2022-02-22 20:07:19 +00:00
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%import textio
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2022-03-13 11:52:12 +00:00
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2022-03-24 23:17:41 +00:00
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; NOTE: meant to test to virtual machine output target (use -target vitual)
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2021-10-30 13:15:11 +00:00
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main {
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2022-02-15 22:16:49 +00:00
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sub start() {
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2022-03-28 23:16:26 +00:00
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txt.clear_screen()
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txt.print("Welcome to a prog8 pixel shader :-)\n")
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uword ww = 0
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ubyte bc
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uword wc
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for bc in "irmen" {
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txt.chrout(bc)
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ww++
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}
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txt.print_uw(ww) ; 5
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2022-03-27 23:49:43 +00:00
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txt.nl()
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2022-03-28 23:16:26 +00:00
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for bc in [10,11,12] {
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txt.print_ub(bc)
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txt.spc()
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ww++
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}
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txt.print_uw(ww) ; 8
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2022-03-27 23:49:43 +00:00
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txt.nl()
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2022-03-30 19:44:48 +00:00
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txt.nl()
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2022-03-27 22:18:56 +00:00
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2022-03-30 19:44:48 +00:00
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for wc in [4097,8193,16385] {
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2022-03-28 23:16:26 +00:00
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txt.print_uw(wc)
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txt.spc()
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ww++
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}
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txt.print_uw(ww) ; 11
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txt.nl()
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2022-03-27 19:59:46 +00:00
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2022-03-30 23:41:59 +00:00
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ubyte rfrom = 10
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ubyte rto = 17
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2022-03-30 21:40:39 +00:00
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for bc in rfrom to rto step 2 {
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; 10,12,14,16
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2022-03-30 19:44:48 +00:00
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txt.print_ub(bc)
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txt.spc()
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ww++
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}
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txt.print_uw(ww) ; 15
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txt.nl()
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2022-03-30 21:40:39 +00:00
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for bc in 30 to 0 step -4 {
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2022-03-30 19:44:48 +00:00
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; 30,26,22,18,14,10,6,2
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txt.print_ub(bc)
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txt.spc()
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ww++
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}
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txt.print_uw(ww) ; 23
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txt.nl()
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2022-03-28 23:16:26 +00:00
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sys.exit(99)
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2022-03-27 19:59:46 +00:00
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2022-03-27 12:23:01 +00:00
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2022-03-28 21:49:44 +00:00
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; the "pixelshader":
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2022-03-27 23:49:43 +00:00
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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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2022-03-04 21:26:46 +00:00
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}
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2022-02-17 23:40:31 +00:00
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}
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