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cc65 is a complete cross development package for 65(C)02 systems, including a powerful macro assembler, a C compiler, linker, librarian and several other tools.

cc65 has C and runtime library support for many of the old 6502 machines, including

The libraries are fairly portable, so creating a version for other 6502s shouldn't be too much work.


If you want to contribute please get in touch with me.