Note: There is a successor to this CPU "N-86SX" which has locks, interrupts, returns, and stack.
I have posted details in popular non-official discord server
You can check different server (NAND)
Anyone who wants to download or work together you could reply here or in discord
My discord username is : "null_0xf4"
Edit: Since it is more complex it will run much slower at around 200~ Hz (400~ steps per second)