8008 Interrupt Processing Capture


The above capture demonstrates the interrupt processing of my 8008 computer. This particular capture shows the effect of "jamming" in a stop instruction. If you look at the center of the capture you will see that the processor actually outputs a stopped state, but then still continues to run. I'm not sure if this is a bug. I can stop the processor by using a Restart instruction to vector to a HLT instruction in memory.

You can also see the T1I "glitch", I clean this up with some extra logic.


Copyright 2004-2006, Len Bayles
Fri Sep 29 01:15:28 MDT 2006