Firmwares
You can get firmare version with $342 register and get b0,b1,b2. It will show the firmware version.
There is only 2 versions availables :
Firmware 1
Firmware 2
Manage microdisc compatibility : it handes $314 register to switch on the right ram overlay bank
Firmware 3
Under development
Firmware 4
It's under development but it will handles others hardware chips.
Last update:
2023-04-18