Re: [hatari-devel] WinUAE CPU core cycle-exact option impact for 68000

[Thorsten Otto <admin@xxxxxxxxxxx>]

On Freitag, 17. Januar 2020 19:18:20 CET Christian Zietz wrote:

> Check that you don't load any AUTO folder programs or ACCs

 

There were no auto-folder programs active. As ACC, only st-guide was active, but that should not have any effect since no AES calls are done during the test. Just to be sure, i tried again with everything disabled, and still get the same result.

 

>Also check (e.g. via "git status" or by using a

>snapshot from SF) that your EmuTOS build does not contain any debug code

>added by you.

 

It does not. Only thing that i regularly change is to disable the boot info screen because i dont need that for emulators.

 

 

Edit: aaargs. Looks like i accidently compiled the emutos version i was testing with, with gcc 9.2. With the snapshot version, i get 39 loops with cycle-exact, and 51 without. So it was actually a bad coincidence, that i also got 39 loops with the other version in non-cycle-exact mode. Now i have to figure out why gcc 9.2 apparently generates even worse code. The code looks really strange, i haven't even found the innermost loop yet.