diff options
| -rw-r--r-- | disas.c | 2 | ||||
| -rw-r--r-- | disas/Makefile.objs | 1 | ||||
| -rw-r--r-- | disas/riscv.c | 3048 | ||||
| -rw-r--r-- | include/disas/bfd.h | 2 |
4 files changed, 3053 insertions, 0 deletions
@@ -522,6 +522,8 @@ void disas(FILE *out, void *code, unsigned long size) # ifdef _ARCH_PPC64 s.info.cap_mode = CS_MODE_64; # endif +#elif defined(__riscv__) + print_insn = print_insn_riscv; #elif defined(__aarch64__) && defined(CONFIG_ARM_A64_DIS) print_insn = print_insn_arm_a64; s.info.cap_arch = CS_ARCH_ARM64; diff --git a/disas/Makefile.objs b/disas/Makefile.objs index 53556f8f5a..213be2fab2 100644 --- a/disas/Makefile.objs +++ b/disas/Makefile.objs @@ -17,6 +17,7 @@ common-obj-$(CONFIG_MIPS_DIS) += mips.o common-obj-$(CONFIG_NIOS2_DIS) += nios2.o common-obj-$(CONFIG_MOXIE_DIS) += moxie.o common-obj-$(CONFIG_PPC_DIS) += ppc.o +common-obj-$(CONFIG_RISCV_DIS) += riscv.o common-obj-$(CONFIG_S390_DIS) += s390.o common-obj-$(CONFIG_SH4_DIS) += sh4.o common-obj-$(CONFIG_SPARC_DIS) += sparc.o diff --git a/disas/riscv.c b/disas/riscv.c new file mode 100644 index 0000000000..3c17501120 --- /dev/null +++ b/disas/riscv.c @@ -0,0 +1,3048 @@ +/* + * QEMU RISC-V Disassembler + * + * Copyright (c) 2016-2017 Michael Clark <michaeljclark@mac.com> + * Copyright (c) 2017-2018 SiFive, Inc. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2 or later, as published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License along with + * this program. If not, see <http://www.gnu.org/licenses/>. + */ + +#include "qemu/osdep.h" +#include "disas/bfd.h" + + +/* types */ + +typedef uint64_t rv_inst; +typedef uint16_t rv_opcode; + +/* enums */ + +typedef enum { + rv32, + rv64, + rv128 +} rv_isa; + +typedef enum { + rv_rm_rne = 0, + rv_rm_rtz = 1, + rv_rm_rdn = 2, + rv_rm_rup = 3, + rv_rm_rmm = 4, + rv_rm_dyn = 7, +} rv_rm; + +typedef enum { + rv_fence_i = 8, + rv_fence_o = 4, + rv_fence_r = 2, + rv_fence_w = 1, +} rv_fence; + +typedef enum { + rv_ireg_zero, + rv_ireg_ra, + rv_ireg_sp, + rv_ireg_gp, + rv_ireg_tp, + rv_ireg_t0, + rv_ireg_t1, + rv_ireg_t2, + rv_ireg_s0, + rv_ireg_s1, + rv_ireg_a0, + rv_ireg_a1, + rv_ireg_a2, + rv_ireg_a3, + rv_ireg_a4, + rv_ireg_a5, + rv_ireg_a6, + rv_ireg_a7, + rv_ireg_s2, + rv_ireg_s3, + rv_ireg_s4, + rv_ireg_s5, + rv_ireg_s6, + rv_ireg_s7, + rv_ireg_s8, + rv_ireg_s9, + rv_ireg_s10, + rv_ireg_s11, + rv_ireg_t3, + rv_ireg_t4, + rv_ireg_t5, + rv_ireg_t6, +} rv_ireg; + +typedef enum { + rvc_end, + rvc_simm_6, + rvc_imm_6, + rvc_imm_7, + rvc_imm_8, + rvc_imm_9, + rvc_imm_10, + rvc_imm_12, + rvc_imm_18, + rvc_imm_nz, + rvc_imm_x2, + rvc_imm_x4, + rvc_imm_x8, + rvc_imm_x16, + rvc_rd_b3, + rvc_rs1_b3, + rvc_rs2_b3, + rvc_rd_eq_rs1, + rvc_rd_eq_ra, + rvc_rd_eq_sp, + rvc_rd_eq_x0, + rvc_rs1_eq_sp, + rvc_rs1_eq_x0, + rvc_rs2_eq_x0, + rvc_rd_ne_x0_x2, + rvc_rd_ne_x0, + rvc_rs1_ne_x0, + rvc_rs2_ne_x0, + rvc_rs2_eq_rs1, + rvc_rs1_eq_ra, + rvc_imm_eq_zero, + rvc_imm_eq_n1, + rvc_imm_eq_p1, + rvc_csr_eq_0x001, + rvc_csr_eq_0x002, + rvc_csr_eq_0x003, + rvc_csr_eq_0xc00, + rvc_csr_eq_0xc01, + rvc_csr_eq_0xc02, + rvc_csr_eq_0xc80, + rvc_csr_eq_0xc81, + rvc_csr_eq_0xc82, +} rvc_constraint; + +typedef enum { + rv_codec_illegal, + rv_codec_none, + rv_codec_u, + rv_codec_uj, + rv_codec_i, + rv_codec_i_sh5, + rv_codec_i_sh6, + rv_codec_i_sh7, + rv_codec_i_csr, + rv_codec_s, + rv_codec_sb, + rv_codec_r, + rv_codec_r_m, + rv_codec_r4_m, + rv_codec_r_a, + rv_codec_r_l, + rv_codec_r_f, + rv_codec_cb, + rv_codec_cb_imm, + rv_codec_cb_sh5, + rv_codec_cb_sh6, + rv_codec_ci, + rv_codec_ci_sh5, + rv_codec_ci_sh6, + rv_codec_ci_16sp, + rv_codec_ci_lwsp, + rv_codec_ci_ldsp, + rv_codec_ci_lqsp, + rv_codec_ci_li, + rv_codec_ci_lui, + rv_codec_ci_none, + rv_codec_ciw_4spn, + rv_codec_cj, + rv_codec_cj_jal, + rv_codec_cl_lw, + rv_codec_cl_ld, + rv_codec_cl_lq, + rv_codec_cr, + rv_codec_cr_mv, + rv_codec_cr_jalr, + rv_codec_cr_jr, + rv_codec_cs, + rv_codec_cs_sw, + rv_codec_cs_sd, + rv_codec_cs_sq, + rv_codec_css_swsp, + rv_codec_css_sdsp, + rv_codec_css_sqsp, +} rv_codec; + +typedef enum { + rv_op_illegal = 0, + rv_op_lui = 1, + rv_op_auipc = 2, + rv_op_jal = 3, + rv_op_jalr = 4, + rv_op_beq = 5, + rv_op_bne = 6, + rv_op_blt = 7, + rv_op_bge = 8, + rv_op_bltu = 9, + rv_op_bgeu = 10, + rv_op_lb = 11, + rv_op_lh = 12, + rv_op_lw = 13, + rv_op_lbu = 14, + rv_op_lhu = 15, + rv_op_sb = 16, + rv_op_sh = 17, + rv_op_sw = 18, + rv_op_addi = 19, + rv_op_slti = 20, + rv_op_sltiu = 21, + rv_op_xori = 22, + rv_op_ori = 23, + rv_op_andi = 24, + rv_op_slli = 25, + rv_op_srli = 26, + rv_op_srai = 27, + rv_op_add = 28, + rv_op_sub = 29, + rv_op_sll = 30, + rv_op_slt = 31, + rv_op_sltu = 32, + rv_op_xor = 33, + rv_op_srl = 34, + rv_op_sra = 35, + rv_op_or = 36, + rv_op_and = 37, + rv_op_fence = 38, + rv_op_fence_i = 39, + rv_op_lwu = 40, + rv_op_ld = 41, + rv_op_sd = 42, + rv_op_addiw = 43, + rv_op_slliw = 44, + rv_op_srliw = 45, + rv_op_sraiw = 46, + rv_op_addw = 47, + rv_op_subw = 48, + rv_op_sllw = 49, + rv_op_srlw = 50, + rv_op_sraw = 51, + rv_op_ldu = 52, + rv_op_lq = 53, + rv_op_sq = 54, + rv_op_addid = 55, + rv_op_sllid = 56, + rv_op_srlid = 57, + rv_op_sraid = 58, + rv_op_addd = 59, + rv_op_subd = 60, + rv_op_slld = 61, + rv_op_srld = 62, + rv_op_srad = 63, + rv_op_mul = 64, + rv_op_mulh = 65, + rv_op_mulhsu = 66, + rv_op_mulhu = 67, + rv_op_div = 68, + rv_op_divu = 69, + rv_op_rem = 70, + rv_op_remu = 71, + rv_op_mulw = 72, + rv_op_divw = 73, + rv_op_divuw = 74, + rv_op_remw = 75, + rv_op_remuw = 76, + rv_op_muld = 77, + rv_op_divd = 78, + rv_op_divud = 79, + rv_op_remd = 80, + rv_op_remud = 81, + rv_op_lr_w = 82, + rv_op_sc_w = 83, + rv_op_amoswap_w = 84, + rv_op_amoadd_w = 85, + rv_op_amoxor_w = 86, + rv_op_amoor_w = 87, + rv_op_amoand_w = 88, + rv_op_amomin_w = 89, + rv_op_amomax_w = 90, + rv_op_amominu_w = 91, + rv_op_amomaxu_w = 92, + rv_op_lr_d = 93, + rv_op_sc_d = 94, + rv_op_amoswap_d = 95, + rv_op_amoadd_d = 96, + rv_op_amoxor_d = 97, + rv_op_amoor_d = 98, + rv_op_amoand_d = 99, + rv_op_amomin_d = 100, + rv_op_amomax_d = 101, + rv_op_amominu_d = 102, + rv_op_amomaxu_d = 103, + rv_op_lr_q = 104, + rv_op_sc_q = 105, + rv_op_amoswap_q = 106, + rv_op_amoadd_q = 107, + rv_op_amoxor_q = 108, + rv_op_amoor_q = 109, + rv_op_amoand_q = 110, + rv_op_amomin_q = 111, + rv_op_amomax_q = 112, + rv_op_amominu_q = 113, + rv_op_amomaxu_q = 114, + rv_op_ecall = 115, + rv_op_ebreak = 116, + rv_op_uret = 117, + rv_op_sret = 118, + rv_op_hret = 119, + rv_op_mret = 120, + rv_op_dret = 121, + rv_op_sfence_vm = 122, + rv_op_sfence_vma = 123, + rv_op_wfi = 124, + rv_op_csrrw = 125, + rv_op_csrrs = 126, + rv_op_csrrc = 127, + rv_op_csrrwi = 128, + rv_op_csrrsi = 129, + rv_op_csrrci = 130, + rv_op_flw = 131, + rv_op_fsw = 132, + rv_op_fmadd_s = 133, + rv_op_fmsub_s = 134, + rv_op_fnmsub_s = 135, + rv_op_fnmadd_s = 136, + rv_op_fadd_s = 137, + rv_op_fsub_s = 138, + rv_op_fmul_s = 139, + rv_op_fdiv_s = 140, + rv_op_fsgnj_s = 141, + rv_op_fsgnjn_s = 142, + rv_op_fsgnjx_s = 143, + rv_op_fmin_s = 144, + rv_op_fmax_s = 145, + rv_op_fsqrt_s = 146, + rv_op_fle_s = 147, + rv_op_flt_s = 148, + rv_op_feq_s = 149, + rv_op_fcvt_w_s = 150, + rv_op_fcvt_wu_s = 151, + rv_op_fcvt_s_w = 152, + rv_op_fcvt_s_wu = 153, + rv_op_fmv_x_s = 154, + rv_op_fclass_s = 155, + rv_op_fmv_s_x = 156, + rv_op_fcvt_l_s = 157, + rv_op_fcvt_lu_s = 158, + rv_op_fcvt_s_l = 159, + rv_op_fcvt_s_lu = 160, + rv_op_fld = 161, + rv_op_fsd = 162, + rv_op_fmadd_d = 163, + rv_op_fmsub_d = 164, + rv_op_fnmsub_d = 165, + rv_op_fnmadd_d = 166, + rv_op_fadd_d = 167, + rv_op_fsub_d = 168, + rv_op_fmul_d = 169, + rv_op_fdiv_d = 170, + rv_op_fsgnj_d = 171, + rv_op_fsgnjn_d = 172, + rv_op_fsgnjx_d = 173, + rv_op_fmin_d = 174, + rv_op_fmax_d = 175, + rv_op_fcvt_s_d = 176, + rv_op_fcvt_d_s = 177, + rv_op_fsqrt_d = 178, + rv_op_fle_d = 179, + rv_op_flt_d = 180, + rv_op_feq_d = 181, + rv_op_fcvt_w_d = 182, + rv_op_fcvt_wu_d = 183, + rv_op_fcvt_d_w = 184, + rv_op_fcvt_d_wu = 185, + rv_op_fclass_d = 186, + rv_op_fcvt_l_d = 187, + rv_op_fcvt_lu_d = 188, + rv_op_fmv_x_d = 189, + rv_op_fcvt_d_l = 190, + rv_op_fcvt_d_lu = 191, + rv_op_fmv_d_x = 192, + rv_op_flq = 193, + rv_op_fsq = 194, + rv_op_fmadd_q = 195, + rv_op_fmsub_q = 196, + rv_op_fnmsub_q = 197, + rv_op_fnmadd_q = 198, + rv_op_fadd_q = 199, + rv_op_fsub_q = 200, + rv_op_fmul_q = 201, + rv_op_fdiv_q = 202, + rv_op_fsgnj_q = 203, + rv_op_fsgnjn_q = 204, + rv_op_fsgnjx_q = 205, + rv_op_fmin_q = 206, + rv_op_fmax_q = 207, + rv_op_fcvt_s_q = 208, + rv_op_fcvt_q_s = 209, + rv_op_fcvt_d_q = 210, + rv_op_fcvt_q_d = 211, + rv_op_fsqrt_q = 212, + rv_op_fle_q = 213, + rv_op_flt_q = 214, + rv_op_feq_q = 215, + rv_op_fcvt_w_q = 216, + rv_op_fcvt_wu_q = 217, + rv_op_fcvt_q_w = 218, + rv_op_fcvt_q_wu = 219, + rv_op_fclass_q = 220, + rv_op_fcvt_l_q = 221, + rv_op_fcvt_lu_q = 222, + rv_op_fcvt_q_l = 223, + rv_op_fcvt_q_lu = 224, + rv_op_fmv_x_q = 225, + rv_op_fmv_q_x = 226, + rv_op_c_addi4spn = 227, + rv_op_c_fld = 228, + rv_op_c_lw = 229, + rv_op_c_flw = 230, + rv_op_c_fsd = 231, + rv_op_c_sw = 232, + rv_op_c_fsw = 233, + rv_op_c_nop = 234, + rv_op_c_addi = 235, + rv_op_c_jal = 236, + rv_op_c_li = 237, + rv_op_c_addi16sp = 238, + rv_op_c_lui = 239, + rv_op_c_srli = 240, + rv_op_c_srai = 241, + rv_op_c_andi = 242, + rv_op_c_sub = 243, + rv_op_c_xor = 244, + rv_op_c_or = 245, + rv_op_c_and = 246, + rv_op_c_subw = 247, + rv_op_c_addw = 248, + rv_op_c_j = 249, + rv_op_c_beqz = 250, + rv_op_c_bnez = 251, + rv_op_c_slli = 252, + rv_op_c_fldsp = 253, + rv_op_c_lwsp = 254, + rv_op_c_flwsp = 255, + rv_op_c_jr = 256, + rv_op_c_mv = 257, + rv_op_c_ebreak = 258, + rv_op_c_jalr = 259, + rv_op_c_add = 260, + rv_op_c_fsdsp = 261, + rv_op_c_swsp = 262, + rv_op_c_fswsp = 263, + rv_op_c_ld = 264, + rv_op_c_sd = 265, + rv_op_c_addiw = 266, + rv_op_c_ldsp = 267, + rv_op_c_sdsp = 268, + rv_op_c_lq = 269, + rv_op_c_sq = 270, + rv_op_c_lqsp = 271, + rv_op_c_sqsp = 272, + rv_op_nop = 273, + rv_op_mv = 274, + rv_op_not = 275, + rv_op_neg = 276, + rv_op_negw = 277, + rv_op_sext_w = 278, + rv_op_seqz = 279, + rv_op_snez = 280, + rv_op_sltz = 281, + rv_op_sgtz = 282, + rv_op_fmv_s = 283, + rv_op_fabs_s = 284, + rv_op_fneg_s = 285, + rv_op_fmv_d = 286, + rv_op_fabs_d = 287, + rv_op_fneg_d = 288, + rv_op_fmv_q = 289, + rv_op_fabs_q = 290, + rv_op_fneg_q = 291, + rv_op_beqz = 292, + rv_op_bnez = 293, + rv_op_blez = 294, + rv_op_bgez = 295, + rv_op_bltz = 296, + rv_op_bgtz = 297, + rv_op_ble = 298, + rv_op_bleu = 299, + rv_op_bgt = 300, + rv_op_bgtu = 301, + rv_op_j = 302, + rv_op_ret = 303, + rv_op_jr = 304, + rv_op_rdcycle = 305, + rv_op_rdtime = 306, + rv_op_rdinstret = 307, + rv_op_rdcycleh = 308, + rv_op_rdtimeh = 309, + rv_op_rdinstreth = 310, + rv_op_frcsr = 311, + rv_op_frrm = 312, + rv_op_frflags = 313, + rv_op_fscsr = 314, + rv_op_fsrm = 315, + rv_op_fsflags = 316, + rv_op_fsrmi = 317, + rv_op_fsflagsi = 318, +} rv_op; + +/* structures */ + +typedef struct { + uint64_t pc; + uint64_t inst; + int32_t imm; + uint16_t