I've been making a debugging ROM board to test out the various parts of the KIM-1. It is based on taking over the KIM at reset
and running test. So far I've got two test working. One is a basic, is it running test that just blinks a light on the debug board. The next is a test of the first 1K of RAM. A little tricky to do without RAM. I expect to write some more for the RRIOT ics. If anyone has interest, they can follow me on the Vintage Computer Forum or contact me here. The board has 3 ttl ICs, a 2764/27128 EPROM, a couple LEDs and a dip switch. Also a few pullup resistors and capacitors. Dwight