Re: sizeof(char)

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Article #12680

#12680

From: Guy Harris
Date: Mon, 10 Nov 1986 20:18

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> I realize this has nothing to do with the issue being discussed, but
> let's keep the technical references accurate.  DEC's current
> generation of processor chips (the 78032, aka MicroVAX-II) _does_
> support bit addressing and manipulation.

The MicroVAX-II supports the *bit field instructions of the VAX*.  This is
*not* the same as supporting "bit addressing".  Does the MicroVAX-II have
the ability to do a "movl" to an arbitrary *bit* boundary in memory?  A
"movc5" to an arbitrary *bit* boundary in memory?  Unless it's got a whole
set of bit-boundary instructions (i.e., unless they've added a bit-boundary
version of most of the instructions it supports), it doesn't support "bit
addressing" in the general sense.
-- 
	Guy Harris
	{ihnp4, decvax, seismo, decwrl, ...}!sun!guy
	guy@sun.com (or guy@sun.arpa)

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References: <4617@brl-smoke.ARPA> <657@dg_rtp.UUCP>

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Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP
Path: arc1-ca.pugleaf.net!utzoo!mnetor!seismo!lll-crg!mordor!sri-spam!sri-unix!hplabs!decwrl!sun!guy
From: guy@sun.uucp (Guy Harris)
Newsgroups: comp.arch,comp.lang.c
Subject: Re: sizeof(char)
Message-ID: <9116@sun.uucp>
Date: Mon, 10-Nov-86 15:18:39 EST
Article-I.D.: sun.9116
Posted: Mon Nov 10 15:18:39 1986
Date-Received: Tue, 11-Nov-86 06:24:54 EST
References: <4617@brl-smoke.ARPA> <657@dg_rtp.UUCP>
Organization: Sun Microsystems, Inc.
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