> Phil, you think those changes will be applied in the next MAME version?
I'm concentrating more on improving documentation and understanding of the hardware than making actual source changes at the moment. I've written a special monitor program for the MK4/Z-Plus PCB that will allow me to communicate with it via the serial port and perform actions such as reading/writing memory and Zeus state, dumping frame buffers and patching game code in RAM on the fly. If it works (as I'll find out next week when I get my supergun setup working), this will be a massive boon to the emulation effort.
> While on the subject, there is also another annoying stuff - when pressing "W" key > (WSAD are directions for most people) a box pops up and displays "offs = 000000" and > the video scrambles. Is there a way to fix/disable that as well?
That's the wave RAM viewer. It ought to be mapped to another key combination or disabled.