View Single Post
Old 20th Nov 2019, 6:44 am   #21
circuitryboy
Pentode
 
circuitryboy's Avatar
 
Join Date: Jun 2012
Location: Bristol, UK.
Posts: 115
Default Re: A Simple Programmer for TESLA "MH74S-" bipolar PROMs

We have a couple of new points since my last visit. (These threads go fractal so quickly.)
The one I'm looking at now is possible variations in SCMPKB.
Curiousmarc gives us a crisp reproduction of the NS-supplied teletype listing from the 1976 SCMPKB assembler run. And he's used it to recreate a PROM.
The other sample is from 8bity.cz. (I once sold Martin an '8060N on ebay.) I've trawled through that site and I can only find the SCMPKB listing that's in a full scan of MK14 Manual Edition 1.
This has been retyped and has several 'points of confusion' but the code is the same.
Can you actually display/list the points where your 'modern' EPROM contents diverge?
It is possible that NS used other code versions in their own units. Observe the display in attached.
Attached Thumbnails
Click image for larger version

Name:	NS_Introkit_Running_s1.jpg
Views:	146
Size:	95.1 KB
ID:	193978  
circuitryboy is offline