From 509a1bf56e08d2755b57a6f8fa4c4237169abeaf Mon Sep 17 00:00:00 2001
From: ptitSeb <sebastien.chev@gmail.com>
Date: Mon, 29 Mar 2021 17:24:32 +0200
Subject: Try to sistematicaly erase upper RAX on cmpxchg opcode

---
 src/emu/x64run0f.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

(limited to 'src')

diff --git a/src/emu/x64run0f.c b/src/emu/x64run0f.c
index 667dbb1f..048e1a40 100644
--- a/src/emu/x64run0f.c
+++ b/src/emu/x64run0f.c
@@ -684,13 +684,12 @@ int Run0F(x64emu_t *emu, rex_t rex)
                 }
             } else {
                 cmp32(emu, R_EAX, ED->dword[0]);
+                R_RAX = ED->dword[0];   // to erase upper part of RAX
                 if(ACCESS_FLAG(F_ZF)) {
                     if(MODREG)
                         ED->q[0] = GD->dword[0];
                     else
                         ED->dword[0] = GD->dword[0];
-                } else {
-                    R_RAX = ED->dword[0];
                 }
             }
             break;
-- 
cgit 1.4.1