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From: frank@croton.dec.com (Frank Wortner)
Newsgroups: comp.sys.dec,comp.sys.dec.micro
Subject: Re: PDP-11 and LSI-11 Opcodes
Message-ID: <1477@riscy.dec.com>
Date: 12 Sep 89 13:00:24 GMT
References: <1989Sep11.221225.17780@cs.rochester.edu>
Followup-To: comp.sys.dec
Organization: Digital Equipment Corporation, NYC
Lines: 12


In article <1989Sep11.221225.17780@cs.rochester.edu>, yamauchi@cs.rochester.edu (Brian Yamauchi) writes:

> Do the PDP-11 and the LSI-11 have the same instruction set and use the
> same opcodes?
> 

Yes, they do.  However, there are some variations from model to model.  11/03s
don't support floating point, 11/23s support memory management hardware, etc.
The simpler, "core" instructions are the same.

						Frank