David Venhoff
cfcea9ee67
Based off b80915eb99
and compacted into a single commit so that it will fit on the uni git server
30 lines
590 B
ArmAsm
30 lines
590 B
ArmAsm
/* 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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