blob: d9eb8e9e11ffa093f18d3226552d2374ce22686e (
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
|
#------------------------------------------------------------------------------
#
# Copyright (c) 2006 - 2008, Intel Corporation. All rights reserved.<BR>
# 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.S
#
# Abstract:
#
# Set error flag for all division functions
#
#------------------------------------------------------------------------------
ASM_GLOBAL ASM_PFX(InternalMathDivRemU64x32)
#------------------------------------------------------------------------------
# UINT64
# EFIAPI
# InternalMathDivRemU64x32 (
# IN UINT64 Dividend,
# IN UINT32 Divisor,
# OUT UINT32 *Remainder
# );
#------------------------------------------------------------------------------
ASM_PFX(InternalMathDivRemU64x32):
movl 12(%esp), %ecx # ecx <- divisor
movl 8(%esp), %eax # eax <- dividend[32..63]
xorl %edx, %edx
divl %ecx # eax <- quotient[32..63], edx <- remainder
push %eax
movl 8(%esp), %eax # eax <- dividend[0..31]
divl %ecx # eax <- quotient[0..31]
movl 20(%esp), %ecx # ecx <- Remainder
jecxz L1 # abandon remainder if Remainder == NULL
movl %edx, (%ecx)
L1:
pop %edx # edx <- quotient[32..63]
ret
|
