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