audk/ArmPkg/Library/CompilerIntrinsicsLib/Arm/moddi3.S

45 lines
1.3 KiB
ArmAsm

#------------------------------------------------------------------------------
#
# Copyright (c) 2008 - 2009, Apple Inc. 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.
#
#------------------------------------------------------------------------------
#include <AsmMacroIoLib.h>
ASM_FUNC(__moddi3)
stmfd sp!, {r4, r5, r7, lr}
mov r4, r1, asr #31
add r7, sp, #8
stmfd sp!, {r10, r11}
mov r10, r3, asr #31
sub sp, sp, #16
mov r5, r4
mov r11, r10
eor r0, r0, r4
eor r1, r1, r4
eor r2, r2, r10
eor r3, r3, r10
add ip, sp, #8
subs r0, r0, r4
sbc r1, r1, r5
subs r2, r2, r10
sbc r3, r3, r11
str ip, [sp, #0]
bl ASM_PFX(__udivmoddi4)
ldrd r0, [sp, #8]
eor r0, r0, r4
eor r1, r1, r4
subs r0, r0, r4
sbc r1, r1, r5
sub sp, r7, #16
ldmfd sp!, {r10, r11}
ldmfd sp!, {r4, r5, r7, pc}