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collapseos/blk/569
Virgil Dupras 2d9a07d215 blkunpack: don't include trailing empty lines
This was becoming heavy to manage.
2020-06-23 06:52:34 -04:00

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