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Task/Munching-squares/XPL0/munching-squares.xpl0

@@ -0,0 +1,15 @@
+include c:\cxpl\codes;          \intrinsic 'code' declarations
+int X, Y;
+[SetVid($101);                  \set 640x480 graphics with 8-bit color
+port($3C8):= 0;                 \set color registers with beautiful shades
+for X:= 0 to 256-1 do
+        [port($3C9):= X>>1;     \red
+         port($3C9):= X>>3;     \green
+         port($3C9):= X;        \blue
+         ];
+for Y:= 0 to 256-1 do           \"color table" is array of 256 registers
+    for X:= 0 to 256-1 do
+        Point(X, Y, X|Y);       \"|" = XOR, not OR which is "!"
+X:= ChIn(1);                    \wait for keystroke
+SetVid(3);                      \restore normal text mode
+]