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71 lines
2.3 KiB
71 lines
2.3 KiB
4 years ago
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; Copyright (c) 2016, Linaro Limited
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; All rights reserved.
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;
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; Redistribution and use in source and binary forms, with or without
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; modification, are permitted provided that the following conditions are met:
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; * Redistributions of source code must retain the above copyright
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; notice, this list of conditions and the following disclaimer.
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; * Redistributions in binary form must reproduce the above copyright
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; notice, this list of conditions and the following disclaimer in the
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; documentation and/or other materials provided with the distribution.
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; * Neither the name of the Linaro nor the
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; names of its contributors may be used to endorse or promote products
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; derived from this software without specific prior written permission.
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;
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; THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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; "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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; LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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; A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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; HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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; SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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; LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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; DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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; THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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; (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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; OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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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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