mirror of https://github.com/acidanthera/audk.git
52 lines
1.8 KiB
NASM
52 lines
1.8 KiB
NASM
|
;------------------------------------------------------------------------------
|
||
|
|
;
|
||
|
|
; 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:
|
||
|
|
;
|
||
|
|
; DivError.asm
|
||
|
|
;
|
||
|
|
; Abstract:
|
||
|
|
;
|
||
|
|
; Set error flag for all division functions
|
||
|
|
;
|
||
|
|
;------------------------------------------------------------------------------
|
||
|
|
|
||
|
|
.386
|
||
|
|
.model flat,C
|
||
|
|
.code
|
||
|
|
|
||
|
;------------------------------------------------------------------------------
|
||
|
|
; UINT64
|
||
|
|
; EFIAPI
|
||
|
|
; InternalMathDivRemU64x32 (
|
||
|
|
; IN UINT64 Dividend,
|
||
|
|
; IN UINT32 Divisor,
|
||
|
|
; OUT UINT32 *Remainder
|
||
|
|
; );
|
||
|
|
;------------------------------------------------------------------------------
|
||
|
|
InternalMathDivRemU64x32 PROC
|
||
|
|
mov ecx, [esp + 12] ; ecx <- divisor
|
||
|
|
mov eax, [esp + 8] ; eax <- dividend[32..63]
|
||
|
|
xor edx, edx
|
||
|
|
div ecx ; eax <- quotient[32..63], edx <- remainder
|
||
|
|
push eax
|
||
|
|
mov eax, [esp + 8] ; eax <- dividend[0..31]
|
||
|
|
div ecx ; eax <- quotient[0..31]
|
||
|
|
mov ecx, [esp + 20] ; ecx <- Remainder
|
||
|
|
jecxz @F ; abandon remainder if Remainder == NULL
|
||
|
|
mov [ecx], edx
|
||
|
|
@@:
|
||
|
|
pop edx ; edx <- quotient[32..63]
|
||
|
|
ret
|
||
|
|
InternalMathDivRemU64x32 ENDP
|
||
|
|
|
||
|
|
END
|