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Someone pointed out that pencil lead is conductive !! :)

Maybe could emulate a little more RAM but not much. The Teensy 4.1 only has 1 MB of available RAM in total. Maybe 640KB is possible :)

A little more information on the project shared here: MicroCore Labs MCL68+ MOTOROLA 68000 EMULATOR – UPDATE

Update on this project: I fixed the remaining issues with the 68000 opcodes using Tom Harte's test suite and got some pleasant results! The latest code is uploaded to GitHub: MCL68+GitHub

Art for art's sake. Thanks! MCL68, the 68000 emulator code, is already is open-source. I'll post this project when it's a little further along.

Thank you for the kind words! :) I guess a project like this is just the culmination of skills gained from sporadic successes throughout decades of frequent failures.

I dont see why not. Well, the CPU emulation would definitely be possible, but I think the Teensy is maxed out at 8 MHz for the local bus! :) Could port it to a faster microcontroller though - the foundation is all there.

I would like to share my latest project, a Motorola 68000 drop-in emulator called the MCL68+. The CPU emulation is written in C and runs on a Teensy 4.1 micro controller board. I made a small PCB which contains a number of buffers and registers to break out and de-multiplex the Teensy's limited...