Inline ASM in .c file is specific to MS tool-chain. Other tool-chain (such as Intel compiler) may not support it. Add in .asm files to make these function to be built by Assembler so that they are avaliable too for other tool-chain.

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@5529 6f19259b-4bc3-4df7-8a09-765794883524

EdkCompatibilityPkg/Foundation/Library/EfiCommonLib/Ia32/DivU64x32.asm

@@ -0,0 +1,82 @@
+;---------------------------------------------------------------------------
+;/*++
+;
+;Copyright (c) 2006, 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        
+;http://opensource.org/licenses/bsd-license.php                                            
+;                                                                                          
+;THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,                     
+;WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.             
+;
+;Module Name:
+;
+;  DivU64x32.c
+;
+;Abstract:
+;
+;  64-bit division function for IA-32
+;
+;--*/
+
+;---------------------------------------------------------------------------
+    .386
+    .model  flat,C
+    .code
+
+;---------------------------------------------------------------------------
+;UINT64
+;DivU64x32 (
+;  IN UINT64   Dividend,
+;  IN UINTN    Divisor,
+;  OUT UINTN   *Remainder OPTIONAL
+;  )
+;/*++
+
+;Routine Description:
+
+;  This routine allows a 64 bit value to be divided with a 32 bit value returns 
+;  64bit result and the Remainder.
+;
+;Arguments:
+
+;  Dividend  - dividend
+;  Divisor   - divisor
+;  Remainder - buffer for remainder
+;  
+;Returns:
+
+;  Dividend  / Divisor
+;  Remainder = Dividend mod Divisor
+;  
+;N.B. only works for 31bit divisors!!
+;
+;--*/
+;---------------------------------------------------------------------------
+
+DivU64x32 PROC
+    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
+    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              
+    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
+
+    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
+
+DivU64x32 ENDP
+    END