25 Oct
2010
25 Oct
'10
8 a.m.
There is an article that talks about the similarities between the 68000 and the VAX
instruction set and how there was a huge influence as these were introduced in the VAX. I
am not a programmer so I cannot tell you specifics as they are lost on me
I need to start putting notes with references at the bottom.
--- On Mon, 10/25/10, William Donzelli <wdonzelli at gmail.com> wrote:
From: William Donzelli <wdonzelli at gmail.com>
Subject: Re: Happy Birthday VAX 11/780
To: "General Discussion: On-Topic and Off-Topic Posts" <cctalk at
classiccmp.org>
Date: Monday, October 25, 2010, 10:53 AM
Also, the sentence starting "The
VAX
instruction set well revered would later on influence"
needs restructured. The paragraph after the bullet points
has more of the same error.
You could say that the designers of the 68000 were
influenced by the
PDP-11, but I do not think you could say the same thing
about the VAX.
When the 68000 design was started, the VAX was still well
under wraps.
I can see no reason why DEC would have let the Motorola
guys see the
developing architecture.
Anyway, in the mid/late 1970s, heavily microcoded very
CISCy
architectures were pretty much the design route of choice.
It was
everywhere. It is very difficult to pin down influences.
--
Will