Philips mini computers

nico de jong nico at
Mon Oct 28 04:22:42 CDT 2019

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 :-)

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 



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