/* * OpenRISC translation * * Copyright (c) 2011-2012 Jia Liu <proljc@gmail.com> * Feng Gao <gf91597@gmail.com> * * 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 <http://www.gnu.org/licenses/>. */ #include "cpu.h" #include "exec-all.h" #include "disas.h" #include "tcg-op.h" #include "qemu-common.h" #include "qemu-log.h" #include "config.h" #include "bitops.h" #include "helper.h" #define GEN_HELPER 1 #include "helper.h" #define OPENRISC_DISAS #ifdef OPENRISC_DISAS # define LOG_DIS(...) qemu_log_mask(CPU_LOG_TB_IN_ASM, ## __VA_ARGS__) #else # define LOG_DIS(...) do { } while (0) #endif typedef struct DisasContext { TranslationBlock *tb; target_ulong pc, ppc, npc; uint32_t tb_flags, synced_flags, flags; uint32_t is_jmp; uint32_t mem_idx; int singlestep_enabled; uint32_t delayed_branch; } DisasContext; static TCGv_ptr cpu_env; static TCGv cpu_sr; static TCGv cpu_R[32]; static TCGv cpu_pc; static TCGv jmp_pc; /* l.jr/l.jalr temp pc */ static TCGv cpu_npc; static TCGv cpu_ppc; static TCGv_i32 env_btaken; /* bf/bnf , F flag taken */ static TCGv_i32 fpcsr; static TCGv machi, maclo; static TCGv fpmaddhi, fpmaddlo; static TCGv_i32 env_flags; #include "gen-icount.h" void openrisc_translate_init(void) { static const char * const regnames[] = { "r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7", "r8", "r9", "r10", "r11", "r12", "r13", "r14", "r15", "r16", "r17", "r18", "r19", "r20", "r21", "r22", "r23", "r24", "r25", "r26", "r27", "r28", "r29", "r30", "r31", }; int i; cpu_env = tcg_global_reg_new_ptr(TCG_AREG0, "env"); cpu_sr = tcg_global_mem_new(TCG_AREG0, offsetof(CPUOpenRISCState, sr), "sr"); env_flags = tcg_global_mem_new_i32(TCG_AREG0, offsetof(CPUOpenRISCState, flags), "flags"); cpu_pc = tcg_global_mem_new(TCG_AREG0, offsetof(CPUOpenRISCState, pc), "pc"); cpu_npc = tcg_global_mem_new(TCG_AREG0, offsetof(CPUOpenRISCState, npc), "npc"); cpu_ppc = tcg_global_mem_new(TCG_AREG0, offsetof(CPUOpenRISCState, ppc), "ppc"); jmp_pc = tcg_global_mem_new(TCG_AREG0, offsetof(CPUOpenRISCState, jmp_pc), "jmp_pc"); env_btaken = tcg_global_mem_new_i32(TCG_AREG0, offsetof(CPUOpenRISCState, btaken), "btaken"); fpcsr = tcg_global_mem_new_i32(TCG_AREG0, offsetof(CPUOpenRISCState, fpcsr), "fpcsr"); machi = tcg_global_mem_new(TCG_AREG0, offsetof(CPUOpenRISCState, machi), "machi"); maclo = tcg_global_mem_new(TCG_AREG0, offsetof(CPUOpenRISCState, maclo), "maclo"); fpmaddhi = tcg_global_mem_new(TCG_AREG0, offsetof(CPUOpenRISCState, fpmaddhi), "fpmaddhi"); fpmaddlo = tcg_global_mem_new(TCG_AREG0, offsetof(CPUOpenRISCState, fpmaddlo), "fpmaddlo"); for (i = 0; i < 32; i++) { cpu_R[i] = tcg_global_mem_new(TCG_AREG0, offsetof(CPUOpenRISCState, gpr[i]), regnames[i]); } #define GEN_HELPER 2 #include "helper.h" } /* Writeback SR_F transaltion-space to execution-space. */ static inline void wb_SR_F(void) { int label; label = gen_new_label(); tcg_gen_andi_tl(cpu_sr, cpu_sr, ~SR_F); tcg_gen_brcondi_tl(TCG_COND_EQ, env_btaken, 0, label); tcg_gen_ori_tl(cpu_sr, cpu_sr, SR_F); gen_set_label(label); } static inline int zero_extend(unsigned int val, int width) { return val & ((1 << width) - 1); } static inline int sign_extend(unsigned int val, int width) { int sval; /* LSL */ val <<= TARGET_LONG_BITS - width; sval = val; /* ASR. */ sval >>= TARGET_LONG_BITS - width; return sval; } static inline void gen_sync_flags(DisasContext *dc) { /* Sync the tb dependent flag between translate and runtime. */ if (dc->tb_flags != dc->synced_flags) { tcg_gen_movi_tl(env_flags, dc->tb_flags); dc->synced_flags = dc->tb_flags; } } static void gen_exception(DisasContext *dc, unsigned int excp) { TCGv_i32 tmp = tcg_const_i32(excp); gen_helper_exception(cpu_env, tmp); tcg_temp_free_i32(tmp); } static void gen_illegal_exception(DisasContext *dc) { tcg_gen_movi_tl(cpu_pc, dc->pc); gen_exception(dc, EXCP_ILLEGAL); dc->is_jmp = DISAS_UPDATE; } /* not used yet, open it when we need or64. */ /*#ifdef TARGET_OPENRISC64 static void check_ob64s(DisasContext *dc) { if (!(dc->flags & CPUCFGR_OB64S)) { gen_illegal_exception(dc); } } static void check_of64s(DisasContext *dc) { if (!(dc->flags & CPUCFGR_OF64S)) { gen_illegal_exception(dc); } } static void check_ov64s(DisasContext *dc) { if (!(dc->flags & CPUCFGR_OV64S)) { gen_illegal_exception(dc); } } #endif*/ static void gen_goto_tb(DisasContext *dc, int n, target_ulong dest) { TranslationBlock *tb; tb = dc->tb; if ((tb->pc & TARGET_PAGE_MASK) == (dest & TARGET_PAGE_MASK) && likely(!dc->singlestep_enabled)) { tcg_gen_movi_tl(cpu_pc, dest); tcg_gen_goto_tb(n); tcg_gen_exit_tb((tcg_target_long)tb + n); } else { tcg_gen_movi_tl(cpu_pc, dest); if (dc->singlestep_enabled) { gen_exception(dc, EXCP_DEBUG); } tcg_gen_exit_tb(0); } } static void gen_jump(DisasContext *dc, uint32_t imm, uint32_t reg, uint32_t op0) { target_ulong tmp_pc; int lab = gen_new_label(); TCGv sr_f = tcg_temp_new(); /* N26, 26bits imm */ tmp_pc = sign_extend((imm<<2), 26) + dc->pc; tcg_gen_andi_tl(sr_f, cpu_sr, SR_F); if (op0 == 0x00) { /* l.j */ tcg_gen_movi_tl(jmp_pc, tmp_pc); } else if (op0 == 0x01) { /* l.jal */ tcg_gen_movi_tl(cpu_R[9], (dc->pc + 