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| #------------------------------------------------------------------------------
| #
| # Copyright (c) 2008 - 2009, Apple Inc. All rights reserved.<BR>
| #
| # SPDX-License-Identifier: BSD-2-Clause-Patent
| #
| #------------------------------------------------------------------------------
|
| #include <AsmMacroIoLib.h>
|
| .syntax unified
|
| ASM_FUNC(__udivsi3)
| cmp r1, #0
| cmpne r0, #0
| stmfd sp!, {r4, r5, r7, lr}
| add r7, sp, #8
| beq L2
| clz r2, r1
| clz r3, r0
| rsb r3, r3, r2
| cmp r3, #31
| bhi L2
| ldmfdeq sp!, {r4, r5, r7, pc}
| add r5, r3, #1
| rsb r3, r3, #31
| mov lr, #0
| mov r2, r0, asl r3
| mov ip, r0, lsr r5
| mov r4, lr
| b L8
| L9:
| mov r0, r2, lsr #31
| orr ip, r0, ip, asl #1
| orr r2, r3, lr
| rsb r3, ip, r1
| sub r3, r3, #1
| and r0, r1, r3, asr #31
| mov lr, r3, lsr #31
| rsb ip, r0, ip
| add r4, r4, #1
| L8:
| cmp r4, r5
| mov r3, r2, asl #1
| bne L9
| orr r0, r3, lr
| ldmfd sp!, {r4, r5, r7, pc}
| L2:
| mov r0, #0
| ldmfd sp!, {r4, r5, r7, pc}
|
|
|
