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Last change
on this file was
e16e8f2,
checked in by Edwin Eefting <edwin@datux.nl>, 3 years ago
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bootstuff
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-
Property mode set to
100644
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File size:
281 bytes
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| Line | |
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| 1 | # |
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| 2 | # memcpy.S |
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| 3 | # |
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| 4 | # Simple 16-bit memcpy() implementation |
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| 5 | # |
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| 6 | |
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| 7 | .text |
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| 8 | .code16gcc |
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| 9 | .globl memcpy |
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| 10 | .type memcpy, @function |
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| 11 | memcpy: |
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| 12 | cld |
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| 13 | pushw %di |
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| 14 | pushw %si |
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| 15 | movw %ax,%di |
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| 16 | movw %dx,%si |
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| 17 | # The third argument is already in cx |
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| 18 | rep ; movsb |
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| 19 | popw %si |
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| 20 | popw %di |
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| 21 | ret |
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| 22 | |
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| 23 | .size memcpy,.-memcpy |
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