2019-03-13 13:53:29 +01:00
|
|
|
@ This file is part of Luma3DS
|
2020-04-25 14:26:21 +02:00
|
|
|
@ Copyright (C) 2016-2020 Aurora Wright, TuxSH
|
2019-03-13 13:53:29 +01:00
|
|
|
@
|
|
|
|
|
@ This program is free software: you can redistribute it and/or modify
|
|
|
|
|
@ it under the terms of the GNU General Public License as published by
|
|
|
|
|
@ the Free Software Foundation, either version 3 of the License, or
|
|
|
|
|
@ (at your option) any later version.
|
|
|
|
|
@
|
|
|
|
|
@ This program is distributed in the hope that it will be useful,
|
|
|
|
|
@ but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
|
|
|
@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
|
|
|
@ GNU General Public License for more details.
|
|
|
|
|
@
|
|
|
|
|
@ You should have received a copy of the GNU General Public License
|
|
|
|
|
@ along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
|
|
|
@
|
|
|
|
|
@ Additional Terms 7.b and 7.c of GPLv3 apply to this file:
|
|
|
|
|
@ * Requiring preservation of specified reasonable legal notices or
|
|
|
|
|
@ author attributions in that material or in the Appropriate Legal
|
|
|
|
|
@ Notices displayed by works containing it.
|
|
|
|
|
@ * Prohibiting misrepresentation of the origin of that material,
|
|
|
|
|
@ or requiring that modified versions of such material be marked in
|
|
|
|
|
@ reasonable ways as different from the original version.
|
|
|
|
|
|
|
|
|
|
.section .text.alignedseqmemcpy, "ax", %progbits
|
|
|
|
|
.arm
|
|
|
|
|
@ Align on cache line boundaries & make sure the loops don't cross them.
|
|
|
|
|
.align 5
|
|
|
|
|
.global alignedseqmemcpy
|
|
|
|
|
.type alignedseqmemcpy, %function
|
|
|
|
|
alignedseqmemcpy:
|
|
|
|
|
@ src=r1 and dst=r0 are expected to be 4-byte-aligned
|
|
|
|
|
push {r4-r10, lr}
|
|
|
|
|
|
|
|
|
|
lsrs r12, r2, #5
|
|
|
|
|
sub r2, r2, r12, lsl #5
|
|
|
|
|
beq 2f
|
|
|
|
|
|
|
|
|
|
1:
|
|
|
|
|
ldmia r1!, {r3-r10}
|
|
|
|
|
stmia r0!, {r3-r10}
|
|
|
|
|
subs r12, #1
|
|
|
|
|
bne 1b
|
|
|
|
|
|
|
|
|
|
2:
|
|
|
|
|
lsrs r12, r2, #2
|
|
|
|
|
sub r2, r2, r12, lsl #2
|
|
|
|
|
beq 4f
|
|
|
|
|
|
|
|
|
|
3:
|
|
|
|
|
ldr r3, [r1], #4
|
|
|
|
|
str r3, [r0], #4
|
|
|
|
|
subs r12, #1
|
|
|
|
|
bne 3b
|
|
|
|
|
|
|
|
|
|
4:
|
|
|
|
|
tst r2, #2
|
|
|
|
|
ldrneh r3, [r1], #2
|
|
|
|
|
strneh r3, [r0], #2
|
|
|
|
|
|
|
|
|
|
tst r2, #1
|
|
|
|
|
ldrneb r3, [r1], #1
|
|
|
|
|
strneb r3, [r0], #1
|
|
|
|
|
|
|
|
|
|
pop {r4-r10, pc}
|
