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
>