mirror of https://github.com/Qortal/Brooklyn
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
56 lines
691 B
56 lines
691 B
/* SPDX-License-Identifier: GPL-2.0 */ |
|
/* |
|
* arch/alpha/lib/ev6-clear_page.S |
|
* |
|
* Zero an entire page. |
|
*/ |
|
#include <asm/export.h> |
|
.text |
|
.align 4 |
|
.global clear_page |
|
.ent clear_page |
|
clear_page: |
|
.prologue 0 |
|
|
|
lda $0,128 |
|
lda $1,125 |
|
addq $16,64,$2 |
|
addq $16,128,$3 |
|
|
|
addq $16,192,$17 |
|
wh64 ($16) |
|
wh64 ($2) |
|
wh64 ($3) |
|
|
|
1: wh64 ($17) |
|
stq $31,0($16) |
|
subq $0,1,$0 |
|
subq $1,1,$1 |
|
|
|
stq $31,8($16) |
|
stq $31,16($16) |
|
addq $17,64,$2 |
|
nop |
|
|
|
stq $31,24($16) |
|
stq $31,32($16) |
|
cmovgt $1,$2,$17 |
|
nop |
|
|
|
stq $31,40($16) |
|
stq $31,48($16) |
|
nop |
|
nop |
|
|
|
stq $31,56($16) |
|
addq $16,64,$16 |
|
nop |
|
bne $0,1b |
|
|
|
ret |
|
nop |
|
nop |
|
nop |
|
|
|
.end clear_page |
|
EXPORT_SYMBOL(clear_page)
|
|
|