Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!nrl-cmf!ames!pacbell!att!ihlpb!gregg
From: gregg@ihlpb.ATT.COM (Wonderly)
Newsgroups: comp.lang.c
Subject: Re: Different pointer representations on the same machine
Message-ID: <9626@ihlpb.ATT.COM>
Date: 16 Feb 89 20:45:51 GMT
References: <3675@arcturus>
Organization: AT&T Bell Laboratories - Naperville, Illinois
Lines: 15

In article <3675@arcturus> evil@arcturus.UUCP (Wade Guthrie) writes:
>I have seen references on the net to computers which have different
>representations for different types of pointers (even some computers
>which represent different types of pointers as different sizes).
>
>Could I have some examples...

The middle model of the typical 80x86 C compiler is a great example.
Typically, pointers to text are FAR (selector/segment plus offset) while
pointers to data are NEAR (just offset).  While there is not a model
(that I have seen) that is the other way, it is a conceivable alternative.

-- 
Gregg Wonderly                             DOMAIN: gregg@ihlpb.att.com
AT&T Bell Laboratories                     UUCP:   att!ihlpb!gregg