This file contains an overview of the CBM 610 runtime system as it comes with the cc65 C compiler. It describes the memory layout, CBM 610 specific header files, available drivers, and any pitfalls specific to that platform.
Please note that CBM 610 specific functions are just mentioned here, they are described in detail in the separate function reference. Even functions marked as "platform dependent" may be available on more than one platform. Please see the function reference for more information.
In addition to the Commodore 610 (named B40 in the U.S.), several other machines are supported by this cc65 target, since they have identical hardware: The Commodore 620 and 630 (more memory, additional coprocessor card), and the Commodore 710, 720 and 730 (same hardware in another case with a builtin monitor).