op; + uint8_t codec; + uint8_t rd; + uint8_t rs1; + uint8_t rs2; + uint8_t rs3; + uint8_t rm; + uint8_t pred; + uint8_t succ; + uint8_t aq; + uint8_t rl; +} rv_decode; + +typedef struct { + const int op; + const rvc_constraint *constraints; +} rv_comp_data; + +typedef struct { + const char * const name; + const rv_codec codec; + const char * const format; + const rv_comp_data *pseudo; + const int decomp_rv32; + const int decomp_rv64; + const int decomp_rv128; +} rv_opcode_data; + +/* register names */ + +static const char rv_ireg_name_sym[32][5] = { + "zero", "ra", "sp", "gp", "tp", "t0", "t1", "t2", + "s0", "s1", "a0", "a1", "a2", "a3", "a4", "a5", + "a6", "a7", "s2", "s3", "s4", "s5", "s6", "s7", + "s8", "s9", "s10", "s11", "t3", "t4", "t5", "t6", +}; + +static const char rv_freg_name_sym[32][5] = { + "ft0", "ft1", "ft2", "ft3", "ft4", "ft5", "ft6", "ft7", + "fs0", "fs1", "fa0", "fa1", "fa2", "fa3", "fa4", "fa5", + "fa6", "fa7", "fs2", "fs3", "fs4", "fs5", "fs6", "fs7", + "fs8", "fs9", "fs10", "fs11", "ft8", "ft9", "ft10", "ft11", +}; + +/* instruction formats */ + +#define rv_fmt_none "O\t" +#define rv_fmt_rs1 "O\t1" +#define rv_fmt_offset "O\to" +#define rv_fmt_pred_succ "O\tp,s" +#define rv_fmt_rs1_rs2 "O\t1,2" +#define rv_fmt_rd_imm "O\t0,i" +#define rv_fmt_rd_offset "O\t0,o" +#define rv_fmt_rd_rs1_rs2 "O\t0,1,2" +#define rv_fmt_frd_rs1 "O\t3,1" +#define rv_fmt_rd_frs1 "O\t0,4" +#define rv_fmt_rd_frs1_frs2 "O\t0,4,5" +#define rv_fmt_frd_frs1_frs2 "O\t3,4,5" +#define rv_fmt_rm_frd_frs1 "O\tr,3,4" +#define rv_fmt_rm_frd_rs1 "O\tr,3,1" +#define rv_fmt_rm_rd_frs1 "O\tr,0,4" +#define rv_fmt_rm_frd_frs1_frs2 "O\tr,3,4,5" +#define rv_fmt_rm_frd_frs1_frs2_frs3 "O\tr,3,4,5,6" +#define rv_fmt_rd_rs1_imm "O\t0,1,i" +#define rv_fmt_rd_rs1_offset "O\t0,1,i" +#define rv_fmt_rd_offset_rs1 "O\t0,i(1)" +#define rv_fmt_frd_offset_rs1 "O\t3,i(1)" +#define rv_fmt_rd_csr_rs1 "O\t0,c,1" +#define rv_fmt_rd_csr_zimm "O\t0,c,7" +#define rv_fmt_rs2_offset_rs1 "O\t2,i(1)" +#define rv_fmt_frs2_offset_rs1 "O\t5,i(1)" +#define rv_fmt_rs1_rs2_offset "O\t1,2,o" +#define rv_fmt_rs2_rs1_offset "O\t2,1,o" +#define rv_fmt_aqrl_rd_rs2_rs1 "OAR\t0,2,(1)" +#define rv_fmt_aqrl_rd_rs1 "OAR\t0,(1)" +#define rv_fmt_rd "O\t0" +#define rv_fmt_rd_zimm "O\t0,7" +#define rv_fmt_rd_rs1 "O\t0,1" +#define rv_fmt_rd_rs2 "O\t0,2" +#define rv_fmt_rs1_offset "O\t1,o" +#define rv_fmt_rs2_offset "O\t2,o" + +/* pseudo-instruction constraints */ + +static const rvc_constraint rvcc_jal[] = { rvc_rd_eq_ra, rvc_end }; +static const rvc_constraint rvcc_jalr[] = { rvc_rd_eq_ra, rvc_imm_eq_zero, rvc_end }; +static const rvc_constraint rvcc_nop[] = { rvc_rd_eq_x0, rvc_rs1_eq_x0, rvc_imm_eq_zero, rvc_end }; +static const rvc_constraint rvcc_mv[] = { rvc_imm_eq_zero, rvc_end }; +static const rvc_constraint rvcc_not[] = { rvc_imm_eq_n1, rvc_end }; +static const rvc_constraint rvcc_neg[] = { rvc_rs1_eq_x0, rvc_end }; +static const rvc_constraint rvcc_negw[] = { rvc_rs1_eq_x0, rvc_end }; +static const rvc_constraint rvcc_sext_w[] = { rvc_rs2_eq_x0, rvc_end }; +static const rvc_constraint rvcc_seqz[] = { rvc_imm_eq_p1, rvc_end }; +static const rvc_constraint rvcc_snez[] = { rvc_rs1_eq_x0, rvc_end }; +static const rvc_constraint rvcc_sltz[] = { rvc_rs2_eq_x0, rvc_end }; +static const rvc_constraint rvcc_sgtz[] = { rvc_rs1_eq_x0, rvc_end }; +static const rvc_constraint rvcc_fmv_s[] = { rvc_rs2_eq_rs1, rvc_end }; +static const rvc_constraint rvcc_fabs_s[] = { rvc_rs2_eq_rs1, rvc_end }; +static const rvc_constraint rvcc_fneg_s[] = { rvc_rs2_eq_rs1, rvc_end }; +static const rvc_constraint rvcc_fmv_d[] = { rvc_rs2_eq_rs1, rvc_end }; +static const rvc_constraint rvcc_fabs_d[] = { rvc_rs2_eq_rs1, rvc_end }; +static const rvc_constraint rvcc_fneg_d[] = { rvc_rs2_eq_rs1, rvc_end }; +static const rvc_constraint rvcc_fmv_q[] = { rvc_rs2_eq_rs1, rvc_end }; +static const rvc_constraint rvcc_fabs_q[] = { rvc_rs2_eq_rs1, rvc_end }; +static const rvc_constraint rvcc_fneg_q[] = { rvc_rs2_eq_rs1, rvc_end }; +static const rvc_constraint rvcc_beqz[] = { rvc_rs2_eq_x0, rvc_end }; +static const rvc_constraint rvcc_bnez[] = { rvc_rs2_eq_x0, rvc_end }; +static const rvc_constraint rvcc_blez[] = { rvc_rs1_eq_x0, rvc_end }; +static const rvc_constraint rvcc_bgez[] = { rvc_rs2_eq_x0, rvc_end }; +static const rvc_constraint rvcc_bltz[] = { rvc_rs2_eq_x0, rvc_end }; +static const rvc_constraint rvcc_bgtz[] = { rvc_rs1_eq_x0, rvc_end }; +static const rvc_constraint rvcc_ble[] = { rvc_end }; +static const rvc_constraint rvcc_bleu[] = { rvc_end }; +static const rvc_constraint rvcc_bgt[] = { rvc_end }; +static const rvc_constraint rvcc_bgtu[] = { rvc_end }; +static const rvc_constraint rvcc_j[] = { rvc_rd_eq_x0, rvc_end }; +static const rvc_constraint rvcc_ret[] = { rvc_rd_eq_x0, rvc_rs1_eq_ra, rvc_end }; +static const rvc_constraint rvcc_jr[] = { rvc_rd_eq_x0, rvc_imm_eq_zero, rvc_end }; +static const rvc_constraint rvcc_rdcycle[] = { rvc_rs1_eq_x0, rvc_csr_eq_0xc00, rvc_end }; +static const rvc_constraint rvcc_rdtime[] = { rvc_rs1_eq_x0, rvc_csr_eq_0xc01, rvc_end }; +static const rvc_constraint rvcc_rdinstret[] = { rvc_rs1_eq_x0, rvc_csr_eq_0xc02, rvc_end }; +static const rvc_constraint rvcc_rdcycleh[] = { rvc_rs1_eq_x0, rvc_csr_eq_0xc80, rvc_end }; +static const rvc_constraint rvcc_rdtimeh[] = { rvc_rs1_eq_x0, rvc_csr_eq_0xc81, rvc_end }; +static const rvc_constraint rvcc_rdinstreth[] = { rvc_rs1_eq_x0, rvc_csr_eq_0xc80, rvc_end }; +static const rvc_constraint rvcc_frcsr[] = { rvc_rs1_eq_x0, rvc_csr_eq_0x003, rvc_end }; +static const rvc_constraint rvcc_frrm[] = { rvc_rs1_eq_x0, rvc_csr_eq_0x002, rvc_end }; +static const rvc_constraint rvcc_frflags[] = { rvc_rs1_eq_x0, rvc_csr_eq_0x001, rvc_end }; +static const rvc_constraint rvcc_fscsr[] = { rvc_csr_eq_0x003, rvc_end }; +static const rvc_constraint rvcc_fsrm[] = { rvc_csr_eq_0x002, rvc_end }; +static const rvc_constraint rvcc_fsflags[] = { rvc_csr_eq_0x001, rvc_end }; +static const rvc_constraint rvcc_fsrmi[] = { rvc_csr_eq_0x002, rvc_end }; +static const rvc_constraint rvcc_fsflagsi[] = { rvc_csr_eq_0x001, rvc_end }; + +/* pseudo-instruction metadata */ + +static const rv_comp_data rvcp_jal[] = { + { rv_op_j, rvcc_j }, + { rv_op_jal, rvcc_jal }, + { rv_op_illegal, NULL } +}; + +static const rv_comp_data rvcp_jalr[] = { + { rv_op_ret, rvcc_ret }, + { rv_op_jr, rvcc_jr }, + { rv_op_jalr, rvcc_jalr }, + { rv_op_illegal, NULL } +}; + +static const rv_comp_data rvcp_beq[] = { + { rv_op_beqz, rvcc_beqz }, + { rv_op_illegal, NULL } +}; + +static const rv_comp_data rvcp_bne[] = { + { rv_op_bnez, rvcc_bnez }, + { rv_op_illegal, NULL } +}; + +static const rv_comp_data rvcp_blt[] = { + { rv_op_bltz, rvcc_bltz }, + { rv_op_bgtz, rvcc_bgtz }, + { rv_op_bgt, rvcc_bgt }, + { rv_op_illegal, NULL } +}; + +static const rv_comp_data rvcp_bge[] = { + { rv_op_blez, rvcc_blez }, + { rv_op_bgez, rvcc_bgez }, + { rv_op_ble, rvcc_ble }, + { rv_op_illegal, NULL } +}; + +static const rv_comp_data rvcp_bltu[] = { + { rv_op_bgtu, rvcc_bgtu }, + { rv_op_illegal, NULL } +}; + +static const rv_comp_data rvcp_bgeu[] = { + { rv_op_bleu, rvcc_bleu }, + { rv_op_illegal, NULL } +}; + +static const rv_comp_data rvcp_addi[] = { + { rv_op_nop, rvcc_nop }, + { rv_op_mv, rvcc_mv }, + { rv_op_illegal, NULL } +}; + +static const rv_comp_data rvcp_sltiu[] = { + { rv_op_seqz, rvcc_seqz }, + { rv_op_illegal, NULL } +}; + +static const rv_comp_data rvcp_xori[] = { + { rv_op_not, rvcc_not }, + { rv_op_illegal, NULL } +}; + +static const rv_comp_data rvcp_sub[] = { + { rv_op_neg, rvcc_neg }, + { rv_op_illegal, NULL } +}; + +static const rv_comp_data rvcp_slt[] = { + { rv_op_sltz, rvcc_sltz }, + { rv_op_sgtz, rvcc_sgtz }, + { rv_op_illegal, NULL } +}; + +static const rv_comp_data rvcp_sltu[] = { + { rv_op_snez, rvcc_snez }, + { rv_op_illegal, NULL } +}; + +static const rv_comp_data rvcp_addiw[] = { + { rv_op_sext_w, rvcc_sext_w }, + { rv_op_illegal, NULL } +}; + +static const rv_comp_data rvcp_subw[] = { + { rv_op_negw, rvcc_negw }, + { rv_op_illegal, NULL } +}; + +static const rv_comp_data rvcp_csrrw[] = { + { rv_op_fscsr, rvcc_fscsr }, + { rv_op_fsrm, rvcc_fsrm }, + { rv_op_fsflags, rvcc_fsflags }, + { rv_op_illegal, NULL } +}; + +static const rv_comp_data rvcp_csrrs[] = { + { rv_op_rdcycle, rvcc_rdcycle }, + { rv_op_rdtime, rvcc_rdtime }, + { rv_op_rdinstret, rvcc_rdinstret }, + { rv_op_rdcycleh, rvcc_rdcycleh }, + { rv_op_rdtimeh, rvcc_rdtimeh }, + { rv_op_rdinstreth, rvcc_rdinstreth }, + { rv_op_frcsr, rvcc_frcsr }, + { rv_op_frrm, rvcc_frrm }, + { rv_op_frflags, rvcc_frflags }, + { rv_op_illegal, NULL } +}; + +static const rv_comp_data rvcp_csrrwi[] = { + { rv_op_fsrmi, rvcc_fsrmi }, + { rv_op_fsflagsi, rvcc_fsflagsi }, + { rv_op_illegal, NULL } +}; + +static const rv_comp_data rvcp_fsgnj_s[] = { + { rv_op_fmv_s, rvcc_fmv_s }, + { rv_op_illegal, NULL } +}; + +static const rv_comp_data rvcp_fsgnjn_s[] = { + { rv_op_fneg_s, rvcc_fneg_s }, + { rv_op_illegal, NULL } +}; + +static const rv_comp_data rvcp_fsgnjx_s[] = { + { rv_op_fabs_s, rvcc_fabs_s }, + { rv_op_illegal, NULL } +}; + +static const rv_comp_data rvcp_fsgnj_d[] = { + { rv_op_fmv_d, rvcc_fmv_d }, + { rv_op_illegal, NULL } +}; + +static const rv_comp_data rvcp_fsgnjn_d[] = { + { rv_op_fneg_d, rvcc_fneg_d }, + { rv_op_illegal, NULL } +}; + +static const rv_comp_data rvcp_fsgnjx_d[] = { + { rv_op_fabs_d, rvcc_fabs_d }, + { rv_op_illegal, NULL } +}; + +static const rv_comp_data rvcp_fsgnj_q[] = { + { rv_op_fmv_q, rvcc_fmv_q }, + { rv_op_illegal, NULL } +}; + +static const rv_comp_data rvcp_fsgnjn_q[] = { + { rv_op_fneg_q, rvcc_fneg_q }, + { rv_op_illegal, NULL } +}; + +static const rv_comp_data rvcp_fsgnjx_q[] = { + { rv_op_fabs_q, rvcc_fabs_q }, + { rv_op_illegal, NULL } +}; + +/* instruction metadata */ + +const rv_opcode_data opcode_data[] = { + { "illegal", rv_codec_illegal, rv_fmt_none, NULL, 0, 0, 0 }, + { "lui", rv_codec_u, rv_fmt_rd_imm, NULL, 0, 0, 0 }, + { "auipc", rv_codec_u, rv_fmt_rd_offset, NULL, 0, 0, 0 }, + { "jal", rv_codec_uj, rv_fmt_rd_offset, rvcp_jal, 0, 0, 0 }, + { "jalr", rv_codec_i, rv_fmt_rd_rs1_offset, rvcp_jalr, 0, 0, 0 }, + { "beq", rv_codec_sb, rv_fmt_rs1_rs2_offset, rvcp_beq, 0, 0, 0 }, + { "bne", rv_codec_sb, rv_fmt_rs1_rs2_offset, rvcp_bne, 0, 0, 0 }, + { "blt", rv_codec_sb, rv_fmt_rs1_rs2_offset, rvcp_blt, 0, 0, 0 }, + { "bge", rv_codec_sb, rv_fmt_rs1_rs2_offset, rvcp_bge, 0, 0, 0 }, + { "bltu", rv_codec_sb, rv_fmt_rs1_rs2_offset, rvcp_bltu, 0, 0, 0 }, + { "bgeu", rv_codec_sb, rv_fmt_rs1_rs2_offset, rvcp_bgeu, 0, 0, 0 }, + { "lb", rv_codec_i, rv_fmt_rd_offset_rs1, NULL, 0, 0, 0 }, + { "lh", rv_codec_i, rv_fmt_rd_offset_rs1, NULL, 0, 0, 0 }, + { "lw", rv_codec_i, rv_fmt_rd_offset_rs1, NULL, 0, 0, 0 }, + { "lbu", rv_codec_i, rv_fmt_rd_offset_rs1, NULL, 0, 0, 0 }, + { "lhu", rv_codec_i, rv_fmt_rd_offset_rs1, NULL, 0, 0, 0 }, + { "sb", rv_codec_s, rv_fmt_rs2_offset_rs1, NULL, 0, 0, 0 }, + { "sh", rv_codec_s, rv_fmt_rs2_offset_rs1, NULL, 0, 0, 0 }, + { "sw", rv_codec_s, rv_fmt_rs2_offset_rs1, NULL, 0, 0, 0 }, + { "addi", rv_codec_i, rv_fmt_rd_rs1_imm, rvcp_addi, 0, 0, 0 }, + { "slti", rv_codec_i, rv_fmt_rd_rs1_imm, NULL, 0, 0, 0 }, + { "sltiu", rv_codec_i, rv_fmt_rd_rs1_imm, rvcp_sltiu, 0, 0, 0 }, + { "xori", rv_codec_i, rv_fmt_rd_rs1_imm, rvcp_xori, 0, 0, 0 }, + { "ori", rv_codec_i, rv_fmt_rd_rs1_imm, NULL, 0, 0, 0 }, + { "andi", rv_codec_i, rv_fmt_rd_rs1_imm, NULL, 0, 0, 0 }, + { "slli", rv_codec_i_sh7, rv_fmt_rd_rs1_imm, NULL, 0, 0, 0 }, + { "srli", rv_codec_i_sh7, rv_fmt_rd_rs1_imm, NULL, 0, 0, 0 }, + { "srai", rv_codec_i_sh7, rv_fmt_rd_rs1_imm, NULL, 0, 0, 0 }, + { "add", rv_codec_r, rv_fmt_rd_rs1_rs2, NULL, 0, 0, 0 }, + { "sub", rv_codec_r, rv_fmt_rd_rs1_rs2, rvcp_sub, 0, 0, 0 }, + { "sll", rv_codec_r, rv_fmt_rd_rs1_rs2, NULL, 0, 0, 0 }, + { "slt", rv_codec_r, rv_fmt_rd_rs1_rs2, rvcp_slt, 0, 0, 0 }, + { "sltu", rv_codec_r, rv_fmt_rd_rs1_rs2, rvcp_sltu, 0, 0, 0 }, + { "xor", rv_codec_r, rv_fmt_rd_rs1_rs2, NULL, 0, 0, 0 }, + { "srl", rv_codec_r, rv_fmt_rd_rs1_rs2, NULL, 0, 0, 0 }, + { "sra", rv_codec_r, rv_fmt_rd_rs1_rs2, NULL, 0, 0, 0 }, + { "or", rv_codec_r, rv_fmt_rd_rs1_rs2, NULL, 0, 0, 0 }, + { "and", rv_codec_r, rv_fmt_rd_rs1_rs2, NULL, 0, 0, 0 }, + { "fence", rv_codec_r_f, rv_fmt_pred_succ, NULL, 0, 0, 0 }, + { "fence.i", rv_codec_none, rv_fmt_none, NULL, 0, 0, 0 }, + { "lwu", rv_codec_i, rv_fmt_rd_offset_rs1, NULL, 0, 0, 0 }, + { "ld", rv_codec_i, rv_fmt_rd_offset_rs1, NULL, 0, 0, 0 }, + { "sd", rv_codec_s, rv_fmt_rs2_offset_rs1, NULL, 0, 0, 0 }, + { "addiw", rv_codec_i, rv_fmt_rd_rs1_imm, rvcp_addiw, 0, 0, 0 }, + { "slliw", rv_codec_i_sh5, rv_fmt_rd_rs1_imm, NULL, 0, 0, 0 }, + { "srliw", rv_codec_i_sh5, rv_fmt_rd_rs1_imm, NULL, 0, 0, 0 }, + { "sraiw", rv_codec_i_sh5, rv_fmt_rd_rs1_imm, NULL, 0, 0, 0 }, + { "addw", rv_codec_r, rv_fmt_rd_rs1_rs2, NULL, 0, 0, 0 }, + { "subw", rv_codec_r, rv_fmt_rd_rs1_rs2, rvcp_subw, 0, 0, 0 }, + { "sllw", rv_codec_r, rv_fmt_rd_rs1_rs2, NULL, 0, 0, 0 }, + { "srlw", rv_codec_r, rv_fmt_rd_rs1_rs2, NULL, 0, 0, 0 }, + { "sraw", rv_codec_r, rv_fmt_rd_rs1_rs2, NULL, 0, 0, 0 }, + { "ldu", rv_codec_i, rv_fmt_rd_offset_rs1, NULL, 0, 0, 0 }, + { "lq", rv_codec_i, rv_fmt_rd_offset_rs1, NULL, 0, 0, 0 }, + { "sq", rv_codec_s, rv_fmt_rs2_offset_rs1, NULL, 0, 0, 0 }, + { "addid", rv_codec_i, rv_fmt_rd_rs1_imm, NULL, 0, 0, 0 }, + { "sllid", rv_codec_i_sh6, rv_fmt_rd_rs1_imm, NULL, 0, 0, 0 }, + { "srlid", rv_codec_i_sh6, rv_fmt_rd_rs1_imm, NULL, 0, 0, 0 }, + { "sraid", rv_codec_i_sh6, rv_fmt_rd_rs1_imm, NULL, 0, 0, 0 }, + { "addd", rv_codec_r, rv_fmt_rd_rs1_rs2, NULL, 0, 0, 0 }, + { "subd", rv_codec_r, rv_fmt_rd_rs1_rs2, NULL, 0, 0, 0 }, + { "slld", rv_codec_r, rv_fmt_rd_rs1_rs2, NULL, 0, 0, 0 }, + { "srld", rv_codec_r, rv_fmt_rd_rs1_rs2, NULL, 0, 0, 0 }, + { "srad", rv_codec_r, rv_fmt_rd_rs1_rs2, NULL, 0, 0, 0 }, + { "mul", rv_codec_r, rv_fmt_rd_rs1_rs2, NULL, 0, 0, 0 }, + { "mulh", rv_codec_r, rv_fmt_rd_rs1_rs2, NULL, 0, 0, 0 }, + { "mulhsu", rv_codec_r, rv_fmt_rd_rs1_rs2, NULL, 0, 0, 0 }, + { "mulhu", rv_codec_r, rv_fmt_rd_rs1_rs2, NULL, 0, 0, 0 }, + { "div", rv_codec_r, rv_fmt_rd_rs1_rs2, NULL, 0, 0, 0 }, + { "divu", rv_codec_r, rv_fmt_rd_rs1_rs2, NULL, 0, 0, 0 }, + { "rem", rv_codec_r, rv_fmt_rd_rs1_rs2, NULL, 0, 0, 0 }, + { "remu", rv_codec_r, rv_fmt_rd_rs1_rs2, NULL, 0, 0, 0 }, + { "mulw", rv_codec_r, rv_fmt_rd_rs1_rs2, NULL, 0, 0, 0 }, + { "divw", rv_codec_r, rv_fmt_rd_rs1_rs2, NULL, 0, 0, 0 }, + { "divuw", rv_codec_r, rv_fmt_rd_rs1_rs2, NULL, 0, 0, 0 }, + { "remw", rv_codec_r, rv_fmt_rd_rs1_rs2, NULL, 0, 0, 0 }, + { "remuw", rv_codec_r, rv_fmt_rd_rs1_rs2, NULL, 0, 0, 0 }, + { "muld", rv_codec_r, rv_fmt_rd_rs1_rs2, NULL, 0, 0, 0 }, + { "divd", rv_codec_r, rv_fmt_rd_rs1_rs2, NULL, 0, 0, 0 }, + { "divud", rv_codec_r, rv_fmt_rd_rs1_rs2, NULL, 0, 0, 0 }, + { "remd", rv_codec_r, rv_fmt_rd_rs1_rs2, NULL, 0, 0, 0 }, + { "remud", rv_codec_r, rv_fmt_rd_rs1_rs2, NULL, 0, 0, 0 }, + { "lr.w", rv_codec_r_l, rv_fmt_aqrl_rd_rs1, NULL, 0, 0, 0 }, + { "sc.w", rv_codec_r_a, rv_fmt_aqrl_rd_rs2_rs1, NULL, 0, 0, 0 }, + { "amoswap.w", rv_codec_r_a, rv_fmt_aqrl_rd_rs2_rs1, NULL, 0, 0, 0 }, + { "amoadd.w", rv_codec_r_a, rv_fmt_aqrl_rd_rs2_rs1, NULL, 0, 0, 0 }, + { "amoxor.w", rv_codec_r_a, rv_fmt_aqrl_rd_rs2_rs1, NULL, 0, 0, 0 }, + { "amoor.w", rv_codec_r_a, rv_fmt_aqrl_rd_rs2_rs1, NULL, 0, 0, 0 }, + { "amoand.w", rv_codec_r_a, rv_fmt_aqrl_rd_rs2_rs1, NULL, 0, 0, 0 }, + { "amomin.w", rv_codec_r_a, rv_fmt_aqrl_rd_rs2_rs1, NULL, 0, 0, 0 }, + { "amomax.w", rv_codec_r_a, rv_fmt_aqrl_rd_rs2_rs1, NULL, 0, 0, 0 }, + { "amominu.w", rv_codec_r_a, rv_fmt_aqrl_rd_rs2_rs1, NULL, 0, 0, 0 }, + { "amomaxu.w", rv_codec_r_a, rv_fmt_aqrl_rd_rs2_rs1, NULL, 0, 0, 0 }, + { "lr.d", rv_codec_r_l, rv_fmt_aqrl_rd_rs1, NULL, 0, 0, 0 }, + { "sc.d", rv_codec_r_a, rv_fmt_aqrl_rd_rs2_rs1, NULL, 0, 0, 0 }, + { "amoswap.d", rv_codec_r_a, rv_fmt_aqrl_rd_rs2_rs1, NULL, 0, 0, 0 }, + { "amoadd.d", rv_codec_r_a, rv_fmt_aqrl_rd_rs2_rs1, NULL, 0, 0, 0 }, + { "amoxor.d", rv_codec_r_a, rv_fmt_aqrl_rd_rs2_rs1, NULL, 0, 0, 0 }, + { "amoor.d", rv_codec_r_a, rv_fmt_aqrl_rd_rs2_rs1, NULL, 0, 0, 0 }, + { "amoand.d", rv_codec_r_a, rv_fmt_aqrl_rd_rs2_rs1, NULL, 0, 0, 0 }, + { "amomin.d", rv_codec_r_a, rv_fmt_aqrl_rd_rs2_rs1, NULL, 0, 0, 0 }, + { "amomax.d", rv_codec_r_a, rv_fmt_aqrl_rd_rs2_rs1, NULL, 0, 0, 0 }, + { "amominu.d", rv_codec_r_a, rv_fmt_aqrl_rd_rs2_rs1, NULL, 0, 0, 0 }, + { "amomaxu.d", rv_codec_r_a, rv_fmt_aqrl_rd_rs2_rs1, NULL, 0, 0, 0 }, + { "lr.q", rv_codec_r_l, rv_fmt_aqrl_rd_rs1, NULL, 0, 0, 0 }, + { "sc.q", rv_codec_r_a, rv_fmt_aqrl_rd_rs2_rs1, NULL, 0, 0, 0 }, + { "amoswap.q", rv_codec_r_a, rv_fmt_aqrl_rd_rs2_rs1, NULL, 0, 0, 0 }, + { "amoadd.q", rv_codec_r_a, rv_fmt_aqrl_rd_rs2_rs1, NULL, 0, 0, 0 }, + { "amoxor.q", rv_codec_r_a, rv_fmt_aqrl_rd_rs2_rs1, NULL, 0, 0, 0 }, + { "amoor.q", rv_codec_r_a, rv_fmt_aqrl_rd_rs2_rs1, NULL, 0, 0, 0 }, + { "amoand.q", rv_codec_r_a, rv_fmt_aqrl_rd_rs2_rs1, NULL, 0, 0, 0 }, + { "amomin.q", rv_codec_r_a, rv_fmt_aqrl_rd_rs2_rs1, NULL, 0, 0, 0 }, + { "amomax.q", rv_codec_r_a, rv_fmt_aqrl_rd_rs2_rs1, NULL, 0, 0, 0 }, + { "amominu.q", rv_codec_r_a, rv_fmt_aqrl_rd_rs2_rs1, NULL, 0, 0, 0 }, + { "amomaxu.q", rv_codec_r_a, rv_fmt_aqrl_rd_rs2_rs1, NULL, 0, 0, 0 }, + { "ecall", rv_codec_none, rv_fmt_none, NULL, 0, 0, 0 }, + { "ebreak", rv_codec_none, rv_fmt_none, NULL, 0, 0, 0 }, + { "uret", rv_codec_none, rv_fmt_none, NULL, 0, 0, 0 }, + { "sret", rv_codec_none, rv_fmt_none, NULL, 0, 0, 0 }, + { "hret", rv_codec_none, rv_fmt_none, NULL, 0, 0, 0 }, + { "mret", rv_codec_none, rv_fmt_none, NULL, 0, 0, 0 }, + { "dret", rv_codec_none, rv_fmt_none, NULL, 0, 0, 0 }, + { "sfence.vm", rv_codec_r, rv_fmt_rs1, NULL, 0, 0, 0 }, + { "sfence.vma", rv_codec_r, rv_fmt_rs1_rs2, NULL, 0, 0, 0 }, + { "wfi", rv_codec_none, rv_fmt_none, NULL, 0, 0, 0 }, + { "csrrw", rv_codec_i_csr, rv_fmt_rd_csr_rs1, rvcp_csrrw, 0, 0, 0 }, + { "csrrs", rv_codec_i_csr, rv_fmt_rd_csr_rs1, rvcp_csrrs, 0, 0, 0 }, + { "csrrc", rv_codec_i_csr, rv_fmt_rd_csr_rs1, NULL, 0, 0, 0 }, + { "csrrwi", rv_codec_i_csr, rv_fmt_rd_csr_zimm, rvcp_csrrwi, 0, 0, 0 }, + { "csrrsi", rv_codec_i_csr, rv_fmt_rd_csr_zimm, NULL, 0, 0, 0 }, + { "csrrci", rv_codec_i_csr, rv_fmt_rd_csr_zimm, NULL, 0, 0, 0 }, + { "flw", rv_codec_i, rv_fmt_frd_offset_rs1, NULL, 0, 0, 0 }, + { "fsw", rv_codec_s, rv_fmt_frs2_offset_rs1, NULL, 0, 0, 0 }, + { "fmadd.s", rv_codec_r4_m, rv_fmt_rm_frd_frs1_frs2_frs3, NULL, 0, 0, 0 }, + { "fmsub.s", rv_codec_r4_m, rv_fmt_rm_frd_frs1_frs2_frs3, NULL, 0, 0, 0 }, + { "fnmsub.s", rv_codec_r4_m, rv_fmt_rm_frd_frs1_frs2_frs3, NULL, 0, 0, 0 }, + { "fnmadd.s", rv_codec_r4_m, rv_fmt_rm_frd_frs1_frs2_frs3, NULL, 0, 0, 0 }, + { "fadd.s", rv_codec_r_m, rv_fmt_rm_frd_frs1_frs2, NULL, 0, 0, 0 }, + { "fsub.s", rv_codec_r_m, rv_fmt_rm_frd_frs1_frs2, NULL, 0, 0, 0 }, + { "fmul.s", rv_codec_r_m, rv_fmt_rm_frd_frs1_frs2, NULL, 0, 0, 0 }, + { "fdiv.s", rv_codec_r_m, rv_fmt_rm_frd_frs1_frs2, NULL, 0, 0, 0 }, + { "fsgnj.s", rv_codec_r, rv_fmt_frd_frs1_frs2, rvcp_fsgnj_s, 0, 0, 0 }, + { "fsgnjn.s", rv_codec_r, rv_fmt_frd_frs1_frs2, rvcp_fsgnjn_s, 0, 0, 0 }, + { "fsgnjx.s", rv_codec_r, rv_fmt_frd_frs1_frs2, rvcp_fsgnjx_s, 0, 0, 0 }, + { "fmin.s", rv_codec_r, rv_fmt_frd_frs1_frs2, NULL, 0, 0, 0 }, + { "fmax.s", rv_codec_r, rv_fmt_frd_frs1_frs2, NULL, 0, 0, 0 }, + { "fsqrt.s", rv_codec_r_m, rv_fmt_rm_frd_frs1, NULL, 0, 0, 0 }, + { "fle.s", rv_codec_r, rv_fmt_rd_frs1_frs2, NULL, 0, 0, 0 }, + { "flt.s", rv_codec_r, rv_fmt_rd_frs1_frs2, NULL, 0, 0, 0 }, + { "feq.s", rv_codec_r, rv_fmt_rd_frs1_frs2, NULL, 0, 0, 0 }, + { "fcvt.w.s", rv_codec_r_m, rv_fmt_rm_rd_frs1, NULL, 0, 0, 0 }, + { "fcvt.wu.s", rv_codec_r_m, rv_fmt_rm_rd_frs1, NULL, 0, 0, 0 }, + { "fcvt.s.w", rv_codec_r_m, rv_fmt_rm_frd_rs1, NULL, 0, 0, 0 }, + { "fcvt.s.wu", rv_codec_r_m, rv_fmt_rm_frd_rs1, NULL, 0, 0, 0 }, + { "fmv.x.s", rv_codec_r, rv_fmt_rd_frs1, NULL, 0, 0, 0 }, + { "fclass.s", rv_codec_r, rv_fmt_rd_frs1, NULL, 0, 0, 0 }, + { "fmv.s.x", rv_codec_r, rv_fmt_frd_rs1, NULL, 0, 0, 0 }, + { "fcvt.l.s", rv_codec_r_m, rv_fmt_rm_rd_frs1, NULL, 0, 0, 0 }, + { "fcvt.lu.s", rv_codec_r_m, rv_fmt_rm_rd_frs1, NULL, 0, 0, 0 }, + { "fcvt.s.l", rv_codec_r_m, rv_fmt_rm_frd_rs1, NULL, 0, 0, 0 }, + { "fcvt.s.lu", rv_codec_r_m, rv_fmt_rm_frd_rs1, NULL, 0, 0, 0 }, + { "fld", rv_codec_i, rv_fmt_frd_offset_rs1, NULL, 0, 0, 0 }, + { "fsd", rv_codec_s, rv_fmt_frs2_offset_rs1, NULL, 0, 0, 0 }, + { "fmadd.d", rv_codec_r4_m, rv_fmt_rm_frd_frs1_frs2_frs3, NULL, 0, 0, 0 }, + { "fmsub.d", rv_codec_r4_m, rv_fmt_rm_frd_frs1_frs2_frs3, NULL, 0, 0, 0 }, + { "fnmsub.d", rv_codec_r4_m, rv_fmt_rm_frd_frs1_frs2_frs3, NULL, 0, 0, 0 }, + { "fnmadd.d", rv_codec_r4_m, rv_fmt_rm_frd_frs1_frs2_frs3, NULL, 0, 0, 0 }, + { "fadd.d", rv_codec_r_m, rv_fmt_rm_frd_frs1_frs2, NULL, 0, 0, 0 }, + { "fsub.d", rv_codec_r_m, rv_fmt_rm_frd_frs1_frs2, NULL, 0, 0, 0 }, + { "fmul.d", rv_codec_r_m, rv_fmt_rm_frd_frs1_frs2, NULL, 0, 0, 0 }, + { "fdiv.d", rv_codec_r_m, rv_fmt_rm_frd_frs1_frs2, NULL, 0, 0, 0 }, + { "fsgnj.d", rv_codec_r, rv_fmt_frd_frs1_frs2, rvcp_fsgnj_d, 0, 0, 0 }, + { "fsgnjn.d", rv_codec_r, rv_fmt_frd_frs1_frs2, rvcp_fsgnjn_d, 0, 0, 0 }, + { "fsgnjx.d", rv_codec_r, rv_fmt_frd_frs1_frs2, rvcp_fsgnjx_d, 0, 0, 0 }, + { "fmin.d", rv_codec_r, rv_fmt_frd_frs1_frs2, NULL, 0, 0, 0 }, + { "fmax.d", rv_codec_r, rv_fmt_frd_frs1_frs2, NULL, 0, 0, 0 }, + { "fcvt.s.d", rv_codec_r_m, rv_fmt_rm_frd_frs1, NULL, 0, 0, 0 }, + { "fcvt.d.s", rv_codec_r_m, rv_fmt_rm_frd_frs1, NULL, 0, 0, 0 }, + { "fsqrt.d", rv_codec_r_m, rv_fmt_rm_frd_frs1, NULL, 0, 0, 0 }, + { "fle.d", rv_codec_r, rv_fmt_rd_frs1_frs2, NULL, 0, 0, 0 }, + { "flt.d", rv_codec_r, rv_fmt_rd_frs1_frs2, NULL, 0, 0, 0 }, + { "feq.d", rv_codec_r, rv_fmt_rd_frs1_frs2, NULL, 0, 0, 0 }, + { "fcvt.w.d", rv_codec_r_m, rv_fmt_rm_rd_frs1, NULL, 0, 0, 0 }, + { "fcvt.wu.d", rv_codec_r_m, rv_fmt_rm_rd_frs1, NULL, 0, 0, 0 }, + { "fcvt.d.w", rv_codec_r_m, rv_fmt_rm_frd_rs1, NULL, 0, 0, 0 }, + { "fcvt.d.wu", rv_codec_r_m, rv_fmt_rm_frd_rs1, NULL, 0, 0, 0 }, + { "fclass.d", rv_codec_r, rv_fmt_rd_frs1, NULL, 0, 0, 0 }, + { "fcvt.l.d", rv_codec_r_m, rv_fmt_rm_rd_frs1, NULL, 0, 0, 0 }, + { "fcvt.lu.d", rv_codec_r_m, rv_fmt_rm_rd_frs1, NULL, 0, 0, 0 }, + { "fmv.x.d", rv_codec_r, rv_fmt_rd_frs1, NULL, 0, 0, 0 }, + { "fcvt.d.l", rv_codec_r_m, rv_fmt_rm_frd_rs1, NULL, 0, 0, 0 }, + { "fcvt.d.lu", rv_codec_r_m, rv_fmt_rm_frd_rs1, NULL, 0, 0, 0 }, + { "fmv.d.x", rv_codec_r, rv_fmt_frd_rs1, NULL, 0, 0, 0 }, + { "flq", rv_codec_i, rv_fmt_frd_offset_rs1, NULL, 0, 0, 0 }, + { "fsq", rv_codec_s, rv_fmt_frs2_offset_rs1, NULL, 0, 0, 0 }, + { "fmadd.q", rv_codec_r4_m, rv_fmt_rm_frd_frs1_frs2_frs3, NULL, 0, 0, 0 }, + { "fmsub.q", rv_codec_r4_m, rv_fmt_rm_frd_frs1_frs2_frs3, NULL, 0, 0, 0 }, + { "fnmsub.q", rv_codec_r4_m, rv_fmt_rm_frd_frs1_frs2_frs3, NULL, 0, 0, 0 }, + { "fnmadd.q", rv_codec_r4_m, rv_fmt_rm_frd_frs1_frs2_frs3, NULL, 0, 0, 0 }, + { "fadd.q", rv_codec_r_m, rv_fmt_rm_frd_frs1_frs2, NULL, 0, 0, 0 }, + { "fsub.q", rv_codec_r_m, rv_fmt_rm_frd_frs1_frs2, NULL, 0, 0, 0 }, + { "fmul.q", rv_codec_r_m, rv_fmt_rm_frd_frs1_frs2, NULL, 0, 0, 0 }, + { "fdiv.q", rv_codec_r_m, rv_fmt_rm_frd_frs1_frs2, NULL, 0, 0, 0 }, + { "fsgnj.q", rv_codec_r, rv_fmt_frd_frs1_frs2, rvcp_fsgnj_q, 0, 0, 0 }, + { "fsgnjn.q", rv_codec_r, rv_fmt_frd_frs1_frs2, rvcp_fsgnjn_q, 0, 0, 0 }, + { "fsgnjx.q", rv_codec_r, rv_fmt_frd_frs1_frs2, rvcp_fsgnjx_q, 0, 0, 0 }, + { "fmin.q", rv_codec_r, rv_fmt_frd_frs1_frs2, NULL, 0, 0, 0 }, + { "fmax.q", rv_codec_r, rv_fmt_frd_frs1_frs2, NULL, 0, 0, 0 }, + { "fcvt.s.q", rv_codec_r_m, rv_fmt_rm_frd_frs1, NULL, 0, 0, 0 }, + { "fcvt.q.s", rv_codec_r_m, rv_fmt_rm_frd_frs1, NULL, 0, 0, 0 }, + { "fcvt.d.q", rv_codec_r_m, rv_fmt_rm_frd_frs1, NULL, 0, 0, 0 }, + { "fcvt.q.d", rv_codec_r_m, rv_fmt_rm_frd_frs1, NULL, 0, 0, 0 }, + { "fsqrt.q", rv_codec_r_m, rv_fmt_rm_frd_frs1, NULL, 0, 0, 0 }, + { "fle.q", rv_codec_r, rv_fmt_rd_frs1_frs2, NULL, 0, 0, 0 }, + { "flt.q", rv_codec_r, rv_fmt_rd_frs1_frs2, NULL, 0, 0, 0 }, + { "feq.q", rv_codec_r, rv_fmt_rd_frs1_frs2, NULL, 0, 0, 0 }, + { "fcvt.w.q", rv_codec_r_m, rv_fmt_rm_rd_frs1, NULL, 0, 0, 0 }, + { "fcvt.wu.q", rv_codec_r_m, rv_fmt_rm_rd_frs1, NULL, 0, 0, 0 }, + { "fcvt.q.w", rv_codec_r_m, rv_fmt_rm_frd_rs1, NULL, 0, 0, 0 }, + { "fcvt.q.wu", rv_codec_r_m, rv_fmt_rm_frd_rs1, NULL, 0, 0, 0 }, + { "fclass.q", rv_codec_r, rv_fmt_rd_frs1, NULL, 0, 0, 0 }, + { "fcvt.l.q", rv_codec_r_m, rv_fmt_rm_rd_frs1, NULL, 0, 0, 0 }, + { "fcvt.lu.q", rv_codec_r_m, rv_fmt_rm_rd_frs1, NULL, 0, 0, 0 }, + { "fcvt.q.l", rv_codec_r_m, rv_fmt_rm_frd_rs1, NULL, 0, 0, 0 }, + { "fcvt.q.lu", rv_codec_r_m, rv_fmt_rm_frd_rs1, NULL, 0, 0, 0 }, + { "fmv.x.q", rv_codec_r, rv_fmt_rd_frs1, NULL, 0, 0, 0 }, + { "fmv.q.x", rv_codec_r, rv_fmt_frd_rs1, NULL, 0, 0, 0 }, + { "c.addi4spn", rv_codec_ciw_4spn, rv_fmt_rd_rs1_imm, NULL, rv_op_addi, rv_op_addi, rv_op_addi }, + { "c.fld", rv_codec_cl_ld, rv_fmt_frd_offset_rs1, NULL, rv_op_fld, rv_op_fld, 0 }, + { "c.lw", rv_codec_cl_lw, rv_fmt_rd_offset_rs1, NULL, rv_op_lw, rv_op_lw, rv_op_lw }, + { "c.flw", rv_codec_cl_lw, rv_fmt_frd_offset_rs1, NULL, rv_op_flw, 0, 0 }, + { "c.fsd", rv_codec_cs_sd, rv_fmt_frs2_offset_rs1, NULL, rv_op_fsd, rv_op_fsd, 0 }, + { "c.sw", rv_codec_cs_sw, rv_fmt_rs2_offset_rs1, NULL, rv_op_sw, rv_op_sw, rv_op_sw }, + { "c.fsw", rv_codec_cs_sw, rv_fmt_frs2_offset_rs1, NULL, rv_op_fsw, 0, 0 }, + { "c.nop", rv_codec_ci_none, rv_fmt_none, NULL, rv_op_addi, rv_op_addi, rv_op_addi }, + { "c.addi", rv_codec_ci, rv_fmt_rd_rs1_imm, NULL, rv_op_addi, rv_op_addi, rv_op_addi }, + { "c.jal", rv_codec_cj_jal, rv_fmt_rd_offset, NULL, rv_op_jal, 0, 0 }, + { "c.li", rv_codec_ci_li, rv_fmt_rd_rs1_imm, NULL, rv_op_addi, rv_op_addi, rv_op_addi }, + { "c.addi16sp", rv_codec_ci_16sp, rv_fmt_rd_rs1_imm, NULL, rv_op_addi, rv_op_addi, rv_op_addi }, + { "c.lui", rv_codec_ci_lui, rv_fmt_rd_imm, NULL, rv_op_lui, rv_op_lui, rv_op_lui }, + { "c.srli", rv_codec_cb_sh6, rv_fmt_rd_rs1_imm, NULL, rv_op_srli, rv_op_srli, rv_op_srli }, + { "c.srai", rv_codec_cb_sh6, rv_fmt_rd_rs1_imm, NULL, rv_op_srai, rv_op_srai, rv_op_srai }, + { "c.andi", rv_codec_cb_imm, rv_fmt_rd_rs1_imm, NULL, rv_op_andi, rv_op_andi, rv_op_andi }, + { "c.sub", rv_codec_cs, rv_fmt_rd_rs1_rs2, NULL, rv_op_sub, rv_op_sub, rv_op_sub }, + { "c.xor", rv_codec_cs, rv_fmt_rd_rs1_rs2, NULL, rv_op_xor, rv_op_xor, rv_op_xor }, + { "c.or", rv_codec_cs, rv_fmt_rd_rs1_rs2, NULL, rv_op_or, rv_op_or, rv_op_or }, + { "c.and", rv_codec_cs, rv_fmt_rd_rs1_rs2, NULL, rv_op_and, rv_op_and, rv_op_and }, + { "c.subw", rv_codec_cs, rv_fmt_rd_rs1_rs2, NULL, rv_op_subw, rv_op_subw, rv_op_subw }, + { "c.addw", rv_codec_cs, rv_fmt_rd_rs1_rs2, NULL, rv_op_addw, rv_op_addw, rv_op_addw }, + { "c.j", rv_codec_cj, rv_fmt_rd_offset, NULL, rv_op_jal, rv_op_jal, rv_op_jal }, + { "c.beqz", rv_codec_cb, rv_fmt_rs1_rs2_offset, NULL, rv_op_beq, rv_op_beq, rv_op_beq }, + { "c.bnez", rv_codec_cb, rv_fmt_rs1_rs2_offset, NULL, rv_op_bne, rv_op_bne, rv_op_bne }, + { "c.slli", rv_codec_ci_sh6, rv_fmt_rd_rs1_imm, NULL, rv_op_slli, rv_op_slli, rv_op_slli }, + { "c.fldsp", rv_codec_ci_ldsp, rv_fmt_frd_offset_rs1, NULL, rv_op_fld, rv_op_fld, rv_op_fld }, + { "c.lwsp", rv_codec_ci_lwsp, rv_fmt_rd_offset_rs1, NULL, rv_op_lw, rv_op_lw, rv_op_lw }, + { "c.flwsp", rv_codec_ci_lwsp, rv_fmt_frd_offset_rs1, NULL, rv_op_flw, 0, 0 }, + { "c.jr", rv_codec_cr_jr, rv_fmt_rd_rs1_offset, NULL, rv_op_jalr, rv_op_jalr, rv_op_jalr }, + { "c.mv", rv_codec_cr_mv, rv_fmt_rd_rs1_rs2, NULL, rv_op_addi, rv_op_addi, rv_op_addi }, + { "c.ebreak", rv_codec_ci_none, rv_fmt_none, NULL, rv_op_ebreak, rv_op_ebreak, rv_op_ebreak }, + { "c.jalr", rv_codec_cr_jalr, rv_fmt_rd_rs1_offset, NULL, rv_op_jalr, rv_op_jalr, rv_op_jalr }, + { "c.add", rv_codec_cr, rv_fmt_rd_rs1_rs2, NULL, rv_op_add, rv_op_add, rv_op_add }, + { "c.fsdsp", rv_codec_css_sdsp, rv_fmt_frs2_offset_rs1, NULL, rv_op_fsd, rv_op_fsd, rv_op_fsd }, + { "c.swsp", rv_codec_css_swsp, rv_fmt_rs2_offset_rs1, NULL, rv_op_sw, rv_op_sw, rv_op_sw }, + { "c.fswsp", rv_codec_css_swsp, rv_fmt_frs2_offset_rs1, NULL, rv_op_fsw, 0, 0 }, + { "c.ld", rv_codec_cl_ld, rv_fmt_rd_offset_rs1, NULL, 0, rv_op_ld, rv_op_ld }, + { "c.sd", rv_codec_cs_sd, rv_fmt_rs2_offset_rs1, NULL, 0, rv_op_sd, rv_op_sd }, + { "c.addiw", rv_codec_ci, rv_fmt_rd_rs1_imm, NULL, 0, rv_op_addiw, rv_op_addiw }, + { "c.ldsp", rv_codec_ci_ldsp, rv_fmt_rd_offset_rs1, NULL, 0, rv_op_ld, rv_op_ld }, + { "c.sdsp", rv_codec_css_sdsp, rv_fmt_rs2_offset_rs1, NULL, 0, rv_op_sd, rv_op_sd }, + { "c.lq", rv_codec_cl_lq, rv_fmt_rd_offset_rs1, NULL, 0, 0, rv_op_lq }, + { "c.sq", rv_codec_cs_sq, rv_fmt_rs2_offset_rs1, NULL, 0, 0, rv_op_sq }, + { "c.lqsp", rv_codec_ci_lqsp, rv_fmt_rd_offset_rs1, NULL, 0, 0, rv_op_lq }, + { "c.sqsp", rv_codec_css_sqsp, rv_fmt_rs2_offset_rs1, NULL, 0, 0, rv_op_sq }, + { "nop", rv_codec_i, rv_fmt_none, NULL, 0, 0, 0 }, + { "mv", rv_codec_i, rv_fmt_rd_rs1, NULL, 0, 0, 0 }, + { "not", rv_codec_i, rv_fmt_rd_rs1, NULL, 0, 0, 0 }, + { "neg", rv_codec_r, rv_fmt_rd_rs2, NULL, 0, 0, 0 }, + { "negw", rv_codec_r, rv_fmt_rd_rs2, NULL, 0, 0, 0 }, + { "sext.w", rv_codec_i, rv_fmt_rd_rs1, NULL, 0, 0, 0 }, + { "seqz", rv_codec_i, rv_fmt_rd_rs1, NULL, 0, 0, 0 }, + { "snez", rv_codec_r, rv_fmt_rd_rs2, NULL, 0, 0, 0 }, + { "sltz", rv_codec_r, rv_fmt_rd_rs1, NULL, 0, 0, 0 }, + { "sgtz", rv_codec_r, rv_fmt_rd_rs2, NULL, 0, 0, 0 }, + { "fmv.s", rv_codec_r, rv_fmt_rd_rs1, NULL, 0, 0, 0 }, + { "fabs.s", rv_codec_r, rv_fmt_rd_rs1, NULL, 0, 0, 0 }, + { "fneg.s", rv_codec_r, rv_fmt_rd_rs1, NULL, 0, 0, 0 }, + { "fmv.d", rv_codec_r, rv_fmt_rd_rs1, NULL, 0, 0, 0 }, + { "fabs.d", rv_codec_r, rv_fmt_rd_rs1, NULL, 0, 0, 0 }, + { "fneg.d", rv_codec_r, rv_fmt_rd_rs1, NULL, 0, 0, 0 }, + { "fmv.q", rv_codec_r, rv_fmt_rd_rs1, NULL, 0, 0, 0 }, + { "fabs.q", rv_codec_r, rv_fmt_rd_rs1, NULL, 0, 0, 0 }, + { "fneg.q", rv_codec_r, rv_fmt_rd_rs1, NULL, 0, 0, 0 }, + { "beqz", rv_codec_sb, rv_fmt_rs1_offset, NULL, 0, 0, 0 }, + { "bnez", rv_codec_sb, rv_fmt_rs1_offset, NULL, 0, 0, 0 }, + { "blez", rv_codec_sb, rv_fmt_rs2_offset, NULL, 0, 0, 0 }, + { "bgez", rv_codec_sb, rv_fmt_rs1_offset, NULL, 0, 0, 0 }, + { "bltz", rv_codec_sb, rv_fmt_rs1_offset, NULL, 0, 0, 0 }, + { "bgtz", rv_codec_sb, rv_fmt_rs2_offset, NULL, 0, 0, 0 }, + { "ble", rv_codec_sb, rv_fmt_rs2_rs1_offset, NULL, 0, 0, 0 }, + { "bleu", rv_codec_sb, rv_fmt_rs2_rs1_offset, NULL, 0, 0, 0 }, + { "bgt", rv_codec_sb, rv_fmt_rs2_rs1_offset, NULL, 0, 0, 0 }, + { "bgtu", rv_codec_sb, rv_fmt_rs2_rs1_offset, NULL, 0, 0, 0 }, + { "j", rv_codec_uj, rv_fmt_offset, NULL, 0, 0, 0 }, + { "ret", rv_codec_i, rv_fmt_none, NULL, 0, 0, 0 }, + { "jr", rv_codec_i, rv_fmt_rs1, NULL, 0, 0, 0 }, + { "rdcycle", rv_codec_i_csr, rv_fmt_rd, NULL, 0, 0, 0 }, + { "rdtime", rv_codec_i_csr, rv_fmt_rd, NULL, 0, 0, 0 }, + { "rdinstret", rv_codec_i_csr, rv_fmt_rd, NULL, 0, 0, 0 }, + { "rdcycleh", rv_codec_i_csr, rv_fmt_rd, NULL, 0, 0, 0 }, + { "rdtimeh", rv_codec_i_csr, rv_fmt_rd, NULL, 0, 0, 0 }, + { "rdinstreth", rv_codec_i_csr, rv_fmt_rd, NULL, 0, 0, 0 }, + { "frcsr", rv_codec_i_csr, rv_fmt_rd, NULL, 0, 0, 0 }, + { "frrm", rv_codec_i_csr, rv_fmt_rd, NULL, 0, 0, 0 }, + { "frflags", rv_codec_i_csr, rv_fmt_rd, NULL, 0, 0, 0 }, + { "fscsr", rv_codec_i_csr, rv_fmt_rd_rs1, NULL, 0, 0, 0 }, + { "fsrm", rv_codec_i_csr, rv_fmt_rd_rs1, NULL, 0, 0, 0 }, + { "fsflags", rv_codec_i_csr, rv_fmt_rd_rs1, NULL, 0, 0, 0 }, + { "fsrmi", rv_codec_i_csr, rv_fmt_rd_zimm, NULL, 0, 0, 0 }, + { "fsflagsi", rv_codec_i_csr, rv_fmt_rd_zimm, NULL, 0, 0, 0 }, +}; + +/* CSR names */ + +static const char *csr_name(int csrno) +{ + switch (csrno) { + case 0x0000: return "ustatus"; + case 0x0001: return "fflags"; + case 0x0002: return "frm"; + case 0x0003: return "fcsr"; + case 0x0004: return "uie"; + case 0x0005: return "utvec"; + case 0x0040: return "uscratch"; + case 0x0041: return "uepc"; + case 0x0042: return "ucause"; + case 0x0043: return "utval"; + case 0x0044: return "uip"; + case 0x0100: return "sstatus"; + case 0x0102: return "sedeleg"; + case 0x0103: return "sideleg"; + case 0x0104: return "sie"; + case 0x0105: return "stvec"; + case 0x0106: return "scounteren"; + case 0x0140: return "sscratch"; + case 0x0141: return "sepc"; + case 0x0142: return "scause"; + case 0x0143: return "stval"; + case 0x0144: return "sip"; + case 0x0180: return "satp"; + case 0x0200: return "hstatus"; + case 0x0202: return "hedeleg"; + case 0x0203: return "hideleg"; + case 0x0204: return "hie"; + case 0x0205: return "htvec"; + case 0x0240: return "hscratch"; + case 0x0241: return "hepc"; + case 0x0242: return "hcause"; + case 0x0243: return "hbadaddr"; + case 0x0244: return "hip"; + case 0x0300: return "mstatus"; + case 0x0301: return "misa"; + case 0x0302: return "medeleg"; + case 0x0303: return "mideleg"; + case 0x0304: return "mie"; + case 0x0305: return "mtvec"; + case 0x0306: return "mcounteren"; + case 0x0320: return "mucounteren"; + case 0x0321: return "mscounteren"; + case 0x0322: return "mhcounteren"; + case 0x0323: return "mhpmevent3"; + case 0x0324: return "mhpmevent4"; + case 0x0325: return "mhpmevent5"; + case 0x0326: return "mhpmevent6"; + case 0x0327: return "mhpmevent7"; + case 0x0328: return "mhpmevent8"; + case 0x0329: return "mhpmevent9"; + case 0x032a: return "mhpmevent10"; + case 0x032b: return "mhpmevent11"; + case 0x032c: return "mhpmevent12"; + case 0x032d: return "mhpmevent13"; + case 0x032e: return "mhpmevent14"; + case 0x032f: return "mhpmevent15"; + case 0x0330: return "mhpmevent16"; + case 0x0331: return "mhpmevent17"; + case 0x0332: return "mhpmevent18"; + case 0x0333: return "mhpmevent19"; + case 0x0334: return "mhpmevent20"; + case 0x0335: return "mhpmevent21"; + case 0x0336: return "mhpmevent22"; + case 0x0337: return "mhpmevent23"; + case 0x0338: return "mhpmevent24"; + case 0x0339: return "mhpmevent25"; + case 0x033a: return "mhpmevent26"; + case 0x033b: return "mhpmevent27"; + case 0x033c: return "mhpmevent28"; + case 0x033d: return "mhpmevent29"; + case 0x033e: return "mhpmevent30"; + case 0x033f: return "mhpmevent31"; + case 0x0340: return "mscratch"; + case 0x0341: return "mepc"; + case 0x0342: return "mcause"; + case 0x0343: return "mtval"; + case 0x0344: return "mip"; + case 0x0380: return "mbase"; + case 0x0381: return "mbound"; + case 0x0382: return "mibase"; + case 0x0383: return "mibound"; + case 0x0384: return "mdbase"; + case 0x0385: return "mdbound"; + case 0x03a0: return "pmpcfg3"; + case 0x03b0: return "pmpaddr0"; + case 0x03b1: return "pmpaddr1"; + case 0x03b2: return "pmpaddr2"; + case 0x03b3: return "pmpaddr3"; + case 0x03b4: return "pmpaddr4"; + case 0x03b5: return "pmpaddr5"; + case 0x03b6: return "pmpaddr6"; + case 0x03b7: return "pmpaddr7"; + case 0x03b8: return "pmpaddr8"; + case 0x03b9: return "pmpaddr9"; + case 0x03ba: return "pmpaddr10"; + case 0x03bb: return "pmpaddr11"; + case 0x03bc: return "pmpaddr12"; + case 0x03bd: return "pmpaddr14"; + case 0x03be: return "pmpaddr13"; + case 0x03bf: return "pmpaddr15"; + case 0x0780: return "mtohost"; + case 0x0781: return "mfromhost"; + case 0x0782: return "mreset"; + case 0x0783: return "mipi"; + case 0x0784: return "miobase"; + case 0x07a0: return "tselect"; + case 0x07a1: return "tdata1"; + case 0x07a2: return "tdata2"; + case 0x07a3: return "tdata3"; + case 0x07b0: return "dcsr"; + case 0x07b1: return "dpc"; + case 0x07b2: return "dscratch"; + case 0x0b00: return "mcycle"; + case 0x0b01: return "mtime"; + case 0x0b02: return "minstret"; + case 0x0b03: return "mhpmcounter3"; + case 0x0b04: return "mhpmcounter4"; + case 0x0b05: return "mhpmcounter5"; + case 0x0b06: return "mhpmcounter6"; + case 0x0b07: return "mhpmcounter7"; + case 0x0b08: return "mhpmcounter8"; + case 0x0b09: return "mhpmcounter9"; + case 0x0b0a: return "mhpmcounter10"; + case 0x0b0b: return "mhpmcounter11"; + case 0x0b0c: return "mhpmcounter12"; + case 0x0b0d: return "mhpmcounter13"; + case 0x0b0e: return "mhpmcounter14"; + case 0x0b0f: return "mhpmcounter15"; + case 0x0b10: return "mhpmcounter16"; + case 0x0b11: return "mhpmcounter17"; + case 0x0b12: return "mhpmcounter18"; + case 0x0b13: return "mhpmcounter19"; + case 0x0b14: return "mhpmcounter20"; + case 0x0b15: return "mhpmcounter21"; + case 0x0b16: return "mhpmcounter22"; + case 0x0b17: return "mhpmcounter23"; + case 0x0b18: return "mhpmcounter24"; + case 0x0b19: return "mhpmcounter25"; + case 0x0b1a: return "mhpmcounter26"; + case 0x0b1b: return "mhpmcounter27"; + case 0x0b1c: return "mhpmcounter28"; + case 0x0b1d: return "mhpmcounter29"; + case 0x0b1e: return "mhpmcounter30"; + case 0x0b1f: return "mhpmcounter31"; + case 0x0b80: return "mcycleh"; + case 0x0b81: return "mtimeh"; + case 0x0b82: return "minstreth"; + case 0x0b83: return "mhpmcounter3h"; + case 0x0b84: return "mhpmcounter4h"; + case 0x0b85: return "mhpmcounter5h"; + case 0x0b86: return "mhpmcounter6h"; + case 0x0b87: return "mhpmcounter7h"; + case 0x0b88: return "mhpmcounter8h"; + case 0x0b89: return "mhpmcounter9h"; + case 0x0b8a: return "mhpmcounter10h"; + case 0x0b8b: return "mhpmcounter11h"; + case 0x0b8c: return "mhpmcounter12h"; + case 0x0b8d: return "mhpmcounter13h"; + case 0x0b8e: return "mhpmcounter14h"; + case 0x0b8f: return "mhpmcounter15h"; + case 0x0b90: return "mhpmcounter16h"; + case 0x0b91: return "mhpmcounter17h"; + case 0x0b92: return "mhpmcounter18h"; + case 0x0b93: return "mhpmcounter19h"; + case 0x0b94: return "mhpmcounter20h"; + case 0x0b95: return "mhpmcounter21h"; + case 0x0b96: return "mhpmcounter22h"; + case 0x0b97: return "mhpmcounter23h"; + case 0x0b98: return "mhpmcounter24h"; + case 0x0b99: return "mhpmcounter25h"; + case 0x0b9a: return "mhpmcounter26h"; + case 0x0b9b: return "mhpmcounter27h"; + case 0x0b9c: return "mhpmcounter28h"; + case 0x0b9d: return "mhpmcounter29h"; + case 0x0b9e: return "mhpmcounter30h"; + case 0x0b9f: return "mhpmcounter31h"; + case 0x0c00: return "cycle"; + case 0x0c01: return "time"; + case 0x0c02: return "instret"; + case 0x0c80: return "cycleh"; + case 0x0c81: return "timeh"; + case 0x0c82: return "instreth"; + case 0x0d00: return "scycle"; + case 0x0d01: return "stime"; + case 0x0d02: return "sinstret"; + case 0x0d80: return "scycleh"; + case 0x0d81: return "stimeh"; + case 0x0d82: return "sinstreth"; + case 0x0e00: return "hcycle"; + case 0x0e01: return "htime"; + case 0x0e02: return "hinstret"; + case 0x0e80: return "hcycleh"; + case 0x0e81: return "htimeh"; + case 0x0e82: return "hinstreth"; + case 0x0f11: return "mvendorid"; + case 0x0f12: return "marchid"; + case 0x0f13: return "mimpid"; + case 0x0f14: return "mhartid"; + default: return NULL; + } +} + +/* decode opcode */ + +static void decode_inst_opcode(rv_decode *dec, rv_isa isa) +{ + rv_inst inst = dec->inst; + rv_opcode op = rv_op_illegal; + switch (((inst >> 0) & 0b11)) { + case 0: + switch (((inst >> 13) & 0b111)) { + case 0: op = rv_op_c_addi4spn; break; + case 1: + if (isa == rv128) { + op = rv_op_c_lq; + } else { + op = rv_op_c_fld; + } + break; + case 2: op = rv_op_c_lw; break; + case 3: + if (isa == rv32) { + op = rv_op_c_flw; + } else { + op = rv_op_c_ld; + } + break; + case 5: + if (isa == rv128) { + op = rv_op_c_sq; + } else { + op = rv_op_c_fsd; + } + break; + case 6: op = rv_op_c_sw; break; + case 7: + if (isa == rv32) { + op = rv_op_c_fsw; + } else { + op = rv_op_c_sd; + } + break; + } + break; + case 1: + switch (((inst >> 13) & 0b111)) { + case 0: + switch (((inst >> 2) & 0b11111111111)) { + case 0: op = rv_op_c_nop; break; + default: op = rv_op_c_addi; break; + } + break; + case 1: + if (isa == rv32) { + op = rv_op_c_jal; + } else { + op = rv_op_c_addiw; + } + break; + case 2: op = rv_op_c_li; break; + case 3: + switch (((inst >> 7) & 0b11111)) { + case 2: op = rv_op_c_addi16sp; break; + default: op = rv_op_c_lui; break; + } + break; + case 4: + switch (((inst >> 10) & 0b11)) { + case 0: + op = rv_op_c_srli; + break; + case 1: + op = rv_op_c_srai; + break; + case 2: op = rv_op_c_andi; break; + case 3: + switch (((inst >> 10) & 0b100) | ((inst >> 5) & 0b011)) { + case 0: op = rv_op_c_sub; break; + case 1: op = rv_op_c_xor; break; + case 2: op = rv_op_c_or; break; + case 3: op = rv_op_c_and; break; + case 4: op = rv_op_c_subw; break; + case 5: op = rv_op_c_addw; break; + } + break; + } + break; + case 5: op = rv_op_c_j; break; + case 6: op = rv_op_c_beqz; break; + case 7: op = rv_op_c_bnez; break; + } + break; + case 2: + switch (((inst >> 13) & 0b111)) { + case 0: + op = rv_op_c_slli; + break; + case 1: + if (isa == rv128) { + op = rv_op_c_lqsp; + } else { + op = rv_op_c_fldsp; + } + break; + case 2: op = rv_op_c_lwsp; break; + case 3: + if (isa == rv32) { + op = rv_op_c_flwsp; + } else { + op = rv_op_c_ldsp; + } + break; + case 4: + switch (((inst >> 12) & 0b1)) { + case 0: + switch (((inst >> 2) & 0b11111)) { + case 0: op = rv_op_c_jr; break; + default: op = rv_op_c_mv; break; + } + break; + case 1: + switch (((inst >> 2) & 0b11111)) { + case 0: + switch (((inst >> 7) & 0b11111)) { + case 0: op = rv_op_c_ebreak; break; + default: op = rv_op_c_jalr; break; + } + break; + default: op = rv_op_c_add; break; + } + break; + } + break; + case 5: + if (isa == rv128) { + op = rv_op_c_sqsp; + } else { + op = rv_op_c_fsdsp; break; + } + case 6: op = rv_op_c_swsp; break; + case 7: + if (isa == rv32) { + op = rv_op_c_fswsp; + } else { + op = rv_op_c_sdsp; + } + break; + } + break; + case 3: + switch (((inst >> 2) & 0b11111)) { + case 0: + switch (((inst >> 12) & 0b111)) { + case 0: op = rv_op_lb; break; + case 1: op = rv_op_lh; break; + case 2: op = rv_op_lw; break; + case 3: op = rv_op_ld; break; + case 4: op = rv_op_lbu; break; + case 5: op = rv_op_lhu; break; + case 6: op = rv_op_lwu; break; + case 7: op = rv_op_ldu; break; + } + break; + case 1: + switch (((inst >> 12) & 0b111)) { + case 2: op = rv_op_flw; break; + case 3: op = rv_op_fld; break; + case 4: op = rv_op_flq; break; + } + break; + case 3: + switch (((inst >> 12) & 0b111)) { + case 0: op = rv_op_fence; break; + case 1: op = rv_op_fence_i; break; + case 2: op = rv_op_lq; break; + } + break; + case 4: + switch (((inst >> 12) & 0b111)) { + case 0: op = rv_op_addi; break; + case 1: + switch (((inst >> 27) & 0b11111)) { + case 0: op = rv_op_slli; break; + } + break; + case 2: op = rv_op_slti; break; + case 3: op = rv_op_sltiu; break; + case 4: op = rv_op_xori; break; + case 5: + switch (((inst >> 27) & 0b11111)) { + case 0: op = rv_op_srli; break; + case 8: op = rv_op_srai; break; + } + break; + case 6: op = rv_op_ori; break; + case 7: op = rv_op_andi; break; + } + break; + case 5: op = rv_op_auipc; break; + case 6: + switch (((inst >> 12) & 0b111)) { + case 0: op = rv_op_addiw; break; + case 1: + switch (((inst >> 25) & 0b1111111)) { + case 0: op = rv_op_slliw; break; + } + break; + case 5: + switch (((inst >> 25) & 0b1111111)) { + case 0: op = rv_op_srliw; break; + case 32: op = rv_op_sraiw; break; + } + break; + } + break; + case 8: + switch (((inst >> 12) & 0b111)) { + case 0: op = rv_op_sb; break; + case 1: op = rv_op_sh; break; + case 2: op = rv_op_sw; break; + case 3: op = rv_op_sd; break; + case 4: op = rv_op_sq; break; + } + break; + case 9: + switch (((inst >> 12) & 0b111)) { + case 2: op = rv_op_fsw; break; + case 3: op = rv_op_fsd; break; + case 4: op = rv_op_fsq; break; + } + break; + case 11: + switch (((inst >> 24) & 0b11111000) | ((inst >> 12) & 0b00000111)) { + case 2: op = rv_op_amoadd_w; break; + case 3: op = rv_op_amoadd_d; break; + case 4: op = rv_op_amoadd_q; break; + case 10: op = rv_op_amoswap_w; break; + case 11: op = rv_op_amoswap_d; break; + case 12: op = rv_op_amoswap_q; break; + case 18: + switch (((inst >> 20) & 0b11111)) { + case 0: op = rv_op_lr_w; break; + } + break; + case 19: + switch (((inst >> 20) & 0b11111)) { + case 0: op = rv_op_lr_d; break; + } + break; + case 20: + switch (((inst >> 20) & 0b11111)) { + case 0: op = rv_op_lr_q; break; + } + break; + case 26: op = rv_op_sc_w; break; + case 27: op = rv_op_sc_d; break; + case 28: op = rv_op_sc_q; break; + case 34: op = rv_op_amoxor_w; break; + case 35: op = rv_op_amoxor_d; break; + case 36: op = rv_op_amoxor_q; break; + case 66: op = rv_op_amoor_w; break; + case 67: op = rv_op_amoor_d; break; + case 68: op = rv_op_amoor_q; break; + case 98: op = rv_op_amoand_w; break; + case 99: op = rv_op_amoand_d; break; + case 100: op = rv_op_amoand_q; break; + case 130: op = rv_op_amomin_w; break; + case 131: op = rv_op_amomin_d; break; + case 132: op = rv_op_amomin_q; break; + case 162: op = rv_op_amomax_w; break; + case 163: op = rv_op_amomax_d; break; + case 164: op = rv_op_amomax_q; break; + case 194: op = rv_op_amominu_w; break; + case 195: op = rv_op_amominu_d; break; + case 196: op = rv_op_amominu_q; break; + case 226: op = rv_op_amomaxu_w; break; + case 227: op = rv_op_amomaxu_d; break; + case 228: op = rv_op_amomaxu_q; break; + } + break; + case 12: + switch (((inst >> 22) & 0b1111111000) | ((inst >> 12) & 0b0000000111)) { + case 0: op = rv_op_add; break; + case 1: op = rv_op_sll; break; + case 2: op = rv_op_slt; break; + case 3: op = rv_op_sltu; break; + case 4: op = rv_op_xor; break; + case 5: op = rv_op_srl; break; + case 6: op = rv_op_or; break; + case 7: op = rv_op_and; break; + case 8: op = rv_op_mul; break; + case 9: op = rv_op_mulh; break; + case 10: op = rv_op_mulhsu; break; + case 11: op = rv_op_mulhu; break; + case 12: op = rv_op_div; break; + case 13: op = rv_op_divu; break; + case 14: op = rv_op_rem; break; + case 15: op = rv_op_remu; break; + case 256: op = rv_op_sub; break; + case 261: op = rv_op_sra; break; + } + break; + case 13: op = rv_op_lui; break; + case 14: + switch (((inst >> 22) & 0b1111111000) | ((inst >> 12) & 0b0000000111)) { + case 0: op = rv_op_addw; break; + case 1: op = rv_op_sllw; break; + case 5: op = rv_op_srlw; break; + case 8: op = rv_op_mulw; break; + case 12: op = rv_op_divw; break; + case 13: op = rv_op_divuw; break; + case 14: op = rv_op_remw; break; + case 15: op = rv_op_remuw; break; + case 256: op = rv_op_subw; break; + case 261: op = rv_op_sraw; break; + } + break; + case 16: + switch (((inst >> 25) & 0b11)) { + case 0: op = rv_op_fmadd_s; break; + case 1: op = rv_op_fmadd_d; break; + case 3: op = rv_op_fmadd_q; break; + } + break; + case 17: + switch (((inst >> 25) & 0b11)) { + case 0: op = rv_op_fmsub_s; break; + case 1: op = rv_op_fmsub_d; break; + case 3: op = rv_op_fmsub_q; break; + } + break; + case 18: + switch (((inst >> 25) & 0b11)) { + case 0: op = rv_op_fnmsub_s; break; + case 1: op = rv_op_fnmsub_d; break; + case 3: op = rv_op_fnmsub_q; break; + } + break; + case 19: + switch (((inst >> 25) & 0b11)) { + case 0: op = rv_op_fnmadd_s; break; + case 1: op = rv_op_fnmadd_d; break; + case 3: op = rv_op_fnmadd_q; break; + } + break; + case 20: + switch (((inst >> 25) & 0b1111111)) { + case 0: op = rv_op_fadd_s; break; + case 1: op = rv_op_fadd_d; break; + case 3: op = rv_op_fadd_q; break; + case 4: op = rv_op_fsub_s; break; + case 5: op = rv_op_fsub_d; break; + case 7: op = rv_op_fsub_q; break; + case 8: op = rv_op_fmul_s; break; + case 9: op = rv_op_fmul_d; break; + case 11: op = rv_op_fmul_q; break; + case 12: op = rv_op_fdiv_s; break; + case 13: op = rv_op_fdiv_d; break; + case 15: op = rv_op_fdiv_q; break; + case 16: + switch (((inst >> 12) & 0b111)) { + case 0: op = rv_op_fsgnj_s; break; + case 1: op = rv_op_fsgnjn_s; break; + case 2: op = rv_op_fsgnjx_s; break; + } + break; + case 17: + switch (((inst >> 12) & 0b111)) { + case 0: op = rv_op_fsgnj_d; break; + case 1: op = rv_op_fsgnjn_d; break; + case 2: op = rv_op_fsgnjx_d; break; + } + break; + case 19: + switch (((inst >> 12) & 0b111)) { + case 0: op = rv_op_fsgnj_q; break; + case 1: op = rv_op_fsgnjn_q; break; + case 2: op = rv_op_fsgnjx_q; break; + } + break; + case 20: + switch (((inst >> 12) & 0b111)) { + case 0: op = rv_op_fmin_s; break; + case 1: op = rv_op_fmax_s; break; + } + break; + case 21: + switch (((inst >> 12) & 0b111)) { + case 0: op = rv_op_fmin_d; break; + case 1: op = rv_op_fmax_d; break; + } + break; + case 23: + switch (((inst >> 12) & 0b111)) { + case 0: op = rv_op_fmin_q; break; + case 1: op = rv_op_fmax_q; break; + } + break; + case 32: + switch (((inst >> 20) & 0b11111)) { + case 1: op = rv_op_fcvt_s_d; break; + case 3: op = rv_op_fcvt_s_q; break; + } + break; + case 33: + switch (((inst >> 20) & 0b11111)) { + case 0: op = rv_op_fcvt_d_s; break; + case 3: op = rv_op_fcvt_d_q; break; + } + break; + case 35: + switch (((inst >> 20) & 0b11111)) { + case 0: op = rv_op_fcvt_q_s; break; + case 1: op = rv_op_fcvt_q_d; break; + } + break; + case 44: + switch (((inst >> 20) & 0b11111)) { + case 0: op = rv_op_fsqrt_s; break; + } + break; + case 45: + switch (((inst >> 20) & 0b11111)) { + case 0: op = rv_op_fsqrt_d; break; + } + break; + case 47: + switch (((inst >> 20) & 0b11111)) { + case 0: op = rv_op_fsqrt_q; break; + } + break; + case 80: + switch (((inst >> 12) & 0b111)) { + case 0: op = rv_op_fle_s; break; + case 1: op = rv_op_flt_s; break; + case 2: op = rv_op_feq_s; break; + } + break; + case 81: + switch (((inst >> 12) & 0b111)) { + case 0: op = rv_op_fle_d; break; + case 1: op = rv_op_flt_d; break; + case 2: op = rv_op_feq_d; break; + } + break; + case 83: + switch (((inst >> 12) & 0b111)) { + case 0: op = rv_op_fle_q; break; + case 1: op = rv_op_flt_q; break; + case 2: op = rv_op_feq_q; break; + } + break; + case 96: + switch (((inst >> 20) & 0b11111)) { + case 0: op = rv_op_fcvt_w_s; break; + case 1: op = rv_op_fcvt_wu_s; break; + case 2: op = rv_op_fcvt_l_s; break; + case 3: op = rv_op_fcvt_lu_s; break; + } + break; + case 97: + switch (((inst >> 20) & 0b11111)) { + case 0: op = rv_op_fcvt_w_d; break; + case 1: op = rv_op_fcvt_wu_d; break; + case 2: op = rv_op_fcvt_l_d; break; + case 3: op = rv_op_fcvt_lu_d; break; + } + break; + case 99: + switch (((inst >> 20) & 0b11111)) { + case 0: op = rv_op_fcvt_w_q; break; + case 1: op = rv_op_fcvt_wu_q; break; + case 2: op = rv_op_fcvt_l_q; break; + case 3: op = rv_op_fcvt_lu_q; break; + } + break; + case 104: + switch (((inst >> 20) & 0b11111)) { + case 0: op = rv_op_fcvt_s_w; break; + case 1: op = rv_op_fcvt_s_wu; break; + case 2: op = rv_op_fcvt_s_l; break; + case 3: op = rv_op_fcvt_s_lu; break; + } + break; + case 105: + switch (((inst >> 20) & 0b11111)) { + case 0: op = rv_op_fcvt_d_w; break; + case 1: op = rv_op_fcvt_d_wu; break; + case 2: op = rv_op_fcvt_d_l; break; + case 3: op = rv_op_fcvt_d_lu; break; + } + break; + case 107: + switch (((inst >> 20) & 0b11111)) { + case 0: op = rv_op_fcvt_q_w; break; + case 1: op = rv_op_fcvt_q_wu; break; + case 2: op = rv_op_fcvt_q_l; break; + case 3: op = rv_op_fcvt_q_lu; break; + } + break; + case 112: + switch (((inst >> 17) & 0b11111000) | ((inst >> 12) & 0b00000111)) { + case 0: op = rv_op_fmv_x_s; break; + case 1: op = rv_op_fclass_s; break; + } + break; + case 113: + switch (((inst >> 17) & 0b11111000) | ((inst >> 12) & 0b00000111)) { + case 0: op = rv_op_fmv_x_d; break; + case 1: op = rv_op_fclass_d; break; + } + break; + case 115: + switch (((inst >> 17) & 0b11111000) | ((inst >> 12) & 0b00000111)) { + case 0: op = rv_op_fmv_x_q; break; + case 1: op = rv_op_fclass_q; break; + } + break; + case 120: + switch (((inst >> 17) & 0b11111000) | ((inst >> 12) & 0b00000111)) { + case 0: op = rv_op_fmv_s_x; break; + } + break; + case 121: + switch (((inst >> 17) & 0b11111000) | ((inst >> 12) & 0b00000111)) { + case 0: op = rv_op_fmv_d_x; break; + } + break; + case 123: + switch (((inst >> 17) & 0b11111000) | ((inst >> 12) & 0b00000111)) { + case 0: op = rv_op_fmv_q_x; break; + } + break; + } + break; + case 22: + switch (((inst >> 12) & 0b111)) { + case 0: op = rv_op_addid; break; + case 1: + switch (((inst >> 26) & 0b111111)) { + case 0: op = rv_op_sllid; break; + } + break; + case 5: + switch (((inst >> 26) & 0b111111)) { + case 0: op = rv_op_srlid; break; + case 16: op = rv_op_sraid; break; + } + break; + } + break; + case 24: + switch (((inst >> 12) & 0b111)) { + case 0: op = rv_op_beq; break; + case 1: op = rv_op_bne; break; + case 4: op = rv_op_blt; break; + case 5: op = rv_op_bge; break; + case 6: op = rv_op_bltu; break; + case 7: op = rv_op_bgeu; break; + } + break; + case 25: + switch (((inst >> 12) & 0b111)) { + case 0: op = rv_op_jalr; break; + } + break; + case 27: op = rv_op_jal; break; + case 28: + switch (((inst >> 12) & 0b111)) { + case 0: + switch (((inst >> 20) & 0b111111100000) | ((inst >> 7) & 0b000000011111)) { + case 0: + switch (((inst >> 15) & 0b1111111111)) { + case 0: op = rv_op_ecall; break; + case 32: op = rv_op_ebreak; break; + case 64: op = rv_op_uret; break; + } + break; + case 256: + switch (((inst >> 20) & 0b11111)) { + case 2: + switch (((inst >> 15) & 0b11111)) { + case 0: op = rv_op_sret; break; + } + break; + case 4: op = rv_op_sfence_vm; break; + case 5: + switch (((inst >> 15) & 0b11111)) { + case 0: op = rv_op_wfi; break; + } + break; + } + break; + case 288: op = rv_op_sfence_vma; break; + case 512: + switch (((inst >> 15) & 0b1111111111)) { + case 64: op = rv_op_hret; break; + } + break; + case 768: + switch (((inst >> 15) & 0b1111111111)) { + case 64: op = rv_op_mret; break; + } + break; + case 1952: + switch (((inst >> 15) & 0b1111111111)) { + case 576: op = rv_op_dret; break; + } + break; + } + break; + case 1: op = rv_op_csrrw; break; + case 2: op = rv_op_csrrs; break; + case 3: op = rv_op_csrrc; break; + case 5: op = rv_op_csrrwi; break; + case 6: op = rv_op_csrrsi; break; + case 7: op = rv_op_csrrci; break; + } + break; + case 30: + switch (((inst >> 22) & 0b1111111000) | ((inst >> 12) & 0b0000000111)) { + case 0: op = rv_op_addd; break; + case 1: op = rv_op_slld; break; + case 5: op = rv_op_srld; break; + case 8: op = rv_op_muld; break; + case 12: op = rv_op_divd; break; + case 13: op = rv_op_divud; break; + case 14: op = rv_op_remd; break; + case 15: op = rv_op_remud; break; + case 256: op = rv_op_subd; break; + case 261: op = rv_op_srad; break; + } + break; + } + break; + } + dec->op = op; +} + +/* operand extractors */ + +static uint32_t operand_rd(rv_inst inst) +{ + return (inst << 52) >> 59; +} + +static uint32_t operand_rs1(rv_inst inst) +{ + return (inst << 44) >> 59; +} + +static uint32_t operand_rs2(rv_inst inst) +{ + return (inst << 39) >> 59; +} + +static uint32_t operand_rs3(rv_inst inst) +{ + return (inst << 32) >> 59; +} + +static uint32_t operand_aq(rv_inst inst) +{ + return (inst << 37) >> 63; +} + +static uint32_t operand_rl(rv_inst inst) +{ + return (inst << 38) >> 63; +} + +static uint32_t operand_pred(rv_inst inst) +{ + return (inst << 36) >> 60; +} + +static uint32_t operand_succ(rv_inst inst) +{ + return (inst << 40) >> 60; +} + +static uint32_t operand_rm(rv_inst inst) +{ + return (inst << 49) >> 61; +} + +static uint32_t operand_shamt5(rv_inst inst) +{ + return (inst << 39) >> 59; +} + +static uint32_t operand_shamt6(rv_inst inst) +{ + return (inst << 38) >> 58; +} + +static uint32_t operand_shamt7(rv_inst