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35 lines
467 B
35 lines
467 B
;;; SPDX-License-Identifier: GPL-2.0 |
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;;; strncpy.S |
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#include <asm/linkage.h> |
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.text |
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.global strncpy_from_user |
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;;; long strncpy_from_user(void *to, void *from, size_t n) |
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strncpy_from_user: |
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mov.l er2,er2 |
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bne 1f |
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sub.l er0,er0 |
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rts |
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1: |
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mov.l er4,@-sp |
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sub.l er3,er3 |
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2: |
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mov.b @er1+,r4l |
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mov.b r4l,@er0 |
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adds #1,er0 |
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beq 3f |
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inc.l #1,er3 |
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dec.l #1,er2 |
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bne 2b |
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3: |
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dec.l #1,er2 |
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4: |
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mov.b r4l,@er0 |
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adds #1,er0 |
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dec.l #1,er2 |
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bne 4b |
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mov.l er3,er0 |
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mov.l @sp+,er4 |
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rts
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