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qemu/disas/riscv.c

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RISC-V Disassembler The RISC-V disassembler has no dependencies outside of the 'disas' directory so it can be applied independently. The majority of the disassembler is machine-generated from instruction set metadata: - https://github.com/michaeljclark/riscv-meta Expected checkpatch errors for consistency and brevity reasons: ERROR: line over 90 characters ERROR: trailing statements should be on next line ERROR: space prohibited between function name and open parenthesis '(' Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Michael Clark <mjc@sifive.com>
2018-03-02 15:31:10 +03:00
/*
* 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"
disas: Rename include/disas/bfd.h back to include/disas/dis-asm.h Commit dc99065b5f9 (v0.1.0) added dis-asm.h from binutils. Commit 43d4145a986 (v0.1.5) inlined bfd.h into dis-asm.h to remove the dependency on binutils. Commit 76cad71136b (v1.4.0) moved dis-asm.h to include/disas/bfd.h. The new name is confusing when you try to match against (pre GPLv3+) binutils. Rename it back. Keep it in the same directory, of course. Cc: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Markus Armbruster <armbru@redhat.com> Message-Id: <20190417191805.28198-17-armbru@redhat.com> Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2019-04-17 22:18:04 +03:00
#include "disas/dis-asm.h"
RISC-V Disassembler The RISC-V disassembler has no dependencies outside of the 'disas' directory so it can be applied independently. The majority of the disassembler is machine-generated from instruction set metadata: - https://github.com/michaeljclark/riscv-meta Expected checkpatch errors for consistency and brevity reasons: ERROR: line over 90 characters ERROR: trailing statements should be on next line ERROR: space prohibited between function name and open parenthesis '(' Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Michael Clark <mjc@sifive.com>
2018-03-02 15:31:10 +03:00
/* 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,
disas/riscv: Add Zb[abcs] instructions With the addition of Zb[abcs], we also need to add disassembler support for these new instructions. Signed-off-by: Philipp Tomsich <philipp.tomsich@vrull.eu> Acked-by: Alistair Francis <alistair.francis@wdc.com> Message-id: 20210911140016.834071-17-philipp.tomsich@vrull.eu Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2021-09-11 17:00:16 +03:00
rv_op_bseti = 319,
rv_op_bclri = 320,
rv_op_binvi = 321,
rv_op_bexti = 322,
rv_op_rori = 323,
rv_op_clz = 324,
rv_op_ctz = 325,
rv_op_cpop = 326,
rv_op_sext_h = 327,
rv_op_sext_b = 328,
rv_op_xnor = 329,
rv_op_orn = 330,
rv_op_andn = 331,
rv_op_rol = 332,
rv_op_ror = 333,
rv_op_sh1add = 334,
rv_op_sh2add = 335,
rv_op_sh3add = 336,
rv_op_sh1add_uw = 337,
rv_op_sh2add_uw = 338,
rv_op_sh3add_uw = 339,
rv_op_clmul = 340,
rv_op_clmulr = 341,
rv_op_clmulh = 342,
rv_op_min = 343,
rv_op_minu = 344,
rv_op_max = 345,
rv_op_maxu = 346,
rv_op_clzw = 347,
rv_op_ctzw = 348,
rv_op_cpopw = 349,
rv_op_slli_uw = 350,
rv_op_add_uw = 351,
rv_op_rolw = 352,
rv_op_rorw = 353,
rv_op_rev8 = 354,
rv_op_zext_h = 355,
rv_op_roriw = 356,
rv_op_orc_b = 357,
rv_op_bset = 358,
rv_op_bclr = 359,
rv_op_binv = 360,
rv_op_bext = 361,
RISC-V Disassembler The RISC-V disassembler has no dependencies outside of the 'disas' directory so it can be applied independently. The majority of the disassembler is machine-generated from instruction set metadata: - https://github.com/michaeljclark/riscv-meta Expected checkpatch errors for consistency and brevity reasons: ERROR: line over 90 characters ERROR: trailing statements should be on next line ERROR: space prohibited between function name and open parenthesis '(' Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Michael Clark <mjc@sifive.com>
2018-03-02 15:31:10 +03:00
} 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;
disas/riscv: Disassemble reserved compressed encodings as illegal Due to the design of the disassembler, the immediate is not known during decoding of the opcode; so to handle compressed encodings with reserved immediate values (non-zero), we need to add an additional check during decompression to match reserved encodings with zero immediates and translate them into the illegal instruction. The following compressed opcodes have reserved encodings with zero immediates: c.addi4spn, c.addi, c.lui, c.addi16sp, c.srli, c.srai, c.andi and c.slli Signed-off-by: Michael Clark <mjc@sifive.com> Signed-off-by: Alistair Francis <alistair.francis@wdc.com> [Palmer: Broke long lines] Reviewed-by: Palmer Dabbelt <palmer@sifive.com> Signed-off-by: Palmer Dabbelt <palmer@sifive.com>
2019-06-25 02:42:33 +03:00
enum {
rvcd_imm_nz = 0x1
};