inst) +{ + return (inst << 37) >> 57; +} + +static uint32_t operand_crdq(rv_inst inst) +{ + return (inst << 59) >> 61; +} + +static uint32_t operand_crs1q(rv_inst inst) +{ + return (inst << 54) >> 61; +} + +static uint32_t operand_crs1rdq(rv_inst inst) +{ + return (inst << 54) >> 61; +} + +static uint32_t operand_crs2q(rv_inst inst) +{ + return (inst << 59) >> 61; +} + +static uint32_t operand_crd(rv_inst inst) +{ + return (inst << 52) >> 59; +} + +static uint32_t operand_crs1(rv_inst inst) +{ + return (inst << 52) >> 59; +} + +static uint32_t operand_crs1rd(rv_inst inst) +{ + return (inst << 52) >> 59; +} + +static uint32_t operand_crs2(rv_inst inst) +{ + return (inst << 57) >> 59; +} + +static uint32_t operand_cimmsh5(rv_inst inst) +{ + return (inst << 57) >> 59; +} + +static uint32_t operand_csr12(rv_inst inst) +{ + return (inst << 32) >> 52; +} + +static int32_t operand_imm12(rv_inst inst) +{ + return ((int64_t)inst << 32) >> 52; +} + +static int32_t operand_imm20(rv_inst inst) +{ + return (((int64_t)inst << 32) >> 44) << 12; +} + +static int32_t operand_jimm20(rv_inst inst) +{ + return (((int64_t)inst << 32) >> 63) << 20 | + ((inst << 33) >> 54) << 1 | + ((inst << 43) >> 63) << 11 | + ((inst << 44) >> 56) << 12; +} + +static int32_t operand_simm12(rv_inst inst) +{ + return (((int64_t)inst << 32) >> 57) << 5 | + (inst << 52) >> 59; +} + +static int32_t operand_sbimm12(rv_inst inst) +{ + return (((int64_t)inst << 32) >> 63) << 12 | + ((inst << 33) >> 58) << 5 | + ((inst << 52) >> 60) << 1 | + ((inst << 56) >> 63) << 11; +} + +static uint32_t operand_cimmsh6(rv_inst inst) +{ + return ((inst << 51) >> 63) << 5 | + (inst << 57) >> 59; +} + +static int32_t operand_cimmi(rv_inst inst) +{ + return (((int64_t)inst << 51) >> 63) << 5 | + (inst << 57) >> 59; +} + +static int32_t operand_cimmui(rv_inst inst) +{ + return (((int64_t)inst << 51) >> 63) << 17 | + ((inst << 57) >> 59) << 12; +} + +static uint32_t operand_cimmlwsp(rv_inst inst) +{ + return ((inst << 51) >> 63) << 5 | + ((inst << 57) >> 61) << 2 | + ((inst << 60) >> 62) << 6; +} + +static uint32_t operand_cimmldsp(rv_inst inst) +{ + return ((inst << 51) >> 63) << 5 | + ((inst << 57) >> 62) << 3 | + ((inst << 59) >> 61) << 6; +} + +static uint32_t operand_cimmlqsp(rv_inst inst) +{ + return ((inst << 51) >> 63) << 5 | + ((inst << 57) >> 63) << 4 | + ((inst << 58) >> 60) << 6; +} + +static int32_t operand_cimm16sp(rv_inst inst) +{ + return (((int64_t)inst << 51) >> 63) << 9 | + ((inst << 57) >> 63) << 4 | + ((inst << 58) >> 63) << 6 | + ((inst << 59) >> 62) << 7 | + ((inst << 61) >> 63) << 5; +} + +static int32_t operand_cimmj(rv_inst inst) +{ + return (((int64_t)inst << 51) >> 63) << 11 | + ((inst << 52) >> 63) << 4 | + ((inst << 53) >> 62) << 8 | + ((inst << 55) >> 63) << 10 | + ((inst << 56) >> 63) << 6 | + ((inst << 57) >> 63) << 7 | + ((inst << 58) >> 61) << 1 | + ((inst << 61) >> 63) << 5; +} + +static int32_t operand_cimmb(rv_inst inst) +{ + return (((int64_t)inst << 51) >> 63) << 8 | + ((inst << 52) >> 62) << 3 | + ((inst << 57) >> 62) << 6 | + ((inst << 59) >> 62) << 1 | + ((inst << 61) >> 63) << 5; +} + +static uint32_t operand_cimmswsp(rv_inst inst) +{ + return ((inst << 51) >> 60) << 2 | + ((inst << 55) >> 62) << 6; +} + +static uint32_t operand_cimmsdsp(rv_inst inst) +{ + return ((inst << 51) >> 61) << 3 | + ((inst << 54) >> 61) << 6; +} + +static uint32_t operand_cimmsqsp(rv_inst inst) +{ + return ((inst << 51) >> 62) << 4 | + ((inst << 53) >> 60) << 6; +} + +static uint32_t operand_cimm4spn(rv_inst inst) +{ + return ((inst << 51) >> 62) << 4 | + ((inst << 53) >> 60) << 6 | + ((inst << 57) >> 63) << 2 | + ((inst << 58) >> 63) << 3; +} + +static uint32_t operand_cimmw(rv_inst inst) +{ + return ((inst << 51) >> 61) << 3 | + ((inst << 57) >> 63) << 2 | + ((inst << 58) >> 63) << 6; +} + +static uint32_t operand_cimmd(rv_inst inst) +{ + return ((inst << 51) >> 61) << 3 | + ((inst << 57) >> 62) << 6; +} + +static uint32_t operand_cimmq(rv_inst inst) +{ + return ((inst << 51) >> 62) << 4 | + ((inst << 53) >> 63) << 8 | + ((inst << 57) >> 62) << 6; +} + +/* decode operands */ + +static void decode_inst_operands(rv_decode *dec) +{ + rv_inst inst = dec->inst; + dec->codec = opcode_data[dec->op].codec; + switch (dec->codec) { + case rv_codec_none: + dec->rd = dec->rs1 = dec->rs2 = rv_ireg_zero; + dec->imm = 0; + break; + case rv_codec_u: + dec->rd = operand_rd(inst); + dec->rs1 = dec->rs2 = rv_ireg_zero; + dec->imm = operand_imm20(inst); + break; + case rv_codec_uj: + dec->rd = operand_rd(inst); + dec->rs1 = dec->rs2 = rv_ireg_zero; + dec->imm = operand_jimm20(inst); + break; + case rv_codec_i: + dec->rd = operand_rd(inst); + dec->rs1 = operand_rs1(inst); + dec->rs2 = rv_ireg_zero; + dec->imm = operand_imm12(inst); + break; + case rv_codec_i_sh5: + dec->rd = operand_rd(inst); + dec->rs1 = operand_rs1(inst); + dec->rs2 = rv_ireg_zero; + dec->imm = operand_shamt5(inst); + break; + case rv_codec_i_sh6: + dec->rd = operand_rd(inst); + dec->rs1 = operand_rs1(inst); + dec->rs2 = rv_ireg_zero; + dec->imm = operand_shamt6(inst); + break; + case rv_codec_i_sh7: + dec->rd = operand_rd(inst); + dec->rs1 = operand_rs1(inst); + dec->rs2 = rv_ireg_zero; + dec->imm = operand_shamt7(inst); + break; + case rv_codec_i_csr: + dec->rd = operand_rd(inst); + dec->rs1 = operand_rs1(inst); + dec->rs2 = rv_ireg_zero; + dec->imm = operand_csr12(inst); + break; + case rv_codec_s: + dec->rd = rv_ireg_zero; + dec->rs1 = operand_rs1(inst); + dec->rs2 = operand_rs2(inst); + dec->imm = operand_simm12(inst); + break; + case rv_codec_sb: + dec->rd = rv_ireg_zero; + dec->rs1 = operand_rs1(inst); + dec->rs2 = operand_rs2(inst); + dec->imm = operand_sbimm12(inst); + break; + case rv_codec_r: + dec->rd = operand_rd(inst); + dec->rs1 = operand_rs1(inst); + dec->rs2 = operand_rs2(inst); + dec->imm = 0; + break; + case rv_codec_r_m: + dec->rd = operand_rd(inst); + dec->rs1 = operand_rs1(inst); + dec->rs2 = operand_rs2(inst); + dec->imm = 0; + dec->rm = operand_rm(inst); + break; + case rv_codec_r4_m: + dec->rd = operand_rd(inst); + dec->rs1 = operand_rs1(inst); + dec->rs2 = operand_rs2(inst); + dec->rs3 = operand_rs3(inst); + dec->imm = 0; + dec->rm = operand_rm(inst); + break; + case rv_codec_r_a: + dec->rd = operand_rd(inst); + dec->rs1 = operand_rs1(inst); + dec->rs2 = operand_rs2(inst); + dec->imm = 0; + dec->aq = operand_aq(inst); + dec->rl = operand_rl(inst); + break; + case rv_codec_r_l: + dec->rd = operand_rd(inst); + dec->rs1 = operand_rs1(inst); + dec->rs2 = rv_ireg_zero; + dec->imm = 0; + dec->aq = operand_aq(inst); + dec->rl = operand_rl(inst); + break; + case rv_codec_r_f: + dec->rd = dec->rs1 = dec->rs2 = rv_ireg_zero; + dec->pred = operand_pred(inst); + dec->succ = operand_succ(inst); + dec->imm = 0; + break; + case rv_codec_cb: + dec->rd = rv_ireg_zero; + dec->rs1 = operand_crs1q(inst) + 8; + dec->rs2 = rv_ireg_zero; + dec->imm = operand_cimmb(inst); + break; + case rv_codec_cb_imm: + dec->rd = dec->rs1 = operand_crs1rdq(inst) + 8; + dec->rs2 = rv_ireg_zero; + dec->imm = operand_cimmi(inst); + break; + case rv_codec_cb_sh5: + dec->rd = dec->rs1 = operand_crs1rdq(inst) + 8; + dec->rs2 = rv_ireg_zero; + dec->imm = operand_cimmsh5(inst); + break; + case rv_codec_cb_sh6: + dec->rd = dec->rs1 = operand_crs1rdq(inst) + 8; + dec->rs2 = rv_ireg_zero; + dec->imm = operand_cimmsh6(inst); + break; + case rv_codec_ci: + dec->rd = dec->rs1 = operand_crs1rd(inst); + dec->rs2 = rv_ireg_zero; + dec->imm = operand_cimmi(inst); + break; + case rv_codec_ci_sh5: + dec->rd = dec->rs1 = operand_crs1rd(inst); + dec->rs2 = rv_ireg_zero; + dec->imm = operand_cimmsh5(inst); + break; + case rv_codec_ci_sh6: + dec->rd = dec->rs1 = operand_crs1rd(inst); + dec->rs2 = rv_ireg_zero; + dec->imm = operand_cimmsh6(inst); + break; + case rv_codec_ci_16sp: + dec->rd = rv_ireg_sp; + dec->rs1 = rv_ireg_sp; + dec->rs2 = rv_ireg_zero; + dec->imm = operand_cimm16sp(inst); + break; + case rv_codec_ci_lwsp: + dec->rd = operand_crd(inst); + dec->rs1 = rv_ireg_sp; + dec->rs2 = rv_ireg_zero; + dec->imm = operand_cimmlwsp(inst); + break; + case rv_codec_ci_ldsp: + dec->rd = operand_crd(inst); + dec->rs1 = rv_ireg_sp; + dec->rs2 = rv_ireg_zero; + dec->imm = operand_cimmldsp(inst); + break; + case rv_codec_ci_lqsp: + dec->rd = operand_crd(inst); + dec->rs1 = rv_ireg_sp; + dec->rs2 = rv_ireg_zero; + dec->imm = operand_cimmlqsp(inst); + break; + case rv_codec_ci_li: + dec->rd = operand_crd(inst); + dec->rs1 = rv_ireg_zero; + dec->rs2 = rv_ireg_zero; + dec->imm = operand_cimmi(inst); + break; + case rv_codec_ci_lui: + dec->rd = operand_crd(inst); + dec->rs1 = rv_ireg_zero; + dec->rs2 = rv_ireg_zero; + dec->imm = operand_cimmui(inst); + break; + case rv_codec_ci_none: + dec->rd = dec->rs1 = dec->rs2 = rv_ireg_zero; + dec->imm = 0; + break; + case rv_codec_ciw_4spn: + dec->rd = operand_crdq(inst) + 8; + dec->rs1 = rv_ireg_sp; + dec->rs2 = rv_ireg_zero; + dec->imm = operand_cimm4spn(inst); + break; + case rv_codec_cj: + dec->rd = dec->rs1 = dec->rs2 = rv_ireg_zero; + dec->imm = operand_cimmj(inst); + break; + case rv_codec_cj_jal: + dec->rd = rv_ireg_ra; + dec->rs1 = dec->rs2 = rv_ireg_zero; + dec->imm = operand_cimmj(inst); + break; + case rv_codec_cl_lw: + dec->rd = operand_crdq(inst) + 8; + dec->rs1 = operand_crs1q(inst) + 8; + dec->rs2 = rv_ireg_zero; + dec->imm = operand_cimmw(inst); + break; + case rv_codec_cl_ld: + dec->rd = operand_crdq(inst) + 8; + dec->rs1 = operand_crs1q(inst) + 8; + dec->rs2 = rv_ireg_zero; + dec->imm = operand_cimmd(inst); + break; + case rv_codec_cl_lq: + dec->rd = operand_crdq(inst) + 8; + dec->rs1 = operand_crs1q(inst) + 8; + dec->rs2 = rv_ireg_zero; + dec->imm = operand_cimmq(inst); + break; + case rv_codec_cr: + dec->rd = dec->rs1 = operand_crs1rd(inst); + dec->rs2 = operand_crs2(inst); + dec->imm = 0; + break; + case rv_codec_cr_mv: + dec->rd = operand_crd(inst); + dec->rs1 = operand_crs2(inst); + dec->rs2 = rv_ireg_zero; + dec->imm = 0; + break; + case rv_codec_cr_jalr: + dec->rd = rv_ireg_ra; + dec->rs1 = operand_crs1(inst); + dec->rs2 = rv_ireg_zero; + dec->imm = 0; + break; + case rv_codec_cr_jr: + dec->rd = rv_ireg_zero; + dec->rs1 = operand_crs1(inst); + dec->rs2 = rv_ireg_zero; + dec->imm = 0; + break; + case rv_codec_cs: + dec->rd = dec->rs1 = operand_crs1rdq(inst) + 8; + dec->rs2 = operand_crs2q(inst) + 8; + dec->imm = 0; + break; + case rv_codec_cs_sw: + dec->rd = rv_ireg_zero; + dec->rs1 = operand_crs1q(inst) + 8; + dec->rs2 = operand_crs2q(inst) + 8; + dec->imm = operand_cimmw(inst); + break; + case rv_codec_cs_sd: + dec->rd = rv_ireg_zero; + dec->rs1 = operand_crs1q(inst) + 8; + dec->rs2 = operand_crs2q(inst) + 8; + dec->imm = operand_cimmd(inst); + break; + case rv_codec_cs_sq: + dec->rd = rv_ireg_zero; + dec->rs1 = operand_crs1q(inst) + 8; + dec->rs2 = operand_crs2q(inst) + 8; + dec->imm = operand_cimmq(inst); + break; + case rv_codec_css_swsp: + dec->rd = rv_ireg_zero; + dec->rs1 = rv_ireg_sp; + dec->rs2 = operand_crs2(inst); + dec->imm = operand_cimmswsp(inst); + break; + case rv_codec_css_sdsp: + dec->rd = rv_ireg_zero; + dec->rs1 = rv_ireg_sp; + dec->rs2 = operand_crs2(inst); + dec->imm = operand_cimmsdsp(inst); + break; + case rv_codec_css_sqsp: + dec->rd = rv_ireg_zero; + dec->rs1 = rv_ireg_sp; + dec->rs2 = operand_crs2(inst); + dec->imm = operand_cimmsqsp(inst); + break; + }; +} + +/* check constraint */ + +static bool check_constraints(rv_decode *dec, const rvc_constraint *c) +{ + int32_t imm = dec->imm; + uint8_t rd = dec->rd, rs1 = dec->rs1, rs2 = dec->rs2; + while (*c != rvc_end) { + switch (*c) { + case rvc_simm_6: + if (!