Path: utzoo!utgpu!news-server.csri.toronto.edu!mailrus!uunet!willett!ForthNet
From: ForthNet@willett.UUCP (ForthNet articles from GEnie)
Newsgroups: comp.lang.forth
Subject: BASIS Feedback
Message-ID: <708.UUL1.3#5129@willett.UUCP>
Date: 24 Mar 90 19:44:09 GMT
Organization: Latest link in the ForthNet chain.  (Pgh, PA)
Lines: 23

Category 18,  Topic 54
Message 5         Fri Mar 23, 1990
D.RUFFER [Dennis]            at 22:34 EST
 
 Re: rcstjs@eutws1.win.tue.nl (Jan Stout)

 > Can anyone explain to me why a definition of
 > : COMPILE    >R  DUP 3 +  >R  C@ C, ( store the JSR ) @ , ;
 > wouldn't run on subroutine threaders?

I assume there should be a DUP before the C@ and a 1+ before the @. Otherwise,
your question could be considered a trick. <grin>

You can not assume that the destination address will only be a cell wide.  It
may contain a segment and the address could be 32 bits, but the system is
written with a 16 bit stack.  Thus, the jump (on a 80386) may be 3, 5 or 7
bytes.  Since I'm working on developing a Forth forjust such a system right
now, I'd be opposed to anything that made assumptions about the token sizes.

Otherwise, I share most of your comments.   DaR
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