Subject: Re: NetBSD/pdp10 ?
To: Greg Lehey <grog@lemis.com>
From: Ignatios Souvatzis <is@netbsd.org>
List: tech-kern
Date: 03/13/2002 20:32:01
On Tue, Mar 12, 2002 at 11:14:15AM +1030, Greg Lehey wrote:
> On Monday, 11 March 2002 at 23:40:27 +0000, David Laight wrote:
> > On Sat, Mar 09, 2002 at 06:14:20PM -0500, der Mouse wrote:
> >>> [...], but later they moved to 9 bit ASCII.
> >>
> >> ...isn't ASCII 7 bit by definition?  Or is "9 bit ASCII" an
> >> abbreviation for "ASCII in the low 7 bits of a 9-bit field"?  (And in
> >> that case, I'm curious: what did the other 3/4 of the possible values
> >> mean, do you happen to know?)
> >
> > Probably all zero.
> >
> > What about 6 bit ASCII?
> 
> The PDP-8 used that.  Upper case and symbols only.  I don't recall how
> they handled CR and LF, since they would overlay M and J.

my trusty old PDP8/E - in - a - PDP8/M - like - case won't boot NetBSD...
8k Words (of 12 bit each) aren't enough, I'm afraid.

	-is