Files
system76-edk2/MdePkg/Library/BaseMemoryLibOptDxe/Arm/CompareGuid.S
Michael D Kinney aa1b377e71 MdePkg/BaseMemoryLibOptDxe: Apply BSD-2-Clause-Patent
Change license to BSD-2-Clause-Patent using an
SPDX-License-Identifier statement.

Cc: Liming Gao <liming.gao@intel.com>
Cc: Leif Lindholm <leif@nuviainc.com>
Cc: Ard Biesheuvel <ard.biesheuvel@arm.com>
Signed-off-by: Michael D Kinney <michael.d.kinney@intel.com>
Reviewed-by: Leif Lindholm <leif@nuviainc.com>
Acked-by: Ard Biesheuvel <ard.biesheuvel@arm.com>
2020-08-06 20:20:40 +00:00

45 lines
942 B
ArmAsm

//
// Copyright (c) 2016, Linaro Limited
// All rights reserved.
// SPDX-License-Identifier: BSD-2-Clause-Patent
//
.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}