3): case COND_FLOAT_MOV(MOVF, 4): case COND_FLOAT_MOV(MOVF, 5): case COND_FLOAT_MOV(MOVF, 6): case COND_FLOAT_MOV(MOVF, 7): gen_movci(ctx, rt, rs, (ctx->opcode >> 13) & 0x7, 0); break; default: MIPS_INVAL("pool32fxf"); generate_exception(ctx, EXCP_RI); break; } } static void decode_micromips32_opc (CPUState *env, DisasContext *ctx, uint16_t insn_hw1, int *is_branch) { int32_t offset; uint16_t insn; int rt, rs, rd, rr; int16_t imm; uint32_t op, minor, mips32_op; uint32_t cond, fmt, cc; insn = lduw_code(ctx->pc + 2); ctx->opcode = (ctx->opcode << 16) | insn; rt = (ctx->opcode >> 21) & 0x1f; rs = (ctx->opcode >> 16) & 0x1f; rd = (ctx->opcode >> 11) & 0x1f; rr = (ctx->opcode >> 6) & 0x1f; imm = (int16_t) ctx->opcode; op = (ctx->opcode >> 26) & 0x3f; switch (op) { case POOL32A: minor = ctx->opcode & 0x3f; switch (minor) { case 0x00: minor = (ctx->opcode >> 6) & 0xf; switch (minor) { case SLL32: mips32_op = OPC_SLL; goto do_shifti; case SRA: mips32_op = OPC_SRA; goto do_shifti; case SRL32: mips32_op = OPC_SRL; goto do_shifti; case ROTR: mips32_op = OPC_ROTR; do_shifti: gen_shift_imm(env, ctx, mips32_op, rt, rs, rd); break; default: goto pool32a_invalid; } break; case 0x10: minor = (ctx->opcode >> 6) & 0xf; switch (minor) { /* Arithmetic */ case ADD: mips32_op = OPC_ADD; goto do_arith; case ADDU32: mips32_op = OPC_ADDU; goto do_arith; case SUB: mips32_op = OPC_SUB; goto do_arith; case SUBU32: mips32_op = OPC_SUBU; goto do_arith; case MUL: mips32_op = OPC_MUL; do_arith: gen_arith(env, ctx, mips32_op, rd, rs, rt); break; /* Shifts */ case SLLV: mips32_op = OPC_SLLV; goto do_shift; case SRLV: mips32_op = OPC_SRLV; goto do_shift; case SRAV: mips32_op = OPC_SRAV; goto do_shift; case ROTRV: mips32_op = OPC_ROTRV; do_shift: gen_shift(env, ctx, mips32_op, rd, rs, rt); break; /* Logical operations */ case AND: mips32_op = OPC_AND; goto do_logic; case OR32: mips32_op = OPC_OR; goto do_logic; case NOR: mips32_op = OPC_NOR; goto do_logic; case XOR32: mips32_op = OPC_XOR; do_logic: gen_logic(env, mips32_op, rd, rs, rt); break; /* Set less than */ case SLT: mips32_op = OPC_SLT; goto do_slt; case SLTU: mips32_op = OPC_SLTU; do_slt: gen_slt(env, mips32_op, rd, rs, rt); break; default: goto pool32a_invalid; } break; case 0x18: minor = (ctx->opcode >> 6) & 0xf; switch (minor) { /* Conditional moves */ case MOVN: mips32_op = OPC_MOVN; goto do_cmov; case MOVZ: mips32_op = OPC_MOVZ; do_cmov: gen_cond_move(env, mips32_op, rd, rs, rt); break; case LWXS: gen_ldxs(ctx, rs, rt, rd); break; default: goto pool32a_invalid; } break; case INS: gen_bitops(ctx, OPC_INS, rt, rs, rr, rd); return; case EXT: gen_bitops(ctx, OPC_EXT, rt, rs, rr, rd); return; case POOL32AXF: gen_pool32axf(env, ctx, rt, rs, is_branch); break; case 0x07: generate_exception(ctx, EXCP_BREAK); break; default: pool32a_invalid: MIPS_INVAL("pool32a"); generate_exception(ctx, EXCP_RI); break; } break; case POOL32B: minor = (ctx->opcode >> 12) & 0xf; switch (minor) { case CACHE: /* Treat as no-op. */ break; case LWC2: case SWC2: /* COP2: Not implemented. */ generate_exception_err(ctx, EXCP_CpU, 2); break; case LWP: case SWP: #ifdef TARGET_MIPS64 case LDP: case SDP: #endif gen_ldst_pair(ctx, minor, rt, rs, SIMM(ctx->opcode, 0, 12)); break; case LWM32: case SWM32: #ifdef TARGET_MIPS64 case LDM: case SDM: #endif gen_ldst_multiple(ctx, minor, rt, rs, SIMM(ctx->opcode, 0, 12)); break; default: MIPS_INVAL("pool32b"); generate_exception(ctx, EXCP_RI); break; } break; case POOL32F: if (env->CP0_Config1 & (1 << CP0C1_FP)) { minor = ctx->opcode & 0x3f; check_cp1_enabled(ctx); switch (minor) { case ALNV_PS: mips32_op = OPC_ALNV_PS; goto do_madd; case MADD_S: mips32_op = OPC_MADD_S; goto do_madd; case MADD_D: mips32_op = OPC_MADD_D; goto do_madd; case MADD_PS: mips32_op = OPC_MADD_PS; goto do_madd; case MSUB_S: mips32_op = OPC_MSUB_S; goto do_madd; case MSUB_D: mips32_op = OPC_MSUB_D; goto do_madd; case MSUB_PS: mips32_op = OPC_MSUB_PS; goto do_madd; case NMADD_S: mips32_op = OPC_NMADD_S; goto do_madd; case NMADD_D: mips32_op = OPC_NMADD_D; goto do_madd; case NMADD_PS: mips32_op = OPC_NMADD_PS; goto do_madd; case NMSUB_S: mips32_op = OPC_NMSUB_S; goto do_madd; case NMSUB_D: mips32_op = OPC_NMSUB_D; goto do_madd; case NMSUB_PS: mips32_op = OPC_NMSUB_PS; do_madd: gen_flt3_arith(ctx, mips32_op, rd, rr, rs, rt); break; case CABS_COND_FMT: cond = (ctx->opcode >> 6) & 0xf; cc = (ctx->opcode >> 13) & 0x7; fmt = (ctx->opcode >> 10) & 0x3; switch (fmt) { case 0x0: gen_cmpabs_s(ctx, cond, rt, rs, cc); break; case 0x1: gen_cmpabs_d(ctx, cond, rt, rs, cc); break; case 0x2: gen_cmpabs_ps(ctx, cond, rt, rs, cc); break; default: goto pool32f_invalid; } break; case C_COND_FMT: cond = (ctx->opcode >> 6) & 0xf; cc = (ctx->opcode >> 13) & 0x7; fmt = (ctx->opcode >> 10) & 0x3; switch (fmt) { case 0x0: gen_cmp_s(ctx, cond, rt, rs, cc); break; case 0x1: gen_cmp_d(ctx, cond, rt, rs, cc); break; case 0x2: gen_cmp_ps(ctx, cond, rt, rs, cc); break; default: goto pool32f_invalid; } break; case POOL32FXF: gen_pool32fxf(env, ctx, rt, rs); break; case 0x00: /* PLL foo */ switch ((ctx->opcode >> 6) & 0x7) { case PLL_PS: mips32_op = OPC_PLL_PS; goto do_ps; case PLU_PS: mips32_op = OPC_PLU_PS; goto do_ps; case PUL_PS: mips32_op = OPC_PUL_PS; goto do_ps; case PUU_PS: mips32_op = OPC_PUU_PS; goto do_ps; case CVT_PS_S: mips32_op = OPC_CVT_PS_S; do_ps: gen_farith(ctx, mips32_op, rt, rs, rd, 0); break; default: goto pool32f_invalid; } break; case 0x08: /* [LS][WDU]XC1 */ switch ((ctx->opcode >> 6) & 0x7) { case LWXC1: mips32_op = OPC_LWXC1; goto do_ldst_cp1; case SWXC1: mips32_op = OPC_SWXC1; goto do_ldst_cp1; case LDXC1: mips32_op = OPC_LDXC1; goto do_ldst_cp1; case SDXC1: mips32_op = OPC_SDXC1; goto do_ldst_cp1; case LUXC1: mips32_op = OPC_LUXC1; goto do_ldst_cp1; case SUXC1: mips32_op = OPC_SUXC1; do_ldst_cp1: gen_flt3_ldst(ctx, mips32_op, rd, rd, rt, rs); break; default: goto pool32f_invalid; } break; case 0x18: /* 