RISC-V Disassembler The RISC-V disassembler has no dependencies outside of the 'disas' directory so it can be applied independently. The majority of the disassembler is machine-generated from instruction set metadata: - https://github.com/michaeljclark/riscv-meta Expected checkpatch errors for consistency and brevity reasons: ERROR: line over 90 characters ERROR: trailing statements should be on next line ERROR: space prohibited between function name and open parenthesis '(' Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Michael Clark <mjc@sifive.com>
2018-03-02 15:31:10 +03:00
typedef struct {
const char * const name;
const rv_codec codec;
const char * const format;
const rv_comp_data *pseudo;
disas/riscv: Disassemble reserved compressed encodings as illegal Due to the design of the disassembler, the immediate is not known during decoding of the opcode; so to handle compressed encodings with reserved immediate values (non-zero), we need to add an additional check during decompression to match reserved encodings with zero immediates and translate them into the illegal instruction. The following compressed opcodes have reserved encodings with zero immediates: c.addi4spn, c.addi, c.lui, c.addi16sp, c.srli, c.srai, c.andi and c.slli Signed-off-by: Michael Clark <mjc@sifive.com> Signed-off-by: Alistair Francis <alistair.francis@wdc.com> [Palmer: Broke long lines] Reviewed-by: Palmer Dabbelt <palmer@sifive.com> Signed-off-by: Palmer Dabbelt <palmer@sifive.com>
2019-06-25 02:42:33 +03:00
const short decomp_rv32;
const short decomp_rv64;
const short decomp_rv128;
const short decomp_data;
RISC-V Disassembler The RISC-V disassembler has no dependencies outside of the 'disas' directory so it can be applied independently. The majority of the disassembler is machine-generated from instruction set metadata: - https://github.com/michaeljclark/riscv-meta Expected checkpatch errors for consistency and brevity reasons: ERROR: line over 90 characters ERROR: trailing statements should be on next line ERROR: space prohibited between function name and open parenthesis '(' Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Michael Clark <mjc@sifive.com>
2018-03-02 15:31:10 +03:00
} 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 };
RISC-V: Fix incorrect disassembly for addiw This fixes a bug in the disassembler constraints used to lift instructions into pseudo-instructions, whereby addiw instructions are always lifted to sext.w instead of just lifting addiw with a zero immediate. An associated fix has been made to the metadata used to machine generate the disseasembler: https://github.com/michaeljclark/riscv-meta/ commit/4a6b2f3898430768acfe201405224d2ea31e1477 Cc: Sagar Karandikar <sagark@eecs.berkeley.edu> Cc: Bastian Koppelmann <kbastian@mail.uni-paderborn.de> Cc: Palmer Dabbelt <palmer@sifive.com> Cc: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Michael Clark <mjc@sifive.com> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
2018-03-23 11:07:01 +03:00
static const rvc_constraint rvcc_sext_w[] = { rvc_imm_eq_zero, rvc_end };
RISC-V Disassembler The RISC-V disassembler has no dependencies outside of the 'disas' directory so it can be applied independently. The majority of the disassembler is machine-generated from instruction set metadata: - https://github.com/michaeljclark/riscv-meta Expected checkpatch errors for consistency and brevity reasons: ERROR: line over 90 characters ERROR: trailing statements should be on next line ERROR: space prohibited between function name and open parenthesis '(' Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Michael Clark <mjc@sifive.com>
2018-03-02 15:31:10 +03:00
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 };
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 12:34:54 +03:00
static const rvc_constraint rvcc_rdinstreth[] = { rvc_rs1_eq_x0,
rvc_csr_eq_0xc82, rvc_end };
RISC-V Disassembler The RISC-V disassembler has no dependencies outside of the 'disas' directory so it can be applied independently. The majority of the disassembler is machine-generated from instruction set metadata: - https://github.com/michaeljclark/riscv-meta Expected checkpatch errors for consistency and brevity reasons: ERROR: line over 90 characters ERROR: trailing statements should be on next line ERROR: space prohibited between function name and open parenthesis '(' Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Michael Clark <mjc@sifive.com>
2018-03-02 15:31:10 +03:00
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 },
disas/riscv: Disassemble reserved compressed encodings as illegal Due to the design of the disassembler, the immediate is not known during decoding of the opcode; so to handle compressed encodings with reserved immediate values (non-zero), we need to add an additional check during decompression to match reserved encodings with zero immediates and translate them into the illegal instruction. The following compressed opcodes have reserved encodings with zero immediates: c.addi4spn, c.addi, c.lui, c.addi16sp, c.srli, c.srai, c.andi and c.slli Signed-off-by: Michael Clark <mjc@sifive.com> Signed-off-by: Alistair Francis <alistair.francis@wdc.com> [Palmer: Broke long lines] Reviewed-by: Palmer Dabbelt <palmer@sifive.com> Signed-off-by: Palmer Dabbelt <palmer@sifive.com>
