MCL68+ A Motorola 68000 drop-in emulator

[MicroCoreLabs]

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 pins to the 68000's 64 pins.

I thought now would be a good time to share my progress in case I never get any further along!

 

[Nixontheknight]

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 pins to the 68000's 64 pins.

I thought now would be a good time to share my progress in case I never get any further along!

I wonder if it's possible to optimize that enough to make the 68000 emulation into 68010 emulation or have it emulate an 020 or 030 (probably at 16MHz or lower)

 

[MicroCoreLabs]

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.

 

[MacOfAllTrades]

Dude this is really amazing. How did you go about learning enough to do this?

 

[MicroCoreLabs]

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.

 

[alectrona2988]

i love fun projects like this where there's not much practical use, but it works. a lot of people generally dismiss the fun stuff... ugh!
very nice work, would love to see it open sourced if possible.

 

[MicroCoreLabs]

"i love fun projects like this where there's not much practical use,

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.