English Amiga Board - View Single Post - UAE CPU core based 680x0 tester/validator

dirkwhoffmann · 26 January 2020, 18:02

Hi Toni,

great to hear that a cputester update is ready

. I’ll continue to test my CPU asap and report any issues (if there should be any).

While waiting for the update, I've spent my time debugging interrupt timing in vAmiga. One of my test cases might be of interest for you because it shows a discrepancy between UAE and the real machine.

It’s described in more detail here

https://github.com/dirkwhoffmann/vAmiga/issues/274

It’s related to the exact timing between a write to INTREQ and the point in time where the CPU notices a change on its IPL lines.

26 January 2020, 18:02	#49
dirkwhoffmann Dirk Hoffmann Join Date: Jun 2019 Location: Karlsruhe Posts: 33	Hi Toni, great to hear that a cputester update is ready . I’ll continue to test my CPU asap and report any issues (if there should be any). While waiting for the update, I've spent my time debugging interrupt timing in vAmiga. One of my test cases might be of interest for you because it shows a discrepancy between UAE and the real machine. It’s described in more detail here https://github.com/dirkwhoffmann/vAmiga/issues/274 It’s related to the exact timing between a write to INTREQ and the point in time where the CPU notices a change on its IPL lines.