8)); tcg_gen_movi_tl(jmp_pc, tmp_pc); } else if (op0 == 0x03) { /* l.bnf */ tcg_gen_movi_tl(jmp_pc, dc->pc+8); tcg_gen_brcondi_i32(TCG_COND_EQ, sr_f, SR_F, lab); tcg_gen_movi_tl(jmp_pc, tmp_pc); gen_set_label(lab); } else if (op0 == 0x04) { /* l.bf */ tcg_gen_movi_tl(jmp_pc, dc->pc+8); tcg_gen_brcondi_i32(TCG_COND_NE, sr_f, SR_F, lab); tcg_gen_movi_tl(jmp_pc, tmp_pc); gen_set_label(lab); } else if (op0 == 0x11) { /* l.jr */ tcg_gen_mov_tl(jmp_pc, cpu_R[reg]); } else if (op0 == 0x12) { /* l.jalr */ tcg_gen_movi_tl(cpu_R[9], (dc->pc + 8)); tcg_gen_mov_tl(jmp_pc, cpu_R[reg]); } else { gen_illegal_exception(dc); } tcg_temp_free(sr_f); dc->delayed_branch = 2; dc->tb_flags |= D_FLAG; gen_sync_flags(dc); } static void dec_calc(DisasContext *dc, uint32_t insn) { uint32_t op0, op1, op2; uint32_t ra, rb, rd; op0 = extract32(insn, 0, 4); op1 = extract32(insn, 8, 2); op2 = extract32(insn, 6, 2); ra = extract32(insn, 16, 5); rb = extract32(insn, 11, 5); rd = extract32(insn, 21, 5); switch (op0) { case 0x0000: switch (op1) { case 0x00: /* l.add */ LOG_DIS("l.add r%d, r%d, r%d\n", rd, ra, rb); { int lab = gen_new_label(); TCGv_i64 ta = tcg_temp_new_i64(); TCGv_i64 tb = tcg_temp_new_i64(); TCGv_i64 td = tcg_temp_local_new_i64(); TCGv_i32 res = tcg_temp_local_new_i32(); TCGv_i32 sr_ove = tcg_temp_local_new_i32(); tcg_gen_extu_i32_i64(ta, cpu_R[ra]); tcg_gen_extu_i32_i64(tb, cpu_R[rb]); tcg_gen_add_i64(td, ta, tb); tcg_gen_trunc_i64_i32(res, td); tcg_gen_shri_i64(td, td, 31); tcg_gen_andi_i64(td, td, 0x3); /* Jump to lab when no overflow. */ tcg_gen_brcondi_i64(TCG_COND_EQ, td, 0x0, lab); tcg_gen_brcondi_i64(TCG_COND_EQ, td, 0x3, lab); tcg_gen_ori_i32(cpu_sr, cpu_sr, (SR_OV | SR_CY)); tcg_gen_andi_i32(sr_ove, cpu_sr, SR_OVE); tcg_gen_brcondi_i32(TCG_COND_NE, sr_ove, SR_OVE, lab); gen_exception(dc, EXCP_RANGE); gen_set_label(lab); tcg_gen_mov_i32(cpu_R[rd], res); tcg_temp_free_i64(ta); tcg_temp_free_i64(tb); tcg_temp_free_i64(td); tcg_temp_free_i32(res); tcg_temp_free_i32(sr_ove); } break; default: gen_illegal_exception(dc); break; } break; case 0x0001: /* l.addc */ switch (op1) { case 0x00: LOG_DIS("l.addc r%d, r%d, r%d\n", rd, ra, rb); { int lab = gen_new_label(); TCGv_i64 ta = tcg_temp_new_i64(); TCGv_i64 tb = tcg_temp_new_i64(); TCGv_i64 tcy = tcg_temp_local_new_i64(); TCGv_i64 td = tcg_temp_local_new_i64(); TCGv_i32 res = tcg_temp_local_new_i32(); TCGv_i32 sr_cy = tcg_temp_local_new_i32(); TCGv_i32 sr_ove = tcg_temp_local_new_i32(); tcg_gen_extu_i32_i64(ta, cpu_R[ra]); tcg_gen_extu_i32_i64(tb, cpu_R[rb]); tcg_gen_andi_i32(sr_cy, cpu_sr, SR_CY); tcg_gen_extu_i32_i64(tcy, sr_cy); tcg_gen_shri_i64(tcy, tcy, 10); tcg_gen_add_i64(td, ta, tb); tcg_gen_add_i64(td, td, tcy); tcg_gen_trunc_i64_i32(res, td); tcg_gen_shri_i64(td, td, 32); tcg_gen_andi_i64(td, td, 0x3); /* Jump to lab when no overflow. */ tcg_gen_brcondi_i64(TCG_COND_EQ, td, 0x0, lab); tcg_gen_brcondi_i64(TCG_COND_EQ, td, 0x3, lab); tcg_gen_ori_i32(cpu_sr, cpu_sr, (SR_OV | SR_CY)); tcg_gen_andi_i32(sr_ove, cpu_sr, SR_OVE); tcg_gen_brcondi_i32(TCG_COND_NE, sr_ove, SR_OVE, lab); gen_exception(dc, EXCP_RANGE); gen_set_label(lab); tcg_gen_mov_i32(cpu_R[rd], res); tcg_temp_free_i64(ta); tcg_temp_free_i64(tb); tcg_temp_free_i64(tcy); tcg_temp_free_i64(td); tcg_temp_free_i32(res); tcg_temp_free_i32(sr_cy); tcg_temp_free_i32(sr_ove); } break; default: gen_illegal_exception(dc); break; } break; case 0x0002: /* l.sub */ switch (op1) { case 0x00: LOG_DIS("l.sub r%d, r%d, r%d\n", rd, ra, rb); { int lab = gen_new_label(); TCGv_i64 ta = tcg_temp_new_i64(); TCGv_i64 tb = tcg_temp_new_i64(); TCGv_i64 td = tcg_temp_local_new_i64(); TCGv_i32 res = tcg_temp_local_new_i32(); TCGv_i32 sr_ove = tcg_temp_local_new_i32(); tcg_gen_extu_i32_i64(ta, cpu_R[ra]); tcg_gen_extu_i32_i64(tb, cpu_R[rb]); tcg_gen_sub_i64(td, ta, tb); tcg_gen_trunc_i64_i32(res, td); tcg_gen_shri_i64(td, td, 31); tcg_gen_andi_i64(td, td, 0x3); /* Jump to lab when no overflow. */ tcg_gen_brcondi_i64(TCG_COND_EQ, td, 0x0, lab); tcg_gen_brcondi_i64(TCG_COND_EQ, td, 0x3, lab); tcg_gen_ori_i32(cpu_sr, cpu_sr, (SR_OV | SR_CY)); tcg_gen_andi_i32(sr_ove, cpu_sr, SR_OVE); tcg_gen_brcondi_i32(TCG_COND_NE, sr_ove, SR_OVE, lab); gen_exception(dc, EXCP_RANGE); gen_set_label(lab); tcg_gen_mov_i32(cpu_R[rd], res); tcg_temp_free_i64(ta); tcg_temp_free_i64(tb); tcg_temp_free_i64(td); tcg_temp_free_i32(res); tcg_temp_free_i32(sr_ove); } break; default: gen_illegal_exception(dc); break; } break; case 0x0003: /* l.and */ switch (op1) { case 0x00: LOG_DIS("l.and r%d, r%d, r%d\n", rd, ra, rb); tcg_gen_and_tl(cpu_R[rd], cpu_R[ra], cpu_R[rb]); break; default: gen_illegal_exception(dc); break; } break; case 0x0004: /* l.or */ switch (op1) { case 0x00: LOG_DIS("l.or r%d, r%d, r%d\n", rd, ra, rb); tcg_gen_or_tl(cpu_R[rd], cpu_R[ra], cpu_R[rb]); break; default: gen_illegal_exception(dc); break; } break; case 0x0005: switch (op1) { case 0x00: /* l.xor */ LOG_DIS("l.xor r%d, r%d, r%d\n", rd, ra, rb); tcg_gen_xor_tl(cpu_R[rd], cpu_R[ra], cpu_R[rb]); break; default: gen_illegal_exception(dc); break; } break; case 0x0006: switch (op1) { case 0x03: /* l.mul */ LOG_DIS("l.mul