[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.
- References:
- [openbeos] Re: openbeos Digest V8 #114
- From: François Revol
Other related posts:
- » [openbeos] Re: openbeos Digest V8 #114
- » [openbeos] Re: openbeos Digest V8 #114
- » [openbeos] Re: openbeos Digest V8 #114
- » [openbeos] Re: openbeos Digest V8 #114
- » [openbeos] Re: openbeos Digest V8 #114
- » [openbeos] Re: openbeos Digest V8 #114
- » [openbeos] Re: openbeos Digest V8 #114
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
- [openbeos] Re: openbeos Digest V8 #114
- From: François Revol