rlm@51: * Low level
rlm@51: 
rlm@51: ** simplifications
rlm@51:  - [ ] remove vba code
rlm@51:  - [ ] remove prof
rlm@51:  - [ ] remove lua
rlm@51: 
rlm@51: ** additional functionality
rlm@51:  - [ ] step the simulator
rlm@51:  - [ ] get CPU data
rlm@51:  - [ ] get RAM / ROM data
rlm@51:  - [ ] save / load state (use savestates)
rlm@51:  - [ ] write current frame
rlm@51:  - [ ] write sound
rlm@51: 
rlm@51: * high level
rlm@51:  - [ ] write vbm files