RE: [plex86] Performance enhancement: elminiating mode and context

[Colin Davidson]

Drew asked:   > Colin, do you know what windows does when it redirects this (read/write > from/to b80000)in "DOS" sessions?   'Fraid not. I wouldn't be completely surprised if they were intercepting BIOS calls and drawing a "correct" screen from that. Does anyone know if any DOS graphical VGA apps (games?) will run in a DOS box?   I do wonder if this is an important issue in the big scheme of things, though. For 99.9...% of Windows uses, it will only occur during system startup (a long time for windows, admittedly, but the startup doesn't touch the screen much) and then we can implement a virtual SVGA device driver and optimize that for Plex86 activity. That doesn't handle DOS-type OSes, but are they important?   Not that I'm trying to stop anyone if it appeals to them, I just am not that interested myself.   Colin