(imm >= -32 && imm < 32)) { + return false; + } + break; + case rvc_imm_6: + if (!(imm <= 63)) { + return false; + } + break; + case rvc_imm_7: + if (!(imm <= 127)) { + return false; + } + break; + case rvc_imm_8: + if (!(imm <= 255)) { + return false; + } + break; + case rvc_imm_9: + if (!(imm <= 511)) { + return false; + } + break; + case rvc_imm_10: + if (!(imm <= 1023)) { + return false; + } + break; + case rvc_imm_12: + if (!(imm <= 4095)) { + return false; + } + break; + case rvc_imm_18: + if (!(imm <= 262143)) { + return false; + } + break; + case rvc_imm_nz: + if (!(imm != 0)) { + return false; + } + break; + case rvc_imm_x2: + if (!((imm & 0b1) == 0)) { + return false; + } + break; + case rvc_imm_x4: + if (!((imm & 0b11) == 0)) { + return false; + } + break; + case rvc_imm_x8: + if (!((imm & 0b111) == 0)) { + return false; + } + break; + case rvc_imm_x16: + if (!((imm & 0b1111) == 0)) { + return false; + } + break; + case rvc_rd_b3: + if (!(rd >= 8 && rd <= 15)) { + return false; + } + break; + case rvc_rs1_b3: + if (!(rs1 >= 8 && rs1 <= 15)) { + return false; + } + break; + case rvc_rs2_b3: + if (!(rs2 >= 8 && rs2 <= 15)) { + return false; + } + break; + case rvc_rd_eq_rs1: + if (!(rd == rs1)) { + return false; + } + break; + case rvc_rd_eq_ra: + if (!(rd == 1)) { + return false; + } + break; + case rvc_rd_eq_sp: + if (!(rd == 2)) { + return false; + } + break; + case rvc_rd_eq_x0: + if (!(rd == 0)) { + return false; + } + break; + case rvc_rs1_eq_sp: + if (!(rs1 == 2)) { + return false; + } + break; + case rvc_rs1_eq_x0: + if (!(rs1 == 0)) { + return false; + } + break; + case rvc_rs2_eq_x0: + if (!(rs2 == 0)) { + return false; + } + break; + case rvc_rd_ne_x0_x2: + if (!(rd != 0 && rd != 2)) { + return false; + } + break; + case rvc_rd_ne_x0: + if (!(rd != 0)) { + return false; + } + break; + case rvc_rs1_ne_x0: + if (!(rs1 != 0)) { + return false; + } + break; + case rvc_rs2_ne_x0: + if (!(rs2 != 0)) { + return false; + } + break; + case rvc_rs2_eq_rs1: + if (!(rs2 == rs1)) { + return false; + } + break; + case rvc_rs1_eq_ra: + if (!(rs1 == 1)) { + return false; + } + break; + case rvc_imm_eq_zero: + if (!(imm == 0)) { + return false; + } + break; + case rvc_imm_eq_n1: + if (!(imm == -1)) { + return false; + } + break; + case rvc_imm_eq_p1: + if (!(imm == 1)) { + return false; + } + break; + case rvc_csr_eq_0x001: + if (!(imm == 0x001)) { + return false; + } + break; + case rvc_csr_eq_0x002: + if (!(imm == 0x002)) { + return false; + } + break; + case rvc_csr_eq_0x003: + if (!(imm == 0x003)) { + return false; + } + break; + case rvc_csr_eq_0xc00: + if (!(imm == 0xc00)) { + return false; + } + break; + case rvc_csr_eq_0xc01: + if (!(imm == 0xc01)) { + return false; + } + break; + case rvc_csr_eq_0xc02: + if (!(imm == 0xc02)) { + return false; + } + break; + case rvc_csr_eq_0xc80: + if (!(imm == 0xc80)) { + return false; + } + break; + case rvc_csr_eq_0xc81: + if (!(imm == 0xc81)) { + return false; + } + break; + case rvc_csr_eq_0xc82: + if (!(imm == 0xc82)) { + return false; + } + break; + default: break; + } + c++; + } + return true; +} + +/* instruction length */ + +static size_t inst_length(rv_inst inst) +{ + /* NOTE: supports maximum instruction size of 64-bits */ + + /* instruction length coding + * + * aa - 16 bit aa != 11 + * bbb11 - 32 bit bbb != 111 + * 011111 - 48 bit + * 0111111 - 64 bit + */ + + return (inst & 0b11) != 0b11 ? 2 + : (inst & 0b11100) != 0b11100 ? 4 + : (inst & 0b111111) == 0b011111 ? 6 + : (inst & 0b1111111) == 0b0111111 ? 8 + : 0; +} + +/* format instruction */ + +static void append(char *s1, const char *s2, size_t n) +{ + size_t l1 = strlen(s1); + if (n - l1 - 1 > 0) { + strncat(s1, s2, n - l1); + } +} + +static void format_inst(char *buf, size_t buflen, size_t tab, rv_decode *dec) +{ + char tmp[64]; + const char *fmt; + + if (dec->op == rv_op_illegal) { + size_t len = inst_length(dec->inst); + switch (len) { + case 2: + snprintf(buf, buflen, "(0x%04" PRIx64 ")", dec->inst); + break; + case 4: + snprintf(buf, buflen, "(0x%08" PRIx64 ")", dec->inst); + break; + case 6: + snprintf(buf, buflen, "(0x%012" PRIx64 ")", dec->inst); + break; + default: + snprintf(buf, buflen, "(0x%016" PRIx64 ")", dec->inst); + break; + } + return; + } + + fmt = opcode_data[dec->op].format; + while (*fmt) { + switch (*fmt) { + case 'O': + append(buf, opcode_data[dec->op].name, buflen); + break; + case '(': + append(buf, "(", buflen); + break; + case ',': + append(buf, ",", buflen); + break; + case ')': + append(buf, ")", buflen); + break; + case '0': + append(buf, rv_ireg_name_sym[dec->rd], buflen); + break; + case '1': + append(buf, rv_ireg_name_sym[dec->rs1], buflen); + break; + case '2': + append(buf, rv_ireg_name_sym[dec->rs2], buflen); + break; + case '3': + append(buf, rv_freg_name_sym[dec->rd], buflen); + break; + case '4': + append(buf, rv_freg_name_sym[dec->rs1], buflen); + break; + case '5': + append(buf, rv_freg_name_sym[dec->rs2], buflen); + break; + case '6': + append(buf, rv_freg_name_sym[dec->rs3], buflen); + break; + case '7': + snprintf(tmp, sizeof(tmp), "%d", dec->rs1); + append(buf, tmp, buflen); + break; + case 'i': + snprintf(tmp, sizeof(tmp), "%d", dec->imm); + append(buf, tmp, buflen); + break; + case 'o': + snprintf(tmp, sizeof(tmp), "%d", dec->imm); + append(buf, tmp, buflen); + while (strlen(buf) < tab * 2) { + append(buf, " ", buflen); + } + snprintf(tmp, sizeof(tmp), "# 0x%" PRIx64, + dec->pc + dec->imm); + append(buf, tmp, buflen); + break; + case 'c': { + const char *name = csr_name(dec->imm & 0xfff); + if (name) { + append(buf, name, buflen); + } else { + snprintf(tmp, sizeof(tmp), "0x%03x", dec->imm & 0xfff); + append(buf, tmp, buflen); + } + break; + } + case 'r': + switch (dec->rm) { + case rv_rm_rne: + append(buf, "rne", buflen); + break; + case rv_rm_rtz: + append(buf, "rtz", buflen); + break; + case rv_rm_rdn: + append(buf, "rdn", buflen); + break; + case rv_rm_rup: + append(buf, "rup", buflen); + break; + case rv_rm_rmm: + append(buf, "rmm", buflen); + break; + case rv_rm_dyn: + append(buf, "dyn", buflen); + break; + default: + append(buf, "inv", buflen); + break; + } + break; + case 'p': + if (dec->pred & rv_fence_i) { + append(buf, "i", buflen); + } + if (dec->pred & rv_fence_o) { + append(buf, "o", buflen); + } + if (dec->pred & rv_fence_r) { + append(buf, "r", buflen); + } + if (dec->pred & rv_fence_w) { + append(buf, "w", buflen); + } + break; + case 's': + if (dec->succ & rv_fence_i) { + append(buf, "i", buflen); + } + if (dec->succ & rv_fence_o) { + append(buf, "o", buflen); + } + if (dec->succ & rv_fence_r) { + append(buf, "r", buflen); + } + if (dec->succ & rv_fence_w) { + append(buf, "w", buflen); + } + break; + case '\t': + while (strlen(buf) < tab) { + append(buf, " ", buflen); + } + break; + case 'A': + if (dec->aq) { + append(buf, ".aq", buflen); + } + break; + case 'R': + if (dec->rl) { + append(buf, ".rl", buflen); + } + break; + default: + break; + } + fmt++; + } +} + +/* lift instruction to pseudo-instruction */ + +static void decode_inst_lift_pseudo(rv_decode *dec) +{ + const rv_comp_data *comp_data = opcode_data[dec->op].pseudo; + if (!comp_data) { + return; + } + while (comp_data->constraints) { + if (check_constraints(dec, comp_data->constraints)) { + dec->op = comp_data->op; + dec->codec = opcode_data[dec->op].codec; + return; + } + comp_data++; + } +} + +/* decompress instruction */ + +static void decode_inst_decompress_rv32(rv_decode *dec) +{ + int decomp_op = opcode_data[dec->op].decomp_rv32; + if (decomp_op != rv_op_illegal) { + dec->op = decomp_op; + dec->codec = opcode_data[decomp_op].codec; + } +} + +static void decode_inst_decompress_rv64(rv_decode *dec) +{ + int decomp_op = opcode_data[dec->op].decomp_rv64; + if (decomp_op != rv_op_illegal) { + dec->op = decomp_op; + dec->codec = opcode_data[decomp_op].codec; + } +} + +static void decode_inst_decompress_rv128(rv_decode *dec) +{ + int decomp_op = opcode_data[dec->op].decomp_rv128; + if (decomp_op != rv_op_illegal) { + dec->op = decomp_op; + dec->codec = opcode_data[decomp_op].codec; + } +} + +static void decode_inst_decompress(rv_decode *dec, rv_isa isa) +{ + switch (isa) { + case rv32: + decode_inst_decompress_rv32(dec); + break; + case rv64: + decode_inst_decompress_rv64(dec); + break; + case rv128: + decode_inst_decompress_rv128(dec); + break; + } +} + +/* disassemble instruction */ + +static void +disasm_inst(char *buf, size_t buflen, rv_isa isa, uint64_t pc, rv_inst inst) +{ + rv_decode dec = { 0 }; + dec.pc = pc; + dec.inst = inst; + decode_inst_opcode(&dec, isa); + decode_inst_operands(&dec); + decode_inst_decompress(&dec, isa); + decode_inst_lift_pseudo(&dec); + format_inst(buf, buflen, 16, &dec); +} + +static int +print_insn_riscv(bfd_vma memaddr, struct disassemble_info *info, rv_isa isa) +{ + char buf[128] = { 0 }; + bfd_byte packet[2]; + rv_inst inst = 0; + size_t len = 2; + bfd_vma n; + int status; + + /* Instructions are made of 2-byte packets in little-endian order */ + for (n = 0; n < len; n += 2) { + status = (*info->read_memory_func)(memaddr + n, packet, 2, info); + if (status != 0) { + /* Don't fail just because we fell off the end. */ + if (n > 0) { + break; + } + (*info->memory_error_func)(status, memaddr, info); + return status; + } + inst |= ((rv_inst) bfd_getl16(packet)) << (8 * n); + if (n == 0) { + len = inst_length(inst); + } + } + + disasm_inst(buf, sizeof(buf), isa, memaddr, inst); + (*info->fprintf_func)(info->stream, "%s", buf); + + return len; +} + +int print_insn_riscv32(bfd_vma memaddr, struct disassemble_info *info) +{ + return print_insn_riscv(memaddr, info, rv32); +} + +int print_insn_riscv64(bfd_vma memaddr, struct disassemble_info *info) +{ + return print_insn_riscv(memaddr, info, rv64); +} diff --git a/include/disas/bfd.h b/include/disas/bfd.h index 932453750c..1f69a6e9d3 100644 --- a/include/disas/bfd.h +++ b/include/disas/bfd.h @@ -429,6 +429,8 @@ int print_insn_lm32 (bfd_vma, disassemble_info*); int print_insn_big_nios2 (bfd_vma, disassemble_info*); int print_insn_little_nios2 (bfd_vma, disassemble_info*); int print_insn_xtensa (bfd_vma, disassemble_info*); +int print_insn_riscv32 (bfd_vma, disassemble_info*); +int print_insn_riscv64 (bfd_vma, disassemble_info*); #if 0 /* Fetch the disassembler for a given BFD, if that support is available. */ |