On 2019-10-28 09:37, Christian Corti via cctalk wrote:
On Sat, 26 Oct 2019, nico de jong wrote:
As for documentation I have the CPU (only) technical manual for the
P850,
the 2 volumes of schematics for the P851 and the preliminary manual
(alas
without the microcode source) for the P854. Some other schematics for
things like the P854's PSU, the 4 channel serial port, floppy disk
system, etc.
[...]
In order to test things, I've developped a simulator and assembler
for the P857, although without floating point and I/O processor, as I
have no documentation for that, so maybe I can harvest something from
the documents you have. Are the mailable, or do you need to scan them
first?
I have the P856M/P857M service manual online (actually for 11 years
now ;-) )
It's the first hit from Google if you search for it.
This manual includes detailed description of the CPU, including the
I/O processor (appendix B), the MMU (appendix C) and the FPP (appendix
D).
Christian
That depends on what you put in the search field. The first one I found,
was my own manual on datamuseum.dk :-)
Anyway, I found some other very interesting things on your page, such as
the layout of the SSSD floppy, so my wiki will benefit of some serious
enhancements
Thanks
Nico
