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collapseos/blk/404
2020-05-10 08:40:49 -04:00

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: C<? 0x06 RAM+ @ ;
: C<
0x08 RAM+ @ ( 08 == C<* override )
DUP NOT IF DROP 0x0c RAM+ @ THEN ( 0c == C<* )
EXECUTE
;
: , HERE @ ! HERE @ 2+ HERE ! ;
: C, HERE @ C! HERE @ 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! ;