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29 lines
574 B
Lua
29 lines
574 B
Lua
%import textio
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%zeropage basicsafe
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; NOTE: meant to test to virtual machine output target (use -target virtual)
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main {
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sub start() {
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; a "pixelshader":
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sys.gfx_enable(0) ; enable lo res screen
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ubyte shifter
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repeat {
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uword xx
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uword yy = 0
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repeat 240 {
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xx = 0
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repeat 320 {
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sys.gfx_plot(xx, yy, xx*yy + shifter as ubyte)
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xx++
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}
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yy++
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}
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shifter+=4
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}
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}
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}
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