On 01/07/2020 14:34, Peter Allan wrote: > > https://wiki.mamedev.org/index.php/MAME_and_SIMH > > The latter page looks like it should be just what I am looking for, > but it describes using a VT240 ROM. My vt240 ROM doesn't work. My > vt220 ROM does work, but when I follow the instructions to 'press F3 > to enter setup', nothing happens. > >
The VT220 emulation within MAME is just a skeleton, there is very little code behind it. I did some work on it a few years ago (along with the LK201) and I managed to get it to pass a few self tests but didn't get to the point of displaying anything on the screen. You might want to try the VT240 with the ROMs from archive.org: https://archive.org/download/MAME_0.209_ROMs_merged/MAME_0.209_ROMs_merged.zip/vt240.zip These should be the ones that were used to develop the emulator. Matt _______________________________________________ Simh mailing list Simh@trailing-edge.com http://mailman.trailing-edge.com/mailman/listinfo/simh