r%d, r%d, r%d\n", rd, ra, rb); if (ra != 0 && rb != 0) { gen_helper_mul32(cpu_R[rd], cpu_env, cpu_R[ra], cpu_R[rb]); } else { tcg_gen_movi_tl(cpu_R[rd], 0x0); } break; default: gen_illegal_exception(dc); break; } break; case 0x0009: switch (op1) { case 0x03: /* l.div */ LOG_DIS("l.div r%d, r%d, r%d\n", rd, ra, rb); { int lab0 = gen_new_label(); int lab1 = gen_new_label(); int lab2 = gen_new_label(); int lab3 = gen_new_label(); TCGv_i32 sr_ove = tcg_temp_local_new_i32(); if (rb == 0) { tcg_gen_ori_tl(cpu_sr, cpu_sr, (SR_OV | SR_CY)); tcg_gen_andi_tl(sr_ove, cpu_sr, SR_OVE); tcg_gen_brcondi_tl(TCG_COND_NE, sr_ove, SR_OVE, lab0); gen_exception(dc, EXCP_RANGE); gen_set_label(lab0); } else { tcg_gen_brcondi_tl(TCG_COND_EQ, cpu_R[rb], 0x00000000, lab1); tcg_gen_brcondi_tl(TCG_COND_NE, cpu_R[ra], 0x80000000, lab2); tcg_gen_brcondi_tl(TCG_COND_NE, cpu_R[rb], 0xffffffff, lab2); gen_set_label(lab1); tcg_gen_ori_tl(cpu_sr, cpu_sr, (SR_OV | SR_CY)); tcg_gen_andi_tl(sr_ove, cpu_sr, SR_OVE); tcg_gen_brcondi_tl(TCG_COND_NE, sr_ove, SR_OVE, lab3); gen_exception(dc, EXCP_RANGE); gen_set_label(lab2); tcg_gen_div_tl(cpu_R[rd], cpu_R[ra], cpu_R[rb]); gen_set_label(lab3); } tcg_temp_free_i32(sr_ove); } break; default: gen_illegal_exception(dc); break; } break; case 0x000a: switch (op1) { case 0x03: /* l.divu */ LOG_DIS("l.divu r%d, r%d, r%d\n", rd, ra, rb); { int lab0 = gen_new_label(); int lab1 = gen_new_label(); int lab2 = gen_new_label(); TCGv_i32 sr_ove = tcg_temp_local_new_i32(); if (rb == 0) { tcg_gen_ori_tl(cpu_sr, cpu_sr, (SR_OV | SR_CY)); tcg_gen_andi_tl(sr_ove, cpu_sr, SR_OVE); tcg_gen_brcondi_tl(TCG_COND_NE, sr_ove, SR_OVE, lab0); gen_exception(dc, EXCP_RANGE); gen_set_label(lab0); } else { tcg_gen_brcondi_tl(TCG_COND_NE, cpu_R[rb], 0x00000000, lab1); tcg_gen_ori_tl(cpu_sr, cpu_sr, (SR_OV | SR_CY)); tcg_gen_andi_tl(sr_ove, cpu_sr, SR_OVE); tcg_gen_brcondi_tl(TCG_COND_NE, sr_ove, SR_OVE, lab2); gen_exception(dc, EXCP_RANGE); gen_set_label(lab1); tcg_gen_divu_tl(cpu_R[rd], cpu_R[ra], cpu_R[rb]); gen_set_label(lab2); } tcg_temp_free_i32(sr_ove); } break; default: gen_illegal_exception(dc); break; } break; case 0x000b: switch (op1) { case 0x03: /* l.mulu */ LOG_DIS("l.mulu r%d, r%d, r%d\n", rd, ra, rb); if (rb != 0 && ra != 0) { TCGv_i64 result = tcg_temp_local_new_i64(); TCGv_i64 tra = tcg_temp_local_new_i64(); TCGv_i64 trb = tcg_temp_local_new_i64(); TCGv_i64 high = tcg_temp_new_i64(); TCGv_i32 sr_ove = tcg_temp_local_new_i32(); int lab = gen_new_label(); /* Calculate the each result. */ tcg_gen_extu_i32_i64(tra, cpu_R[ra]); tcg_gen_extu_i32_i64(trb, cpu_R[rb]); tcg_gen_mul_i64(result, tra, trb); tcg_temp_free_i64(tra); tcg_temp_free_i64(trb); tcg_gen_shri_i64(high, result, TARGET_LONG_BITS); /* Overflow or not. */ tcg_gen_brcondi_i64(TCG_COND_EQ, high, 0x00000000, lab); tcg_gen_ori_tl(cpu_sr, cpu_sr, (SR_OV | SR_CY)); tcg_gen_andi_tl(sr_ove, cpu_sr, SR_OVE); tcg_gen_brcondi_tl(TCG_COND_NE, sr_ove, SR_OVE, lab); gen_exception(dc, EXCP_RANGE); gen_set_label(lab); tcg_temp_free_i64(high); tcg_gen_trunc_i64_tl(cpu_R[rd], result); tcg_temp_free_i64(result); tcg_temp_free_i32(sr_ove); } else { tcg_gen_movi_tl(cpu_R[rd], 0); } break; default: gen_illegal_exception(dc); break; } break; case 0x000e: switch (op1) { case 0x00: /* l.cmov */ LOG_DIS("l.cmov r%d, r%d, r%d\n", rd, ra, rb); { int lab = gen_new_label(); TCGv res = tcg_temp_local_new(); TCGv sr_f = tcg_temp_new(); tcg_gen_andi_tl(sr_f, cpu_sr, SR_F); tcg_gen_mov_tl(res, cpu_R[rb]); tcg_gen_brcondi_tl(TCG_COND_NE, sr_f, SR_F, lab); tcg_gen_mov_tl(res, cpu_R[ra]); gen_set_label(lab); tcg_gen_mov_tl(cpu_R[rd], res); tcg_temp_free(sr_f); tcg_temp_free(res); } break; default: gen_illegal_exception(dc); break; } break; case 0x000f: switch (op1) { case 0x00: /* l.ff1 */ LOG_DIS("l.ff1 r%d, r%d, r%d\n", rd, ra, rb); gen_helper_ff1(cpu_R[rd], cpu_R[ra]); break; case 0x01: /* l.fl1 */ LOG_DIS("l.fl1 r%d, r%d, r%d\n", rd, ra, rb); gen_helper_fl1(cpu_R[rd], cpu_R[ra]); break; default: gen_illegal_exception(dc); break; } break; case 0x0008: switch (op1) { case 0x00: switch (op2) { case 0x00: /* l.sll */ LOG_DIS("l.sll r%d, r%d, r%d\n", rd, ra, rb); tcg_gen_shl_tl(cpu_R[rd], cpu_R[ra], cpu_R[rb]); break; case 0x01: /* l.srl */ LOG_DIS("l.srl r%d, r%d, r%d\n", rd, ra, rb); tcg_gen_shr_tl(cpu_R[rd], cpu_R[ra], cpu_R[rb]); break; case 0x02: /* l.sra */ LOG_DIS("l.sra r%d, r%d, r%d\n", rd, ra, rb); tcg_gen_sar_tl(cpu_R[rd], cpu_R[ra], cpu_R[rb]); break; case 0x03: /* l.ror */ LOG_DIS("l.ror r%d, r%d, r%d\n", rd, ra, rb); tcg_gen_rotr_tl(cpu_R[rd], cpu_R[ra], cpu_R[rb]); break; default: gen_illegal_exception(dc); break; } break; default: gen_illegal_exception(dc); break; } break; case 0x000c: switch (op1) { case 0x00: switch (op2) { case 0x00: /* l.exths */ LOG_DIS("l.exths r%d, r%d\n", rd, ra); tcg_gen_ext16s_tl(cpu_R[rd], cpu_R[ra]); break; case 0x01: /* l.extbs */ LOG_DIS("l.extbs r%d, r%d\n", rd, ra); tcg_gen_ext8s_tl(cpu_R[rd], cpu_R[ra]); break; case 0x02: /* l.exthz */ LOG_DIS("l.exthz r%d, r%d\n", rd, ra); tcg_gen_ext16u_tl(cpu_R[rd], cpu_R[ra]); break; case 0x03: /* l.extbz */ LOG_DIS("l.extbz