Last change
on this file since 0cfc372 was 4f508e6, checked in by Thomas Lopatic <thomas@…>, 7 years ago |
Converted assembly language files.
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Property mode
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100644
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File size:
666 bytes
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Rev | Line | |
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[4f508e6] | 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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[f40a309] | 13 | .text
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[4f508e6] | 14 |
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[f40a309] | 15 | .xdef _blkfill
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[4f508e6] | 16 |
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[f40a309] | 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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[4f508e6] | 23 |
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[f40a309] | 24 | blkf1: move.b d7,(a5)+
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[4f508e6] | 25 |
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[f40a309] | 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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[4f508e6] | 30 |
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[f40a309] | 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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[4f508e6] | 35 |
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[f40a309] | 36 | .end
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