mirror of
https://github.com/irmen/prog8.git
synced 2024-10-17 10:24:55 +00:00
28 lines
610 B
Lua
28 lines
610 B
Lua
%import textio
|
|
|
|
; NOTE: meant to test to virtual machine output target (use -target vitual)
|
|
|
|
main {
|
|
sub start() {
|
|
txt.clear_screen()
|
|
txt.print("Welcome to a prog8 pixel shader :-)\n")
|
|
|
|
syscall1(8, 0) ; enable lo res creen
|
|
ubyte shifter
|
|
|
|
repeat {
|
|
uword xx
|
|
uword yy = 0
|
|
repeat 240 {
|
|
xx = 0
|
|
repeat 320 {
|
|
syscall3(10, xx, yy, xx*yy + shifter) ; plot pixel
|
|
xx++
|
|
}
|
|
yy++
|
|
}
|
|
shifter+=4
|
|
}
|
|
}
|
|
}
|