If I may make a suggestion of my own,
http://www.floodgap.com/retrotech/xa/
Yes, I maintain it and the companion disassembler. And yes, it runs on NetBSD (my development environment for the C64 for many years was a Mac IIci running 1.4.2 and netatalk, sharing an objects directory to my 7300, which had it mounted as a disk image in Power64).
http://www.floodgap.com/retrotech/xa/
Yes, I maintain it and the companion disassembler. And yes, it runs on NetBSD (my development environment for the C64 for many years was a Mac IIci running 1.4.2 and netatalk, sharing an objects directory to my 7300, which had it mounted as a disk image in Power64).