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66 lines
1.2 KiB
Plaintext
66 lines
1.2 KiB
Plaintext
;license:MIT
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;(c) 2018 by 4am
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;
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!cpu 6502
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!to "build/FX/BLOCK.MOSAIC",plain
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*=$6000
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coord = $FE
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lda #<@coords
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sta coord
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lda #>@coords
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sta coord+1
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@whiteloop
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ldy #0
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lda (coord),y
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bmi @endwhite
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tax
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iny
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lda (coord),y
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tay
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txa
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jsr HGRBlockToWhite
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lda #$03
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jsr WaitForKeyWithTimeout
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bmi @exit
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inc coord
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bne +
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inc coord+1
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+ inc coord
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bne +
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inc coord+1
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+ bne @whiteloop
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@endwhite
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lda #<@coords
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sta coord
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lda #>@coords
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sta coord+1
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@copyloop
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ldy #0
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lda (coord),y
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bmi @exit
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tax
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iny
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lda (coord),y
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tay
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txa
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jsr HGRBlockCopy
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lda #$03
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jsr WaitForKeyWithTimeout
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bmi @exit
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inc coord
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bne +
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inc coord+1
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+ inc coord
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bne +
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inc coord+1
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+ bne @copyloop
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@exit rts
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@coords
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!source "src/fx/fx.hgr.block.fizzle.data.a"
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!source "src/wait.a"
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!source "src/fx/fx.hgr.common.a"
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