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From: uh@informatik.uni-kiel.dbp.de (Ulrich Hoffmann)
Newsgroups: comp.lang.forth
Subject: Re: TEXIT
Message-ID: <2394@batman.informatik.uni-kiel.dbp.de>
Date: 19 Feb 91 14:43:24 GMT
References: <9102141431.AA13743@ucbvax.Berkeley.EDU>
Organization: Universitaet Kiel, Germany
Lines: 30


In <9102141431.AA13743@ucbvax.Berkeley.EDU> wmb@MITCH.ENG.SUN.COM writes:


>  : ||  POSTPONE IF  POSTPONE TRUE  POSTPONE EXIT  POSTPONE THEN  ; IMMEDIATE

>which brings up another point:  TRUE and FALSE will be in Basis 15.

Exactly what I had mind. I was unsure about TRUE and FALSE, so didn't use them.

Well, what about the values they represent. -1 and 0 as in FORTH-83?

What's the current status of NOT? I often found it useful to define TRUE and FALSE
by

            0 CONSTANT FALSE  ( -- ff )
    FALSE NOT CONSTANT TRUE   ( -- tf )

which works on FIG and Forth-83 Systems.




Ulrich Hoffmann
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