c64 and c128 commodore operating system and parts/peices to applications build for use with cc65
some of the content is generated with the help of chatgpt so not all of it works yet.
typical compile use latest github or sourceforge cc65 ../../bin/cl65 -t c64 sound1.c -o test.prg
https://github.com/netpipe/GL-C64 WIP OpenGL for C64 with cc65