Path: utzoo!utgpu!attcan!uunet!lll-winken!lll-tis!helios.ee.lbl.gov!pasteur!ucbvax!decwrl!sun!gorodish!guy
From: guy@gorodish.Sun.COM (Guy Harris)
Newsgroups: comp.lang.c
Subject: Re: data validation (was re self-modifying code)
Message-ID: <61866@sun.uucp>
Date: 28 Jul 88 19:21:11 GMT
References: <61251@sun.uucp> <3084@geac.UUCP>
Sender: news@sun.uucp
Lines: 9

>   This is for a machine which happily passes descriptors of arrays
> around, and manages to bounds-check array references in parallell
> with the fetch. 

Umm, err, what machine is that?  Doesn't sound like the GE 645 or the
successors that I knew of; as I remember it, the 645 and the HIS 6180 were
fairly "conventional" machines in most regards, with no automatic
bounds-checking for array references.  (Maybe some of the weirdball "indirect
then tag" addressing modes could do this, but I don't think the PL/I compiler
made much use of most of them.)