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Rep:Re: [f-cpu] TLB right
- To: <f-cpu@seul.org>
- Subject: Rep:Re: [f-cpu] TLB right
- From: "Nicolas Boulay" <nicolas.boulay@ifrance.com>
- Date: Mon, 19 Aug 2002 08:17:24 GMT
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- Delivered-To: f-cpu@seul.org
- Delivery-Date: Mon, 19 Aug 2002 04:17:37 -0400
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- Sender: owner-f-cpu@seul.org
F-cpu pointer size are determined and are fixed at 64 bits ! It's not in
a chunk and have nothing to do with it. Pointer use the bigger size
available for integer so 64 bits, what ever chunck could handle the
register bank.
nicO
-----Message d'origine-----
De: Yann Guidon <whygee@f-cpu.org>
A: f-cpu@seul.org
Date: 16/08/02
Objet: Re: [f-cpu] TLB right
hi,
nico wrote:
> I beleive it's none sense because superuser code could always change
tlb
> entries. And to avoid sending a kernel space adresse to a user call,
you
> only have to check the pointer MSB bit...
i don't want to step into your high level discussions,
but ... F-CPU pointers are not 32 bits. F-CPU pointers
(in userland) fit in a "chunk" and it's defined as
"minimum 64 bits". Please avoid problems and don't do
like other architectures : F-CPU pointer sizes are not
determined.
> nicO
WHYGEE
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