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QEMU on Windows - Windows 98 - CPU too quick ?

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First post, by daerlnaxe

Posted on 
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Hi,

I work on projects with qemu on windows, i don't know why but on some games like fallout or commando i have a problem on cinematics. On fallout music seems normal but i have a freeze every n seconds. I well identified on commando, before the freeze sound is too quick.

I tried to use grab, vm is patched with pacher9x. With grab it's worst. I use cpu-z with normal mode i have 3.6g Ghz to 4Ghz. With Grab, i don't know why but i reach 6Ghz... i ask myself if qemu doesn't use all core.

In all cases i can't see for a while how to deal with it. I didn't notice any problem on starcraft before.

I ask myself if a software able to regulate cpu can be used without problem from the guest.

Reply 1 of 1, by wadrasil

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Try to use WHPX/KVM as an accelerator, Fallout1 and fallout2 use a specific video format that does not work well with Qemu's TCG.
Also using an HLT idler like Dosidle HLTIDL or Eidl will help. Having an idler setup in dos and windows (AMNHLTM or Rain) can help also.

SBEMU and VSBDA work in Qemu with the intel-hda in dos so that could help.

Also, SDL is the best bet for display driver GTK has issues with sound and video on windows and dos games in general.

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