[squeak-dev] Efficient Implementation of the Smalltalk-80 System: what was the hardware?

Yoshiki Ohshima Yoshiki.Ohshima at acm.org
Tue Jul 23 17:29:32 UTC 2019


Hi Michael!

0.6% Dorado sounds pretty good!

On Tue, Jul 23, 2019 at 3:55 AM Michael Rueger <lists at andience.co.nz> wrote:
>
>
> it probably was a 68020.
>
> Back in '83/84 I was part of group of students with Georg Heeg as supervisor who implemented a Smalltalk-80 VM in
> Modula-2 (it did 0.6% Dorado).
>
> We used a PCS Cadmus (https://en.wikipedia.org/wiki/Periphere_Computer_Systeme#Cadmus) which I'm pretty sure was 68020.
> The department coughed up a major sum of money to upgrade it from 512KB(!) to 1 MB.
>
> So I would guess that would be pretty much what was used at the time.
>
> Hans-Martin Mossner might remember some bits (pun intended) from back then as well.
>
> Cheers
>
> Michael
>
> On 23/07/19 9:22 PM, Tobias Pape wrote:
> > Hi Yoshiki
> >
> >
> >> On 23.07.2019, at 06:16, Yoshiki Ohshima <Yoshiki.Ohshima at acm.org> wrote:
> >>
> >> If I'm not mistaken, I cannot find the actual hardware description of
> >> the hardware they used in:
> >>
> >> https://dl.acm.org/citation.cfm?id=800542
> >>
> >> except that it mentions a microprocessor a few times.  Does anybody
> >> know what was the microprocessor they experimented with?
> >
> >
> > I asked Mario and he thinks it could have been a 68020...
> > But the authors may have more details in this talk: https://youtu.be/sw7TkkiGVIY
> >
> > Best regards
> >       -Tobias
> >
>


-- 
-- Yoshiki


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