2019-06-25 02:42:33 +03:00
{ "c.addi4spn", rv_codec_ciw_4spn, rv_fmt_rd_rs1_imm, NULL, rv_op_addi,
rv_op_addi, rv_op_addi, rvcd_imm_nz },
RISC-V Disassembler The RISC-V disassembler has no dependencies outside of the 'disas' directory so it can be applied independently. The majority of the disassembler is machine-generated from instruction set metadata: - https://github.com/michaeljclark/riscv-meta Expected checkpatch errors for consistency and brevity reasons: ERROR: line over 90 characters ERROR: trailing statements should be on next line ERROR: space prohibited between function name and open parenthesis '(' Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Michael Clark <mjc@sifive.com>
2018-03-02 15:31:10 +03:00
{ "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 },
disas/riscv: Disassemble reserved compressed encodings as illegal Due to the design of the disassembler, the immediate is not known during decoding of the opcode; so to handle compressed encodings with reserved immediate values (non-zero), we need to add an additional check during decompression to match reserved encodings with zero immediates and translate them into the illegal instruction. The following compressed opcodes have reserved encodings with zero immediates: c.addi4spn, c.addi, c.lui, c.addi16sp, c.srli, c.srai, c.andi and c.slli Signed-off-by: Michael Clark <mjc@sifive.com> Signed-off-by: Alistair Francis <alistair.francis@wdc.com> [Palmer: Broke long lines] Reviewed-by: Palmer Dabbelt <palmer@sifive.com> Signed-off-by: Palmer Dabbelt <palmer@sifive.com>
2019-06-25 02:42:33 +03:00
{ "c.addi", rv_codec_ci, rv_fmt_rd_rs1_imm, NULL, rv_op_addi, rv_op_addi,
rv_op_addi, rvcd_imm_nz },
RISC-V Disassembler The RISC-V disassembler has no dependencies outside of the 'disas' directory so it can be applied independently. The majority of the disassembler is machine-generated from instruction set metadata: - https://github.com/michaeljclark/riscv-meta Expected checkpatch errors for consistency and brevity reasons: ERROR: line over 90 characters ERROR: trailing statements should be on next line ERROR: space prohibited between function name and open parenthesis '(' Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Michael Clark <mjc@sifive.com>
2018-03-02 15:31:10 +03:00
{ "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 },
disas/riscv: Disassemble reserved compressed encodings as illegal Due to the design of the disassembler, the immediate is not known during decoding of the opcode; so to handle compressed encodings with reserved immediate values (non-zero), we need to add an additional check during decompression to match reserved encodings with zero immediates and translate them into the illegal instruction. The following compressed opcodes have reserved encodings with zero immediates: c.addi4spn, c.addi, c.lui, c.addi16sp, c.srli, c.srai, c.andi and c.slli Signed-off-by: Michael Clark <mjc@sifive.com> Signed-off-by: Alistair Francis <alistair.francis@wdc.com> [Palmer: Broke long lines] Reviewed-by: Palmer Dabbelt <palmer@sifive.com> Signed-off-by: Palmer Dabbelt <palmer@sifive.com>
2019-06-25 02:42:33 +03:00
{ "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,
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 12:34:54 +03:00
rv_op_andi, rv_op_andi },
RISC-V Disassembler The RISC-V disassembler has no dependencies outside of the 'disas' directory so it can be applied independently. The majority of the disassembler is machine-generated from instruction set metadata: - https://github.com/michaeljclark/riscv-meta Expected checkpatch errors for consistency and brevity reasons: ERROR: line over 90 characters ERROR: trailing statements should be on next line ERROR: space prohibited between function name and open parenthesis '(' Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Michael Clark <mjc@sifive.com>
2018-03-02 15:31:10 +03:00
{ "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 },
disas/riscv: Disassemble reserved compressed encodings as illegal Due to the design of the disassembler, the immediate is not known during decoding of the opcode; so to handle compressed encodings with reserved immediate values (non-zero), we need to add an additional check during decompression to match reserved encodings with zero immediates and translate them into the illegal instruction. The following compressed opcodes have reserved encodings with zero immediates: c.addi4spn, c.addi, c.lui, c.addi16sp, c.srli, c.srai, c.andi and c.slli Signed-off-by: Michael Clark <mjc@sifive.com> Signed-off-by: Alistair Francis <alistair.francis@wdc.com> [Palmer: Broke long lines] Reviewed-by: Palmer Dabbelt <palmer@sifive.com> Signed-off-by: Palmer Dabbelt <palmer@sifive.com>
2019-06-25 02:42:33 +03:00
{ "c.slli", rv_codec_ci_sh6, rv_fmt_rd_rs1_imm, NULL, rv_op_slli,
rv_op_slli, rv_op_slli, rvcd_imm_nz },
