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collapseos/recipes/ti84/blk/620
2020-09-20 20:24:09 -04:00

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: _tbl^ ( swap input tbl )
_atbl = IF _dtbl ELSE _atbl THEN ;
: (key)
0 _2nd! 0 ( lastchr ) BEGIN
_alock@ IF _atbl ELSE _dtbl THEN
OVER 0x80 ( alpha ) =
IF _tbl^ _2nd@ IF _alock^ THEN THEN
SWAP 0x81 = _2nd!
_gti + C@
DUP 0 0x80 >< UNTIL ( loop if not in range )
( lowercase? )
_2nd@ IF DUP 'A' 'Z' =><= IF 0x20 OR THEN THEN
;
: KBD$ 0 [ KBD_MEM LITN ] C! ;