mirror of https://github.com/acidanthera/audk.git
243 lines
4.6 KiB
ArmAsm
243 lines
4.6 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>
|
|
|
|
.syntax unified
|
|
|
|
ASM_FUNC(__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
|
|
stmiane 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
|
|
stmiane 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
|
|
stmiane 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
|
|
stmiane 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
|
|
stmiane 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}
|