3D insns */ fmt = (ctx->opcode >> 9) & 0x3; switch ((ctx->opcode >> 6) & 0x7) { case RSQRT2_FMT: switch (fmt) { case FMT_SDPS_S: mips32_op = OPC_RSQRT2_S; goto do_3d; case FMT_SDPS_D: mips32_op = OPC_RSQRT2_D; goto do_3d; case FMT_SDPS_PS: mips32_op = OPC_RSQRT2_PS; goto do_3d; default: goto pool32f_invalid; } break; case RECIP2_FMT: switch (fmt) { case FMT_SDPS_S: mips32_op = OPC_RECIP2_S; goto do_3d; case FMT_SDPS_D: mips32_op = OPC_RECIP2_D; goto do_3d; case FMT_SDPS_PS: mips32_op = OPC_RECIP2_PS; goto do_3d; default: goto pool32f_invalid; } break; case ADDR_PS: mips32_op = OPC_ADDR_PS; goto do_3d; case MULR_PS: mips32_op = OPC_MULR_PS; do_3d: gen_farith(ctx, mips32_op, rt, rs, rd, 0); break; default: goto pool32f_invalid; } break; case 0x20: /* MOV[FT].fmt and PREFX */ cc = (ctx->opcode >> 13) & 0x7; fmt = (ctx->opcode >> 9) & 0x3; switch ((ctx->opcode >> 6) & 0x7) { case MOVF_FMT: switch (fmt) { case FMT_SDPS_S: gen_movcf_s(rs, rt, cc, 0); break; case FMT_SDPS_D: gen_movcf_d(ctx, rs, rt, cc, 0); break; case FMT_SDPS_PS: gen_movcf_ps(rs, rt, cc, 0); break; default: goto pool32f_invalid; } break; case MOVT_FMT: switch (fmt) { case FMT_SDPS_S: gen_movcf_s(rs, rt, cc, 1); break; case FMT_SDPS_D: gen_movcf_d(ctx, rs, rt, cc, 1); break; case FMT_SDPS_PS: gen_movcf_ps(rs, rt, cc, 1); break; default: goto pool32f_invalid; } break; case PREFX: break; default: goto pool32f_invalid; } break; #define FINSN_3ARG_SDPS(prfx) \ switch ((ctx->opcode >> 8) & 0x3) { \ case FMT_SDPS_S: \ mips32_op = OPC_##prfx##_S; \ goto do_fpop; \ case FMT_SDPS_D: \ mips32_op = OPC_##prfx##_D; \ goto do_fpop; \ case FMT_SDPS_PS: \ mips32_op = OPC_##prfx##_PS; \ goto do_fpop; \ default: \ goto pool32f_invalid; \ } case 0x30: /* regular FP ops */ switch ((ctx->opcode >> 6) & 0x3) { case ADD_FMT: FINSN_3ARG_SDPS(ADD); break; case SUB_FMT: FINSN_3ARG_SDPS(SUB); break; case MUL_FMT: FINSN_3ARG_SDPS(MUL); break; case DIV_FMT: fmt = (ctx->opcode >> 8) & 0x3; if (fmt == 1) { mips32_op = OPC_DIV_D; } else if (fmt == 0) { mips32_op = OPC_DIV_S; } else { goto pool32f_invalid; } goto do_fpop; default: goto pool32f_invalid; } break; case 0x38: /* cmovs */ switch ((ctx->opcode >> 6) & 0x3) { case MOVN_FMT: FINSN_3ARG_SDPS(MOVN); break; case MOVZ_FMT: FINSN_3ARG_SDPS(MOVZ); break; default: goto pool32f_invalid; } break; do_fpop: gen_farith(ctx, mips32_op, rt, rs, rd, 0); break; default: pool32f_invalid: MIPS_INVAL("pool32f"); generate_exception(ctx, EXCP_RI); break; } } else { generate_exception_err(ctx, EXCP_CpU, 1); } break; case POOL32I: minor = (ctx->opcode >> 21) & 0x1f; switch (minor) { case BLTZ: mips32_op = OPC_BLTZ; goto do_branch; case BLTZAL: mips32_op = OPC_BLTZAL; goto do_branch; case BLTZALS: mips32_op = OPC_BLTZALS; goto do_branch; case BGEZ: mips32_op = OPC_BGEZ; goto do_branch; case BGEZAL: mips32_op = OPC_BGEZAL; goto do_branch; case BGEZALS: mips32_op = OPC_BGEZALS; goto do_branch; case BLEZ: mips32_op = OPC_BLEZ; goto do_branch; case BGTZ: mips32_op = OPC_BGTZ; do_branch: gen_compute_branch(ctx, mips32_op, 4, rs, -1, imm << 1); *is_branch = 1; break; /* Traps */ case TLTI: mips32_op = OPC_TLTI; goto do_trapi; case TGEI: mips32_op = OPC_TGEI; goto do_trapi; case TLTIU: mips32_op = OPC_TLTIU; goto do_trapi; case TGEIU: mips32_op = OPC_TGEIU; goto do_trapi; case TNEI: mips32_op = OPC_TNEI; goto do_trapi; case TEQI: mips32_op = OPC_TEQI; do_trapi: gen_trap(ctx, mips32_op, rs, -1, imm); break; case BNEZC: case BEQZC: gen_compute_branch(ctx, minor == BNEZC ? OPC_BNE : OPC_BEQ, 4, rs, 0, imm << 1); /* Compact branches don't have a delay slot, so just let the normal delay slot handling take us to the branch target. */ break; case LUI: gen_logic_imm(env, OPC_LUI, rs, -1, imm); break; case SYNCI: break; case BC2F: case BC2T: /* COP2: Not implemented. */ generate_exception_err(ctx, EXCP_CpU, 2); break; case BC1F: mips32_op = (ctx->opcode & (1 << 16)) ? OPC_BC1FANY2 : OPC_BC1F; goto do_cp1branch; case BC1T: mips32_op = (ctx->opcode & (1 << 16)) ? OPC_BC1TANY2 : OPC_BC1T; goto do_cp1branch; case BC1ANY4F: mips32_op = OPC_BC1FANY4; goto do_cp1mips3d; case BC1ANY4T: mips32_op = OPC_BC1TANY4; do_cp1mips3d: check_cop1x(ctx); check_insn(env, ctx, ASE_MIPS3D); /* Fall through */ do_cp1branch: gen_compute_branch1(env, ctx, mips32_op, (ctx->opcode >> 18) & 0x7, imm << 1); *is_branch = 1; break; case BPOSGE64: case BPOSGE32: /* MIPS DSP: not implemented */ /* Fall through */ default: MIPS_INVAL("pool32i"); generate_exception(ctx, EXCP_RI); break; } break; case POOL32C: minor = (ctx->opcode >> 12) & 0xf; switch (minor) { case LWL: mips32_op = OPC_LWL; goto do_ld_lr; case SWL: mips32_op = OPC_SWL; goto do_st_lr; case LWR: mips32_op = OPC_LWR; goto do_ld_lr; case SWR: mips32_op = OPC_SWR; goto do_st_lr; #if defined(TARGET_MIPS64) case LDL: mips32_op = OPC_LDL; goto do_ld_lr; case SDL: mips32_op = OPC_SDL; goto do_st_lr; case LDR: mips32_op = OPC_LDR; goto do_ld_lr; case SDR: mips32_op = OPC_SDR; goto do_st_lr; case LWU: mips32_op = OPC_LWU; goto do_ld_lr; case LLD: mips32_op = OPC_LLD; goto do_ld_lr; #endif case LL: mips32_op = OPC_LL; goto do_ld_lr; do_ld_lr: gen_ld(env, ctx, mips32_op, rt, rs, SIMM(ctx->opcode, 0, 12)); break; do_st_lr: gen_st(ctx, mips32_op, rt, rs, SIMM(ctx->opcode, 0, 12)); break; case SC: gen_st_cond(ctx, OPC_SC, rt, rs, SIMM(ctx->opcode, 0, 12)); break; #if defined(TARGET_MIPS64) case SCD: gen_st_cond(ctx, OPC_SCD, rt, rs, SIMM(ctx->opcode, 0, 12)); break; #endif case PREF: /* Treat as no-op */ break; default: MIPS_INVAL("pool32c"); generate_exception(ctx, EXCP_RI); break; } break; case ADDI32: mips32_op = OPC_ADDI; goto do_addi; case ADDIU32: mips32_op = OPC_ADDIU; do_addi: gen_arith_imm(env, ctx, mips32_op, rt, rs, imm); break; /* Logical operations */ case ORI32: mips32_op = OPC_ORI; goto do_logici; case XORI32: mips32_op = OPC_XORI; goto do_logici; case ANDI32: mips32_op = OPC_ANDI; do_logici: