30 lines
590 B
ArmAsm
30 lines
590 B
ArmAsm
|
/* SPDX-License-Identifier: GPL-2.0-only */
|
||
|
/*
|
||
|
* linux/arch/arm/lib/floppydma.S
|
||
|
*
|
||
|
* Copyright (C) 1995, 1996 Russell King
|
||
|
*/
|
||
|
#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:
|