v2.1

Release notes:

• Removed 2400 baud support, because on VIC-20 is broken
• Added two color combos
• Changing color combo does not clear screen anymore

v2.0

Improvements:

• Translated BASIC to C
• Implemented ASCII/PETSCII modes
• In ASCII mode, chr(12) implements screen cleaning.
• Possibility to connect at 300 / 600 / 1200 / 2400 baud
• Beep when receiving chr(7)
• Toggle B&W / Classic colors.
• Versions for unexpanded, exp 8k+, exp 3k

v1.0

Slight improvement on the original vic-modem manual:

• fixed render bug on 22th screen column
• using interrupt for producing blinking cursor*
• translate chr(12) into chr(147) for screen cleaning