SDK v6.4.0

New targets

• #231 -- Add Commodore VIC-20 target (mos-vic20-clang) -- @asiekierka
• #233 -- Add Commodore 128 target (mos-c128-clang) -- @asiekierka

New features

• #395 -- Wrap od65 and ld65 to link xo65 object files
  • This is a pretty landmark feature (IMO); you can now use ca65 object files (i.e. xo65 files) in a llvm-mos link more-or-less as if they were ELF. This allows linking against existing ca65 libraries without converting them to work with the llvm assembler.
  • See https://llvm-mos.org/wiki/Cc65_integration for details
  • See https://github.com/mysterymath/llvm-pently for an example project that links the NES "pently" auto library assembled with ca65 against a demo application in llvm-mos C.

New libraries

• #231 -- Add cc65-compatible header files for PET -- @asiekierka

Bug fixes

• llvm-mos/llvm-mos#392 -- Fixed issue where a function that only called __attribute__((leaf)) inline asm could be incorrectly optimized out
• #233 -- Minor volatile fixes for Commodore PET -- @asiekierka