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: Forth Engines / Harris
Message-ID: <905.UUL1.3#5129@willett.UUCP>
Date: 6 May 90 03:55:27 GMT
Organization: Latest link in the ForthNet chain.  (Pgh, PA)
Lines: 34


 Date: 05-04-90 (11:27)              Number: 484 (Echo)
   To: ALL                           Refer#: NONE
 From: PETE KOZIAR                     Read: (N/A)
 Subj: RTXEB NOTE                    Status: PUBLIC MESSAGE

 One thing I got bitten by in my programming the RTXEB is that it 
 allocates code and data spaces separate.  This means that 
 CREATE...ALLOT doesn't do what it usually does.  Here's an example: 

 CREATE GOO   20 ALLOT 
 : FOO  ... ; 

 What this does is create something called GOO, which returns the 
 current address in CODE SPACE, which will turn out to be the body of 
 FOO!  The 20 ALLOT was in data space, which we wind up not being able 
 to get to. 

 There may be a better way to do this, but this works for me: 

 VARIABLE GOO  18 ALLOT 
 : FOO ... ; 

 This way, GOO returns the current place in data space.  The use of 
 VARIABLE already ALLOTs 2 bytes, so we subtract that from the amount of 
 bytes we need for our storage. 

 He who has ears, let him hear.  Before I figured this out, it near 
 drove me nuts. 
 ---
  * Via Qwikmail 2.01  The Baltimore Sun 
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