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Old 16 August 2012, 09:04   #44
Toni Wilen
WinUAE developer
 
Join Date: Aug 2001
Location: Hämeenlinna/Finland
Age: 42
Posts: 20,222
Quote:
Originally Posted by mc6809e View Post
Discussion of autovector operation is found in appendix B of the MC68000 reference manual.
I was too tired yesterday, I forgot that Amiga does not use autovectored interrupts, it uses "normal" interrupt acknowledge cycles.

Normal: normal memory cycle and fetches exception vector (from 0xfffff0 + interrupt number * 2 = end of ROM in Amiga)
Autovectored: E cycle and fetches interrupt number.
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