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43 lines
821 B
Lua
43 lines
821 B
Lua
%import textio
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%zeropage dontuse
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; NOTE: meant to test to virtual machine output target (use -target vitual)
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main {
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sub start() {
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ubyte counter
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repeat 256 {
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txt.print_ub(counter)
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txt.spc()
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counter ++
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}
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txt.nl()
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; a "pixelshader":
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; syscall1(8, 0) ; enable lo res creen
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; ubyte shifter
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;
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; shifter >>= 1
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;
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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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; syscall3(10, xx, yy, xx*yy + shifter) ; plot pixel
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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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; txt.print_ub(shifter)
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; txt.nl()
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; }
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}
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}
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