10 Apr
2015
10 Apr
'15
2:52 p.m.
From: Brent Hilpert: Friday, April 10, 2015 2:20 PM
This 1969 PDP-14 manual from bitsavers indeed
describes a core rope ROM
implementation for the control memory:
http://bitsavers.trailing-edge.com/pdf/dec/pdp14/DEC-14-GGZA-D_PDP14UM_Nov6…
It indicates the initial programming was generally done by specification to
the DEC factory, but in-the-field reprogramming was also done.
Ineed, the bulk of chapter 12 attempts to describe how to do the
reprogramming.
Vince