[haiku-development] Re: In My Infinite Free Time

  • From: Johannes Wischert <johanneswi@xxxxxxxxx>
  • To: haiku-development@xxxxxxxxxxxxx
  • Date: Mon, 20 Apr 2009 17:59:25 +0200

On Mon, Apr 20, 2009 at 3:58 PM, François Revol <revol@xxxxxxx> wrote:
>> > Though I recall reading not all ARM chips have all of them.
>> > ie. some might actually only have the TLBs like what PPC does...
>>
>> ARM7 doesn't have either MMU or TLB.  You can only use physical
>> memory.
>>
>> But it's still worth supporting, as you would be able to run on a lot
>> of really low-power hardware.
>>
>> Linux has the option to run with no MMU.  This was done as a patch
>> for
>> a long time, but I understand that it was accepted into the mainline
>> kernel, so now it's a config option.
>
> Linux is a slimy thingy that is overstretched to fit both 16bit cpu
> (ELKS) and Crays :P
>
> I'd rather have it well done with MMU than hacked in without.
>
> François.
>
>

I will port it to MMU arms only. There is quite some interresting
hardware without MMU but must of these don't even have enough RAM
(haiku on the nintendo ds for example would be funny ;) but 80mhz no
mmu and only 4mb ram (expandable to 36 or something ) are probably not
enough ;) )

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