mirror of
https://github.com/CloverHackyColor/CloverBootloader.git
synced 2024-11-23 11:35:19 +01:00
67 lines
2.4 KiB
ArmAsm
67 lines
2.4 KiB
ArmAsm
//
|
|
// Copyright (c) 2016, Linaro Limited
|
|
// All rights reserved.
|
|
//
|
|
// Redistribution and use in source and binary forms, with or without
|
|
// modification, are permitted provided that the following conditions are met:
|
|
// * Redistributions of source code must retain the above copyright
|
|
// notice, this list of conditions and the following disclaimer.
|
|
// * Redistributions in binary form must reproduce the above copyright
|
|
// notice, this list of conditions and the following disclaimer in the
|
|
// documentation and/or other materials provided with the distribution.
|
|
// * Neither the name of the Linaro nor the
|
|
// names of its contributors may be used to endorse or promote products
|
|
// derived from this software without specific prior written permission.
|
|
//
|
|
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
|
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
|
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
|
|
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
|
|
// HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
|
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
|
|
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
|
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
|
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
|
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
|
|
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
//
|
|
|
|
.text
|
|
.thumb
|
|
.syntax unified
|
|
.align 5
|
|
.type ASM_PFX(InternalMemCompareGuid), %function
|
|
ASM_GLOBAL ASM_PFX(InternalMemCompareGuid)
|
|
ASM_PFX(InternalMemCompareGuid):
|
|
push {r4, lr}
|
|
ldr r2, [r0]
|
|
ldr r3, [r0, #4]
|
|
ldr r4, [r0, #8]
|
|
ldr r0, [r0, #12]
|
|
cbz r1, 1f
|
|
ldr ip, [r1]
|
|
ldr lr, [r1, #4]
|
|
cmp r2, ip
|
|
it eq
|
|
cmpeq.n r3, lr
|
|
beq 0f
|
|
movs r0, #0
|
|
pop {r4, pc}
|
|
|
|
0: ldr r2, [r1, #8]
|
|
ldr r3, [r1, #12]
|
|
cmp r4, r2
|
|
it eq
|
|
cmpeq.n r0, r3
|
|
bne 2f
|
|
movs r0, #1
|
|
pop {r4, pc}
|
|
|
|
1: orrs r2, r2, r3
|
|
orrs r4, r4, r0
|
|
movs r0, #1
|
|
orrs r2, r2, r4
|
|
2: it ne
|
|
movne.n r0, #0
|
|
pop {r4, pc}
|