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#------------------------------------------------------------------------------
#
# 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(__udivmoddi4)
ASM_PFX(__udivmoddi4):
stmfd sp!, {r4, r5, r6, r7, lr}
add r7, sp, #12
stmfd sp!, {r10, r11}
sub sp, sp, #20
stmia sp, {r2-r3}
ldr r6, [sp, #48]
orrs r2, r2, r3
mov r10, r0
mov r11, r1
beq L2
subs ip, r1, #0
bne L4
cmp r3, #0
bne L6
cmp r6, #0
beq L8
mov r1, r2
bl ASM_PFX(__umodsi3)
mov r1, #0
stmia r6, {r0-r1}
L8:
ldr r1, [sp, #0]
mov r0, r10
b L45
L6:
cmp r6, #0
movne r1, #0
stmneia r6, {r0-r1}
b L2
L4:
ldr r1, [sp, #0]
cmp r1, #0
bne L12
ldr r2, [sp, #4]
cmp r2, #0
bne L14
cmp r6, #0
beq L16
mov r1, r2
mov r0, r11
bl ASM_PFX(__umodsi3)
mov r1, #0
stmia r6, {r0-r1}
L16:
ldr r1, [sp, #4]
mov r0, r11
L45:
bl ASM_PFX(__udivsi3)
L46:
mov r10, r0
mov r11, #0
b L10
L14:
subs r1, r0, #0
bne L18
cmp r6, #0
beq L16
ldr r1, [sp, #4]
mov r0, r11
bl ASM_PFX(__umodsi3)
mov r4, r10
mov r5, r0
stmia r6, {r4-r5}
b L16
L18:
sub r3, r2, #1
tst r2, r3
bne L22
cmp r6, #0
movne r4, r0
andne r5, ip, r3
stmneia r6, {r4-r5}
L24:
rsb r3, r2, #0
and r3, r2, r3
clz r3, r3
rsb r3, r3, #31
mov r0, ip, lsr r3
b L46
L22:
clz r2, r2
clz r3, ip
rsb r3, r3, r2
cmp r3, #30
bhi L48
rsb r2, r3, #31
add lr, r3, #1
mov r3, r1, asl r2
str r3, [sp, #12]
mov r3, r1, lsr lr
ldr r0, [sp, #0]
mov r5, ip, lsr lr
orr r4, r3, ip, asl r2
str r0, [sp, #8]
b L29
L12:
ldr r3, [sp, #4]
cmp r3, #0
bne L30
sub r3, r1, #1
tst r1, r3
bne L32
cmp r6, #0
andne r3, r3, r0
movne r2, r3
movne r3, #0
stmneia r6, {r2-r3}
L34:
cmp r1, #1
beq L10
rsb r3, r1, #0
and r3, r1, r3
clz r3, r3
rsb r0, r3, #31
mov r1, ip, lsr r0
rsb r3, r0, #32
mov r0, r10, lsr r0
orr ip, r0, ip, asl r3
str r1, [sp, #12]
str ip, [sp, #8]
ldrd r10, [sp, #8]
b L10
L32:
clz r2, r1
clz r3, ip
rsb r3, r3, r2
rsb r4, r3, #31
mov r2, r0, asl r4
mvn r1, r3
and r2, r2, r1, asr #31
add lr, r3, #33
str r2, [sp, #8]
add r2, r3, #1
mov r3, r3, asr #31
and r0, r3, r0, asl r1
mov r3, r10, lsr r2
orr r3, r3, ip, asl r4
and r3, r3, r1, asr #31
orr r0, r0, r3
mov r3, ip, lsr lr
str r0, [sp, #12]
mov r0, r10, lsr lr
and r5, r3, r2, asr #31
rsb r3, lr, #31
mov r3, r3, asr #31
orr r0, r0, ip, asl r1
and r3, r3, ip, lsr r2
and r0, r0, r2, asr #31
orr r4, r3, r0
b L29
L30:
clz r2, r3
clz r3, ip
rsb r3, r3, r2
cmp r3, #31
bls L37
L48:
cmp r6, #0
stmneia r6, {r10-r11}
b L2
L37:
rsb r1, r3, #31
mov r0, r0, asl r1
add lr, r3, #1
mov r2, #0
str r0, [sp, #12]
mov r0, r10, lsr lr
str r2, [sp, #8]
sub r2, r3, #31
and r0, r0, r2, asr #31
mov r3, ip, lsr lr
orr r4, r0, ip, asl r1
and r5, r3, r2, asr #31
L29:
mov ip, #0
mov r10, ip
b L40
L41:
ldr r1, [sp, #12]
ldr r2, [sp, #8]
mov r3, r4, lsr #31
orr r5, r3, r5, asl #1
mov r3, r1, lsr #31
orr r4, r3, r4, asl #1
mov r3, r2, lsr #31
orr r0, r3, r1, asl #1
orr r1, ip, r2, asl #1
ldmia sp, {r2-r3}
str r0, [sp, #12]
subs r2, r2, r4
sbc r3, r3, r5
str r1, [sp, #8]
subs r0, r2, #1
sbc r1, r3, #0
mov r2, r1, asr #31
ldmia sp, {r0-r1}
mov r3, r2
and ip, r2, #1
and r3, r3, r1
and r2, r2, r0
subs r4, r4, r2
sbc r5, r5, r3
add r10, r10, #1
L40:
cmp r10, lr
bne L41
ldrd r0, [sp, #8]
adds r0, r0, r0
adc r1, r1, r1
cmp r6, #0
orr r10, r0, ip
mov r11, r1
stmneia r6, {r4-r5}
b L10
L2:
mov r10, #0
mov r11, #0
L10:
mov r0, r10
mov r1, r11
sub sp, r7, #20
ldmfd sp!, {r10, r11}
ldmfd sp!, {r4, r5, r6, r7, pc}
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