X-Git-Url: https://git.proxmox.com/?a=blobdiff_plain;f=MdePkg%2FLibrary%2FBaseMemoryLibOptPei%2FX64%2FScanMem32.S;h=f863cfe4bb560bdf86f50282062082ed536df593;hb=1fef058f4b8fefc455bb171e4908c3e835b1b492;hp=9420725d5ea740d1174a2c68a84031b120392e5d;hpb=ba19956ac3c600eaeff1c90556457105032218d8;p=mirror_edk2.git

diff --git a/MdePkg/Library/BaseMemoryLibOptPei/X64/ScanMem32.S b/MdePkg/Library/BaseMemoryLibOptPei/X64/ScanMem32.S
index 9420725d5e..f863cfe4bb 100644
--- a/MdePkg/Library/BaseMemoryLibOptPei/X64/ScanMem32.S
+++ b/MdePkg/Library/BaseMemoryLibOptPei/X64/ScanMem32.S
@@ -3,7 +3,7 @@
 #
 #------------------------------------------------------------------------------
 #
-# Copyright (c) 2006 - 2008, Intel Corporation
+# Copyright (c) 2006 - 2009, Intel Corporation
 # All rights reserved. This program and the accompanying materials
 # are licensed and made available under the terms and conditions of the BSD License
 # which accompanies this distribution.  The full text of the license may be found at
@@ -42,16 +42,15 @@
 #   IN      UINT32                    Value
 #   );
 #------------------------------------------------------------------------------
-.intel_syntax noprefix
 ASM_GLOBAL ASM_PFX(InternalMemScanMem32)
 ASM_PFX(InternalMemScanMem32):
-    push    rdi
-    mov     rdi, rcx
-    mov     rax, r8
-    mov     rcx, rdx
-    repne   scasd
-    lea     rax, [rdi - 4]
-    cmovnz  rax, rcx
-    pop     rdi
+    pushq   %rdi
+    movq    %rcx, %rdi
+    movq    %rdx, %rcx
+    movq    %r8, %rax
+    repne   scasl
+    leaq    -4(%rdi), %rax
+    cmovnz  %rcx, %rax                    # set rax to 0 if not found
+    popq    %rdi
     ret