Subject: Re: Compiler timings on varous MVII NetBSDs etc.
To: NetBSD Bob <>
From: James Lothian <>
List: port-vax
Date: 01/24/2001 04:37:31
NetBSD Bob wrote:
> > >It looks more like a straight PDP-11 V7 port than VAX.  Interesting.
> > >Maybe the hacking was not all that substantial, after all!
> >
> > So do any of the MicroVAX other than the MicroVAX I have full PDP-11
> > emulation?
> Dunno, since I am not that much of an OT VAX hardware person.  But, I am
> reading in the 32V preface doc, ``The UNIX/32V(R) operating system for
> the VAX-11 provides substantially the same facilities as the UNIX system
> for the PDP-11''.  Grepping the source tree for PDP pulls out some
> remaining hits for PDP11 this and that, but they seem to relate to
> I/O bits in tape and disk systems.
> I still can't get over the VAX kernel of 59528 bytes.  Where did all the
> bloat come from, since then.....(:+}}...
> Bob
As far as I remember from the Salus (?) "25 years of Unix" book, 32V was
done by emulating the PDP11 memory management scheme on the vax -- i.e. 
no paging, just swapping.