Hi Mark, thanks for your reply!
> I wonder if this is related to the fact that DECwindows switches the > > screen resolution of the qvss framebuffer. When the system initially > > starts, the black qvss windows only occupies part of the Xorg screen, > > but when DECwindows starts, it expands the window to the full > > resolution of the X display. > > I haven't seen that. The QVSS device simulation specifically simulates > the very basic QVSS framebuffer which is constantly at 1024x864 and > since that is what the original QVSS was capable of interfacing with, > there is no provision for dynamically changing those dimensions. > This was actually me not looking closely. DECwindows puts the retro black and white pattern onto the screen which perfectly blends with the -retro background of Xorg, so the resolution has not changed at all, I just failed to see that the QVSS window is smaller than the actual screen (and the jumping mouse kind of concealed that further). > During normal system operation with V4.4-0, the simulator sometimes > > halts with messages like "Invalid argument, PC: 806EEB6A (MOVL > 4(SP),(SP))" > > or "Invalid argument, PC: 00083C16 (BEQL 83C35)". If I type "c" at the > > "sim>" prompt, the system continues to run. Unfortunately, I could not > > figure out how to cause this issue. > > I can't yet either. I don't see this with the current code, but the most > recent commits (today) in the github/simh/simh master branch will produce > more contextual error messages that should help tracking down the root > cause. > Please pick up the latest code and if you see messages like this again, > let me > know directly or create an issue at https://github.com/simh/simh/issues Will do! > > Running DECwindows on a remote X Server (Xorg or Xquartz) kind of works, > > but for some reason, only some of the DEC fonts which I've extracted > using > > getbdf from the VMS X Server are listed in xlsfonts. In particular, the > menu > > font that VAX LISP uses is missing. > > I can't speak to why your local X server might not interpret these fonts, > but > there may have been some DEC specific font format details which never made > it back to Xorg. Hopefully you won't need to deal with at all once you can > use the QVSS to as a display with DEC's X server leveraging its local > fonts. > I still hope to somehow get the DEC fonts into Xorg as I really like them beautiful colors :) Cheers, Hans
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