1#------------------------------------------------------------------------------
2#
3# Copyright (c) 2006 - 2008, Intel Corporation. All rights reserved.<BR>
4# This program and the accompanying materials
5# are licensed and made available under the terms and conditions of the BSD License
6# which accompanies this distribution.  The full text of the license may be found at
7# http://opensource.org/licenses/bsd-license.php.
8#
9# THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
10# WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
11#
12# Module Name:
13#
14#   DivError.S
15#
16# Abstract:
17#
18#   Set error flag for all division functions
19#
20#------------------------------------------------------------------------------
21
22ASM_GLOBAL ASM_PFX(InternalMathDivRemU64x32)
23
24#------------------------------------------------------------------------------
25# UINT64
26# EFIAPI
27# InternalMathDivRemU64x32 (
28#   IN      UINT64                    Dividend,
29#   IN      UINT32                    Divisor,
30#   OUT     UINT32                    *Remainder
31#   );
32#------------------------------------------------------------------------------
33ASM_PFX(InternalMathDivRemU64x32):
34    movl    12(%esp), %ecx          # ecx <- divisor
35    movl    8(%esp), %eax           # eax <- dividend[32..63]
36    xorl    %edx, %edx
37    divl    %ecx                    # eax <- quotient[32..63], edx <- remainder
38    push    %eax
39    movl    8(%esp), %eax           # eax <- dividend[0..31]
40    divl    %ecx                    # eax <- quotient[0..31]
41    movl    20(%esp), %ecx          # ecx <- Remainder
42    jecxz   L1                      # abandon remainder if Remainder == NULL
43    movl    %edx, (%ecx)
44L1:
45    pop     %edx                    # edx <- quotient[32..63]
46    ret
47