collapseos/blk/364
Virgil Dupras f6ded7712e VE: add 't'
This is the first commit I do entirely in VE. It's a habit I'm planning
on taking as it helps a lot to find usability issues.
2020-06-11 18:12:01 -04:00

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: C<? 0x06 RAM+ @ ;
: C<
0x08 RAM+ @ ( 08 == C<* override )
?DUP NOT IF 0x0c RAM+ @ THEN ( 0c == C<* )
EXECUTE
;
: , H@ ! H@ 2+ HERE ! ;
: C, H@ C! H@ 1+ HERE ! ;
: BIT@ ( bit addr -- f ) C@ SWAP RSHIFT 0x01 AND ;
: BIT! ( f bit addr -- )
SWAP 0x01 SWAP LSHIFT ROT ( addr mask f )
IF OVER C@ OR
ELSE 0xff XOR OVER C@ AND THEN ( addr flg )
SWAP C! ;