r%d, r%d\n", rd, ra); tcg_gen_ext8u_tl(cpu_R[rd], cpu_R[ra]); break; default: gen_illegal_exception(dc); break; } break; default: gen_illegal_exception(dc); break; } break; case 0x000d: switch (op1) { case 0x00: switch (op2) { case 0x00: /* l.extws */ LOG_DIS("l.extws r%d, r%d\n", rd, ra); tcg_gen_ext32s_tl(cpu_R[rd], cpu_R[ra]); break; case 0x01: /* l.extwz */ LOG_DIS("l.extwz r%d, r%d\n", rd, ra); tcg_gen_ext32u_tl(cpu_R[rd], cpu_R[ra]); break; default: gen_illegal_exception(dc); break; } break; default: gen_illegal_exception(dc); break; } break; default: gen_illegal_exception(dc); break; } } static void dec_misc(DisasContext *dc, uint32_t insn) { uint32_t op0, op1; uint32_t ra, rb, rd; #ifdef OPENRISC_DISAS uint32_t L6, K5; #endif uint32_t I16, I5, I11, N26, tmp; op0 = extract32(insn, 26, 6); op1 = extract32(insn, 24, 2); ra = extract32(insn, 16, 5); rb = extract32(insn, 11, 5); rd = extract32(insn, 21, 5); #ifdef OPENRISC_DISAS L6 = extract32(insn, 5, 6); K5 = extract32(insn, 0, 5); #endif I16 = extract32(insn, 0, 16); I5 = extract32(insn, 21, 5); I11 = extract32(insn, 0, 11); N26 = extract32(insn, 0, 26); tmp = (I5<<11) + I11; switch (op0) { case 0x00: /* l.j */ LOG_DIS("l.j %d\n", N26); gen_jump(dc, N26, 0, op0); break; case 0x01: /* l.jal */ LOG_DIS("l.jal %d\n", N26); gen_jump(dc, N26, 0, op0); break; case 0x03: /* l.bnf */ LOG_DIS("l.bnf %d\n", N26); gen_jump(dc, N26, 0, op0); break; case 0x04: /* l.bf */ LOG_DIS("l.bf %d\n", N26); gen_jump(dc, N26, 0, op0); break; case 0x05: switch (op1) { case 0x01: /* l.nop */ LOG_DIS("l.nop %d\n", I16); break; default: gen_illegal_exception(dc); break; } break; case 0x11: /* l.jr */ LOG_DIS("l.jr r%d\n", rb); gen_jump(dc, 0, rb, op0); break; case 0x12: /* l.jalr */ LOG_DIS("l.jalr r%d\n", rb); gen_jump(dc, 0, rb, op0); break; case 0x13: /* l.maci */ LOG_DIS("l.maci %d, r%d, %d\n", I5, ra, I11); { TCGv_i64 t1 = tcg_temp_new_i64(); TCGv_i64 t2 = tcg_temp_new_i64(); TCGv_i32 dst = tcg_temp_new_i32(); TCGv ttmp = tcg_const_tl(tmp); tcg_gen_mul_tl(dst, cpu_R[ra], ttmp); tcg_gen_ext_i32_i64(t1, dst); tcg_gen_concat_i32_i64(t2, maclo, machi); tcg_gen_add_i64(t2, t2, t1); tcg_gen_trunc_i64_i32(maclo, t2); tcg_gen_shri_i64(t2, t2, 32); tcg_gen_trunc_i64_i32(machi, t2); tcg_temp_free_i32(dst); tcg_temp_free(ttmp); tcg_temp_free_i64(t1); tcg_temp_free_i64(t2); } break; case 0x09: /* l.rfe */ LOG_DIS("l.rfe\n"); { #if defined(CONFIG_USER_ONLY) return; #else if (dc->mem_idx == MMU_USER_IDX) { gen_illegal_exception(dc); return; } gen_helper_rfe(cpu_env); dc->is_jmp = DISAS_UPDATE; #endif } break; case 0x1c: /* l.cust1 */ LOG_DIS("l.cust1\n"); break; case 0x1d: /* l.cust2 */ LOG_DIS("l.cust2\n"); break; case 0x1e: /* l.cust3 */ LOG_DIS("l.cust3\n"); break; case 0x1f: /* l.cust4 */ LOG_DIS("l.cust4\n"); break; case 0x3c: /* l.cust5 */ LOG_DIS("l.cust5 r%d, r%d, r%d, %d, %d\n", rd, ra, rb, L6, K5); break; case 0x3d: /* l.cust6 */ LOG_DIS("l.cust6\n"); break; case 0x3e: /* l.cust7 */ LOG_DIS("l.cust7\n"); break; case 0x3f: /* l.cust8 */ LOG_DIS("l.cust8\n"); break; /* not used yet, open it when we need or64. */ /*#ifdef TARGET_OPENRISC64 case 0x20: l.ld LOG_DIS("l.ld r%d, r%d, %d\n", rd, ra, I16); { check_ob64s(dc); TCGv_i64 t0 = tcg_temp_new_i64(); tcg_gen_addi_i64(t0, cpu_R[ra], sign_extend(I16, 16)); tcg_gen_qemu_ld64(cpu_R[rd], t0, dc->mem_idx); tcg_temp_free_i64(t0); } break; #endif*/ case 0x21: /* l.lwz */ LOG_DIS("l.lwz r%d, r%d, %d\n", rd, ra, I16); { TCGv t0 = tcg_temp_new(); tcg_gen_addi_tl(t0, cpu_R[ra], sign_extend(I16, 16)); tcg_gen_qemu_ld32u(cpu_R[rd], t0, dc->mem_idx); tcg_temp_free(t0); } break; case 0x22: /* l.lws */ LOG_DIS("l.lws r%d, r%d, %d\n", rd, ra, I16); { TCGv t0 = tcg_temp_new(); tcg_gen_addi_tl(t0, cpu_R[ra], sign_extend(I16, 16)); tcg_gen_qemu_ld32s(cpu_R[rd], t0, dc->mem_idx); tcg_temp_free(t0); } break; case 0x23: /* l.lbz */ LOG_DIS("l.lbz r%d, r%d, %d\n", rd, ra, I16); { TCGv t0 = tcg_temp_new(); tcg_gen_addi_tl(t0, cpu_R[ra], sign_extend(I16, 16)); tcg_gen_qemu_ld8u(cpu_R[rd], t0, dc->mem_idx); tcg_temp_free(t0); } break; case 0x24: /* l.lbs */ LOG_DIS("l.lbs r%d, r%d, %d\n", rd, ra, I16); { TCGv t0 = tcg_temp_new(); tcg_gen_addi_tl(t0, cpu_R[ra], sign_extend(I16, 16)); tcg_gen_qemu_ld8s(cpu_R[rd], t0, dc->mem_idx); tcg_temp_free(t0); } break; case 0x25: /* l.lhz */ LOG_DIS("l.lhz r%d, r%d, %d\n", rd, ra, I16); { TCGv t0 = tcg_temp_new(); tcg_gen_addi_tl(t0, cpu_R[ra], sign_extend(I16, 16)); tcg_gen_qemu_ld16u(cpu_R[rd], t0, dc->mem_idx); tcg_temp_free(t0); } break; case 0x26: /* l.lhs */ LOG_DIS("l.lhs r%d, r%d, %d\n", rd, ra, I16); { TCGv t0 = tcg_temp_new(); tcg_gen_addi_tl(t0, cpu_R[ra], sign_extend(I16, 16)); tcg_gen_qemu_ld16s(cpu_R[rd], t0, dc->mem_idx); tcg_temp_free(t0); } break; case 0x27: /* l.addi */ LOG_DIS("l.addi r%d, r%d, %d\n", rd, ra, I16); { int lab = gen_new_label(); TCGv_i64 ta = tcg_temp_new_i64(); TCGv_i64 td = tcg_temp_local_new_i64(); TCGv_i32 res = tcg_temp_local_new_i32(); TCGv_i32 sr_ove = tcg_temp_local_new_i32(); tcg_gen_extu_i32_i64(ta, cpu_R[ra]); tcg_gen_addi_i64(td, ta, sign_extend(I16, 16)); tcg_gen_trunc_i64_i32(res, td); tcg_gen_shri_i64(td, td, 