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//
// 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}
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