PDP11 M9301-Yx ROM dumps

Mattis Lind mattislind at gmail.com
Thu May 12 14:01:23 CDT 2016

2016-05-12 20:24 GMT+02:00 Jay West <jwest at classiccmp.org>:

> Do the M9312 roms help?
> www.classiccmp.org/PDP-11/M9312
Unfortunately not. They are entirely different. M9301 is four PROMs that
provide a 16 bit word but M9312 is four boot ROMS and one console emulator
ROM that are are separated. There are logic that converts the unibus
transaction into many 4 bit transactions. Thereby one can easily plugin
another boostrap by just changing a PROM. With M9301 you had several
different M9301 module, YA .. Yx


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