32); tcg_gen_andi_i64(td, td, 0x3); /* Jump to lab when no overflow. */ tcg_gen_brcondi_i64(TCG_COND_EQ, td, 0x0, lab); tcg_gen_brcondi_i64(TCG_COND_EQ, td, 0x3, lab); tcg_gen_ori_i32(cpu_sr, cpu_sr, (SR_OV | SR_CY)); tcg_gen_andi_i32(sr_ove, cpu_sr, SR_OVE); tcg_gen_brcondi_i32(TCG_COND_NE, sr_ove, SR_OVE, lab); gen_exception(dc, EXCP_RANGE); gen_set_label(lab); tcg_gen_mov_i32(cpu_R[rd], res); tcg_temp_free_i64(ta); tcg_temp_free_i64(td); tcg_temp_free_i32(res); tcg_temp_free_i32(sr_ove); } break; case 0x28: /* l.addic */ LOG_DIS("l.addic r%d, r%d, %d\n", rd, ra, I16); { int lab = gen_new_label(); TCGv_i64 ta = tcg_temp_new_i64(); TCGv_i64 td = tcg_temp_local_new_i64(); TCGv_i64 tcy = tcg_temp_local_new_i64(); TCGv_i32 res = tcg_temp_local_new_i32(); TCGv_i32 sr_cy = tcg_temp_local_new_i32(); TCGv_i32 sr_ove = tcg_temp_local_new_i32(); tcg_gen_extu_i32_i64(ta, cpu_R[ra]); tcg_gen_andi_i32(sr_cy, cpu_sr, SR_CY); tcg_gen_shri_i32(sr_cy, sr_cy, 10); tcg_gen_extu_i32_i64(tcy, sr_cy); tcg_gen_addi_i64(td, ta, sign_extend(I16, 16)); tcg_gen_add_i64(td, td, tcy); tcg_gen_trunc_i64_i32(res, td); tcg_gen_shri_i64(td, td, 32); tcg_gen_andi_i64(td, td, 0x3); /* Jump to lab when no overflow. */ tcg_gen_brcondi_i64(TCG_COND_EQ, td, 0x0, lab); tcg_gen_brcondi_i64(TCG_COND_EQ, td, 0x3, lab); tcg_gen_ori_i32(cpu_sr, cpu_sr, (SR_OV | SR_CY)); tcg_gen_andi_i32(sr_ove, cpu_sr, SR_OVE); tcg_gen_brcondi_i32(TCG_COND_NE, sr_ove, SR_OVE, lab); gen_exception(dc, EXCP_RANGE); gen_set_label(lab); tcg_gen_mov_i32(cpu_R[rd], res); tcg_temp_free_i64(ta); tcg_temp_free_i64(td); tcg_temp_free_i64(tcy); tcg_temp_free_i32(res); tcg_temp_free_i32(sr_cy); tcg_temp_free_i32(sr_ove); } break; case 0x29: /* l.andi */ LOG_DIS("l.andi r%d, r%d, %d\n", rd, ra, I16); tcg_gen_andi_tl(cpu_R[rd], cpu_R[ra], zero_extend(I16, 16)); break; case 0x2a: /* l.ori */ LOG_DIS("l.ori r%d, r%d, %d\n", rd, ra, I16); tcg_gen_ori_tl(cpu_R[rd], cpu_R[ra], zero_extend(I16, 16)); break; case 0x2b: /* l.xori */ LOG_DIS("l.xori r%d, r%d, %d\n", rd, ra, I16); tcg_gen_xori_tl(cpu_R[rd], cpu_R[ra], sign_extend(I16, 16)); break; case 0x2c: /* l.muli */ LOG_DIS("l.muli r%d, r%d, %d\n", rd, ra, I16); if (ra != 0 && I16 != 0) { TCGv_i32 im = tcg_const_i32(I16); gen_helper_mul32(cpu_R[rd], cpu_env, cpu_R[ra], im); tcg_temp_free_i32(im); } else { tcg_gen_movi_tl(cpu_R[rd], 0x0); } break; case 0x2d: /* l.mfspr */ LOG_DIS("l.mfspr r%d, r%d, %d\n", rd, ra, I16); { #if defined(CONFIG_USER_ONLY) return; #else TCGv_i32 ti = tcg_const_i32(I16); if (dc->mem_idx == MMU_USER_IDX) { gen_illegal_exception(dc); return; } gen_helper_mfspr(cpu_R[rd], cpu_env, cpu_R[rd], cpu_R[ra], ti); tcg_temp_free_i32(ti); #endif } break; case 0x30: /* l.mtspr */ LOG_DIS("l.mtspr %d, r%d, r%d, %d\n", I5, ra, rb, I11); { #if defined(CONFIG_USER_ONLY) return; #else TCGv_i32 im = tcg_const_i32(tmp); if (dc->mem_idx == MMU_USER_IDX) { gen_illegal_exception(dc); return; } gen_helper_mtspr(cpu_env, cpu_R[ra], cpu_R[rb], im); tcg_temp_free_i32(im); #endif } break; /* not used yet, open it when we need or64. */ /*#ifdef TARGET_OPENRISC64 case 0x34: l.sd LOG_DIS("l.sd %d, r%d, r%d, %d\n", I5, ra, rb, I11); { check_ob64s(dc); TCGv_i64 t0 = tcg_temp_new_i64(); tcg_gen_addi_tl(t0, cpu_R[ra], sign_extend(tmp, 16)); tcg_gen_qemu_st64(cpu_R[rb], t0, dc->mem_idx); tcg_temp_free_i64(t0); } break; #endif*/ case 0x35: /* l.sw */ LOG_DIS("l.sw %d, r%d, r%d, %d\n", I5, ra, rb, I11); { TCGv t0 = tcg_temp_new(); tcg_gen_addi_tl(t0, cpu_R[ra], sign_extend(tmp, 16)); tcg_gen_qemu_st32(cpu_R[rb], t0, dc->mem_idx); tcg_temp_free(t0); } break; case 0x36: /* l.sb */ LOG_DIS("l.sb %d, r%d, r%d, %d\n", I5, ra, rb, I11); { TCGv t0 = tcg_temp_new(); tcg_gen_addi_tl(t0, cpu_R[ra], sign_extend(tmp, 16)); tcg_gen_qemu_st8(cpu_R[rb], t0, dc->mem_idx); tcg_temp_free(t0); } break; case 0x37: /* l.sh */ LOG_DIS("l.sh %d, r%d, r%d, %d\n", I5, ra, rb, I11); { TCGv t0 = tcg_temp_new(); tcg_gen_addi_tl(t0, cpu_R[ra], sign_extend(tmp, 16)); tcg_gen_qemu_st16(cpu_R[rb], t0, dc->mem_idx); tcg_temp_free(t0); } break; default: gen_illegal_exception(dc); break; } } static void dec_mac(DisasContext *dc, uint32_t insn) { uint32_t op0; uint32_t ra, rb; op0 = extract32(insn, 0, 4); ra = extract32(insn, 16, 5); rb = extract32(insn, 11, 5); switch (op0) { case 0x0001: /* l.mac */ LOG_DIS("l.mac r%d, r%d\n", ra, rb); { TCGv_i32 t0 = tcg_temp_new_i32(); TCGv_i64 t1 = tcg_temp_new_i64(); TCGv_i64 t2 = tcg_temp_new_i64(); tcg_gen_mul_tl(t0, cpu_R[ra], cpu_R[rb]); tcg_gen_ext_i32_i64(t1, t0); tcg_gen_concat_i32_i64(t2, maclo, machi); tcg_gen_add_i64(t2, t2, t1); tcg_gen_trunc_i64_i32(maclo, t2); tcg_gen_shri_i64(t2, t2, 32); tcg_gen_trunc_i64_i32(machi, t2); tcg_temp_free_i32(t0); tcg_temp_free_i64(t1); tcg_temp_free_i64(t2); } break; case 0x0002: /* l.msb */ LOG_DIS("l.msb r%d, r%d\n", ra, rb); { TCGv_i32 t0 = tcg_temp_new_i32(); TCGv_i64 t1 = tcg_temp_new_i64(); TCGv_i64 t2 = tcg_temp_new_i64(); tcg_gen_mul_tl(t0, cpu_R[ra], cpu_R[rb]); tcg_gen_ext_i32_i64(t1, t0); tcg_gen_concat_i32_i64(t2, maclo, machi); tcg_gen_sub_i64(t2, t2, t1); tcg_gen_trunc_i64_i32(maclo, t2); tcg_gen_shri_i64(t2, t2, 