Enhanced BASIC

This is a tweaked version of Lee Davison's Enhanced BASIC for the 6502 that has been adapted for the RC2014.

This version is meant to be used with the 6502 BIOS and Monitor/Debugger here and uses the BIOS serial I/O APIs as defined in the reset.asm file.

The code is still work-in-progress.

This work is derived from v2.22 of the EhBASIC that is hosted here by Klaus2m5.

Please note that EhBASIC is not meant for commercial (re)distribution.

Key differences with the default version of EhBASIC are:
- SYS keyword to exit back to the Monitor/Debugger
- Cold start entry point at $c100
- Warm start entry point at $c103
- Hopefully clearer comments in the code if you need to change addresses around...