PDP-11/34 CPU PROMS

[Warner Losh]

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.

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
>
>
>