Hello!
I am about to finish my tutorial on clearing interrupt request.
In the end it became an interesting (I think) research on the internal working of 040/060 togehter with Amiga hardware.
To refine my conclusion I would like to have some more test performed.
So please, if you have a 060/040 Amiga, download the following small archive (3K) and perform the test. They will only take you few minutes.
Instructions are in the archive.
http://www.di.univaq.it/forlizzi/tests_200505.lha
thanks to all who will be so kind to help me!