32); tcg_gen_trunc_i64_i32(machi, t2); tcg_temp_free_i32(t0); tcg_temp_free_i64(t1); tcg_temp_free_i64(t2); } break; default: gen_illegal_exception(dc); break; } } static void dec_logic(DisasContext *dc, uint32_t insn) { uint32_t op0; uint32_t rd, ra, L6; op0 = extract32(insn, 6, 2); rd = extract32(insn, 21, 5); ra = extract32(insn, 16, 5); L6 = extract32(insn, 0, 6); switch (op0) { case 0x00: /* l.slli */ LOG_DIS("l.slli r%d, r%d, %d\n", rd, ra, L6); tcg_gen_shli_tl(cpu_R[rd], cpu_R[ra], (L6 & 0x1f)); break; case 0x01: /* l.srli */ LOG_DIS("l.srli r%d, r%d, %d\n", rd, ra, L6); tcg_gen_shri_tl(cpu_R[rd], cpu_R[ra], (L6 & 0x1f)); break; case 0x02: /* l.srai */ LOG_DIS("l.srai r%d, r%d, %d\n", rd, ra, L6); tcg_gen_sari_tl(cpu_R[rd], cpu_R[ra], (L6 & 0x1f)); break; case 0x03: /* l.rori */ LOG_DIS("l.rori r%d, r%d, %d\n", rd, ra, L6); tcg_gen_rotri_tl(cpu_R[rd], cpu_R[ra], (L6 & 0x1f)); break; default: gen_illegal_exception(dc); break; } } static void dec_M(DisasContext *dc, uint32_t insn) { uint32_t op0; uint32_t rd; uint32_t K16; op0 = extract32(insn, 16, 1); rd = extract32(insn, 21, 5); K16 = extract32(insn, 0, 16); switch (op0) { case 0x0: /* l.movhi */ LOG_DIS("l.movhi r%d, %d\n", rd, K16); tcg_gen_movi_tl(cpu_R[rd], (K16 << 16)); break; case 0x1: /* l.macrc */ LOG_DIS("l.macrc r%d\n", rd); tcg_gen_mov_tl(cpu_R[rd], maclo); tcg_gen_movi_tl(maclo, 0x0); tcg_gen_movi_tl(machi, 0x0); break; default: gen_illegal_exception(dc); break; } } static void dec_comp(DisasContext *dc, uint32_t insn) { uint32_t op0; uint32_t ra, rb; op0 = extract32(insn, 21, 5); ra = extract32(insn, 16, 5); rb = extract32(insn, 11, 5); tcg_gen_movi_i32(env_btaken, 0x0); /* unsigned integers */ tcg_gen_ext32u_tl(cpu_R[ra], cpu_R[ra]); tcg_gen_ext32u_tl(cpu_R[rb], cpu_R[rb]); switch (op0) { case 0x0: /* l.sfeq */ LOG_DIS("l.sfeq r%d, r%d\n", ra, rb); tcg_gen_setcond_tl(TCG_COND_EQ, env_btaken, cpu_R[ra], cpu_R[rb]); break; case 0x1: /* l.sfne */ LOG_DIS("l.sfne r%d, r%d\n", ra, rb); tcg_gen_setcond_tl(TCG_COND_NE, env_btaken, cpu_R[ra], cpu_R[rb]); break; case 0x2: /* l.sfgtu */ LOG_DIS("l.sfgtu r%d, r%d\n", ra, rb); tcg_gen_setcond_tl(TCG_COND_GTU, env_btaken, cpu_R[ra], cpu_R[rb]); break; case 0x3: /* l.sfgeu */ LOG_DIS("l.sfgeu r%d, r%d\n", ra, rb); tcg_gen_setcond_tl(TCG_COND_GEU, env_btaken, cpu_R[ra], cpu_R[rb]); break; case 0x4: /* l.sfltu */ LOG_DIS("l.sfltu r%d, r%d\n", ra, rb); tcg_gen_setcond_tl(TCG_COND_LTU, env_btaken, cpu_R[ra], cpu_R[rb]); break; case 0x5: /* l.sfleu */ LOG_DIS("l.sfleu r%d, r%d\n", ra, rb); tcg_gen_setcond_tl(TCG_COND_LEU, env_btaken, cpu_R[ra], cpu_R[rb]); break; case 0xa: /* l.sfgts */ LOG_DIS("l.sfgts r%d, r%d\n", ra, rb); tcg_gen_setcond_tl(TCG_COND_GT, env_btaken, cpu_R[ra], cpu_R[rb]); break; case 0xb: /* l.sfges */ LOG_DIS("l.sfges r%d, r%d\n", ra, rb); tcg_gen_setcond_tl(TCG_COND_GE, env_btaken, cpu_R[ra], cpu_R[rb]); break; case 0xc: /* l.sflts */ LOG_DIS("l.sflts r%d, r%d\n", ra, rb); tcg_gen_setcond_tl(TCG_COND_LT, env_btaken, cpu_R[ra], cpu_R[rb]); break; case 0xd: /* l.sfles */ LOG_DIS("l.sfles r%d, r%d\n", ra, rb); tcg_gen_setcond_tl(TCG_COND_LE, env_btaken, cpu_R[ra], cpu_R[rb]); break; default: gen_illegal_exception(dc); break; } wb_SR_F(); } static void dec_compi(DisasContext *dc, uint32_t insn) { uint32_t op0; uint32_t ra, I16; op0 = extract32(insn, 21, 5); ra = extract32(insn, 16, 5); I16 = extract32(insn, 0, 16); tcg_gen_movi_i32(env_btaken, 0x0); I16 = sign_extend(I16, 16); switch (op0) { case 0x0: /* l.sfeqi */ LOG_DIS("l.sfeqi r%d, %d\n", ra, I16); tcg_gen_setcondi_tl(TCG_COND_EQ, env_btaken, cpu_R[ra], I16); break; case 0x1: /* l.sfnei */ LOG_DIS("l.sfnei r%d, %d\n", ra, I16); tcg_gen_setcondi_tl(TCG_COND_NE, env_btaken, cpu_R[ra], I16); break; case 0x2: /* l.sfgtui */ LOG_DIS("l.sfgtui r%d, %d\n", ra, I16); tcg_gen_setcondi_tl(TCG_COND_GTU, env_btaken, cpu_R[ra], I16); break; case 0x3: /* l.sfgeui */ LOG_DIS("l.sfgeui r%d, %d\n", ra, I16); tcg_gen_setcondi_tl(TCG_COND_GEU, env_btaken, cpu_R[ra], I16); break; case 0x4: /* l.sfltui */ LOG_DIS("l.sfltui r%d, %d\n", ra, I16); tcg_gen_setcondi_tl(TCG_COND_LTU, env_btaken, cpu_R[ra], I16); break; case 0x5: /* l.sfleui */ LOG_DIS("l.sfleui r%d, %d\n", ra, I16); tcg_gen_setcondi_tl(TCG_COND_LEU, env_btaken, cpu_R[ra], I16); break; case 0xa: /* l.sfgtsi */ LOG_DIS("l.sfgtsi r%d, %d\n", ra, I16); tcg_gen_setcondi_tl(TCG_COND_GT, env_btaken, cpu_R[ra], I16); break; case 0xb: /* l.sfgesi */ LOG_DIS("l.sfgesi r%d, %d\n", ra, I16); tcg_gen_setcondi_tl(TCG_COND_GE, env_btaken, cpu_R[ra], I16); break; case 0xc: /* l.sfltsi */ LOG_DIS("l.sfltsi r%d, %d\n", ra, I16); tcg_gen_setcondi_tl(TCG_COND_LT, env_btaken, cpu_R[ra], I16); break; case 0xd: /* l.sflesi */ LOG_DIS("l.sflesi r%d, %d\n", ra, I16); tcg_gen_setcondi_tl(TCG_COND_LE, env_btaken, cpu_R[ra], I16); break; default: gen_illegal_exception(dc); break; } wb_SR_F(); } static void dec_sys(DisasContext *dc, uint32_t insn) { uint32_t op0; #ifdef OPENRISC_DISAS uint32_t K16; #endif op0 = extract32(insn, 16, 8); #ifdef OPENRISC_DISAS K16 = extract32(insn, 0, 16); #endif switch (op0) { case 0x000: /* l.sys */ LOG_DIS("l.sys %d\n", K16); tcg_gen_movi_tl(cpu_pc, dc->pc); gen_exception(dc, EXCP_SYSCALL); dc->is_jmp = DISAS_UPDATE; break; case 0x100: /* l.trap */ LOG_DIS("l.trap %d\n", K16); #if defined(CONFIG_USER_ONLY) return; #else if (dc->mem_idx == MMU_USER_IDX) { gen_illegal_exception(dc); return; } tcg_gen_movi_tl(cpu_pc, dc->pc); gen_exception(dc, EXCP_TRAP); #endif break; case 0x300: /* l.csync */ LOG_DIS("l.csync\n"); #if defined(CONFIG_USER_ONLY) return; #else if (dc->mem_idx == MMU_USER_IDX) { gen_illegal_exception(dc); return; } #endif break; case 0x200: /* l.msync */ LOG_DIS("l.msync\n"); #if defined(CONFIG_USER_ONLY) return; #else if (dc->mem_idx == MMU_USER_IDX) { gen_illegal_exception(dc); return; } #endif break; case 0x270: /* l.psync */ LOG_DIS("l.psync\n"); #if defined(CONFIG_USER_ONLY) return; #else if (dc->mem_idx == MMU_USER_IDX) { gen_illegal_exception(dc); return; } #endif break; default: gen_illegal_exception(dc); break; } } static void dec_float(DisasContext *dc, uint32_t insn) { uint32_t op0; uint32_t ra, rb, rd; op0 = extract32(insn, 0, 8); ra = extract32(insn, 16, 5); rb = extract32(insn, 11, 5); rd = extract32(insn, 21, 5); switch (op0) { case 0x00: /* lf.add.s */ LOG_DIS("lf.add.s r%d, r%d, r%d\n", rd, ra, rb); gen_helper_float_add_s(cpu_R[rd], cpu_env, cpu_R[ra], cpu_R[rb]); break; case 0x01: /* lf.sub.s */ LOG_DIS("lf.sub.s r%d, r%d, r%d\n", rd, ra, rb); gen_helper_float_sub_s(cpu_R[rd], cpu_env, cpu_R[ra], cpu_R[rb]); break; case 0x02: /* lf.mul.s */ LOG_DIS("lf.mul.s r%d, r%d, r%d\n", rd, ra, rb); if (ra != 0 && rb != 0) { gen_helper_float_mul_s(cpu_R[rd], cpu_env, cpu_R[ra], cpu_R[rb]); } else { tcg_gen_ori_tl(fpcsr, fpcsr, FPCSR_ZF); tcg_gen_movi_i32(cpu_R[rd], 0x0); } break; case 0x03: /* lf.div.s */ LOG_DIS("lf.div.s r%d, r%d, r%d\n", rd, ra, rb); gen_helper_float_div_s(cpu_R[rd], cpu_env, cpu_R[ra], cpu_R[rb]); break; case 0x04: /* lf.itof.s */ LOG_DIS("lf.itof r%d, r%d\n", rd, ra); gen_helper_itofs(cpu_R[rd], cpu_env, cpu_R[ra]); break; case 0x05: /* lf.ftoi.s */ LOG_DIS("lf.ftoi r%d, r%d\n", rd, ra); gen_helper_ftois(cpu_R[rd], cpu_env, cpu_R[ra]); break; case 0x06: /* lf.rem.s */ LOG_DIS("lf.rem.s r%d, r%d, r%d\n", rd, ra, rb); gen_helper_float_rem_s(cpu_R[rd], cpu_env, cpu_R[ra], cpu_R[rb]); break; case 0x07: /* lf.madd.s */ LOG_DIS("lf.madd.s r%d, r%d, r%d\n", rd, ra, rb); gen_helper_float_muladd_s(cpu_R[rd], cpu_env, cpu_R[ra], cpu_R[rb]); break; case 0x08: /* lf.sfeq.s */ LOG_DIS("lf.sfeq.s r%d, r%d\n", ra, rb); gen_helper_float_eq_s(env_btaken, cpu_env, cpu_R[ra], cpu_R[rb]); break; case 0x09: /* lf.sfne.s */ LOG_DIS("lf.sfne.s r%d, r%d\n", ra, rb); gen_helper_float_ne_s(env_btaken, cpu_env, cpu_R[ra], cpu_R[rb]); break; case 0x0a: /* lf.sfgt.s */ LOG_DIS("lf.sfgt.s r%d, r%d\n", ra, rb); gen_helper_float_gt_s(env_btaken, cpu_env, cpu_R[ra], cpu_R[rb]); break; case 0x0b: /* lf.sfge.s */ LOG_DIS("lf.sfge.s r%d, r%d\n", ra, rb); gen_helper_float_ge_s(env_btaken, cpu_env, cpu_R[ra], cpu_R[rb]); break; case 0x0c: /* lf.sflt.s */ LOG_DIS("lf.sflt.s r%d, r%d\n", ra, rb); gen_helper_float_lt_s(env_btaken, cpu_env, cpu_R[ra], cpu_R[rb]); break; case 0x0d: /* lf.sfle.s */ LOG_DIS("lf.sfle.s r%d, r%d\n", ra, rb); gen_helper_float_le_s(env_btaken, cpu_env, cpu_R[ra], cpu_R[rb]); break; /* not used yet, open it when we need or64. */ /*#ifdef TARGET_OPENRISC64 case 0x10: lf.add.d LOG_DIS("lf.add.d r%d, r%d, r%d\n", rd, ra, rb); check_of64s(dc); gen_helper_float_add_d(cpu_R[rd], cpu_env, cpu_R[ra], cpu_R[rb]); break; case 0x11: lf.sub.d LOG_DIS("lf.sub.d r%d, r%d, r%d\n", rd, ra, rb); check_of64s(dc); gen_helper_float_sub_d(cpu_R[rd], cpu_env, cpu_R[ra], cpu_R[rb]); break; case 0x12: lf.mul.d LOG_DIS("lf.mul.d r%d, r%d, r%d\n", rd, ra, rb); check_of64s(dc); if (ra != 0 && rb != 0) { gen_helper_float_mul_d(cpu_R[rd], cpu_env, cpu_R[ra], cpu_R[rb]); } else { tcg_gen_ori_tl(fpcsr, fpcsr, FPCSR_ZF); tcg_gen_movi_i64(cpu_R[rd], 0x0); } break; case 0x13: lf.div.d LOG_DIS("lf.div.d r%d, r%d, r%d\n", rd, ra, rb); check_of64s(dc); gen_helper_float_div_d(cpu_R[rd], cpu_env, cpu_R[ra], cpu_R[rb]); break; case 0x14: lf.itof.d LOG_DIS("lf.itof r%d, r%d\n", rd, ra); check_of64s(dc); gen_helper_itofd(cpu_R[rd], cpu_env, cpu_R[ra]); break; case 0x15: lf.ftoi.d LOG_DIS("lf.ftoi r%d, r%d\n", rd, ra); check_of64s(dc); gen_helper_ftoid(cpu_R[rd], cpu_env, cpu_R[ra]); break; case 0x16: lf.rem.d LOG_DIS("lf.rem.d r%d, r%d, r%d\n", rd, ra, rb); check_of64s(dc); gen_helper_float_rem_d(cpu_R[rd], cpu_env, cpu_R[ra], cpu_R[rb]); break; case 0x17: lf.madd.d LOG_DIS("lf.madd.d r%d, r%d, r%d\n", rd, ra, rb); check_of64s(dc); gen_helper_float_muladd_d(cpu_R[rd], cpu_env, cpu_R[ra], cpu_R[rb]); break; case 0x18: lf.sfeq.d LOG_DIS("lf.sfeq.d r%d, r%d\n", ra, rb); check_of64s(dc); gen_helper_float_eq_d(env_btaken, cpu_env, cpu_R[ra], cpu_R[rb]); break; case 0x1a: lf.sfgt.d LOG_DIS("lf.sfgt.d r%d, r%d\n", ra, rb); check_of64s(dc); gen_helper_float_gt_d(env_btaken, cpu_env, cpu_R[ra], cpu_R[rb]); break; case 0x1b: lf.sfge.d LOG_DIS("lf.sfge.d r%d, r%d\n", ra, rb); check_of64s(dc); gen_helper_float_ge_d(env_btaken, cpu_env, cpu_R[ra], cpu_R[rb]); break; case 