Firmware upgrade: version 1.23

[Vectrex32]

There's a new version of the Vectrex32 firmware available, version 1.23. If you already own Vectrex 1.10 or newer, you can download the firmware here. If you still have version 1.00, please read this.

There are a few new features and bug fixes but the most important change is that the Vectrex32 can now support much larger drawing lists. It does this by reusing the 2K dual-port RAM multiple times per frame.

- Bob