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| author | André Fabian Silva Delgado <emulatorman@parabola.nu> | 2015-08-05 17:04:01 -0300 |
|---|---|---|
| committer | André Fabian Silva Delgado <emulatorman@parabola.nu> | 2015-08-05 17:04:01 -0300 |
| commit | 57f0f512b273f60d52568b8c6b77e17f5636edc0 (patch) | |
| tree | 5e910f0e82173f4ef4f51111366a3f1299037a7b /arch/arm/lib/floppydma.S | |
Initial import
Diffstat (limited to 'arch/arm/lib/floppydma.S')
| -rw-r--r-- | arch/arm/lib/floppydma.S | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/arch/arm/lib/floppydma.S b/arch/arm/lib/floppydma.S new file mode 100644 index 000000000..617150b1b --- /dev/null +++ b/arch/arm/lib/floppydma.S @@ -0,0 +1,32 @@ +/* + * 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 + ldrgtb r12, [r11, #-4] + ldrleb 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 + ldrgeb r12, [r10], #1 + movlt r12, #0 + strleb r12, [r11], #0 + subles pc, lr, #4 + strb r12, [r11, #-4] + subs pc, lr, #4 +floppy_fiqout_end: |