View Single Post
Old 3rd Jul 2021, 7:48 am   #32
Mark1960
Octode
 
Join Date: Mar 2020
Location: Kitchener, Ontario, Canada
Posts: 1,265
Default Re: Multiprocessing SCMPII on MK14

After bootstrapping the ram from the prom by linking write enable to nrds the MK14 then starts up with 0001 CF on the display instead of 0000 00. I was able to step through memory and verify the ram contents against the Later version listing in the manual, there were a few areas that needed to be manually loaded, for example the serial routines, as these areas of prom were not executed when exercising the monitor from the prom.

After correcting the monitor in the ram it still starts up with 0001 CF after a reset.

I wonder if this might be due to decoding the 4K pages and only having the monitor at 0000.
Mark1960 is offline