binutils port to a new 16bit little endian uC

[DJ Delorie]

Aurélien Buhrig <aurelien.buhrig@tiempo-ic.com> writes:
> The new architecture is a 16-bit uC. The instructions are therefore 16 bit
> wide, possibly followed by a 8bit or 16 bit immediate value for the 2 word
> instructions.

Just FYI, CGEN doesn't like variable length opcodes.  It can be done
(see the m32c files) but it's neither pretty nor easy.

m32c is, however, a fixed-endian chip.  Might be a useful reference
port anyway.