1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
|
/*
* linux/arch/arm/lib/floppydma.S
*
* Copyright (C) 1995, 1996 Russell King
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#include <linux/linkage.h>
#include <asm/assembler.h>
.text
.global floppy_fiqin_end
ENTRY(floppy_fiqin_start)
subs r9, r9, #1
ldrbgt r12, [r11, #-4]
ldrble r12, [r11], #0
strb r12, [r10], #1
subs pc, lr, #4
floppy_fiqin_end:
.global floppy_fiqout_end
ENTRY(floppy_fiqout_start)
subs r9, r9, #1
ldrbge r12, [r10], #1
movlt r12, #0
strble r12, [r11], #0
subsle pc, lr, #4
strb r12, [r11, #-4]
subs pc, lr, #4
floppy_fiqout_end:
|
