diff --git a/EdkCompatibilityPkg/Foundation/Library/EfiCommonLib/Ia32/Power10U64.c b/EdkCompatibilityPkg/Foundation/Library/EfiCommonLib/Ia32/Power10U64.c
index e8e1652db2..1310290afb 100644
--- a/EdkCompatibilityPkg/Foundation/Library/EfiCommonLib/Ia32/Power10U64.c
+++ b/EdkCompatibilityPkg/Foundation/Library/EfiCommonLib/Ia32/Power10U64.c
@@ -50,6 +50,8 @@ Returns:
 --*/
 {
   __asm {
+  mov    eax, dword ptr Operand[0]
+  mov    edx, dword ptr Operand[4]
   mov    ecx, Power
   jcxz   _Power10U64_Done
   
@@ -58,6 +60,7 @@ _Power10U64_Wend:
   push   dword ptr Operand[4]
   push   dword ptr Operand[0]
   call   MultU64x32
+  add    esp, 0Ch
   mov    dword ptr Operand[0], eax
   mov    dword ptr Operand[4], edx
   loop   _Power10U64_Wend