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decode: Store CL as register operand for shifts

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This commit is contained in:
Alexis Engelke
2020-02-19 16:53:59 +01:00
parent e65086c76c
commit 513a913feb
4 changed files with 24 additions and 18 deletions
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3
decode.c
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@@ -309,6 +309,7 @@ struct InstrDesc
#define DESC_IMM_CONTROL(desc) (((desc)->immediate >> 4) & 0x7)
#define DESC_IMM_IDX(desc) (((desc)->immediate & 3) ^ 3)
#define DESC_IMM_BYTE(desc) (((desc)->immediate >> 7) & 1)
#define DESC_IMPLICIT_VAL(desc) (((desc)->immediate >> 2) & 1)
int
fd_decode(const uint8_t* buffer, size_t len_sz, int mode_int, uintptr_t address,
@@ -465,7 +466,7 @@ fd_decode(const uint8_t* buffer, size_t len_sz, int mode_int, uintptr_t address,
{
FdOp* operand = &instr->operands[DESC_IMPLICIT_IDX(desc)];
operand->type = FD_OT_REG;
operand->reg = 0;
operand->reg = DESC_IMPLICIT_VAL(desc);
}
if (DESC_HAS_MODRM(desc))