Re: [hatari-devel] Re: RAM detection issue with VDI (was HDDriver issues with WinUAE CPU core)

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On 11 Jan 2015 at 20:27, Eero Tamminen wrote:

> Hi,
>
> On sunnuntai 11 tammikuu 2015, Nicolas Pomarède wrote:
> > Le 11/01/2015 17:53, Roger Burrows a écrit :
> > >> This is pretty bogus for a TT or a Falcon ... and I believe this issue
> > >> was related to running TOS 3.06, so must have been TT emulation ...
> > >
> > > Just to make it 100% clear what I was referring to: only ST-compatible
> > > resolutions use 32K.  TT high, medium, low & all Falcon resolutions use
> > > more memory.  So always setting phystop to memtop+32K does not seem
> > > right ...
> >
> > ok, but in that case that's not what the actual code does : it sets
> > memtop to *at least* 32k. If screensize is higher than 32k in vdi, then
> > it's taken into account.
>
> Roger was referring to phystop.   But old TOS versions didn't work
> if gap between memtop -> phystop is larger.
>
Not to belabour the point, but what about setting the gap according to the
version of TOS?  Older versions expect 32K, newer versions ?  And I don't think
EmuTOS should care, but if it does, let me know & I'll investigate.

Roger




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