RISC-V Disassembler The RISC-V disassembler has no dependencies outside of the 'disas' directory so it can be applied independently. The majority of the disassembler is machine-generated from instruction set metadata: - https://github.com/michaeljclark/riscv-meta Expected checkpatch errors for consistency and brevity reasons: ERROR: line over 90 characters ERROR: trailing statements should be on next line ERROR: space prohibited between function name and open parenthesis '(' Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Michael Clark <mjc@sifive.com>
2018-03-02 15:31:10 +03:00
{ "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 },
disas/riscv: Add Zb[abcs] instructions With the addition of Zb[abcs], we also need to add disassembler support for these new instructions. Signed-off-by: Philipp Tomsich <philipp.tomsich@vrull.eu> Acked-by: Alistair Francis <alistair.francis@wdc.com> Message-id: 20210911140016.834071-17-philipp.tomsich@vrull.eu Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2021-09-11 17:00:16 +03:00
{ "bseti", rv_codec_i_sh7, rv_fmt_rd_rs1_imm, NULL, 0, 0, 0 },
{ "bclri", rv_codec_i_sh7, rv_fmt_rd_rs1_imm, NULL, 0, 0, 0 },
{ "binvi", rv_codec_i_sh7, rv_fmt_rd_rs1_imm, NULL, 0, 0, 0 },
{ "bexti", rv_codec_i_sh7, rv_fmt_rd_rs1_imm, NULL, 0, 0, 0 },
{ "rori", rv_codec_i_sh7, rv_fmt_rd_rs1_imm, NULL, 0, 0, 0 },
{ "clz", rv_codec_r, rv_fmt_rd_rs1, NULL, 0, 0, 0 },
{ "ctz", rv_codec_r, rv_fmt_rd_rs1, NULL, 0, 0, 0 },
{ "cpop", rv_codec_r, rv_fmt_rd_rs1, NULL, 0, 0, 0 },
{ "sext.h", rv_codec_r, rv_fmt_rd_rs1, NULL, 0, 0, 0 },
{ "sext.b", rv_codec_r, rv_fmt_rd_rs1, NULL, 0, 0, 0 },
{ "xnor", rv_codec_r, rv_fmt_rd_rs1, NULL, 0, 0, 0 },
{ "orn", rv_codec_r, rv_fmt_rd_rs1, NULL, 0, 0, 0 },
{ "andn", rv_codec_r, rv_fmt_rd_rs1, NULL, 0, 0, 0 },
{ "rol", rv_codec_r, rv_fmt_rd_rs1_rs2, NULL, 0, 0, 0 },
{ "ror", rv_codec_r, rv_fmt_rd_rs1_rs2, NULL, 0, 0, 0 },
{ "sh1add", rv_codec_r, rv_fmt_rd_rs1_rs2, NULL, 0, 0, 0 },
{ "sh2add", rv_codec_r, rv_fmt_rd_rs1_rs2, NULL, 0, 0, 0 },
{ "sh3add", rv_codec_r, rv_fmt_rd_rs1_rs2, NULL, 0, 0, 0 },
{ "sh1add.uw", rv_codec_r, rv_fmt_rd_rs1_rs2, NULL, 0, 0, 0 },
{ "sh2add.uw", rv_codec_r, rv_fmt_rd_rs1_rs2, NULL, 0, 0, 0 },
{ "sh3add.uw", rv_codec_r, rv_fmt_rd_rs1_rs2, NULL, 0, 0, 0 },
{ "clmul", rv_codec_r, rv_fmt_rd_rs1_rs2, NULL, 0, 0, 0 },
{ "clmulr", rv_codec_r, rv_fmt_rd_rs1_rs2, NULL, 0, 0, 0 },
{ "clmulh", rv_codec_r, rv_fmt_rd_rs1_rs2, NULL, 0, 0, 0 },
{ "min", rv_codec_r, rv_fmt_rd_rs1_rs2, NULL, 0, 0, 0 },
{ "minu", rv_codec_r, rv_fmt_rd_rs1_rs2, NULL, 0, 0, 0 },
{ "max", rv_codec_r, rv_fmt_rd_rs1_rs2, NULL, 0, 0, 0 },
{ "maxu", rv_codec_r, rv_fmt_rd_rs1_rs2, NULL, 0, 0, 0 },
{ "clzw", rv_codec_r, rv_fmt_rd_rs1, NULL, 0, 0, 0 },
{ "clzw", rv_codec_r, rv_fmt_rd_rs1, NULL, 0, 0, 0 },
{ "cpopw", rv_codec_r, rv_fmt_rd_rs1, NULL, 0, 0, 0 },
{ "slli.uw", rv_codec_r, rv_fmt_rd_rs1_rs2, NULL, 0, 0, 0 },
{ "add.uw", rv_codec_r, rv_fmt_rd_rs1_rs2, NULL, 0, 0, 0 },
{ "rolw", rv_codec_r, rv_fmt_rd_rs1_rs2, NULL, 0, 0, 0 },
{ "rorw", rv_codec_r, rv_fmt_rd_rs1_rs2, NULL, 0, 0, 0 },
{ "rev8", rv_codec_r, rv_fmt_rd_rs1, NULL, 0, 0, 0 },
{ "zext.h", rv_codec_r, rv_fmt_rd_rs1, NULL, 0, 0, 0 },
{ "roriw", rv_codec_i_sh5, rv_fmt_rd_rs1_imm, NULL, 0, 0, 0 },
{ "orc.b", rv_codec_r, rv_fmt_rd_rs1, NULL, 0, 0, 0 },
{ "bset", rv_codec_r, rv_fmt_rd_rs1_rs2, NULL, 0, 0, 0 },
{ "bclr", rv_codec_r, rv_fmt_rd_rs1_rs2, NULL, 0, 0, 0 },
{ "binv", rv_codec_r, rv_fmt_rd_rs1_rs2, NULL, 0, 0, 0 },
{ "bext", rv_codec_r, rv_fmt_rd_rs1_rs2, NULL, 0, 0, 0 },
RISC-V Disassembler The RISC-V disassembler has no dependencies outside of the 'disas' directory so it can be applied independently. The majority of the disassembler is machine-generated from instruction set metadata: - https://github.com/michaeljclark/riscv-meta Expected checkpatch errors for consistency and brevity reasons: ERROR: line over 90 characters ERROR: trailing statements should be on next line ERROR: space prohibited between function name and open parenthesis '(' Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Michael Clark <mjc@sifive.com>
2018-03-02 15:31:10 +03:00
};
/* 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 {
RISC-V: Fix missing break statement in disassembler This fixes an issue when disassembling rv128 c.sqsp, where the code erroneously fell through to c.swsp. Cc: Palmer Dabbelt <palmer@sifive.com> Cc: Sagar Karandikar <sagark@eecs.berkeley.edu> Cc: Bastian Koppelmann <kbastian@mail.uni-paderborn.de> Cc: Alistair Francis <Alistair.Francis@wdc.com> Cc: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Michael Clark <mjc@sifive.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
2018-04-30 02:06:31 +03:00
op = rv_op_c_fsdsp;
RISC-V Disassembler The RISC-V disassembler has no dependencies outside of the 'disas' directory so it can be applied independently. The majority of the disassembler is machine-generated from instruction set metadata: - https://github.com/michaeljclark/riscv-meta Expected checkpatch errors for consistency and brevity reasons: ERROR: line over 90 characters ERROR: trailing statements should be on next line ERROR: space prohibited between function name and open parenthesis '(' Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Michael Clark <mjc@sifive.com>
