audk/ArmPkg/Library/CompilerIntrinsicsLib/Arm/divdi3.S

50 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.
#
#------------------------------------------------------------------------------
.text
.align 2
GCC_ASM_EXPORT(__divdi3)
ASM_PFX(__divdi3):
@ args = 0, pretend = 0, frame = 0
@ frame_needed = 1, uses_anonymous_args = 0
stmfd sp!, {r4, r5, r7, lr}
mov r4, r3, asr #31
add r7, sp, #8
stmfd sp!, {r10, r11}
mov r10, r1, asr #31
sub sp, sp, #8
mov r11, r10
mov r5, r4
eor r0, r0, r10
eor r1, r1, r10
eor r2, r2, r4
eor r3, r3, r4
subs r2, r2, r4
sbc r3, r3, r5
mov ip, #0
subs r0, r0, r10
sbc r1, r1, r11
str ip, [sp, #0]
bl ASM_PFX(__udivmoddi4)
eor r2, r10, r4
eor r3, r10, r4
eor r0, r0, r2
eor r1, r1, r3
subs r0, r0, r2
sbc r1, r1, r3
sub sp, r7, #16
ldmfd sp!, {r10, r11}
ldmfd sp!, {r4, r5, r7, pc}