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zydis
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Fixed semantic decoding of EIP/RIP-relative displacements

This commit is contained in:
flobernd 2017-06-24 03:02:03 +02:00
parent 83ea3bc2c8
commit e04adf2b8d
1 changed files with 2 additions and 2 deletions
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4
src/Decoder.c
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@ -1272,7 +1272,7 @@ static ZydisStatus ZydisDecodeOperandMemory(ZydisDecoderContext* context,
switch (info->details.modrm.mod) switch (info->details.modrm.mod)
{ {
case 0: case 0:
if (modrm_rm == 5) if ((modrm_rm & 0x07) == 5)
{ {
if (context->decoder->machineMode == 64) if (context->decoder->machineMode == 64)
{ {
@ -1327,7 +1327,7 @@ static ZydisStatus ZydisDecodeOperandMemory(ZydisDecoderContext* context,
switch (info->details.modrm.mod) switch (info->details.modrm.mod)
{ {
case 0: case 0:
if (modrm_rm == 5) if ((modrm_rm & 0x07) == 5)
{ {
operand->mem.base = ZYDIS_REGISTER_RIP; operand->mem.base = ZYDIS_REGISTER_RIP;
displacementSize = 32; displacementSize = 32;