BASIC

You can't claim to be a retro computer generally without it.

Turbo V uses Stefan's BASIC with minimal changes to allow it to interface with the kernel (and VERA).

At present, BASIC is a program instead of living in ROM. This is TBD but offers some major benefits given the memory layout of the system. Primarily this allows folks to be able to update BASIC without having to flash the ROM. Folks that enjoy booting into BASIC still can which is made simpler by the Turbo V having Low RAM and System RAM (Bus RAM).

ROM itself will likely have some program to boot into for when the SD card is not available. I'm thinking about something like a "SD card not found" error, but instead of doing nothing, might offer a simple version of snake or something fun.

State

BASIC can do, well, basic things. No video stuff has been wired up yet so it mostly is for text terminal things, but it does work!