diff options
Diffstat (limited to 'src/x86.c')
| -rw-r--r-- | src/x86.c | 4 |
1 files changed, 2 insertions, 2 deletions
@@ -25,7 +25,6 @@ static int mrmsib(const uchar *p, int addrlen) { // But it's confusingly-written enough that the code I wrote before didn't // work, so with any luck nobody will need to refer to it again and this is // actually correct now. Fingers crossed. - if ((*p & 0xC6) == 0x06) return 3; // special case for disp16 if (addrlen == 4 || *p & 0xC0) { int sib = addrlen == 4 && *p < 0xC0 && (*p & 7) == 4; switch (*p & 0xC0) { @@ -41,7 +40,7 @@ static int mrmsib(const uchar *p, int addrlen) { case 0x80: return 1 + addrlen + sib; } } - if (addrlen == 2 && *p == 0x26) return 3; + if (addrlen == 2 && (*p & 0xC7) == 0x06) return 3; return 1; // note: include the mrm itself in the byte count } @@ -66,6 +65,7 @@ P: X86_SEG_PREFIXES(CASES) X86_OPS_1BYTE_NO(CASES) return pfxlen + 1; X86_OPS_1BYTE_I8(CASES) operandlen = 1; X86_OPS_1BYTE_IW(CASES) return pfxlen + 1 + operandlen; + X86_OPS_1BYTE_IWI(CASES) return pfxlen + 1 + addrlen; X86_OPS_1BYTE_I16(CASES) return pfxlen + 3; X86_OPS_1BYTE_MRM(CASES) return pfxlen + 1 + mrmsib(insn + 1, addrlen); X86_OPS_1BYTE_MRM_I8(CASES) operandlen = 1; |