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https://github.com/irmen/prog8.git
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63 lines
1.3 KiB
Lua
63 lines
1.3 KiB
Lua
%import textio
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%import math
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%import string
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%import floats
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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 ands(ubyte arg, ubyte b1, ubyte b2, ubyte b3, ubyte b4) -> ubyte {
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; return arg>b1 and arg>b2 and arg>b3 and arg>b4
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; }
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;
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; sub ors(ubyte arg, ubyte b1, ubyte b2, ubyte b3, ubyte b4) -> ubyte {
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; return arg==b1 or arg==b2 or arg==b3 or arg==b4
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; }
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; sub mcCarthy() {
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; ubyte @shared a
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; ubyte @shared b
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;
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; txt.print_ub(ands(10, 2,3,4,5))
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; txt.spc()
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; txt.print_ub(ands(10, 20,3,4,5))
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; txt.spc()
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; txt.print_ub(ors(10, 2,3,40,5))
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; txt.spc()
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; txt.print_ub(ors(10, 1,10,40,5))
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; txt.spc()
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; }
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sub start() {
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; mcCarthy()
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ubyte bb
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for bb in 250 to 255 {
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txt.print_ub(bb)
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txt.spc()
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}
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txt.nl()
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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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