gen_logic_imm(env, mips32_op, rt, rs, imm); break; /* Set less than immediate */ case SLTI32: mips32_op = OPC_SLTI; goto do_slti; case SLTIU32: mips32_op = OPC_SLTIU; do_slti: gen_slt_imm(env, mips32_op, rt, rs, imm); break; case JALX32: offset = (int32_t)(ctx->opcode & 0x3FFFFFF) << 2; gen_compute_branch(ctx, OPC_JALX, 4, rt, rs, offset); *is_branch = 1; break; case JALS32: offset = (int32_t)(ctx->opcode & 0x3FFFFFF) << 1; gen_compute_branch(ctx, OPC_JALS, 4, rt, rs, offset); *is_branch = 1; break; case BEQ32: gen_compute_branch(ctx, OPC_BEQ, 4, rt, rs, imm << 1); *is_branch = 1; break; case BNE32: gen_compute_branch(ctx, OPC_BNE, 4, rt, rs, imm << 1); *is_branch = 1; break; case J32: gen_compute_branch(ctx, OPC_J, 4, rt, rs, (int32_t)(ctx->opcode & 0x3FFFFFF) << 1); *is_branch = 1; break; case JAL32: gen_compute_branch(ctx, OPC_JAL, 4, rt, rs, (int32_t)(ctx->opcode & 0x3FFFFFF) << 1); *is_branch = 1; break; /* Floating point (COP1) */ case LWC132: mips32_op = OPC_LWC1; goto do_cop1; case LDC132: mips32_op = OPC_LDC1; goto do_cop1; case SWC132: mips32_op = OPC_SWC1; goto do_cop1; case SDC132: mips32_op = OPC_SDC1; do_cop1: gen_cop1_ldst(env, ctx, mips32_op, rt, rs, imm); break; case ADDIUPC: { int reg = mmreg(ZIMM(ctx->opcode, 23, 3)); int offset = SIMM(ctx->opcode, 0, 23) << 2; gen_addiupc(ctx, reg, offset, 0, 0); } break; /* Loads and stores */ case LB32: mips32_op = OPC_LB; goto do_ld; case LBU32: mips32_op = OPC_LBU; goto do_ld; case LH32: mips32_op = OPC_LH; goto do_ld; case LHU32: mips32_op = OPC_LHU; goto do_ld; case LW32: mips32_op = OPC_LW; goto do_ld; #ifdef TARGET_MIPS64 case LD32: mips32_op = OPC_LD; goto do_ld; case SD32: mips32_op = OPC_SD; goto do_st; #endif case SB32: mips32_op = OPC_SB; goto do_st; case SH32: mips32_op = OPC_SH; goto do_st; case SW32: mips32_op = OPC_SW; goto do_st; do_ld: gen_ld(env, ctx, mips32_op, rt, rs, imm); break; do_st: gen_st(ctx, mips32_op, rt, rs, imm); break; default: generate_exception(ctx, EXCP_RI); break; } } static int decode_micromips_opc (CPUState *env, DisasContext *ctx, int *is_branch) { uint32_t op; /* make sure instructions are on a halfword boundary */ if (ctx->pc & 0x1) { env->CP0_BadVAddr = ctx->pc; generate_exception(ctx, EXCP_AdEL); ctx->bstate = BS_STOP; return 2; } op = (ctx->opcode >> 10) & 0x3f; /* Enforce properly-sized instructions in a delay slot */ if (ctx->hflags & MIPS_HFLAG_BMASK) { int bits = ctx->hflags & MIPS_HFLAG_BMASK_EXT; switch (op) { case POOL32A: case POOL32B: case POOL32I: case POOL32C: case ADDI32: case ADDIU32: case ORI32: case XORI32: case SLTI32: case SLTIU32: case ANDI32: case JALX32: case LBU32: case LHU32: case POOL32F: case JALS32: case BEQ32: case BNE32: case J32: case JAL32: case SB32: case SH32: case POOL32S: case ADDIUPC: case SWC132: case SDC132: case SD32: case SW32: case LB32: case LH32: case DADDIU32: case POOL48A: /* ??? */ case LWC132: case LDC132: case LD32: case LW32: if (bits & MIPS_HFLAG_BDS16) { generate_exception(ctx, EXCP_RI); /* Just stop translation; the user is confused. */ ctx->bstate = BS_STOP; return 2; } break; case POOL16A: case POOL16B: case POOL16C: case LWGP16: case POOL16F: case LBU16: case LHU16: case LWSP16: case LW16: case SB16: case SH16: case SWSP16: case SW16: case MOVE16: case ANDI16: case POOL16D: case POOL16E: case BEQZ16: case BNEZ16: case B16: case LI16: if (bits & MIPS_HFLAG_BDS32) { generate_exception(ctx, EXCP_RI); /* Just stop translation; the user is confused. */ ctx->bstate = BS_STOP; return 2; } break; default: break; } } switch (op) { case POOL16A: { int rd = mmreg(uMIPS_RD(ctx->opcode)); int rs1 = mmreg(uMIPS_RS1(ctx->opcode)); int rs2 = mmreg(uMIPS_RS2(ctx->opcode)); uint32_t opc = 0; switch (ctx->opcode & 0x1) { case ADDU16: opc = OPC_ADDU; break; case SUBU16: opc = OPC_SUBU; break; } gen_arith(env, ctx, opc, rd, rs1, rs2); } break; case POOL16B: { int rd = mmreg(uMIPS_RD(ctx->opcode)); int rs = mmreg(uMIPS_RS(ctx->opcode)); int amount = (ctx->opcode >> 1) & 0x7; uint32_t opc = 0; amount = amount == 0 ? 8 : amount; switch (ctx->opcode & 0x1) { case SLL16: opc = OPC_SLL; break; case SRL16: opc = OPC_SRL; break; } gen_shift_imm(env, ctx, opc, rd, rs, amount); } break; case POOL16C: gen_pool16c_insn(env, ctx, is_branch); break; case LWGP16: { int rd = mmreg(uMIPS_RD(ctx->opcode)); int rb = 28; /* GP */ int16_t offset = SIMM(ctx->opcode, 0, 7) << 2; gen_ld(env, ctx, OPC_LW, rd, rb, offset); } break; case POOL16F: if (ctx->opcode & 1) { generate_exception(ctx, EXCP_RI); } else { /* MOVEP */ int enc_dest = uMIPS_RD(ctx->opcode); int enc_rt = uMIPS_RS2(ctx->opcode); int enc_rs = uMIPS_RS1(ctx->opcode); int rd, rs, re, rt; static const int rd_enc[] = { 5, 5, 6, 4, 4, 4, 4, 4 }; static const int re_enc[] = { 6, 7, 7, 21, 22, 5, 6, 7 }; static const int rs_rt_enc[] = { 0, 17, 2, 3, 16, 18, 19, 20 }; rd = rd_enc[enc_dest]; re = re_enc[enc_dest]; rs = rs_rt_enc[enc_rs]; rt = rs_rt_enc[enc_rt]; gen_arith_imm(env, ctx, OPC_ADDIU, rd, rs, 0); gen_arith_imm(env, ctx, OPC_ADDIU, re, rt, 0); } break; case LBU16: { int rd = mmreg(uMIPS_RD(ctx->opcode)); int rb = mmreg(uMIPS_RS(ctx->opcode)); int16_t offset = ZIMM(ctx->opcode, 0, 4); offset = (offset == 0xf ? -1 : offset); gen_ld(env, ctx, OPC_LBU, rd, rb, offset); } break; case LHU16: { int rd = mmreg(uMIPS_RD(ctx->opcode)); int rb = mmreg(uMIPS_RS(ctx->opcode)); int16_t offset = ZIMM(ctx->opcode, 0, 4) << 1; gen_ld(env, ctx, OPC_LHU, rd, rb, offset); } break; case LWSP16: { int rd = (ctx->opcode >> 5) & 0x1f; int rb = 29; /* SP */ int16_t offset = ZIMM(ctx->opcode, 0, 5) << 2; gen_ld(env, ctx, OPC_LW, rd, rb, offset); } break; case LW16: { int rd = mmreg(uMIPS_RD(ctx->opcode)); int rb = mmreg(uMIPS_RS(ctx->opcode)); int16_t offset = ZIMM(ctx->opcode, 0, 4) << 2; gen_ld(env, ctx, OPC_LW, rd, rb, offset); } break; case SB16: { int rd = mmreg2(uMIPS_RD(ctx->opcode)); int rb = mmreg(uMIPS_RS(ctx->opcode)); int16_t offset = ZIMM(ctx->opcode, 0, 