2018-03-02 15:31:10 +03:00
}
RISC-V: Fix missing break statement in disassembler This fixes an issue when disassembling rv128 c.sqsp, where the code erroneously fell through to c.swsp. Cc: Palmer Dabbelt <palmer@sifive.com> Cc: Sagar Karandikar <sagark@eecs.berkeley.edu> Cc: Bastian Koppelmann <kbastian@mail.uni-paderborn.de> Cc: Alistair Francis <Alistair.Francis@wdc.com> Cc: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Michael Clark <mjc@sifive.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
2018-04-30 02:06:31 +03:00
break;
RISC-V Disassembler The RISC-V disassembler has no dependencies outside of the 'disas' directory so it can be applied independently. The majority of the disassembler is machine-generated from instruction set metadata: - https://github.com/michaeljclark/riscv-meta Expected checkpatch errors for consistency and brevity reasons: ERROR: line over 90 characters ERROR: trailing statements should be on next line ERROR: space prohibited between function name and open parenthesis '(' Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Michael Clark <mjc@sifive.com>
2018-03-02 15:31:10 +03:00
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)) {
disas/riscv: Add Zb[abcs] instructions With the addition of Zb[abcs], we also need to add disassembler support for these new instructions. Signed-off-by: Philipp Tomsich <philipp.tomsich@vrull.eu> Acked-by: Alistair Francis <alistair.francis@wdc.com> Message-id: 20210911140016.834071-17-philipp.tomsich@vrull.eu Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2021-09-11 17:00:16 +03:00
case 0b00000: op = rv_op_slli; break;
case 0b00101: op = rv_op_bseti; break;
case 0b01001: op = rv_op_bclri; break;
case 0b01101: op = rv_op_binvi; break;
case 0b01100:
switch (((inst >> 20) & 0b1111111)) {
case 0b0000000: op = rv_op_clz; break;
case 0b0000001: op = rv_op_ctz; break;
case 0b0000010: op = rv_op_cpop; break;
/* 0b0000011 */
case 0b0000100: op = rv_op_sext_b; break;
case 0b0000101: op = rv_op_sext_h; break;
}
break;
RISC-V Disassembler The RISC-V disassembler has no dependencies outside of the 'disas' directory so it can be applied independently. The majority of the disassembler is machine-generated from instruction set metadata: - https://github.com/michaeljclark/riscv-meta Expected checkpatch errors for consistency and brevity reasons: ERROR: line over 90 characters ERROR: trailing statements should be on next line ERROR: space prohibited between function name and open parenthesis '(' Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Michael Clark <mjc@sifive.com>
2018-03-02 15:31:10 +03:00
}
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)) {
disas/riscv: Add Zb[abcs] instructions With the addition of Zb[abcs], we also need to add disassembler support for these new instructions. Signed-off-by: Philipp Tomsich <philipp.tomsich@vrull.eu> Acked-by: Alistair Francis <alistair.francis@wdc.com> Message-id: 20210911140016.834071-17-philipp.tomsich@vrull.eu Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2021-09-11 17:00:16 +03:00
case 0b00000: op = rv_op_srli; break;
case 0b00101: op = rv_op_orc_b; break;
case 0b01000: op = rv_op_srai; break;
case 0b01001: op = rv_op_bexti; break;
case 0b01100: op = rv_op_rori; break;
case 0b01101:
switch ((inst >> 20) & 0b1111111) {
case 0b0111000: op = rv_op_rev8; break;
}
break;
RISC-V Disassembler The RISC-V disassembler has no dependencies outside of the 'disas' directory so it can be applied independently. The majority of the disassembler is machine-generated from instruction set metadata: - https://github.com/michaeljclark/riscv-meta Expected checkpatch errors for consistency and brevity reasons: ERROR: line over 90 characters ERROR: trailing statements should be on next line ERROR: space prohibited between function name and open parenthesis '(' Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Michael Clark <mjc@sifive.com>
2018-03-02 15:31:10 +03:00
}
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;
disas/riscv: Add Zb[abcs] instructions With the addition of Zb[abcs], we also need to add disassembler support for these new instructions. Signed-off-by: Philipp Tomsich <philipp.tomsich@vrull.eu> Acked-by: Alistair Francis <alistair.francis@wdc.com> Message-id: 20210911140016.834071-17-philipp.tomsich@vrull.eu Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2021-09-11 17:00:16 +03:00
case 4: op = rv_op_slli_uw; break;
case 48:
switch ((inst >> 20) & 0b11111) {
case 0b00000: op = rv_op_clzw; break;
case 0b00001: op = rv_op_ctzw; break;
case 0b00010: op = rv_op_cpopw; break;
}
break;
