From 7687cc639535cbb9ff71758a12cd2cde8ced5ccc Mon Sep 17 00:00:00 2001
From: kobalicek <kobalicek.petr@gmail.com>
Date: Fri, 6 Mar 2020 21:06:09 +0100
Subject: [PATCH] [Bug] Fixed 'lock xadd [mem, reg]' instruction

---
 src/asmjit/x86/x86assembler.cpp | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/asmjit/x86/x86assembler.cpp b/src/asmjit/x86/x86assembler.cpp
index 89c2b52..4b18d3e 100644
--- a/src/asmjit/x86/x86assembler.cpp
+++ b/src/asmjit/x86/x86assembler.cpp
@@ -2140,7 +2140,10 @@ CaseX86PushPop_Gp:
         opReg = o1.id();
         rmRel = &o0;
 
-        FIXUP_GPB(o1, opReg);
+        if (o1.size() == 1) {
+          FIXUP_GPB(o1, opReg);
+        }
+
         goto EmitX86M;
       }
       break;