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39 lines
746 B
Forth
39 lines
746 B
Forth
( Words allowing printing strings. Require core )
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( This used to be in core, but some drivers providing EMIT
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are much much easier to write with access to core words,
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and these words below need EMIT... )
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: (print)
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BEGIN
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C@+ ( a+1 c )
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( exit if null )
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DUP NOT IF 2DROP EXIT THEN
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EMIT ( a )
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AGAIN
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;
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: ,"
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BEGIN
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C<
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( 34 is ASCII for " )
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DUP 34 = IF DROP EXIT THEN C,
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AGAIN ;
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: ."
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34 , ( 34 == litWord ) ," 0 C,
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COMPILE (print)
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; IMMEDIATE
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: ABORT" [COMPILE] ." COMPILE ABORT ; IMMEDIATE
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: (uflw) ABORT" stack underflow" ;
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: BS 8 EMIT ;
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: LF 10 EMIT ;
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: CR 13 EMIT ;
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: CRLF CR LF ;
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: SPC 32 EMIT ;
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: (wnf) (print) SPC ABORT" word not found" ;
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: (ok) SPC ." ok" CRLF ;
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