4); gen_st(ctx, OPC_SB, rd, rb, offset); } break; case SH16: { int rd = mmreg2(uMIPS_RD(ctx->opcode)); int rb = mmreg(uMIPS_RS(ctx->opcode)); int16_t offset = ZIMM(ctx->opcode, 0, 4) << 1; gen_st(ctx, OPC_SH, rd, rb, offset); } break; case SWSP16: { int rd = (ctx->opcode >> 5) & 0x1f; int rb = 29; /* SP */ int16_t offset = ZIMM(ctx->opcode, 0, 5) << 2; gen_st(ctx, OPC_SW, rd, rb, offset); } break; case SW16: { int rd = mmreg2(uMIPS_RD(ctx->opcode)); int rb = mmreg(uMIPS_RS(ctx->opcode)); int16_t offset = ZIMM(ctx->opcode, 0, 4) << 2; gen_st(ctx, OPC_SW, rd, rb, offset); } break; case MOVE16: { int rd = uMIPS_RD5(ctx->opcode); int rs = uMIPS_RS5(ctx->opcode); gen_arith_imm(env, ctx, OPC_ADDIU, rd, rs, 0); } break; case ANDI16: gen_andi16(env, ctx); break; case POOL16D: switch (ctx->opcode & 0x1) { case ADDIUS5: gen_addius5(env, ctx); break; case ADDIUSP: gen_addiusp(env, ctx); break; } break; case POOL16E: switch (ctx->opcode & 0x1) { case ADDIUR2: gen_addiur2(env, ctx); break; case ADDIUR1SP: gen_addiur1sp(env, ctx); break; } break; case B16: gen_compute_branch(ctx, OPC_BEQ, 2, 0, 0, SIMM(ctx->opcode, 0, 10) << 1); *is_branch = 1; break; case BNEZ16: case BEQZ16: gen_compute_branch(ctx, op == BNEZ16 ? OPC_BNE : OPC_BEQ, 2, mmreg(uMIPS_RD(ctx->opcode)), 0, SIMM(ctx->opcode, 0, 7) << 1); *is_branch = 1; break; case LI16: { int reg = mmreg(uMIPS_RD(ctx->opcode)); int imm = ZIMM(ctx->opcode, 0, 7); imm = (imm == 0x7f ? -1 : imm); tcg_gen_movi_tl(cpu_gpr[reg], imm); } break; case RES_20: case RES_28: case RES_29: case RES_30: case RES_31: case RES_38: case RES_39: generate_exception(ctx, EXCP_RI); break; default: decode_micromips32_opc (env, ctx, op, is_branch); return 4; } return 2; } /* SmartMIPS extension to MIPS32 */ #if defined(TARGET_MIPS64) /* MDMX extension to MIPS64 */ #endif static void decode_opc (CPUState *env, DisasContext *ctx, int *is_branch) { int32_t offset; int rs, rt, rd, sa; uint32_t op, op1, op2; int16_t imm; /* make sure instructions are on a word boundary */ if (ctx->pc & 0x3) { env->CP0_BadVAddr = ctx->pc; generate_exception(ctx, EXCP_AdEL); return; } /* Handle blikely not taken case */ if ((ctx->hflags & MIPS_HFLAG_BMASK_BASE) == MIPS_HFLAG_BL) { int l1 = gen_new_label(); MIPS_DEBUG("blikely condition (" TARGET_FMT_lx ")", ctx->pc + 4); tcg_gen_brcondi_tl(TCG_COND_NE, bcond, 0, l1); tcg_gen_movi_i32(hflags, ctx->hflags & ~MIPS_HFLAG_BMASK); gen_goto_tb(ctx, 1, ctx->pc + 4); gen_set_label(l1); } if (unlikely(qemu_loglevel_mask(CPU_LOG_TB_OP))) tcg_gen_debug_insn_start(ctx->pc); op = MASK_OP_MAJOR(ctx->opcode); rs = (ctx->opcode >> 21) & 0x1f; rt = (ctx->opcode >> 16) & 0x1f; rd = (ctx->opcode >> 11) & 0x1f; sa = (ctx->opcode >> 6) & 0x1f; imm = (int16_t)ctx->opcode; switch (op) { case OPC_SPECIAL: op1 = MASK_SPECIAL(ctx->opcode); switch (op1) { case OPC_SLL: /* Shift with immediate */ case OPC_SRA: gen_shift_imm(env, ctx, op1, rd, rt, sa); break; case OPC_SRL: switch ((ctx->opcode >> 21) & 0x1f) { case 1: /* rotr is decoded as srl on non-R2 CPUs */ if (env->insn_flags & ISA_MIPS32R2) { op1 = OPC_ROTR; } /* Fallthrough */ case 0: gen_shift_imm(env, ctx, op1, rd, rt, sa); break; default: generate_exception(ctx, EXCP_RI); break; } break; case OPC_MOVN: /* Conditional move */ case OPC_MOVZ: check_insn(env, ctx, ISA_MIPS4 | ISA_MIPS32 | INSN_LOONGSON2E | INSN_LOONGSON2F); gen_cond_move(env, op1, rd, rs, rt); break; case OPC_ADD ... OPC_SUBU: gen_arith(env, ctx, op1, rd, rs, rt); break; case OPC_SLLV: /* Shifts */ case OPC_SRAV: gen_shift(env, ctx, op1, rd, rs, rt); break; case OPC_SRLV: switch ((ctx->opcode >> 6) & 0x1f) { case 1: /* rotrv is decoded as srlv on non-R2 CPUs */ if (env->insn_flags & ISA_MIPS32R2) { op1 = OPC_ROTRV; } /* Fallthrough */ case 0: gen_shift(env, ctx, op1, rd, rs, rt); break; default: generate_exception(ctx, EXCP_RI); break; } break; case OPC_SLT: /* Set on less than */ case OPC_SLTU: gen_slt(env, op1, rd, rs, rt); break; case OPC_AND: /* Logic*/ case OPC_OR: case OPC_NOR: case OPC_XOR: gen_logic(env, op1, rd, rs, rt); break; case OPC_MULT ... OPC_DIVU: if (sa) { check_insn(env, ctx, INSN_VR54XX); op1 = MASK_MUL_VR54XX(ctx->opcode); gen_mul_vr54xx(ctx, op1, rd, rs, rt); } else gen_muldiv(ctx, op1, rs, rt); break; case OPC_JR ... OPC_JALR: gen_compute_branch(ctx, op1, 4, rs, rd, sa); *is_branch = 1; break; case OPC_TGE ... OPC_TEQ: /* Traps */ case OPC_TNE: gen_trap(ctx, op1, rs, rt, -1); break; case OPC_MFHI: /* Move from HI/LO */ case OPC_MFLO: gen_HILO(ctx, op1, rd); break; case OPC_MTHI: case OPC_MTLO: /* Move to HI/LO */ gen_HILO(ctx, op1, rs); break; case OPC_PMON: /* Pmon entry point, also R4010 selsl */ #ifdef MIPS_STRICT_STANDARD MIPS_INVAL("PMON / selsl"); generate_exception(ctx, EXCP_RI); #else gen_helper_0i(pmon, sa); #endif break; case OPC_SYSCALL: generate_exception(ctx, EXCP_SYSCALL); ctx->bstate = BS_STOP; break; case OPC_BREAK: generate_exception(ctx, EXCP_BREAK); break; case OPC_SPIM: #ifdef MIPS_STRICT_STANDARD MIPS_INVAL("SPIM"); generate_exception(ctx, EXCP_RI); #else /* Implemented as RI exception for now. */ MIPS_INVAL("spim (unofficial)"); generate_exception(ctx, EXCP_RI); #endif break; case OPC_SYNC: /* Treat as NOP. */ break; case OPC_MOVCI: check_insn(env, ctx, ISA_MIPS4 | ISA_MIPS32); if (env->CP0_Config1 & (1 << CP0C1_FP)) { check_cp1_enabled(ctx); gen_movci(ctx, rd, rs, (ctx->opcode >> 18) & 0x7, (ctx->opcode >> 16) & 1); } else { generate_exception_err(ctx, EXCP_CpU, 1); } break; #if defined(TARGET_MIPS64) /* MIPS64 specific opcodes */ case OPC_DSLL: case OPC_DSRA: case OPC_DSLL32: case OPC_DSRA32: check_insn(env, ctx, ISA_MIPS3); check_mips_64(ctx); gen_shift_imm(env, ctx, op1, rd, rt, sa); break; case OPC_DSRL: switch ((ctx->opcode >> 21) & 0x1f) { case 1: /* drotr is decoded as dsrl on non-R2 CPUs */ if (env->insn_flags & ISA_MIPS32R2) { op1 = OPC_DROTR; } /* Fallthrough */ case 0: check_insn(env, ctx, ISA_MIPS3); check_mips_64(ctx); gen_shift_imm(env, ctx, op1, rd, rt, sa); break; default: generate_exception(ctx, EXCP_RI); break; } break; case OPC_DSRL32: switch ((ctx->opcode >> 21) & 0x1f) { case 1: /* drotr32 is decoded as dsrl32 on non-R2 CPUs */ if (env->insn_flags & ISA_MIPS32R2) { op1 = OPC_DROTR32; } /* Fallthrough */ case 0: check_insn(env, ctx, ISA_MIPS3); check_mips_64(ctx); gen_shift_imm(env, ctx, op1, rd, rt, sa); break; default: generate_exception(ctx, EXCP_RI); break; } break; case OPC_DADD ... OPC_DSUBU: check_insn(env, ctx, ISA_MIPS3); check_mips_64(ctx); gen_arith(env, ctx, op1, rd, rs, rt); break; case OPC_DSLLV: case OPC_DSRAV: check_insn(env, ctx, ISA_MIPS3); check_mips_64(ctx); gen_shift(env, ctx, op1, rd, rs, rt); break; case OPC_DSRLV: switch ((ctx->opcode >> 6) & 0x1f) { case 1: /* drotrv is decoded as dsrlv on non-R2 CPUs */ if (env->insn_flags & ISA_MIPS32R2) { op1 = OPC_DROTRV; } /* Fallthrough */ case 0: check_insn(env, ctx, ISA_MIPS3); check_mips_64(ctx); gen_shift(env, ctx, op1, rd, rs, rt); break; default: generate_exception(ctx, EXCP_RI); break; } break; case OPC_DMULT ... OPC_DDIVU: check_insn(env, ctx, ISA_MIPS3); check_mips_64(ctx); gen_muldiv(ctx, op1, rs, rt); break; #endif default: /* Invalid */ MIPS_INVAL("special"); generate_exception(ctx, EXCP_RI); break; } break; case OPC_SPECIAL2: op1 = MASK_SPECIAL2(ctx->opcode); switch (op1) { case OPC_MADD ... OPC_MADDU: /* Multiply and add/sub */ case OPC_MSUB ... OPC_MSUBU: check_insn(env, ctx, ISA_MIPS32); gen_muldiv(ctx, op1, rs, rt); break; case OPC_MUL: gen_arith(env, ctx, op1, rd, rs, rt); break; case OPC_CLO: case OPC_CLZ: check_insn(env, ctx, ISA_MIPS32); gen_cl(ctx, op1, rd, rs); break; case OPC_SDBBP: /* XXX: not clear which exception should be raised * when in debug mode... */ check_insn(env, ctx, ISA_MIPS32); if (!(ctx->hflags & MIPS_HFLAG_DM)) { generate_exception(ctx, EXCP_DBp); } else { generate_exception(ctx, EXCP_DBp); } /* Treat as NOP. */ break; case OPC_DIV_G_2F: case OPC_DIVU_G_2F: case OPC_MULT_G_2F: case OPC_MULTU_G_2F: case OPC_MOD_G_2F: case OPC_MODU_G_2F: check_insn(env, ctx, INSN_LOONGSON2F); gen_loongson_integer(ctx, op1, rd, rs, rt); break; #if defined(TARGET_MIPS64) case OPC_DCLO: case OPC_DCLZ: check_insn(env, ctx, ISA_MIPS64); check_mips_64(ctx); gen_cl(ctx, op1, rd, rs); break; case OPC_DMULT_G_2F: case OPC_DMULTU_G_2F: case OPC_DDIV_G_2F: case OPC_DDIVU_G_2F: case OPC_DMOD_G_2F: case OPC_DMODU_G_2F: check_insn(env, ctx, INSN_LOONGSON2F); gen_loongson_integer(ctx, op1, rd, rs, rt); break; #endif default: /* Invalid */ MIPS_INVAL("special2"); generate_exception(ctx, EXCP_RI); break; } break; case OPC_SPECIAL3: op1 = MASK_SPECIAL3(ctx->opcode); switch (op1) { case OPC_EXT: case OPC_INS: check_insn(env, ctx, ISA_MIPS32R2); gen_bitops(ctx, op1, rt, rs, sa, rd); break; case OPC_BSHFL: check_insn(env, ctx, ISA_MIPS32R2); op2 = MASK_BSHFL(ctx->opcode); gen_bshfl(ctx, op2, rt, rd); break; case OPC_RDHWR: gen_rdhwr(env, ctx, rt, rd); break; case OPC_FORK: check_insn(env, ctx, ASE_MT); { TCGv t0 = tcg_temp_new(); TCGv t1 = tcg_temp_new(); gen_load_gpr(t0, rt); gen_load_gpr(t1, rs); gen_helper_fork(t0, t1); tcg_temp_free(t0); tcg_temp_free(t1); } break; case OPC_YIELD: check_insn(env, ctx, ASE_MT); { TCGv t0 = tcg_temp_new(); save_cpu_state(ctx, 1); gen_load_gpr(t0, rs); gen_helper_yield(t0, t0); gen_store_gpr(t0, rd); tcg_temp_free(t0); } break; case OPC_DIV_G_2E ... OPC_DIVU_G_2E: case OPC_MULT_G_2E ... OPC_MULTU_G_2E: case OPC_MOD_G_2E ... OPC_MODU_G_2E: check_insn(env, ctx, INSN_LOONGSON2E); gen_loongson_integer(ctx, op1, rd, rs, rt); break; #if defined(TARGET_MIPS64) case OPC_DEXTM ... OPC_DEXT: case OPC_DINSM ... OPC_DINS: check_insn(env, ctx, ISA_MIPS64R2); check_mips_64(ctx); gen_bitops(ctx, op1, rt, rs, sa, rd); break; case OPC_DBSHFL: check_insn(env, ctx, ISA_MIPS64R2); check_mips_64(ctx); op2 = MASK_DBSHFL(ctx->opcode); gen_bshfl(ctx, op2, rt, rd); break; case OPC_DDIV_G_2E ... OPC_DDIVU_G_2E: case OPC_DMULT_G_2E ... OPC_DMULTU_G_2E: case OPC_DMOD_G_2E ... OPC_DMODU_G_2E: check_insn(env, ctx, INSN_LOONGSON2E); gen_loongson_integer(ctx, op1, rd, rs, rt); break; #endif default: /* Invalid */ MIPS_INVAL("special3"); generate_exception(ctx, EXCP_RI); break; } break; case OPC_REGIMM: op1 = MASK_REGIMM(ctx->opcode); switch (op1) { case OPC_BLTZ ... OPC_BGEZL: /* REGIMM branches */ case OPC_BLTZAL ... OPC_BGEZALL: gen_compute_branch(ctx, op1, 4, rs, -1, imm << 2); *is_branch = 1; break; case OPC_TGEI ... OPC_TEQI: /* REGIMM traps */ case OPC_TNEI: gen_trap(ctx, op1, rs, -1, imm); break; case OPC_SYNCI: check_insn(env, ctx, ISA_MIPS32R2); /* Treat as NOP. */ break; default: /* Invalid */ MIPS_INVAL("regimm"); generate_exception(ctx, EXCP_RI); break; } break; case OPC_CP0: check_cp0_enabled(ctx); op1 = MASK_CP0(ctx->opcode); switch (op1) { case OPC_MFC0: case OPC_MTC0: case OPC_MFTR: case OPC_MTTR: #if defined(TARGET_MIPS64) case OPC_DMFC0: case OPC_DMTC0: #endif #ifndef CONFIG_USER_ONLY gen_cp0(env, ctx, op1, rt, rd); #endif /* !CONFIG_USER_ONLY */ break; case OPC_C0_FIRST ... OPC_C0_LAST: #ifndef CONFIG_USER_ONLY gen_cp0(env, ctx, MASK_C0(ctx->opcode), rt, rd); #endif /* !CONFIG_USER_ONLY */ break; case OPC_MFMC0: #ifndef CONFIG_USER_ONLY { TCGv t0 = tcg_temp_new(); op2 = MASK_MFMC0(ctx->opcode); switch (op2) { case OPC_DMT: check_insn(env, ctx, ASE_MT); gen_helper_dmt(t0); gen_store_gpr(t0, rt); break; case OPC_EMT: check_insn(env, ctx, ASE_MT); gen_helper_emt(t0); gen_store_gpr(t0, rt); break; case OPC_DVPE: check_insn(env, ctx, ASE_MT); gen_helper_dvpe(t0); gen_store_gpr(t0, rt); break; case OPC_EVPE: check_insn(env, ctx, ASE_MT); gen_helper_evpe(t0); gen_store_gpr(t0, rt); break; case OPC_DI: check_insn(env, ctx, ISA_MIPS32R2); save_cpu_state(ctx, 1); gen_helper_di(t0); gen_store_gpr(t0, rt); /* Stop translation as we may have switched the execution mode */ ctx->bstate = BS_STOP; break; case OPC_EI: check_insn(env, ctx, ISA_MIPS32R2); save_cpu_state(ctx, 1); gen_helper_ei(t0); gen_store_gpr(t0, rt); /* Stop translation as we may have switched the execution mode */ ctx->bstate = BS_STOP; break; default: /* Invalid */ MIPS_INVAL("mfmc0"); generate_exception(ctx, EXCP_RI); break; } tcg_temp_free(t0); } #endif /* !CONFIG_USER_ONLY */ break; case OPC_RDPGPR: check_insn(env, ctx, ISA_MIPS32R2); gen_load_srsgpr(rt, rd); break; case OPC_WRPGPR: check_insn(env, ctx, ISA_MIPS32R2); gen_store_srsgpr(rt, rd); break; default: MIPS_INVAL("cp0"); generate_exception(ctx, EXCP_RI); break; } break; case OPC_ADDI: /* Arithmetic with immediate opcode */ case OPC_ADDIU: gen_arith_imm(env, ctx, op, rt, rs, imm); break; case OPC_SLTI: /* Set on less than with immediate opcode */ case OPC_SLTIU: gen_slt_imm(env, op, rt, rs, imm); break; case OPC_ANDI: /* Arithmetic with immediate opcode */ case OPC_LUI: case OPC_ORI: case OPC_XORI: gen_logic_imm(env, op, rt, rs, imm); break; case OPC_J ... OPC_JAL: /* Jump */ offset = (int32_t)(ctx->opcode & 0x3FFFFFF) << 2; gen_compute_branch(ctx, op, 4, rs, rt, offset); *is_branch = 1; break; case OPC_BEQ ... OPC_BGTZ: /* Branch */ case OPC_BEQL ... OPC_BGTZL: gen_compute_branch(ctx, op, 4, rs, rt, imm << 2); *is_branch = 1; break; case OPC_LB ... OPC_LWR: /* Load and stores */ case OPC_LL: gen_ld(env, ctx, op, rt, rs, imm); break; case OPC_SB ... OPC_SW: case OPC_SWR: gen_st(ctx, op, rt, rs, imm); break; case OPC_SC: gen_st_cond(ctx, op, rt, rs, imm); break; case OPC_CACHE: check_insn(env, ctx, ISA_MIPS3 | ISA_MIPS32); /* Treat as NOP. */ break; case OPC_PREF: check_insn(env, ctx, ISA_MIPS4 | ISA_MIPS32); /* Treat as NOP. */ break; /* Floating point (COP1). */ case OPC_LWC1: case OPC_LDC1: case OPC_SWC1: case OPC_SDC1: gen_cop1_ldst(env, ctx, op, rt, rs, imm); break; case OPC_CP1: if (env->CP0_Config1 & (1 << CP0C1_FP)) { check_cp1_enabled(ctx); op1 = MASK_CP1(ctx->opcode); switch (op1) { case OPC_MFHC1: case OPC_MTHC1: check_insn(env, ctx, ISA_MIPS32R2); case OPC_MFC1: case OPC_CFC1: case OPC_MTC1: case OPC_CTC1: gen_cp1(ctx, op1, rt, rd); break; #if defined(TARGET_MIPS64) case OPC_DMFC1: case OPC_DMTC1: check_insn(env, ctx, ISA_MIPS3); gen_cp1(ctx, op1, rt, rd); break; #endif case OPC_BC1ANY2: case OPC_BC1ANY4: check_cop1x(ctx); check_insn(env, ctx, ASE_MIPS3D); /* fall through */ case OPC_BC1: gen_compute_branch1(env, ctx, MASK_BC1(ctx->opcode), (rt >> 2) & 0x7, imm << 2); *is_branch = 1; break; case OPC_S_FMT: case OPC_D_FMT: case OPC_W_FMT: case OPC_L_FMT: case OPC_PS_FMT: gen_farith(ctx, ctx->opcode & FOP(0x3f, 0x1f), rt, rd, sa, (imm >> 8) & 0x7); break; default: MIPS_INVAL("cp1"); generate_exception (ctx, EXCP_RI); break; } } else { generate_exception_err(ctx, EXCP_CpU, 1); } break; /* COP2. */ case OPC_LWC2: case OPC_LDC2: case OPC_SWC2: case OPC_SDC2: case OPC_CP2: /* COP2: Not implemented. */ generate_exception_err(ctx, EXCP_CpU, 2); break; case OPC_CP3: if (env->CP0_Config1 & (1 << CP0C1_FP)) { check_cp1_enabled(ctx); op1 = MASK_CP3(ctx->opcode); switch (op1) { case OPC_LWXC1: case OPC_LDXC1: case OPC_LUXC1: case OPC_SWXC1: case OPC_SDXC1: case OPC_SUXC1: gen_flt3_ldst(ctx, op1, sa, rd, rs, rt); break; case OPC_PREFX: /* Treat as NOP. */ break; case OPC_ALNV_PS: case OPC_MADD_S: case OPC_MADD_D: case OPC_MADD_PS: case OPC_MSUB_S: case OPC_MSUB_D: case OPC_MSUB_PS: case OPC_NMADD_S: case OPC_NMADD_D: case OPC_NMADD_PS: case OPC_NMSUB_S: case OPC_NMSUB_D: case OPC_NMSUB_PS: gen_flt3_arith(ctx, op1, sa, rs, rd, rt); break; default: MIPS_INVAL("cp3"); generate_exception (ctx, EXCP_RI); break; } } else { generate_exception_err(ctx, EXCP_CpU, 1); } break; #if defined(TARGET_MIPS64) /* MIPS64 opcodes */ case OPC_LWU: case OPC_LDL ... OPC_LDR: case OPC_LLD: case OPC_LD: check_insn(env, ctx, ISA_MIPS3); check_mips_64(ctx); gen_ld(env, ctx, op, rt, rs, imm); break; case OPC_SDL ... OPC_SDR: case OPC_SD: check_insn(env, ctx, ISA_MIPS3); check_mips_64(ctx); gen_st(ctx, op, rt, rs, imm); break; case OPC_SCD: check_insn(env, ctx, ISA_MIPS3); check_mips_64(ctx); gen_st_cond(ctx, op, rt, rs, imm); break; case OPC_DADDI: case OPC_DADDIU: check_insn(env, ctx, ISA_MIPS3); check_mips_64(ctx); gen_arith_imm(env, ctx, op, rt, rs, imm); break; #endif case OPC_JALX: check_insn(env, ctx, ASE_MIPS16 | ASE_MICROMIPS); offset = (int32_t)(ctx->opcode & 0x3FFFFFF) << 2; gen_compute_branch(ctx, op, 4, rs, rt, offset); *is_branch = 1; break; case OPC_MDMX: check_insn(env, ctx, ASE_MDMX); /* MDMX: Not implemented. */ default: /* Invalid */ MIPS_INVAL("major opcode"); generate_exception(ctx, EXCP_RI); break; } } static inline void gen_intermediate_code_internal (CPUState *env, TranslationBlock *tb, int search_pc) { DisasContext ctx; target_ulong pc_start; uint16_t *gen_opc_end; CPUBreakpoint *bp; int j, lj = -1; int num_insns; int max_insns; int insn_bytes; int is_branch; if (search_pc) qemu_log("search pc %d\n", search_pc); pc_start = tb->pc; gen_opc_end = gen_opc_buf + OPC_MAX_SIZE; ctx.pc = pc_start; ctx.saved_pc = -1; ctx.singlestep_enabled = env->singlestep_enabled; ctx.tb = tb; ctx.bstate = BS_NONE; /* Restore delay slot state from the tb context. */ ctx.hflags = (uint32_t)tb->flags; /* FIXME: maybe use 64 bits here? */ restore_cpu_state(env, &ctx); #ifdef CONFIG_USER_ONLY ctx.mem_idx = MIPS_HFLAG_UM; #else ctx.mem_idx = ctx.hflags & MIPS_HFLAG_KSU; #endif num_insns = 0; max_insns = tb->cflags & CF_COUNT_MASK; if (max_insns == 0) max_insns = CF_COUNT_MASK; LOG_DISAS("\ntb %p idx %d hflags %04x\n", tb, ctx.mem_idx, ctx.hflags); gen_icount_start(); while (ctx.bstate == BS_NONE) { if (unlikely(!QTAILQ_EMPTY(&env->breakpoints))) { QTAILQ_FOREACH(bp, &env->breakpoints, entry) { if (bp->pc == ctx.pc) { save_cpu_state(&ctx, 1); ctx.bstate = BS_BRANCH; gen_helper_0i(raise_exception, EXCP_DEBUG); /* Include the breakpoint location or the tb won't * be flushed when it must be. */ ctx.pc += 4; goto done_generating; } } } if (search_pc) { j = gen_opc_ptr - gen_opc_buf; if (lj < j) { lj++; while (lj < j) gen_opc_instr_start[lj++] = 0; } gen_opc_pc[lj] = ctx.pc; gen_opc_hflags[lj] = ctx.hflags & MIPS_HFLAG_BMASK; gen_opc_instr_start[lj] = 1; gen_opc_icount[lj] = num_insns; } if (num_insns + 1 == max_insns && (tb->cflags & CF_LAST_IO)) gen_io_start(); is_branch = 0; if (!