PDP-11/34 CPU PROMS

[Warner Losh]

On Tue, Feb 8, 2022 at 7:04 PM Warner Losh <imp at bsdimp.com> wrote:

> I found
> https://deramp.com/downloads/mfe_archive/011-Digital%20Equipment%20Corporation/08%20PDP-11/01%20PDP-1104-1134/05%20PDP-1104-1134%20Microcode/
> which has the source code...
>
> But I couldn't find the tools to use these files to create microcode
> images.
>

There's a small chance that the tools.tar.gz link on
http://www.ak6dn.com/PDP-11/M9312/ has these, but that's for a different
module so who knows...


> http://filedump.theglitchworks.net/software/vintage/dec/roms/bdv11_upgrade/
> has a number of ROM images. Don't know if they are the ones you want. What
> are the XX-XXXXX-XX numbers on the PROMs you are looking for?
>
> Warner
>
>
> On Tue, Feb 8, 2022 at 6:18 PM Rod Smallwood via cctalk <
> cctalk at classiccmp.org> wrote:
>
>> Hi
>>
>>           Jerry Walker and I have an 11/34 under restoration.
>>
>> We have run into a bit of a problem.
>>
>> On the M8266 CPU control board a defective 7404 (E111) has killed a
>> bunch of the PROMs holding the microcode.
>>
>> Does anybody have or can get images of the PROMs on this board so
>> replacement devices an be programmed.
>>
>> Rod
>>
>>
>>