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Re: Winevdm

in PC Emulation
Might help to see a trace. See the instructions at https://github.com/otya128/winevdm/blob/maste … E/bug_report.md .

Re: Winevdm

in PC Emulation
filipetolhuizen wrote on 2020-03-01, 23:05: Uninvited is crashing after playing any sound with the latest dev build. Without sound it runs fine. It doesn't crash for me. Just be sure that in Sound Setup, Windows sound is selected because none of the others will work.

Re: Protected Mode, IRQs and stack map

in PC Emulation
That's right AFAICT. Except for the ES descriptor typo and ESP+4 should just be ESP, adjusting the others by 4 too. Oh, also the ESP and SS should only be pushed if there's a privilege change. If it's in V86 mode you have to push all the segments and if it's a task gate everything is plopped into …

Re: Why is Win 9x compatibility/emulation so difficult?

in Milliways
Many win95 programs use apis which aren't supported on NT. For one example, MapSL and MapLS which convert selector:offset addresses to linear and vice versa. NT only supports selector:offset addresses in ntvdm which is not compatible with win32 programs. The other major issue is win32 programs which …

Re: 64-bit dynamic_x86 (patch)

time for core haxm :) I would love to see an optional hardware-assisted hypervisor core in DOSBox! :happy: Unfortunately, the DOSBox developers and maintainers have stated that they won't ever be going the virtualization route, for philosophical reasons. It's a shame, though. Having something like …

Re: x86 'CPL = CS.RPL' lines in the dev manuals?

in PC Emulation
You can't depend on CS RPL being the same as CPL. For example when you switch into protected mode CS will be whatever it was before and the lowest 2 bits will probably not be 0 (but the DPL of SS will barring LOADALL or SMM tricks). There is BIOS code that requires this to work properly. I think the …

Re: Winevdm

in PC Emulation
Go to https://ci.appveyor.com/project/otya128/winevdm click on "Environment: THIS_BUILD_IS_RECOMMENDED__VCXPROJ_BUILD=1" then Artifacts.

Re: 80286 test suite?

in PC Emulation
Don't know of EMS managers on a 286 though. 286 can't emulate EMS like the 386 can so it's only available with an EMM adapter like for XTs or a chipset that has built in support like the NEAT.

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