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From: jbs@mit-eddie.MIT.EDU (Jeff Siegal)
Newsgroups: comp.arch,comp.lang.c
Subject: Re: sizeof(char)
Message-ID: <3853@mit-eddie.MIT.EDU>
Date: Tue, 11-Nov-86 14:56:28 EST
Article-I.D.: mit-eddi.3853
Posted: Tue Nov 11 14:56:28 1986
Date-Received: Tue, 11-Nov-86 20:46:34 EST
References: <4617@brl-smoke.ARPA> <657@dg_rtp.UUCP>
Reply-To: jbs@eddie.MIT.EDU (Jeff Siegal)
Organization: MIT, EE/CS Computer Facilities, Cambridge, MA
Lines: 14
Xref: mnetor comp.arch:7 comp.lang.c:10

In article <9116@sun.uucp> guy@sun.uucp (Guy Harris) writes:
>[...]
>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?
>[...]it doesn't support "bit addressing" in the general sense.

In the general sense, no, but you can move any string of up to 32 bits
from any bit boundry in memory to any other.  I don't see the
difference between this and a movl to any bit location.  It is
certainly much different than having to read memory in byte (or word)
boundries and do shifts.

Jeff Siegal