| 1 | /* SPDX-License-Identifier: GPL-2.0-only */ |
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| 2 | /* |
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| 3 | * linux/arch/arm/lib/floppydma.S |
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| 4 | * |
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| 5 | * Copyright (C) 1995, 1996 Russell King |
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| 6 | */ |
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| 7 | #include <linux/linkage.h> |
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| 8 | #include <asm/assembler.h> |
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| 9 | .text |
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| 10 | |
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| 11 | .global floppy_fiqin_end |
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| 12 | ENTRY(floppy_fiqin_start) |
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| 13 | subs r9, r9, #1 |
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| 14 | ldrbgt r12, [r11, #-4] |
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| 15 | ldrble r12, [r11], #0 |
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| 16 | strb r12, [r10], #1 |
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| 17 | subs pc, lr, #4 |
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| 18 | floppy_fiqin_end: |
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| 19 | |
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| 20 | .global floppy_fiqout_end |
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| 21 | ENTRY(floppy_fiqout_start) |
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| 22 | subs r9, r9, #1 |
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| 23 | ldrbge r12, [r10], #1 |
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| 24 | movlt r12, #0 |
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| 25 | strble r12, [r11], #0 |
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| 26 | subsle pc, lr, #4 |
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| 27 | strb r12, [r11, #-4] |
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| 28 | subs pc, lr, #4 |
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| 29 | floppy_fiqout_end: |
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| 30 | |
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