The first running instructions

Meanwhile, the first instructions are executed by the emulator.

The hardware stack is working (not the software stack extension though). A lot of move instructions run fine, jump and branch instructions, too. The do instruction is already supported aswell.

I have to rethink the implementation of the registers, though. It turns out that all those different operands in the move instructions are quite complicated, some of them place the data in the MSBs of the register (fractional numbers), some of them in the LSBs (integers).

It may get clearer to me once I started implementing more of the ALU operations. The only supported ones at the moment are bit manipulation instructions and comparison. The CCR bits get updated as they should and Bcc already works.