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Article #2307

Harris RTX, Hitachi AI32 info needed

#2307
From: Russ Wertenberg
Date: Thu, 21 Sep 1989 19:28
23 lines
1618 bytes
        I am just getting started with an investigation of several different
        types of computer architectures and it was suggested that the Harris
        RTX and the Hitachi AI32's would be an interesting place to start.

        If I was informed correctly, the Harris RTX is a two level computer
        which interprets FORTH directly to the digital logic level.  The
        Hitachi AI32 is a similar computer which uses an intermediary step
        between the high level language (One of 3 or 4 languages such as
        Lisp, Prolog, Smalltalk?) and the digital logic level.  I think the
        Hitachi has ROM's which can be switched depending which language is
        being used.

        I would appreciate any leads or information which would help me under-
        stand the uniqueness of these two computers.  Are either of these
        architectures similar to other existing computers in use?

        Lastly, are there any references which discuss the differences and
	advantages of using RISC or CISC.

	thank you in advance for your help,

	Russ Wertenberg
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Path: arc1-ca.pugleaf.net!utzoo!attcan!utgpu!jarvis.csri.toronto.edu!mailrus!uwm.edu!gem.mps.ohio-state.edu!ginosko!uunet!lll-winken!snll-arpagw!russ
From: russ@snll-arpagw.UUCP (Russ Wertenberg)
Newsgroups: comp.arch
Subject: Harris RTX, Hitachi AI32 info needed
Keywords: new architecture?
Message-ID: <135@snll-arpagw.UUCP>
Date: 21 Sep 89 19:28:43 GMT
Sender: russ@snll-arpagw.UUCP
Reply-To: russ@snll-arpagw.UUCP (Russ Wertenberg)
Distribution: usa
Organization: Sandia National Labs, Livermore, CA
Lines: 23