21 lines
564 B
Text
21 lines
564 B
Text
define sysRandom $fe
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Snow:
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lda sysRandom ;get a random number
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and #$01 ;remove all but bit 0
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sta $0200,x ;store in first section of VRAM
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lda sysRandom ;get a random number
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and #$01 ;remove all but bit 0
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sta $0300,x ;store in second section of VRAM
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lda sysRandom ;get a random number
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and #$01 ;remove all but bit 0
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sta $0400,x ;store in third section of VRAM
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lda sysRandom ;get a random number
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and #$01 ;remove all but bit 0
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sta $0500,x ;store in last section of VRAM
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inx ;next X
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jmp Snow ;loop forever
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