Path: utzoo!utgpu!jarvis.csri.toronto.edu!cs.utexas.edu!uunet!willett!ForthNet
From: ForthNet@willett.UUCP (ForthNet articles from GEnie)
Newsgroups: comp.lang.forth
Subject: Forth on the Intel 80386
Message-ID: <570.UUL1.3#5129@willett.UUCP>
Date: 27 Feb 90 23:55:09 GMT
Organization: Latest link in the ForthNet chain.  (Pgh, PA)
Lines: 21


 Date: 02-26-90 (10:45)              Number: 2967 (Echo)
   To: DAVID ALBERT                  Refer#: 2907
 From: PETE KOZIAR                     Read: NO
 Subj: INNER INTERPRETER             Status: PUBLIC MESSAGE

 The best reason for the inner interpreter on the 80x86 family is 
 because there's only really one stack, pointed to by SP.  It makes 
 sense to use the fastest access for the most-used stack, namely, the 
 parameter stack. 

 Another reason is that a lot of the 80x86 FORTHS have their roots in 
 8080 FORTHS for which the CPU was more primitive. 

 One disadvantage of subroutine-threading is that it uses an extra byte 
 or two for the instruction prefix. 
 ---
  * Via Qwikmail 2.01  The Baltimore Sun 
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