[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: [MiNT] Re[2]: Re[2]: 68030 MMU crash course?

To: "Guillaume" <guillaumed@users.sourceforge.net>
Subject: Re: [MiNT] Re[2]: Re[2]: 68030 MMU crash course?
From: Andreas Schwab <schwab@suse.de>
Date: Fri, 27 Oct 2006 00:17:20 +0200
Cc: mint@fishpool.com
Delivered-to: fnaumann@mail.boerde.de
In-reply-to: <49840.87.89.46.186.1161896100.squirrel@mail.anyware-tech.com> (Guillaume's message of "Thu, 26 Oct 2006 22:55:00 +0200 (CEST)")
List-help: <mailto:ecartis@lists.fishpool.fi?Subject=help>
List-id: <mint.lists.fishpool.fi>
List-owner: <mailto:tjhukkan@fishpool.fi>
List-post: <mailto:mint@lists.fishpool.fi>
List-subscribe: <mailto:mint-request@lists.fishpool.fi?Subject=subscribe>
List-unsubscribe: <mailto:mint-request@lists.fishpool.fi?Subject=unsubscribe>
References: <188640904.20061019143010@hol.gr> <je4pu01pov.fsf@sykes.suse.de> <1677101202.20061019194218@hol.gr> <c6533ef60610191132j295eccb2h739d81557c159029@mail.gmail.com> <1009959817.20061019215604@hol.gr> <1161294501.4537f2a537851@imp2-g19.free.fr> <49840.87.89.46.186.1161896100.squirrel@mail.anyware-tech.com>
Sender: mint-bounce@lists.fishpool.fi
User-agent: Gnus/5.110006 (No Gnus v0.6) Emacs/22.0.50 (gnu/linux)

"Guillaume" <guillaumed@users.sourceforge.net> writes:

>> Please also note 68 040 and 68 060 do not support emulation of access.
>> This approach won't work on those processors... Or at least will need
>> more tricks to pass this limitation.
>
> Could you elaborate on that? Then how would you implement virtual memory:
> you must call code on R/W accesses to illegal areas, mustn't you?

On the 680[46]0 the faulting insn is restarted.  So unless you have
changed the mapping to allow access the exception will happen again.

Andreas.

-- 
Andreas Schwab, SuSE Labs, schwab@suse.de
SuSE Linux Products GmbH, Maxfeldstraße 5, 90409 Nürnberg, Germany
PGP key fingerprint = 58CA 54C7 6D53 942B 1756  01D3 44D5 214B 8276 4ED5
"And now for something completely different."

References:
- [MiNT] 68030 MMU crash course?
  - From: "George (HOL, IMAP)" <ggn@hol.gr>
- Re: [MiNT] 68030 MMU crash course?
  - From: Andreas Schwab <schwab@suse.de>
- [MiNT] Re[2]: 68030 MMU crash course?
  - From: "George (HOL, IMAP)" <ggn@hol.gr>
- Re: [MiNT] Re[2]: 68030 MMU crash course?
  - From: MiKRO <miro.kropacek@gmail.com>
- [MiNT] Re[2]: Re[2]: 68030 MMU crash course?
  - From: "George (HOL, IMAP)" <ggn@hol.gr>
- Re: [MiNT] Re[2]: Re[2]: 68030 MMU crash course?
  - From: Xavier Joubert <xavier.joubert@free.fr>
- Re: [MiNT] Re[2]: Re[2]: 68030 MMU crash course?
  - From: "Guillaume" <guillaumed@users.sourceforge.net>

Prev by Date: Re: [MiNT] Re[2]: Re[2]: 68030 MMU crash course?
Next by Date: [MiNT] ?long long long? is too long for GCC in stdlib.h
Previous by thread: Re: [MiNT] Re[2]: Re[2]: 68030 MMU crash course?
Next by thread: Re: [MiNT] 68030 MMU crash course?
Index(es):
- Date
- Thread