(ctx.hflags & MIPS_HFLAG_M16)) { ctx.opcode = ldl_code(ctx.pc); insn_bytes = 4; decode_opc(env, &ctx, &is_branch); } else if (env->insn_flags & ASE_MICROMIPS) { ctx.opcode = lduw_code(ctx.pc); insn_bytes = decode_micromips_opc(env, &ctx, &is_branch); } else if (env->insn_flags & ASE_MIPS16) { ctx.opcode = lduw_code(ctx.pc); insn_bytes = decode_mips16_opc(env, &ctx, &is_branch); } else { generate_exception(&ctx, EXCP_RI); ctx.bstate = BS_STOP; break; } if (!is_branch) { handle_delay_slot(env, &ctx, insn_bytes); } ctx.pc += insn_bytes; num_insns++; /* Execute a branch and its delay slot as a single instruction. This is what GDB expects and is consistent with what the hardware does (e.g. if a delay slot instruction faults, the reported PC is the PC of the branch). */ if (env->singlestep_enabled && (ctx.hflags & MIPS_HFLAG_BMASK) == 0) break; if ((ctx.pc & (TARGET_PAGE_SIZE - 1)) == 0) break; if (gen_opc_ptr >= gen_opc_end) break; if (num_insns >= max_insns) break; if (singlestep) break; } if (tb->cflags & CF_LAST_IO) gen_io_end(); if (env->singlestep_enabled && ctx.bstate != BS_BRANCH) { save_cpu_state(&ctx, ctx.bstate == BS_NONE); gen_helper_0i(raise_exception, EXCP_DEBUG); } else { switch (ctx.bstate) { case BS_STOP: gen_goto_tb(&ctx, 0, ctx.pc); break; case BS_NONE: save_cpu_state(&ctx, 0); gen_goto_tb(&ctx, 0, ctx.pc); break; case BS_EXCP: tcg_gen_exit_tb(0); break; case BS_BRANCH: default: break; } } done_generating: gen_icount_end(tb, num_insns); *gen_opc_ptr = INDEX_op_end; if (search_pc) { j = gen_opc_ptr - gen_opc_buf; lj++; while (lj <= j) gen_opc_instr_start[lj++] = 0; } else { tb->size = ctx.pc - pc_start; tb->icount = num_insns; } #ifdef DEBUG_DISAS LOG_DISAS("\n"); if (qemu_loglevel_mask(CPU_LOG_TB_IN_ASM)) { qemu_log("IN: %s\n", lookup_symbol(pc_start)); log_target_disas(pc_start, ctx.pc - pc_start, 0); qemu_log("\n"); } #endif } void gen_intermediate_code (CPUState *env, struct TranslationBlock *tb) { gen_intermediate_code_internal(env, tb, 0); } void gen_intermediate_code_pc (CPUState *env, struct TranslationBlock *tb) { gen_intermediate_code_internal(env, tb, 1); } static void fpu_dump_state(CPUState *env, FILE *f, fprintf_function fpu_fprintf, int flags) { int i; int is_fpu64 = !!(env->hflags & MIPS_HFLAG_F64); #define printfpr(fp) \ do { \ if (is_fpu64) \ fpu_fprintf(f, "w:%08x d:%016" PRIx64 \ " fd:%13g fs:%13g psu: %13g\n", \ (fp)->w[FP_ENDIAN_IDX], (fp)->d, \ (double)(fp)->fd, \ (double)(fp)->fs[FP_ENDIAN_IDX], \ (double)(fp)->fs[!FP_ENDIAN_IDX]); \ else { \ fpr_t tmp; \ tmp.w[FP_ENDIAN_IDX] = (fp)->w[FP_ENDIAN_IDX]; \ tmp.w[!FP_ENDIAN_IDX] = ((fp) + 1)->w[FP_ENDIAN_IDX]; \ fpu_fprintf(f, "w:%08x d:%016" PRIx64 \ " fd:%13g fs:%13g psu:%13g\n", \ tmp.w[FP_ENDIAN_IDX], tmp.d, \ (double)tmp.fd, \ (double)tmp.fs[FP_ENDIAN_IDX], \ (double)tmp.fs[!FP_ENDIAN_IDX]); \ } \ } while(0) fpu_fprintf(f, "CP1 FCR0 0x%08x FCR31 0x%08x SR.FR %d fp_status 0x%02x\n", env->active_fpu.fcr0, env->active_fpu.fcr31, is_fpu64, get_float_exception_flags(&env->active_fpu.fp_status)); for (i = 0; i < 32; (is_fpu64) ? i++ : (i += 2)) { fpu_fprintf(f, "%3s: ", fregnames[i]); printfpr(&env->active_fpu.fpr[i]); } #undef printfpr } #if defined(TARGET_MIPS64) && defined(MIPS_DEBUG_SIGN_EXTENSIONS) /* Debug help: The architecture requires 32bit code to maintain proper sign-extended values on 64bit machines. */ #define SIGN_EXT_P(val) ((((val) & ~0x7fffffff) == 0) || (((val) & ~0x7fffffff) == ~0x7fffffff)) static void cpu_mips_check_sign_extensions (CPUState *env, FILE *f, fprintf_function cpu_fprintf, int flags) { int i; if (!SIGN_EXT_P(env->active_tc.PC)) cpu_fprintf(f, "BROKEN: pc=0x" TARGET_FMT_lx "\n", env->active_tc.PC); if (!SIGN_EXT_P(env->active_tc.HI[0])) cpu_fprintf(f, "BROKEN: HI=0x" TARGET_FMT_lx "\n", env->active_tc.HI[0]); if (!SIGN_EXT_P(env->active_tc.LO[0])) cpu_fprintf(f, "BROKEN: LO=0x" TARGET_FMT_lx "\n", env->active_tc.LO[0]); if (!SIGN_EXT_P(env->btarget)) cpu_fprintf(f, "BROKEN: btarget=0x" TARGET_FMT_lx "\n", env->btarget); for (i = 0; i < 32; i++) { if (!SIGN_EXT_P(env->active_tc.gpr[i])) cpu_fprintf(f, "BROKEN: %s=0x" TARGET_FMT_lx "\n", regnames[i], env->active_tc.gpr[i]); } if (!SIGN_EXT_P(env->CP0_EPC)) cpu_fprintf(f, "BROKEN: EPC=0x" TARGET_FMT_lx "\n", env->CP0_EPC); if (!SIGN_EXT_P(env->lladdr)) cpu_fprintf(f, "BROKEN: LLAddr=0x" TARGET_FMT_lx "\n", env->lladdr); } #endif void cpu_dump_state (CPUState *env, FILE *f, fprintf_function cpu_fprintf, int flags) { int i; cpu_fprintf(f, "pc=0x" TARGET_FMT_lx " HI=0x" TARGET_FMT_lx " LO=0x" TARGET_FMT_lx " ds %04x " TARGET_FMT_lx " " TARGET_FMT_ld "\n", env->active_tc.PC, env->active_tc.HI[0], env->active_tc.LO[0], env->hflags, env->btarget, env->bcond); for (i = 0; i < 32; i++) { if ((i & 3) == 0) cpu_fprintf(f, "GPR%02d:", i); cpu_fprintf(f, " %s " TARGET_FMT_lx, regnames[i], env->active_tc.gpr[i]); if ((i & 3) == 3) cpu_fprintf(f, "\n"); } cpu_fprintf(f, "CP0 Status 0x%08x Cause 0x%08x EPC 0x" TARGET_FMT_lx "\n", env->CP0_Status, env->CP0_Cause, env->CP0_EPC); cpu_fprintf(f, " Config0 0x%08x Config1 0x%08x LLAddr 0x" TARGET_FMT_lx "\n", env->CP0_Config0, env->CP0_Config1, env->lladdr); if (env->hflags & MIPS_HFLAG_FPU) fpu_dump_state(env, f, cpu_fprintf, flags); #if defined(TARGET_MIPS64) && defined(MIPS_DEBUG_SIGN_EXTENSIONS) cpu_mips_check_sign_extensions(env, f, cpu_fprintf, flags); #endif } static void mips_tcg_init(void) { int i; static int inited; /* Initialize various static tables. */ if (inited) return; cpu_env = tcg_global_reg_new_ptr(TCG_AREG0, "env"); TCGV_UNUSED(cpu_gpr[0]); for (i = 1; i < 32; i++) cpu_gpr[i] = tcg_global_mem_new(TCG_AREG0, offsetof(CPUState, active_tc.gpr[i]), regnames[i]); cpu_PC = tcg_global_mem_new(TCG_AREG0, offsetof(CPUState, active_tc.PC), "PC"); for (i = 0; i < MIPS_DSP_ACC; i++) { cpu_HI[i] = tcg_global_mem_new(TCG_AREG0, offsetof(CPUState, active_tc.HI[i]), regnames_HI[i]); cpu_LO[i] = tcg_global_mem_new(TCG_AREG0, offsetof(CPUState, active_tc.LO[i]), regnames_LO[i]); cpu_ACX[i] = tcg_global_mem_new(TCG_AREG0, offsetof(CPUState, active_tc.ACX[i]), regnames_ACX[i]); } cpu_dspctrl = tcg_global_mem_new(TCG_AREG0, offsetof(CPUState, active_tc.DSPControl), "DSPControl"); bcond = tcg_global_mem_new(TCG_AREG0, offsetof(CPUState, bcond), "bcond"); btarget = tcg_global_mem_new(TCG_AREG0, offsetof(CPUState, btarget), "btarget"); hflags = tcg_global_mem_new_i32(TCG_AREG0, offsetof(CPUState, hflags), "hflags"); fpu_fcr0 = tcg_global_mem_new_i32(TCG_AREG0, offsetof(CPUState, active_fpu.fcr0), "fcr0"); fpu_fcr31 = tcg_global_mem_new_i32(TCG_AREG0, offsetof(CPUState, active_fpu.fcr31), "fcr31"); /* register helpers */ #define GEN_HELPER 2 #include "helper.h" inited = 1; } #include "translate_init.c" CPUMIPSState *cpu_mips_init (const char *cpu_model) { CPUMIPSState *env; const mips_def_t *def; def = cpu_mips_find_by_name(cpu_model); if (!def) return NULL; env = g_malloc0(sizeof(CPUMIPSState)); env->cpu_model = def; env->cpu_model_str = cpu_model; cpu_exec_init(env); #ifndef CONFIG_USER_ONLY mmu_init(env, def); #endif fpu_init(env, def); mvp_init(env, def); mips_tcg_init(); cpu_state_reset(env); qemu_init_vcpu(env); return env; } void cpu_state_reset(CPUMIPSState *env) { if (qemu_loglevel_mask(CPU_LOG_RESET)) { qemu_log("CPU Reset (CPU %d)\n", env->cpu_index); log_cpu_state(env, 0); } memset(env, 0, offsetof(CPUMIPSState, breakpoints)); tlb_flush(env, 1); /* Reset registers to their default values */ env->CP0_PRid = env->cpu_model->CP0_PRid; env->CP0_Config0 = env->cpu_model->CP0_Config0; #ifdef TARGET_WORDS_BIGENDIAN env->CP0_Config0 |= (1 << CP0C0_BE); #endif env->CP0_Config1 = env->cpu_model->CP0_Config1; env->CP0_Config2 = env->cpu_model->CP0_Config2; env->CP0_Config3 = env->cpu_model->CP0_Config3; env->CP0_Config6 = env->cpu_model->CP0_Config6; env->CP0_Config7 = env->cpu_model->CP0_Config7; env->CP0_LLAddr_rw_bitmask = env->cpu_model->CP0_LLAddr_rw_bitmask << env->cpu_model->CP0_LLAddr_shift; env->CP0_LLAddr_shift = env->cpu_model->CP0_LLAddr_shift; env->SYNCI_Step = env->cpu_model->SYNCI_Step; env->CCRes = env->cpu_model->CCRes; env->CP0_Status_rw_bitmask = env->cpu_model->CP0_Status_rw_bitmask; env->CP0_TCStatus_rw_bitmask = env->cpu_model->CP0_TCStatus_rw_bitmask; env->CP0_SRSCtl = env->cpu_model->CP0_SRSCtl; env->current_tc = 0; env->SEGBITS = env->cpu_model->SEGBITS; env->SEGMask = (target_ulong)((1ULL << env->cpu_model->SEGBITS) - 1); #if defined(TARGET_MIPS64) if (env->cpu_model->insn_flags & ISA_MIPS3) { env->SEGMask |= 3ULL << 62; } #endif env->PABITS = env->cpu_model->PABITS; env->PAMask = (target_ulong)((1ULL << env->cpu_model->PABITS) - 1); env->CP0_SRSConf0_rw_bitmask = env->cpu_model->CP0_SRSConf0_rw_bitmask; env->CP0_SRSConf0 = env->cpu_model->CP0_SRSConf0; env->CP0_SRSConf1_rw_bitmask = env->cpu_model->CP0_SRSConf1_rw_bitmask; env->CP0_SRSConf1 = env->cpu_model->CP0_SRSConf1; env->CP0_SRSConf2_rw_bitmask = env->cpu_model->CP0_SRSConf2_rw_bitmask; env->CP0_SRSConf2 = env->cpu_model->CP0_SRSConf2; env->CP0_SRSConf3_rw_bitmask = env->cpu_model->CP0_SRSConf3_rw_bitmask; env->CP0_SRSConf3 = env->cpu_model->CP0_SRSConf3; env->CP0_SRSConf4_rw_bitmask = env->cpu_model->CP0_SRSConf4_rw_bitmask; env->CP0_SRSConf4 = env->cpu_model->CP0_SRSConf4; env->insn_flags = env->cpu_model->insn_flags; #if defined(CONFIG_USER_ONLY) env->hflags = MIPS_HFLAG_UM; /* Enable access to the SYNCI_Step register. */ env->CP0_HWREna |= (1 << 1); if (env->CP0_Config1 & (1 << CP0C1_FP)) { env->hflags |= MIPS_HFLAG_FPU; } #ifdef TARGET_MIPS64 if (env->active_fpu.fcr0 & (1 << FCR0_F64)) { env->hflags |= MIPS_HFLAG_F64; } #endif #else if (env->hflags & MIPS_HFLAG_BMASK) { /* If the exception was raised from a delay slot, come back to the jump. */ env->CP0_ErrorEPC = env->active_tc.PC - 4; } else { env->CP0_ErrorEPC = env->active_tc.PC; } env->active_tc.PC = (int32_t)0xBFC00000; env->CP0_Random = env->tlb->nb_tlb - 1; env->tlb->tlb_in_use = env->tlb->nb_tlb; env->CP0_Wired = 0; env->CP0_EBase = 0x80000000 | (env->cpu_index & 0x3FF); env->CP0_Status = (1 << CP0St_BEV) | (1 << CP0St_ERL); /* vectored interrupts not implemented, timer on int 7, no performance counters. */ env->CP0_IntCtl = 0xe0000000; { int i; for (i = 0; i < 7; i++) { env->CP0_WatchLo[i] = 0; env->CP0_WatchHi[i] = 0x80000000; } env->CP0_WatchLo[7] = 0; env->CP0_WatchHi[7] = 0; } /* Count register increments in debug mode, EJTAG version 1 */ env->CP0_Debug = (1 << CP0DB_CNT) | (0x1 << CP0DB_VER); env->hflags = MIPS_HFLAG_CP0; if (env->CP0_Config3 & (1 << CP0C3_MT)) { int i; /* Only TC0 on VPE 0 starts as active. */ for (i = 0; i < ARRAY_SIZE(env->tcs); i++) { env->tcs[i].CP0_TCBind = env->cpu_index << CP0TCBd_CurVPE; env->tcs[i].CP0_TCHalt = 1; } env->active_tc.CP0_TCHalt = 1; env->halted = 1; if (!env->cpu_index) { /* VPE0 starts up enabled. */ env->mvp->CP0_MVPControl |= (1 << CP0MVPCo_EVP); env->CP0_VPEConf0 |= (1 << CP0VPEC0_MVP) | (1 << CP0VPEC0_VPA); /* TC0 starts up unhalted. */ env->halted = 0; env->active_tc.CP0_TCHalt = 0; env->tcs[0].CP0_TCHalt = 0; /* With thread 0 active. */ env->active_tc.CP0_TCStatus = (1 << CP0TCSt_A); env->tcs[0].CP0_TCStatus = (1 << CP0TCSt_A); } } #endif #if defined(TARGET_MIPS64) if (env->cpu_model->insn_flags & ISA_MIPS3) { env->hflags |= MIPS_HFLAG_64; } #endif env->exception_index = EXCP_NONE; } void restore_state_to_opc(CPUState *env, TranslationBlock *tb, int pc_pos) { env->active_tc.PC = gen_opc_pc[pc_pos]; env->hflags &= ~MIPS_HFLAG_BMASK; env->hflags |= gen_opc_hflags[pc_pos]; }