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Old 23 April 2003, 19:45   #13
Toni Wilen
WinUAE developer
 
Join Date: Aug 2001
Location: Hämeenlinna/Finland
Age: 42
Posts: 19,682
I found the reason for freeze: demo disables some interrupts and one of the disabled interrupts (EXTER) is needed by UAE to jump between native and m68k code. After disabling the interrupts demo tries to load data files from filesystem which of course stops responding..

No EXTER-interrupt -> filesystem, bsdsocket etc.. all "expansion" devices stop working correctly.

Fortunately (?) there is easy fix, changing interrupt from level 6 to level 2 which is not disabled because A1200/4000 IDE-hardware uses level 2 interrupt and also because there will be (I am absolute sure...) other buggy HD installable demos or games..
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