ABC80/max80_fw

réplica de https://git.zytor.com/abc80/max80/fw.git/

Autor	SHA1 Mensaxe	Data
H. Peter Anvin	d2951ecd94 spirom: issue the right 1-bit command; update ufddos80.rom	%!s(int64=2) %!d(string=hai) anos
H. Peter Anvin	0271d1979a sdram: return start to the right subunit; add ABC-bus latency counter	%!s(int64=2) %!d(string=hai) anos
H. Peter Anvin	ac8a492ba2 sdram: fix 8-bit ports; rename fw/ to rv32/ to avoid confusion	%!s(int64=3) %!d(string=hai) anos