Re: [hatari-devel] Valid memory amount?

[Eero Tamminen <oak@xxxxxxxxxxxxxx>]

Hi,

On 11/20/20 12:12 AM, Nicolas Pomarède wrote:
> Le 19/11/2020 à 23:04, Eero Tamminen a écrit :
> >  > OK for it then, but does it really make sense to allow 512 for 
> > falcon ?
> >
> > Does it really make sense to allow 128KB & 256KB
> > for ST/STE/TT? :-)
>
> Well yes, because the MMU can be configured for these RAM configuration 
> without specific HW modifications. There might not have been real 
> machine with 128 KB, but it seems there was an early 260ST with 256 KB.
>
> >  > AFAIK the min config was 1M
> >
> > 1MB might be a minimum shipped Falcon config, but
> > according to comments in Hatari code, 512K has
> > been tested to be also supported, see:
> > https://git.tuxfamily.org/hatari/hatari.git/tree/src/stMemory.c#n368
>
> Does it work with normal TOS4 or a patched one ? I don't remember if 
> TOS4 expect at least 1MB in falcon mode ?

Well, at least it boots fine and its desktop seems
to work fine in Hatari with 512KB RAM, regardless
of whether MMU is enabled or not, when using:
	"--fast-boot off --patch-tos off"


	- Eero