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<div>Dear Peter,</div><div><br></div><div>I've written an email to Udo Möller asking about his project of Ceres on FPGA and I'm waiting for his reply.</div><div><br></div><div>Despite that, the site have some info on advances:</div><div><br></div><div>
> The easiest way is for someone with a working Ceres to donate the boot <br>
> software. I don't know any individual possessing a Ceres. Probably a <br>
> few remain in Europe. The Computer History Museum has more than one. <br>
>
A person living near the museum can become a member and initiate <br>
>
restoration of a Ceres to working condition. Then the boot code will <br>
>
be accessible.</div><div>For the remaining Ceres:</div><div><a href="http://cpu-ns32k.net/Ceres.html" target="_blank">http://cpu-ns32k.net/Ceres.html</a></div><div>"I visited the ETH Zürich in May 2012...<br></div><div>
The first Ceres machine was based on the NS32032 CPU. Not surprisingly no machine has survived more than 25 years."</div><div>He found some Ceres-2 and one Ceres-3 stored. And he mentioned: <br></div><div>"At least one other Ceres-3 workstation survived and is still functional. The owner promised me to power-up the system
from time to time to check if it is still ok.
" <br></div><div>But don't disclose who.<br></div><div>
</div>
</div><div><br></div><div>
> The Oberon sources are in the original Project Oberon book. <br></div><div>I guess the original printed one for the correct Ceres version. He mentions surprisingly in:</div><div><a href="http://cpu-ns32k.net/Oberon.html">http://cpu-ns32k.net/Oberon.html</a></div><div>
<i>"... Professor N. Wirth in the 1980's. He wrote a book about Oberon which contained the source code of it! Unfortunately
I still don't have the book"
</i></div><div>
<div>It seems that his plan is to reproduce the Ceres from ROM contents:<br></div><div>
<i>"What I have is the EPROM content of two Ceres-3 machines. Surprisingly they are different. Together with the description
of the Ceres-3 it should be possible to rebuild such a system based on the M32632 CPU. This will be a nice project to do"
</i></div>
</div><div><br></div><div>
> If you want to take a sabbatical year or so in California, there is a nice possibility.
</div><div>Oh! That thing does not exist in our University. It would be wonderful but I have no possibility. With a family with two children (2 y-o and a newborn baby girl), and an income of less than 12 thousand USD per year, I do not even have the chance of visiting by myself just for fun.</div><div><br></div><div>
> Another possibility: the Web site you mentioned has an interesting <br>> page describing computers built with wirewrap and with breadboard <br>
> wiring. <a href="http://www.cpu-ns32k.net/Gilbert.html" rel="noreferrer" target="_blank">http://www.cpu-ns32k.net/Gilbert.html</a> Hypothetically, there is <br>
> a possibility of recreating a Ceres machine.<br>
</div><div><br></div><div>He is announcing a future implementation of Ceres!</div><div><div><i>"Milestone 6 : TRIPUTER V2.0 is available. <br></i></div><div><i>Description: TRIPUTER V2.0 will contain the Ceres-3 and the PC532. <br></i></div><div><i>Status: to be done. <br></i></div><div><i>This chapter was last modified on 13 December 2020."</i></div>
</div><div><br></div><div>
> A further possibility: the Web site you mentioned has an interesting <br>> page about implementing(?) a NS 32xxx in FPGA.<br>
<a href="http://www.cpu-ns32k.net/FPGA.html" rel="noreferrer" target="_blank">> http://www.cpu-ns32k.net/FPGA.html</a> <br></div><div><br></div><div>
<div>He published the M32632, a Verilog SOC compatible
to the NS32532 CPU and the NS32381 FPU, on
2 December 2018 - release of version 3.0<br></div><div><a href="https://opencores.org/projects/m32632" target="_blank">https://opencores.org/projects/m32632</a></div><div>It is not up to date because recently (December 2020) he has finished a new version working in a so-called Triputer, mentioned on:</div><div><a href="http://cpu-ns32k.net/TRIPUTER.html" target="_blank">http://cpu-ns32k.net/TRIPUTER.html</a></div><div><i>"December 2020 : TRIPUTER V1.1 is available.<br>TRIPUTER V1.1 fixes two bugs in the Ethernet unit for NetBSD, adds a second disk drive for NetBSD and includes a statistic unit. The V1.1 zip archive contains seven files:<br> TRIPUTER_V11.sof , the FPGA configuration<br> TRIPUTER_V11.pof , the flash configuration<br> TRIPUTER_V11.pdf , the User Manual<br> monitor.32K , the source code of the TRIPUTER MONITOR program<br> gen_output.cof , the control code for the generation of the pof file<br> include.hex , the software being included in the pof file<br> statistic.c , demo program for NetBSD for use of statistic unit"</i><br></div><div><br></div>
</div><div>Best regards,</div><div>Pablo Cayuela</div><div></div><div><br></div><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Sat, Jan 2, 2021 at 2:29 PM <<a href="mailto:peter@easthope.ca" target="_blank">peter@easthope.ca</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
For me there are two constraints. Information. Time. Certainly a <br>
chapter about Ceres would be desirable.<br>
...<br>
Regards, ... P. L.<br>
</blockquote></div></div>