blob: e025b22c2d278fe8869cbffdc15c8abba7090094 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
|
;------------------------------------------------------------------------------
;
; 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
|
