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 33 ASM_GLOBAL ASM_PFX(InternalMemCompareGuid) 34 ASM_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 50 0: 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 59 1: orrs r2, r2, r3 60 orrs r4, r4, r0 61 movs r0, #1 62 orrs r2, r2, r4 63 2: it ne 64 movne.n r0, #0 65 pop {r4, pc} 66
