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31 lines
560 B
ArmAsm
31 lines
560 B
ArmAsm
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.export PLOT
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.include "pce.inc"
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.include "extzp.inc"
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PLOT: bcs @getpos
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tya
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;clc ; already cleared
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adc plotlo,x
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sta SCREEN_PTR
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cla
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adc plothi,x
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sta SCREEN_PTR+1
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@getpos:
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ldx CURS_Y
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ldy CURS_X
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rts
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.rodata
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plotlo: .repeat screenrows,line
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.byte <($0000+(line*$80))
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.endrepeat
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plothi: .repeat screenrows,line
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.byte >($0000+(line*$80))
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.endrepeat
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