From 0fb90682e7103d7f75c17b1b86595eb7f1f49d25 Mon Sep 17 00:00:00 2001
From: qwang12 <qwang12@6f19259b-4bc3-4df7-8a09-765794883524>
Date: Mon, 21 Jul 2008 05:57:04 +0000
Subject: Use ebp as frame buffer in DivU64x32. Fix a typo in GetPowerOfTwo.

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@5532 6f19259b-4bc3-4df7-8a09-765794883524
---
 .../Foundation/Library/EfiCommonLib/Ia32/DivU64x32.asm      | 13 +++++++++----
 .../Foundation/Library/EfiCommonLib/Ia32/GetPowerOfTwo.asm  |  4 ++--
 2 files changed, 11 insertions(+), 6 deletions(-)

(limited to 'EdkCompatibilityPkg/Foundation/Library/EfiCommonLib')

diff --git a/EdkCompatibilityPkg/Foundation/Library/EfiCommonLib/Ia32/DivU64x32.asm b/EdkCompatibilityPkg/Foundation/Library/EfiCommonLib/Ia32/DivU64x32.asm
index 6e5d71e009..afe58667d6 100644
--- a/EdkCompatibilityPkg/Foundation/Library/EfiCommonLib/Ia32/DivU64x32.asm
+++ b/EdkCompatibilityPkg/Foundation/Library/EfiCommonLib/Ia32/DivU64x32.asm
@@ -56,27 +56,32 @@
 ;---------------------------------------------------------------------------
 
 DivU64x32 PROC
+    push ebp
+    mov ebp, esp
     xor edx, edx                    ; Clear EDX
 
-    mov eax, [esp + 8]              ; Put high 32 bits of 64-bit dividend in EAX
-    mov ecx, [esp + 12]             ; Put 32 bits divisor in ECX
+    mov eax, [ebp + 0Ch]              ; Put high 32 bits of 64-bit dividend in EAX
+    mov ecx, [ebp + 10h]            ; Put 32 bits divisor in ECX
     div ecx                         ; Dividend   Divisor  Quoitent...Remainder
                                     ;  0:EAX  /  ECX   =  EAX      EDX   
 
     push eax                        ; Push quoitent in stack
 
-    mov eax, [esp + 4]              ; Put low 32 bits of 64-bit dividend in EAX              
+    mov eax, [ebp + 8]              ; Put low 32 bits of 64-bit dividend in EAX              
     div ecx                         ; Leave the REMAINDER in EDX as High 32-bit of new dividend
                                     ; Dividend   Divisor  Quoitent...Remainder              
                                     ;  EDX:EAX  /  ECX   =  EAX      EDX               
 
-    mov ecx, [esp + 16]             ; Put &REMAINDER to ecx
+    mov ecx, [ebp + 14h]             ; Put &REMAINDER to ecx
 
     jecxz Label1                    ; If ecx == 0, no remainder exist, return with quoitent in EDX directly 
     mov dword ptr [ecx], edx        ; Put EDX through REMAINDER pointer in ECX 
 
 Label1:
     pop edx                         ; Pop High 32-bit QUOITENT to EDX
+    pop ebp
+
+    ret
 
 DivU64x32 ENDP
     END
diff --git a/EdkCompatibilityPkg/Foundation/Library/EfiCommonLib/Ia32/GetPowerOfTwo.asm b/EdkCompatibilityPkg/Foundation/Library/EfiCommonLib/Ia32/GetPowerOfTwo.asm
index 2d7b6de7a3..af009c7a7a 100644
--- a/EdkCompatibilityPkg/Foundation/Library/EfiCommonLib/Ia32/GetPowerOfTwo.asm
+++ b/EdkCompatibilityPkg/Foundation/Library/EfiCommonLib/Ia32/GetPowerOfTwo.asm
@@ -47,7 +47,7 @@
 ;  two and less than Input
 ;
 ;--*/
-GetPowerOfTow PROC
+GetPowerOfTwo PROC
     xor     eax, eax
     mov     edx, eax
     mov     ecx, [esp + 8] ; dword ptr Input[4]
@@ -63,5 +63,5 @@ _F:
 _Exit:
 
     ret
-GetPowerOfTow  ENDP
+GetPowerOfTwo  ENDP
 	END
-- 
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