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19 lines
415 B
Forth
19 lines
415 B
Forth
( Get word header length from wordref. That is, name length
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+ 3. a is a wordref )
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( a -- n )
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: WHLEN
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1 - C@ ( name len field )
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0x7f AND ( remove IMMEDIATE flag )
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3 + ( fixed header len )
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;
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( Get word addr, starting at name's address )
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: '< ' DUP WHLEN - ;
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( Get word's prev offset )
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( a -- a )
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: PREV
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3 - DUP @ ( a o )
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- ( a-o )
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;
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