#5 020+ stuff and keyboard issue

[Anonymous]

I've added a few 020+ goodies in the cpu emu :
- now support full extension word to allow 020+
addressing modes
- added support for long mul and long div
- added bitfield instructions

Also I've patched the keyboard handling in x.c because
I couldn't map correctly my keys in config file for Sun
(machine and keyboard) : i've done that by extending
the syntax of the key config file and it is still
compatible with original format.

[Nobody/Anonymous]

patch file generated by diff

[Nobody/Anonymous]

Logged In: NO

there was a little bug in the 020+ patch: at lines 146 and
291, the shift at end of line should be 1 instead of 3