Editing Commodore 128 (section)

== Operating System and Software ==

The C64's Commodore BASIC 2.0 was replaced with BASIC 7.0, which includes structured programming commands from the Plus/4's BASIC 3.5, as well as keywords designed specifically to take advantage of the machine's capabilities<ref>{{cite web |url=https://en.wikipedia.org/wiki/Commodore_128 |title=Commodore 128 - Wikipedia |publisher=Wikipedia |date=2025-06-06 |access-date=2025-06-09}}</ref>. A sprite editor and machine language monitor were added. The screen-editor part of the Kernal was further improved to support an insert mode and other features accessed through ESC-key combinations, as well as a rudimentary windowing feature, and was relocated to a separate ROM<ref>{{cite web |url=https://en.wikipedia.org/wiki/Commodore_128 |title=Commodore 128 - Wikipedia |publisher=Wikipedia |date=2025-06-06 |access-date=2025-06-09}}</ref>.

The C128 operates in three distinct modes:
1. '''C128 Mode''': Native mode