Postby DGE » Tue Mar 05, 2013 8:01 pm
I'm looking for more information on the basic logic to add inputs to the 68k. The hardware documents go over in great detail on adding PS2 ports (which is a future project of mine to try). Right now, I'm trying to understand what would be needed using standard TTL (74LS) logic for a one button input tied to the 68k directly.