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29 lines
590 B
29 lines
590 B
/* SPDX-License-Identifier: GPL-2.0-only */ |
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/* |
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* linux/arch/arm/lib/floppydma.S |
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* |
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* Copyright (C) 1995, 1996 Russell King |
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*/ |
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#include <linux/linkage.h> |
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#include <asm/assembler.h> |
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.text |
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.global floppy_fiqin_end |
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ENTRY(floppy_fiqin_start) |
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subs r9, r9, #1 |
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ldrbgt r12, [r11, #-4] |
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ldrble r12, [r11], #0 |
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strb r12, [r10], #1 |
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subs pc, lr, #4 |
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floppy_fiqin_end: |
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.global floppy_fiqout_end |
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ENTRY(floppy_fiqout_start) |
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subs r9, r9, #1 |
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ldrbge r12, [r10], #1 |
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movlt r12, #0 |
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strble r12, [r11], #0 |
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subsle pc, lr, #4 |
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strb r12, [r11, #-4] |
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subs pc, lr, #4 |
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floppy_fiqout_end:
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