Re: [hatari-devel] TOS bootup tester results

[Nicolas Pomarède <npomarede@xxxxxxxxxxxx>]

Le 25/06/2015 00:30, Eero Tamminen a écrit :
> Hi,
>
> I've been running TOS bootup tester as I'm adding TT-RAM testing
> support to it, and noticed bootup issues in several configurations.
>
> I haven't yet verified that they all are real problems instead
> of issues in the tester, except for TOS v3 + 4MB + 0MB TT-RAM issue
> with latest WinUAE CPU core.  With that config, TOS bombs after memory
> check. With more ST-RAM, some TT-RAM, or using VDI mode, TOS v3 works.

Hi

tos v3 expects a TT, which means a 68030 + MMU enabled. Did you enable 
MMU in your tests ?

IIRC I remap the memory banks when TT RAM is used without MMU to get the 
equivalent of 32 bit addressing + simple remapping of the IO region 
(fake minimal mmu like result).
So, this might explain why TT RAM prevents the crash, but the root cause 
is that you need to enable MMU for TOS v3 (as well as 32 bit adressing)

Nicolas