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qemu/disas/riscv.c
Wladimir J. van der Laan 2e3df911c5
disas/riscv: Fix rdinstreth constraint 
The constraint for `rdinstreth` was comparing the csr number to 0xc80,
which is `cycleh` instead. Fix this.

Signed-off-by: Wladimir J. van der Laan <laanwj@gmail.com>
Signed-off-by: Michael Clark <mjc@sifive.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Palmer Dabbelt <palmer@sifive.com>
Signed-off-by: Palmer Dabbelt <palmer@sifive.com>
2019-06-27 02:47:04 -07:00

2942 lines
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/*
* 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/dis-asm.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_rd_eq_ra,
rvc_rd_eq_x0,
rvc_rs1_eq_x0,
rvc_rs2_eq_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;
enum {
rvcd_imm_nz = 0x1
};
typedef struct {
const char * const name;
const rv_codec codec;
const char * const format;
const rv_comp_data *pseudo;
const short decomp_rv32;
const short decomp_rv64;
const short decomp_rv128;
const short decomp_data;
} 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_imm_eq_zero, 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_0xc82, 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, rvcd_imm_nz },
{ "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, rvcd_imm_nz },
{ "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, rvcd_imm_nz },
{ "c.lui", rv_codec_ci_lui, rv_fmt_rd_imm, NULL, rv_op_lui, rv_op_lui,
rv_op_lui, rvcd_imm_nz },
{ "c.srli", rv_codec_cb_sh6, rv_fmt_rd_rs1_imm, NULL, rv_op_srli,
rv_op_srli, rv_op_srli, rvcd_imm_nz },
{ "c.srai", rv_codec_cb_sh6, rv_fmt_rd_rs1_imm, NULL, rv_op_srai,
rv_op_srai, rv_op_srai, rvcd_imm_nz },
{ "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, rvcd_imm_nz },
{ "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_rd_eq_ra:
if (!(rd == 1)) {
return false;
}
break;
case rvc_rd_eq_x0:
if (!(rd == 0)) {
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_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;
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) {
if ((opcode_data[dec->op].decomp_data & rvcd_imm_nz)
&& dec->imm == 0) {
dec->op = rv_op_illegal;
} else {
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) {
if ((opcode_data[dec->op].decomp_data & rvcd_imm_nz)
&& dec->imm == 0) {
dec->op = rv_op_illegal;
} else {
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) {
if ((opcode_data[dec->op].decomp_data & rvcd_imm_nz)
&& dec->imm == 0) {
dec->op = rv_op_illegal;
} else {
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);
}
#define INST_FMT_2 "%04" PRIx64 " "
#define INST_FMT_4 "%08" PRIx64 " "
#define INST_FMT_6 "%012" PRIx64 " "
#define INST_FMT_8 "%016" PRIx64 " "
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);
}
}
switch (len) {
case 2:
(*info->fprintf_func)(info->stream, INST_FMT_2, inst);
break;
case 4:
(*info->fprintf_func)(info->stream, INST_FMT_4, inst);
break;
case 6:
(*info->fprintf_func)(info->stream, INST_FMT_6, inst);
break;
default:
(*info->fprintf_func)(info->stream, INST_FMT_8, inst);
break;
}
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);
}
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