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I recently found old 3.5" floppies with programs I've written around 1990 in Borland's Turbo Pascal.
These programs used Borland's Graphics Interface (BGI) and the corresponding driver files (*.bgi) for handling the many different graphics modes we had back in those days (CGA, EGA, VGA, SVGA and higher).
These *.bgi driver files are on those disks, too and executables of my programs, too.
Now I made an MS-DOS 6.22 VM and was trying one of my old programs but had no luck (got a "Runtime error 200").
Now, I found traces that this is a Dvicision by zero error and quite common with Turbo Pascal compiled EXE programs (see https://www.pcmicro.com/elebbs/faq/rte200.html for example). Unfortunately, all these patch programs don't exist anymore, are not longer downloadable.
But I was wondering if it's worth the effort? Would a UTM MS-DOS 6.22 VM be in principle be able to switch into a graphics mode? Which one? Does it support all the graphics modes from back then? And more? And with Borlands .bgi drivers, too?
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I recently found old 3.5" floppies with programs I've written around 1990 in Borland's Turbo Pascal.
These programs used Borland's Graphics Interface (BGI) and the corresponding driver files (
*.bgi
) for handling the many different graphics modes we had back in those days (CGA, EGA, VGA, SVGA and higher).These
*.bgi
driver files are on those disks, too and executables of my programs, too.Now I made an MS-DOS 6.22 VM and was trying one of my old programs but had no luck (got a "Runtime error 200").
Now, I found traces that this is a Dvicision by zero error and quite common with Turbo Pascal compiled EXE programs (see https://www.pcmicro.com/elebbs/faq/rte200.html for example). Unfortunately, all these patch programs don't exist anymore, are not longer downloadable.
But I was wondering if it's worth the effort? Would a UTM MS-DOS 6.22 VM be in principle be able to switch into a graphics mode? Which one? Does it support all the graphics modes from back then? And more? And with Borlands
.bgi
drivers, too?Thanks for your hints/tips/knowledge on this! 🤗
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