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- 0 VARIABLE M
- 0 VARIABLE TM
-
- : SQUARE
- DUP 4 PICK + 3 PICK MOVE
- 2DUP + 4 PICK SWAP DRAW
- DUP 4 PICK SWAP - 3 PICK DRAW
- 2DUP - 4 PICK SWAP DRAW
- SWAP >R + R> DRAW
- ;
-
- R: DIAMOND ( X / Y / S )
- DUP
- M @
- >= IF
- 2/
- >R>
- 3 PICK + OVER R DIAMOND
- ( X / Y )
- OVER R - OVER R DIAMOND
- 2DUP R - R DIAMOND
- 2DUP R + R DIAMOND
- R> SQUARE
- ELSE
- 2DROP DROP
- THEN
- R;
-
- : MAIN
- NOWIMPS
- 0 MODE
- 256 DUP M !
- TIME TM !
- BEGIN
- 640 512 512 DIAMOND
- [ HEX ] 30012 VDU3 [ DECIMAL ]
- 2/
- DUP DUP M !
- 16 <
- UNTIL
- TIME TM @ - TM !
- DROP
- ." Press Any Key"
- KEY DROP WIMPS
- CR ." Time was "
- TM ? ." centiseconds" CR
- ;
-