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decode: Change REP flag values

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The new values allow for a more optimizable computation of the required
flags from the decoded prefix.
This commit is contained in:
Alexis Engelke
2023-03-24 14:00:14 +01:00
parent 538708cd21
commit 0a36604c81
2 changed files with 3 additions and 6 deletions
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5
decode.c
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@@ -349,10 +349,7 @@ direct:
instr->type = desc->type; instr->type = desc->type;
instr->addrsz = addr_size; instr->addrsz = addr_size;
instr->flags = prefix_rep == 0xf3 ? FD_FLAG_REP : instr->flags = ((prefix_rep + 1) & 6) + (mode == DECODE_64 ? FD_FLAG_64 : 0);
prefix_rep == 0xf2 ? FD_FLAG_REPNZ : 0;
if (mode == DECODE_64)
instr->flags |= FD_FLAG_64;
instr->address = address; instr->address = address;
for (unsigned i = 0; i < sizeof(instr->operands) / sizeof(FdOp); i++) for (unsigned i = 0; i < sizeof(instr->operands) / sizeof(FdOp); i++)

4
fadec.h
View File

@@ -37,8 +37,8 @@ typedef enum {
/** Internal use only. **/ /** Internal use only. **/
enum { enum {
FD_FLAG_LOCK = 1 << 0, FD_FLAG_LOCK = 1 << 0,
FD_FLAG_REP = 1 << 1, FD_FLAG_REP = 1 << 2,
FD_FLAG_REPNZ = 1 << 2, FD_FLAG_REPNZ = 1 << 1,
FD_FLAG_64 = 1 << 7, FD_FLAG_64 = 1 << 7,
}; };