From e04adf2b8d3d9c3af09cfd50cc9bca604bca009c Mon Sep 17 00:00:00 2001
From: flobernd <flobernd@users.noreply.github.com>
Date: Sat, 24 Jun 2017 03:02:03 +0200
Subject: [PATCH] Fixed semantic decoding of EIP/RIP-relative displacements

---
 src/Decoder.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/Decoder.c b/src/Decoder.c
index cd0b99e..33df2cd 100644
--- a/src/Decoder.c
+++ b/src/Decoder.c
@@ -1272,7 +1272,7 @@ static ZydisStatus ZydisDecodeOperandMemory(ZydisDecoderContext* context,
         switch (info->details.modrm.mod)
         {
         case 0:
-            if (modrm_rm == 5)
+            if ((modrm_rm & 0x07) == 5)
             {
                 if (context->decoder->machineMode == 64)
                 {
@@ -1327,7 +1327,7 @@ static ZydisStatus ZydisDecodeOperandMemory(ZydisDecoderContext* context,
         switch (info->details.modrm.mod)
         {
         case 0:
-            if (modrm_rm == 5)
+            if ((modrm_rm & 0x07) == 5)
             {
                 operand->mem.base = ZYDIS_REGISTER_RIP;
                 displacementSize = 32;