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Old 30 August 2015, 19:42   #338
Toni Wilen
WinUAE developer
Join Date: Aug 2001
Location: Hämeenlinna/Finland
Age: 43
Posts: 21,557

I also noticed A2386SX + normal AT IDE hangs when attempting to boot from dos install disk. Normal IDE read command is executed but it seems no one is listening for the interrupt (interrupt 14). Previous boot phase IDE accesses hang if interrupt is disabled = interrupt probably is working correctly.

A2286 works.

EDIT: Must be something to do with ISA interrupts being edge triggered. It works if I only generate single interrupt request per command.

Last edited by Toni Wilen; 30 August 2015 at 19:54.
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