RISC-V Disassembler The RISC-V disassembler has no dependencies outside of the 'disas' directory so it can be applied independently. The majority of the disassembler is machine-generated from instruction set metadata: - https://github.com/michaeljclark/riscv-meta Expected checkpatch errors for consistency and brevity reasons: ERROR: line over 90 characters ERROR: trailing statements should be on next line ERROR: space prohibited between function name and open parenthesis '(' Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Michael Clark <mjc@sifive.com>
2018-03-02 15:31:10 +03:00
}
break;
case 5:
switch (((inst >> 25) & 0b1111111)) {
case 0: op = rv_op_srliw; break;
case 32: op = rv_op_sraiw; break;
disas/riscv: Add Zb[abcs] instructions With the addition of Zb[abcs], we also need to add disassembler support for these new instructions. Signed-off-by: Philipp Tomsich <philipp.tomsich@vrull.eu> Acked-by: Alistair Francis <alistair.francis@wdc.com> Message-id: 20210911140016.834071-17-philipp.tomsich@vrull.eu Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2021-09-11 17:00:16 +03:00
case 48: op = rv_op_roriw; break;
RISC-V Disassembler The RISC-V disassembler has no dependencies outside of the 'disas' directory so it can be applied independently. The majority of the disassembler is machine-generated from instruction set metadata: - https://github.com/michaeljclark/riscv-meta Expected checkpatch errors for consistency and brevity reasons: ERROR: line over 90 characters ERROR: trailing statements should be on next line ERROR: space prohibited between function name and open parenthesis '(' Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Michael Clark <mjc@sifive.com>
2018-03-02 15:31:10 +03:00
}
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;
disas/riscv: Add Zb[abcs] instructions With the addition of Zb[abcs], we also need to add disassembler support for these new instructions. Signed-off-by: Philipp Tomsich <philipp.tomsich@vrull.eu> Acked-by: Alistair Francis <alistair.francis@wdc.com> Message-id: 20210911140016.834071-17-philipp.tomsich@vrull.eu Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2021-09-11 17:00:16 +03:00
case 36:
switch ((inst >> 20) & 0b11111) {
case 0: op = rv_op_zext_h; break;
}
break;
case 41: op = rv_op_clmul; break;
case 42: op = rv_op_clmulr; break;
case 43: op = rv_op_clmulh; break;
case 44: op = rv_op_min; break;
case 45: op = rv_op_minu; break;
case 46: op = rv_op_max; break;
case 47: op = rv_op_maxu; break;
case 130: op = rv_op_sh1add; break;
case 132: op = rv_op_sh2add; break;
case 134: op = rv_op_sh3add; break;
case 161: op = rv_op_bset; break;
RISC-V Disassembler The RISC-V disassembler has no dependencies outside of the 'disas' directory so it can be applied independently. The majority of the disassembler is machine-generated from instruction set metadata: - https://github.com/michaeljclark/riscv-meta Expected checkpatch errors for consistency and brevity reasons: ERROR: line over 90 characters ERROR: trailing statements should be on next line ERROR: space prohibited between function name and open parenthesis '(' Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Michael Clark <mjc@sifive.com>
2018-03-02 15:31:10 +03:00
case 256: op = rv_op_sub; break;
disas/riscv: Add Zb[abcs] instructions With the addition of Zb[abcs], we also need to add disassembler support for these new instructions. Signed-off-by: Philipp Tomsich <philipp.tomsich@vrull.eu> Acked-by: Alistair Francis <alistair.francis@wdc.com> Message-id: 20210911140016.834071-17-philipp.tomsich@vrull.eu Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2021-09-11 17:00:16 +03:00
case 260: op = rv_op_xnor; break;
RISC-V Disassembler The RISC-V disassembler has no dependencies outside of the 'disas' directory so it can be applied independently. The majority of the disassembler is machine-generated from instruction set metadata: - https://github.com/michaeljclark/riscv-meta Expected checkpatch errors for consistency and brevity reasons: ERROR: line over 90 characters ERROR: trailing statements should be on next line ERROR: space prohibited between function name and open parenthesis '(' Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Michael Clark <mjc@sifive.com>
2018-03-02 15:31:10 +03:00
case 261: op = rv_op_sra; break;
disas/riscv: Add Zb[abcs] instructions With the addition of Zb[abcs], we also need to add disassembler support for these new instructions. Signed-off-by: Philipp Tomsich <philipp.tomsich@vrull.eu> Acked-by: Alistair Francis <alistair.francis@wdc.com> Message-id: 20210911140016.834071-17-philipp.tomsich@vrull.eu Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2021-09-11 17:00:16 +03:00
case 262: op = rv_op_orn; break;
case 263: op = rv_op_andn; break;
case 289: op = rv_op_bclr; break;
case 293: op = rv_op_bext; break;
case 385: op = rv_op_rol; break;
case 386: op = rv_op_ror; break;
case 417: op = rv_op_binv; break;
