[openbeos] Re: openbeos Digest V8 #114

  • From: Travis Geiselbrecht <geist@xxxxxxxxxx>
  • To: openbeos@xxxxxxxxxxxxx
  • Date: Sat, 28 Jun 2008 02:59:12 -0700

On Jun 27, 2008, at 12:50 PM, François Revol wrote:
ARM920T for ex has one, 940 doesn't.
While it's possible to support mmu-less versions, in practice it'll
be
much work for not much gained.
Linux doesn't run on those (only uCLinux), and I don't think WinCE
does.

Most user-interactive devices have one with an mmu anyway.

Yep, however if you want anything reasonably close to a PC
performance
wise, you're going to want to target an arm11 or above. arm9s have
serious restrictions on how the mmu/cpu cache works, and generally is
somewhat inefficient running systems with lots of address spaces
(context switches are pretty expensive).

Well it's what the OpenMoko FreeRunner uses:
http://wiki.openmoko.org/wiki/Neo_FreeRunner_GTA02_Hardware
as well as GP2X:
http://en.wikipedia.org/wiki/GP2X

Yep, say hello to 3 years ago.

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