Last change
on this file since 6099cac was 3ae31e9, checked in by Thomas Lopatic <thomas@…>, 8 years ago |
Imported original source code.
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100755
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File size:
710 bytes
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Rev | Line | |
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[3ae31e9] | 1 | * ------------------------------------------------------------------------------
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| 2 | * blkfill.s -- block fill function
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| 3 | * Version 1 -- 1987-08-28 -- D.N. Lynx Crowe
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| 4 | *
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| 5 | * void
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| 6 | * blkfill(where, what, count)
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| 7 | * char *where;
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| 8 | * char what;
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| 9 | * short count;
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| 10 | *
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| 11 | * Fills 'count' bytes at 'where' with 'what'.
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| 12 | * ------------------------------------------------------------------------------
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| 13 | .text
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| 14 | *
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| 15 | .xdef _blkfill
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| 16 | *
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| 17 | _blkfill: link a6,#0
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| 18 | movem.l d5-d7/a5-a5,-(a7)
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| 19 | movea.l 8(a6),a5
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| 20 | move.b 13(a6),d7
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| 21 | move.w 14(a6),d6
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| 22 | bra blkf2
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| 23 | *
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| 24 | blkf1: move.b d7,(a5)+
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| 25 | *
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| 26 | blkf2: move.w d6,d0
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| 27 | subq.w #1,d6
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| 28 | tst.w d0
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| 29 | bgt blkf1
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| 30 | *
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| 31 | tst (a7)+
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| 32 | movem.l (a7)+,d6-d7/a5-a5
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| 33 | unlk a6
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| 34 | rts
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| 35 | *
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| 36 | .end
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