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Old 08 October 2014, 16:16   #24
Toni Wilen
WinUAE developer
 
Join Date: Aug 2001
Location: Hämeenlinna/Finland
Age: 42
Posts: 19,512
Many old Athlon dual core CPU based systems had timer bug that caused QueryPerformanceCounter() to return different values depending on which core executed the call. This caused all kinds of mysterious side-effects.

Easiest test was to force WinUAE to use only single core (windows task manager -> affinity -> single checkbox).
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