GXemul Code2

Making sure that when invalidating virtual addresses in the dyntrans cache, take into account that not all CPUs can use all 64 bits for virtual addresses. This fixes a very old bug which affected Glatt MU/MK.

Minor updates to the TODO.

Adding a section to the documentation about how to use the emulator as a debugger (breakpoints, unassembling, single-stepping, inspecting registers, and so on).

Minor update regarding the new framework.

Moving new framework stuff to the end of the index.

Minor update; moving old framework before new framework in the SYNOPSIS part.

i960 experiments...

Fix URL.

Minor TODO updates.

Implementing the i960 "mov reg,reg" instruction.