Version 1.1, 2008-02-16
Now all 65C02 opcodes but WAI and STP should work. CPU loop now stays in do_cpu so
should be a bit faster. Pause no longer a tight spinwait (what was I thinking), but
a pthread signal to wake CPU thread. Determined that my "broken" hello world program works
because it's using the BASIC ROM area as RAM which on the Replica is actually ROM!
I treat the entire 64K as RAM, so I'm now calling this a feature.

Version 1.01, 2008-01-15
added all but last 7 65c02 only opcodes, fixed ZP indirect, ZP,Y addressing.
Many bugs fixed, including one major one that somehow didn't make it into 1.0.
hello world still works, confirmed that it prints a string of 7's on the real thing.

Version 1.0, 2008-01-14 initial release
