GXemul Code2

Oops, forgot to add machine_rpi.cc back in 20131006.

Beginning to implement very slow THUMB interpretation (not dyntrans). Horrible performance-wise, but better than nothing.

blx means function call, so let us trace.

Only look at the address, not the T flag, when deciding whether to disassemble as ARM or THUMB.

Continuing on THUMB stuff.

Continuing on ARM THUMB disassembly.

Implement some more THUMB disassembly. Fail rather than silently treating ARM instructions beginning with 0xf as nops. Allow the emulator to start in THUMB mode (lowest pc bit set).

Comment.

Fixing broken "print" command. Oops.

Update.