RISC-V Disassembler The RISC-V disassembler has no dependencies outside of the 'disas' directory so it can be applied independently. The majority of the disassembler is machine-generated from instruction set metadata: - https://github.com/michaeljclark/riscv-meta Expected checkpatch errors for consistency and brevity reasons: ERROR: line over 90 characters ERROR: trailing statements should be on next line ERROR: space prohibited between function name and open parenthesis '(' Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Michael Clark <mjc@sifive.com>
2018-03-02 15:31:10 +03:00
}
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;
disas/riscv: Add Zb[abcs] instructions With the addition of Zb[abcs], we also need to add disassembler support for these new instructions. Signed-off-by: Philipp Tomsich <philipp.tomsich@vrull.eu> Acked-by: Alistair Francis <alistair.francis@wdc.com> Message-id: 20210911140016.834071-17-philipp.tomsich@vrull.eu Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2021-09-11 17:00:16 +03:00
case 32: op = rv_op_add_uw; break;
case 36:
switch ((inst >> 20) & 0b11111) {
case 0: op = rv_op_zext_h; break;
}
break;
case 130: op = rv_op_sh1add_uw; break;
case 132: op = rv_op_sh2add_uw; break;
case 134: op = rv_op_sh3add_uw; break;
RISC-V Disassembler The RISC-V disassembler has no dependencies outside of the 'disas' directory so it can be applied independently. The majority of the disassembler is machine-generated from instruction set metadata: - https://github.com/michaeljclark/riscv-meta Expected checkpatch errors for consistency and brevity reasons: ERROR: line over 90 characters ERROR: trailing statements should be on next line ERROR: space prohibited between function name and open parenthesis '(' Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Michael Clark <mjc@sifive.com>
2018-03-02 15:31:10 +03:00
case 256: op = rv_op_subw; break;
case 261: op = rv_op_sraw; break;
disas/riscv: Add Zb[abcs] instructions With the addition of Zb[abcs], we also need to add disassembler support for these new instructions. Signed-off-by: Philipp Tomsich <philipp.tomsich@vrull.eu> Acked-by: Alistair Francis <alistair.francis@wdc.com> Message-id: 20210911140016.834071-17-philipp.tomsich@vrull.eu Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2021-09-11 17:00:16 +03:00
case 385: op = rv_op_rolw; break;
case 389: op = rv_op_rorw; break;
RISC-V Disassembler The RISC-V disassembler has no dependencies outside of the 'disas' directory so it can be applied independently. The majority of the disassembler is machine-generated from instruction set metadata: - https://github.com/michaeljclark/riscv-meta Expected checkpatch errors for consistency and brevity reasons: ERROR: line over 90 characters ERROR: trailing statements should be on next line ERROR: space prohibited between function name and open parenthesis '(' Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Michael Clark <mjc@sifive.com>
2018-03-02 15:31:10 +03:00
}
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) {
disas/riscv: Disassemble reserved compressed encodings as illegal Due to the design of the disassembler, the immediate is not known during decoding of the opcode; so to handle compressed encodings with reserved immediate values (non-zero), we need to add an additional check during decompression to match reserved encodings with zero immediates and translate them into the illegal instruction. The following compressed opcodes have reserved encodings with zero immediates: c.addi4spn, c.addi, c.lui, c.addi16sp, c.srli, c.srai, c.andi and c.slli Signed-off-by: Michael Clark <mjc@sifive.com> Signed-off-by: Alistair Francis <alistair.francis@wdc.com> [Palmer: Broke long lines] Reviewed-by: Palmer Dabbelt <palmer@sifive.com> Signed-off-by: Palmer Dabbelt <palmer@sifive.com>
2019-06-25 02:42:33 +03:00
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;
}
RISC-V Disassembler The RISC-V disassembler has no dependencies outside of the 'disas' directory so it can be applied independently. The majority of the disassembler is machine-generated from instruction set metadata: - https://github.com/michaeljclark/riscv-meta Expected checkpatch errors for consistency and brevity reasons: ERROR: line over 90 characters ERROR: trailing statements should be on next line ERROR: space prohibited between function name and open parenthesis '(' Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Michael Clark <mjc@sifive.com>
2018-03-02 15:31:10 +03:00
}
}
static void decode_inst_decompress_rv64(rv_decode *dec)
{
int decomp_op = opcode_data[dec->op].decomp_rv64;
if (decomp_op != rv_op_illegal) {
disas/riscv: Disassemble reserved compressed encodings as illegal Due to the design of the disassembler, the immediate is not known during decoding of the opcode; so to handle compressed encodings with reserved immediate values (non-zero), we need to add an additional check during decompression to match reserved encodings with zero immediates and translate them into the illegal instruction. The following compressed opcodes have reserved encodings with zero immediates: c.addi4spn, c.addi, c.lui, c.addi16sp, c.srli, c.srai, c.andi and c.slli Signed-off-by: Michael Clark <mjc@sifive.com> Signed-off-by: Alistair Francis <alistair.francis@wdc.com> [Palmer: Broke long lines] Reviewed-by: Palmer Dabbelt <palmer@sifive.com> Signed-off-by: Palmer Dabbelt <palmer@sifive.com>