0x19: lf.sfne.d LOG_DIS("lf.sfne.d r%d, r%d\n", ra, rb); check_of64s(dc); gen_helper_float_ne_d(env_btaken, cpu_env, cpu_R[ra], cpu_R[rb]); break; case 0x1c: lf.sflt.d LOG_DIS("lf.sflt.d r%d, r%d\n", ra, rb); check_of64s(dc); gen_helper_float_lt_d(env_btaken, cpu_env, cpu_R[ra], cpu_R[rb]); break; case 0x1d: lf.sfle.d LOG_DIS("lf.sfle.d r%d, r%d\n", ra, rb); check_of64s(dc); gen_helper_float_le_d(env_btaken, cpu_env, cpu_R[ra], cpu_R[rb]); break; #endif*/ default: gen_illegal_exception(dc); break; } wb_SR_F(); } static void disas_openrisc_insn(DisasContext *dc, OpenRISCCPU *cpu) { uint32_t op0; uint32_t insn; insn = cpu_ldl_code(&cpu->env, dc->pc); op0 = extract32(insn, 26, 6); switch (op0) { case 0x06: dec_M(dc, insn); break; case 0x08: dec_sys(dc, insn); break; case 0x2e: dec_logic(dc, insn); break; case 0x2f: dec_compi(dc, insn); break; case 0x31: dec_mac(dc, insn); break; case 0x32: dec_float(dc, insn); break; case 0x38: dec_calc(dc, insn); break; case 0x39: dec_comp(dc, insn); break; default: dec_misc(dc, insn); break; } } static void check_breakpoint(OpenRISCCPU *cpu, DisasContext *dc) { CPUBreakpoint *bp; if (unlikely(!QTAILQ_EMPTY(&cpu->env.breakpoints))) { QTAILQ_FOREACH(bp, &cpu->env.breakpoints, entry) { if (bp->pc == dc->pc) { tcg_gen_movi_tl(cpu_pc, dc->pc); gen_exception(dc, EXCP_DEBUG); dc->is_jmp = DISAS_UPDATE; } } } } static inline void gen_intermediate_code_internal(OpenRISCCPU *cpu, TranslationBlock *tb, int search_pc) { struct DisasContext ctx, *dc = &ctx; uint16_t *gen_opc_end; uint32_t pc_start; int j, k; uint32_t next_page_start; int num_insns; int max_insns; qemu_log_try_set_file(stderr); pc_start = tb->pc; dc->tb = tb; gen_opc_end = gen_opc_buf + OPC_MAX_SIZE; dc->is_jmp = DISAS_NEXT; dc->ppc = pc_start; dc->pc = pc_start; dc->flags = cpu->env.cpucfgr; dc->mem_idx = cpu_mmu_index(&cpu->env); dc->synced_flags = dc->tb_flags = tb->flags; dc->delayed_branch = !!(dc->tb_flags & D_FLAG); dc->singlestep_enabled = cpu->env.singlestep_enabled; if (qemu_loglevel_mask(CPU_LOG_TB_IN_ASM)) { qemu_log("-----------------------------------------\n"); log_cpu_state(&cpu->env, 0); } next_page_start = (pc_start & TARGET_PAGE_MASK) + TARGET_PAGE_SIZE; k = -1; num_insns = 0; max_insns = tb->cflags & CF_COUNT_MASK; if (max_insns == 0) { max_insns = CF_COUNT_MASK; } gen_icount_start(); do { check_breakpoint(cpu, dc); if (search_pc) { j = gen_opc_ptr - gen_opc_buf; if (k < j) { k++; while (k < j) { gen_opc_instr_start[k++] = 0; } } gen_opc_pc[k] = dc->pc; gen_opc_instr_start[k] = 1; gen_opc_icount[k] = num_insns; } if (unlikely(qemu_loglevel_mask(CPU_LOG_TB_OP))) { tcg_gen_debug_insn_start(dc->pc); } if (num_insns + 1 == max_insns && (tb->cflags & CF_LAST_IO)) { gen_io_start(); } dc->ppc = dc->pc - 4; dc->npc = dc->pc + 4; tcg_gen_movi_tl(cpu_ppc, dc->ppc); tcg_gen_movi_tl(cpu_npc, dc->npc); disas_openrisc_insn(dc, cpu); dc->pc = dc->npc; num_insns++; /* delay slot */ if (dc->delayed_branch) { dc->delayed_branch--; if (!dc->delayed_branch) { dc->tb_flags &= ~D_FLAG; gen_sync_flags(dc); tcg_gen_mov_tl(cpu_pc, jmp_pc); tcg_gen_mov_tl(cpu_npc, jmp_pc); tcg_gen_movi_tl(jmp_pc, 0); tcg_gen_exit_tb(0); dc->is_jmp = DISAS_JUMP; break; } } } while (!dc->is_jmp && gen_opc_ptr < gen_opc_end && !cpu->env.singlestep_enabled && !singlestep && (dc->pc < next_page_start) && num_insns < max_insns); if (tb->cflags & CF_LAST_IO) { gen_io_end(); } if (dc->is_jmp == DISAS_NEXT) { dc->is_jmp = DISAS_UPDATE; tcg_gen_movi_tl(cpu_pc, dc->pc); } if (unlikely(cpu->env.singlestep_enabled)) { if (dc->is_jmp == DISAS_NEXT) { tcg_gen_movi_tl(cpu_pc, dc->pc); } gen_exception(dc, EXCP_DEBUG); } else { switch (dc->is_jmp) { case DISAS_NEXT: gen_goto_tb(dc, 0, dc->pc); break; default: case DISAS_JUMP: break; case DISAS_UPDATE: /* indicate that the hash table must be used to find the next TB */ tcg_gen_exit_tb(0); break; case DISAS_TB_JUMP: /* nothing more to generate */ break; } } gen_icount_end(tb, num_insns); *gen_opc_ptr = INDEX_op_end; if (search_pc) { j = gen_opc_ptr - gen_opc_buf; k++; while (k <= j) { gen_opc_instr_start[k++] = 0; } } else { tb->size = dc->pc - pc_start; tb->icount = num_insns; } #ifdef DEBUG_DISAS if (qemu_loglevel_mask(CPU_LOG_TB_IN_ASM)) { qemu_log("\n"); log_target_disas(pc_start, dc->pc - pc_start, 0); qemu_log("\nisize=%d osize=%td\n", dc->pc - pc_start, gen_opc_ptr - gen_opc_buf); } #endif } void gen_intermediate_code(CPUOpenRISCState *env, struct TranslationBlock *tb) { gen_intermediate_code_internal(openrisc_env_get_cpu(env), tb, 0); } void gen_intermediate_code_pc(CPUOpenRISCState *env, struct TranslationBlock *tb) { gen_intermediate_code_internal(openrisc_env_get_cpu(env), tb, 1); } void cpu_dump_state(CPUOpenRISCState *env, FILE *f, fprintf_function cpu_fprintf, int flags) { int i; uint32_t *regs = env->gpr; cpu_fprintf(f, "PC=%08x\n", env->pc); for (i = 0; i < 32; ++i) { cpu_fprintf(f, "R%02d=%08x%c", i, regs[i], (i % 4) == 3 ? '\n' : ' '); } } void restore_state_to_opc(CPUOpenRISCState *env, TranslationBlock *tb, int pc_pos) { env->pc = gen_opc_pc[pc_pos]; }