mirror of https://github.com/acidanthera/audk.git
49 lines
903 B
NASM
49 lines
903 B
NASM
;
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; Copyright (c) 2016, Linaro Limited
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; All rights reserved.
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; SPDX-License-Identifier: BSD-2-Clause-Patent
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;
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EXPORT InternalMemCompareGuid
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THUMB
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AREA CompareGuid, CODE, READONLY, CODEALIGN, ALIGN=5
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InternalMemCompareGuid
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push {r4, lr}
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ldr r2, [r0]
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ldr r3, [r0, #4]
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ldr r4, [r0, #8]
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ldr r0, [r0, #12]
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cbz r1, L1
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ldr ip, [r1]
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ldr lr, [r1, #4]
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cmp r2, ip
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it eq
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cmpeq r3, lr
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beq L0
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movs r0, #0
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pop {r4, pc}
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L0
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ldr r2, [r1, #8]
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ldr r3, [r1, #12]
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cmp r4, r2
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it eq
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cmpeq r0, r3
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bne L2
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movs r0, #1
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pop {r4, pc}
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L1
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orrs r2, r2, r3
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orrs r4, r4, r0
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movs r0, #1
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orrs r2, r2, r4
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L2
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it ne
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movne r0, #0
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pop {r4, pc}
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END
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