mirror of
https://github.com/irmen/prog8.git
synced 2024-07-24 22:29:15 +00:00
29 lines
574 B
Lua
29 lines
574 B
Lua
%import textio
|
|
%zeropage basicsafe
|
|
|
|
; NOTE: meant to test to virtual machine output target (use -target virtual)
|
|
|
|
main {
|
|
|
|
sub start() {
|
|
|
|
; a "pixelshader":
|
|
sys.gfx_enable(0) ; enable lo res screen
|
|
ubyte shifter
|
|
|
|
repeat {
|
|
uword xx
|
|
uword yy = 0
|
|
repeat 240 {
|
|
xx = 0
|
|
repeat 320 {
|
|
sys.gfx_plot(xx, yy, xx*yy + shifter as ubyte)
|
|
xx++
|
|
}
|
|
yy++
|
|
}
|
|
shifter+=4
|
|
}
|
|
}
|
|
}
|