2019-06-25 02:42:33 +03:00
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;
}
RISC-V Disassembler The RISC-V disassembler has no dependencies outside of the 'disas' directory so it can be applied independently. The majority of the disassembler is machine-generated from instruction set metadata: - https://github.com/michaeljclark/riscv-meta Expected checkpatch errors for consistency and brevity reasons: ERROR: line over 90 characters ERROR: trailing statements should be on next line ERROR: space prohibited between function name and open parenthesis '(' Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Michael Clark <mjc@sifive.com>
2018-03-02 15:31:10 +03:00
}
}
static void decode_inst_decompress_rv128(rv_decode *dec)
{
int decomp_op = opcode_data[dec->op].decomp_rv128;
if (decomp_op != rv_op_illegal) {
disas/riscv: Disassemble reserved compressed encodings as illegal Due to the design of the disassembler, the immediate is not known during decoding of the opcode; so to handle compressed encodings with reserved immediate values (non-zero), we need to add an additional check during decompression to match reserved encodings with zero immediates and translate them into the illegal instruction. The following compressed opcodes have reserved encodings with zero immediates: c.addi4spn, c.addi, c.lui, c.addi16sp, c.srli, c.srai, c.andi and c.slli Signed-off-by: Michael Clark <mjc@sifive.com> Signed-off-by: Alistair Francis <alistair.francis@wdc.com> [Palmer: Broke long lines] Reviewed-by: Palmer Dabbelt <palmer@sifive.com> Signed-off-by: Palmer Dabbelt <palmer@sifive.com>
2019-06-25 02:42:33 +03:00
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;
}
RISC-V Disassembler The RISC-V disassembler has no dependencies outside of the 'disas' directory so it can be applied independently. The majority of the disassembler is machine-generated from instruction set metadata: - https://github.com/michaeljclark/riscv-meta Expected checkpatch errors for consistency and brevity reasons: ERROR: line over 90 characters ERROR: trailing statements should be on next line ERROR: space prohibited between function name and open parenthesis '(' Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Michael Clark <mjc@sifive.com>
2018-03-02 15:31:10 +03:00
}
}
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);
}
RISC-V: Include instruction hex in disassembly This was added to help debug issues using -d in_asm. It is useful to see the instruction bytes, as one can detect if one is trying to execute ASCII or device-tree magic. Cc: Sagar Karandikar <sagark@eecs.berkeley.edu> Cc: Bastian Koppelmann <kbastian@mail.uni-paderborn.de> Signed-off-by: Michael Clark <mjc@sifive.com> Signed-off-by: Palmer Dabbelt <palmer@sifive.com> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
2018-03-04 03:50:12 +03:00
#define INST_FMT_2 "%04" PRIx64 " "
#define INST_FMT_4 "%08" PRIx64 " "
#define INST_FMT_6 "%012" PRIx64 " "
#define INST_FMT_8 "%016" PRIx64 " "
RISC-V Disassembler The RISC-V disassembler has no dependencies outside of the 'disas' directory so it can be applied independently. The majority of the disassembler is machine-generated from instruction set metadata: - https://github.com/michaeljclark/riscv-meta Expected checkpatch errors for consistency and brevity reasons: ERROR: line over 90 characters ERROR: trailing statements should be on next line ERROR: space prohibited between function name and open parenthesis '(' Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Michael Clark <mjc@sifive.com>
2018-03-02 15:31:10 +03:00
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);
}
}
RISC-V: Include instruction hex in disassembly This was added to help debug issues using -d in_asm. It is useful to see the instruction bytes, as one can detect if one is trying to execute ASCII or device-tree magic. Cc: Sagar Karandikar <sagark@eecs.berkeley.edu> Cc: Bastian Koppelmann <kbastian@mail.uni-paderborn.de> Signed-off-by: Michael Clark <mjc@sifive.com> Signed-off-by: Palmer Dabbelt <palmer@sifive.com> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
2018-03-04 03:50:12 +03:00
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;
}
RISC-V Disassembler The RISC-V disassembler has no dependencies outside of the 'disas' directory so it can be applied independently. The majority of the disassembler is machine-generated from instruction set metadata: - https://github.com/michaeljclark/riscv-meta Expected checkpatch errors for consistency and brevity reasons: ERROR: line over 90 characters ERROR: trailing statements should be on next line ERROR: space prohibited between function name and open parenthesis '(' Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Michael Clark <mjc@sifive.com>
2018-03-02 15:31:10 +03:00
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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