Moved the MdePkg to OldMdePkg so that new code in MdePkg does not break existing...

[mirror_edk2.git] / OldMdePkg / Library / BaseLib / Ia32 / MultU64x32.asm

;------------------------------------------------------------------------------\r
;\r
; Copyright (c) 2006, Intel Corporation\r
; All rights reserved. This program and the accompanying materials\r
; are licensed and made available under the terms and conditions of the BSD License\r
; which accompanies this distribution.  The full text of the license may be found at\r
; http://opensource.org/licenses/bsd-license.php\r
;\r
; THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
; WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
;\r
; Module Name:\r
;\r
;   MultU64x32.asm\r
;\r
; Abstract:\r
;\r
;   Calculate the product of a 64-bit integer and a 32-bit integer\r
;\r
;------------------------------------------------------------------------------\r
\r
    .386\r
    .model  flat,C\r
    .code\r
\r
;------------------------------------------------------------------------------\r
; UINT64\r
; EFIAPI\r
; InternalMathMultU64x32 (\r
;   IN      UINT64                    Multiplicand,\r
;   IN      UINT32                    Multiplier\r
;   );\r
;------------------------------------------------------------------------------\r
InternalMathMultU64x32  PROC\r
    mov     ecx, [esp + 12]\r
    mov     eax, ecx\r
    imul    ecx, [esp + 8]              ; overflow not detectable\r
    mul     dword ptr [esp + 4]\r
    add     edx, ecx\r
    ret\r
InternalMathMultU64x32  ENDP\r
\r
    END\r