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16 lines
645 B
Plaintext
16 lines
645 B
Plaintext
( Now we have "as late as possible" stuff. See bootstrap doc. )
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: _bchk DUP 0x7f + 0xff > IF LIT" br ovfl" (print) ABORT THEN ;
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: DO COMPILE 2>R H@ ; IMMEDIATE
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: LOOP COMPILE (loop) H@ - _bchk C, ; IMMEDIATE
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( LEAVE is implemented in low xcomp )
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: LITN COMPILE (n) , ;
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( gets its name at the very end. can't comment afterwards )
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: _ BEGIN LIT" )" WORD S= UNTIL ; IMMEDIATE
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: _ ( : will get its name almost at the very end )
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(entry) 1 ( compiled ) C,
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BEGIN
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WORD DUP LIT" ;" S= IF DROP COMPILE EXIT EXIT THEN
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FIND IF ( is word ) DUP IMMED? IF EXECUTE ELSE , THEN
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ELSE ( maybe number ) (parse) LITN THEN
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AGAIN ;
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