G'DOS prebuilt m68k platforms

This release contains prebuilt binaries targeting the simulated platforms of the m68k arch. Both were built from master as of today.

gdos-m68k-emu68k.bin is for direct use with emu68k
gdos-m68k-bsvc.s68 is for direct use with BSVC

The complete ELF objects for each target have also been provided, should you wish to flatten them yourself.