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13 lines
417 B
Plaintext
13 lines
417 B
Plaintext
: _gti ( -- tindex, that it, index in _dtbl or _atbl )
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0 ( gid ) 0 ( dummy )
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BEGIN ( loop until a digit is pressed )
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DROP
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1+ DUP 7 = IF DROP 0 THEN ( inc gid )
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1 OVER LSHIFT 0xff -^ ( group dmask ) _get
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DUP 0xff = NOT UNTIL _wait
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( gid dmask )
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0xff XOR ( dpos ) 0 ( dindex )
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BEGIN 1+ 2DUP RSHIFT NOT UNTIL 1-
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( gid dpos dindex ) NIP
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( gid dindex ) SWAP 8 * + ;
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