English Amiga Board - View Single Post - COPPER interrupt causing slowdown

a/b · 01 August 2021, 16:52

Did you try triggering it at any other VPOS, or maybe even in the second half of line $ff?
If the $dff180 test with 100% selfcontained (no regs, all absolute addressing) bare bones interrupt code comes out clean, it definitely looks like to be what was mentioned right away in post #2. Unless it's some weirdness with winuae and/or wdhload.

01 August 2021, 16:52	#16
a/b Registered User Join Date: Jun 2016 Location: europe Posts: 1,043	Did you try triggering it at any other VPOS, or maybe even in the second half of line $ff? If the $dff180 test with 100% selfcontained (no regs, all absolute addressing) bare bones interrupt code comes out clean, it definitely looks like to be what was mentioned right away in post #2. Unless it's some weirdness with winuae and/or wdhload.