1// 2// Copyright (c) 2016, Linaro Limited 3// All rights reserved. 4// 5// Redistribution and use in source and binary forms, with or without 6// modification, are permitted provided that the following conditions are met: 7// * Redistributions of source code must retain the above copyright 8// notice, this list of conditions and the following disclaimer. 9// * Redistributions in binary form must reproduce the above copyright 10// notice, this list of conditions and the following disclaimer in the 11// documentation and/or other materials provided with the distribution. 12// * Neither the name of the Linaro nor the 13// names of its contributors may be used to endorse or promote products 14// derived from this software without specific prior written permission. 15// 16// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 17// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 18// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 19// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 20// HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 21// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 22// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 26// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27// 28 29 .text 30 .thumb 31 .syntax unified 32 .align 5 33ASM_GLOBAL ASM_PFX(InternalMemCompareGuid) 34ASM_PFX(InternalMemCompareGuid): 35 push {r4, lr} 36 ldr r2, [r0] 37 ldr r3, [r0, #4] 38 ldr r4, [r0, #8] 39 ldr r0, [r0, #12] 40 cbz r1, 1f 41 ldr ip, [r1] 42 ldr lr, [r1, #4] 43 cmp r2, ip 44 it eq 45 cmpeq.n r3, lr 46 beq 0f 47 movs r0, #0 48 pop {r4, pc} 49 500: ldr r2, [r1, #8] 51 ldr r3, [r1, #12] 52 cmp r4, r2 53 it eq 54 cmpeq.n r0, r3 55 bne 2f 56 movs r0, #1 57 pop {r4, pc} 58 591: orrs r2, r2, r3 60 orrs r4, r4, r0 61 movs r0, #1 62 orrs r2, r2, r4 632: it ne 64 movne.n r0, #0 65 pop {r4, pc} 66