Add support for R register.
Add screenshots to README.
Add -cassettes flag to specify cassettes dir.
Compile using remogatto's z80. Doesn't yet run very well.
Artificially add 4 to Tstates after each instructions.
Add debug flag for going full-speed.
Advance clock properly in memory module.
gofmt
Use z80 library to disassemble code.
Consolidate source files.
Sort filenames taking into accout numerical order.
Better handling of disks and cassettes directories.
gofmt
Fix numerical string sorting.
Support wide character font.
Throttle updates of disk drive motor.
Support disconnected joystick.
Got Eliminator working.
Leave blank some methods in memory.go
Import remogatto/z80 package
Run go fmt