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Vmix was an excellent multitasker. Recently, it's been (partially)
released as opensource, though it's nowhere near as complete as the
old shareware product was. Vmix operated by the simple expedient of
creating a virtual 8086 machine for each simultaneous program the user
wished to run. It worked very well, and I'm honestly surprised it
didn't get more usage than it did. Something like that would be
perfect for a multitasking/multithreading dos. I believe this is the
approach early versions of windows used (pre 3.0 maybe?) It obviously
doesn't solve everything, but if someone were to write such a thing,
and modify the underlying dos implementation to match, you could quite
reasonably create a multitasking/multiuser version of dos that was
probably 60-70 percent compatible with existing dos apps. It'd be a
fun project, though I'm sure my assembly skills aren't up to the task.
- Re: [fpc-devel] Multithreading under... Leif Ekblad
- Re: [fpc-devel] Multithreading under... Michael Schnell
- Re: [fpc-devel] Multithreading under... Tomas Hajny
- Re: [fpc-devel] Multithreading under... Hans-Peter Diettrich
- Re: [fpc-devel] Multithreading under... Michael Schnell
- Re: [fpc-devel] Multithreading under... Sven Barth
- Re: [fpc-devel] Multithreading under... Tomas Hajny
- Re: [fpc-devel] Multithreading under... Sven Barth
- Re: [fpc-devel] Multithreading under... Hans-Peter Diettrich
- Re: [fpc-devel] Multithreading under... Sven Barth
- Re: [fpc-devel] Multithreading under DOS Travis Siegel
- Re: [fpc-devel] Multithreading under DOS Leif Ekblad
- Re: [fpc-devel] Multithreading under DOS Nikolay Nikolov
- Re: [fpc-devel] Multithreading under DOS Leif Ekblad
- Re: [fpc-devel] Multithreading under DOS Sven Barth
- Re: [fpc-devel] Multithreading under DOS Nikolay Nikolov
- Re: [fpc-devel] Multithreading under DOS Marco van de Voort
- Re: [fpc-devel] Multithreading under DOS Hans-Peter Diettrich
- Re: [fpc-devel] Multithreading under DOS Nikolay Nikolov
- Re: [fpc-devel] Multithreading under... Tomas Hajny
- Re: [fpc-devel] Multithreading under... Nikolay Nikolov