mirror of https://github.com/a2-4am/4cade.git
76 lines
1.5 KiB
Plaintext
76 lines
1.5 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.INDEXED/STAGGERWHITE.LR",plain
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*=$6000
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row = $fd
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col1 = $fe
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col2 = $ff
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!source "src/fx/macros.a"
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lda #$00
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sta col1
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lda #$27
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sta col2
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@outerloop1
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lda #$2E
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sta row
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@loop1 ldy col1
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lda row
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jsr HGRHalfBlockToWhite
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iny
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jsr HGRStaggerToWhite
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ldy col2
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lda row
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jsr HGRHalfBlockToWhite
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dey
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jsr HGRStaggerToWhite
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dec row
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dec row
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bpl @loop1
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lda #$40
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jsr WaitForKeyWithTimeout
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bmi @exit
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inc col1
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inc col1
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dec col2
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dec col2
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bpl @outerloop1
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lda #$00
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sta col1
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lda #$27
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sta col2
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@outerloop2
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lda #$2E
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sta row
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@loop2 ldy col1
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lda row
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jsr HGRHalfBlockCopy
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iny
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jsr HGRStaggerCopy
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ldy col2
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lda row
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jsr HGRHalfBlockCopy
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dey
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jsr HGRStaggerCopy
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dec row
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dec row
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bpl @loop2
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lda #$40
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jsr WaitForKeyWithTimeout
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bmi @exit
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inc col1
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inc col1
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dec col2
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dec col2
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bpl @outerloop2
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@exit rts
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!source "src/wait.a"
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+HGR_WHITE_ROUTINES
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+HGR_HALF_BLOCK_COPY_ROUTINES
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