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disas/riscv: Add rv_codec_vror_vi for vror.vi

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Add rv_codec_vror_vi for the vector crypto instruction - vror.vi.
The rotate amount of vror.vi is defined by combining seperated bits.

Signed-off-by: Max Chou <max.chou@sifive.com>
Acked-by: Alistair Francis <alistair.francis@wdc.com>
Message-ID: <20231026151828.754279-13-max.chou@sifive.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
This commit is contained in:
Max Chou 2023-10-26 23:18:19 +08:00 committed by Alistair Francis
parent ea363626ff
commit 434c609bef
2 changed files with 14 additions and 1 deletions
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14
disas/riscv.c
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@ -4011,6 +4011,12 @@ static uint32_t operand_vzimm10(rv_inst inst)
return (inst << 34) >> 54;
}
static uint32_t operand_vzimm6(rv_inst inst)
{
return ((inst << 37) >> 63) << 5 |
((inst << 44) >> 59);
}
static uint32_t operand_bs(rv_inst inst)
{
return (inst << 32) >> 62;
@ -4393,6 +4399,12 @@ static void decode_inst_operands(rv_decode *dec, rv_isa isa)
dec->imm = operand_vimm(inst);
dec->vm = operand_vm(inst);
break;
case rv_codec_vror_vi:
dec->rd = operand_rd(inst);
dec->rs2 = operand_rs2(inst);
dec->imm = operand_vzimm6(inst);
dec->vm = operand_vm(inst);
break;
case rv_codec_vsetvli:
dec->rd = operand_rd(inst);
dec->rs1 = operand_rs1(inst);
@ -4677,7 +4689,7 @@ static void format_inst(char *buf, size_t buflen, size_t tab, rv_decode *dec)
append(buf, tmp, buflen);
break;
case 'u':
snprintf(tmp, sizeof(tmp), "%u", ((uint32_t)dec->imm & 0b11111));
snprintf(tmp, sizeof(tmp), "%u", ((uint32_t)dec->imm & 0b111111));
append(buf, tmp, buflen);
break;
case 'j':

1
disas/riscv.h
View File

@ -152,6 +152,7 @@ typedef enum {
rv_codec_v_i,
rv_codec_vsetvli,
rv_codec_vsetivli,
rv_codec_vror_vi,
rv_codec_zcb_ext,
rv_codec_zcb_mul,
rv_codec_zcb_lb,