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- Path: mail2news.demon.co.uk!canardo
- From: Samuel Devulder <devulder@info.unicaen.fr>
- Newsgroups: comp.sys.amiga.programmer
- Subject: Strange guru B800 8035 || ideas about a mmu.device
- Date: Mon, 15 Apr 1996 11:32:42 +0200
- Organization: GREYC - Informatique
- Sender: devulder@info.unicaen.fr
- Message-ID: <317217BA.39C2@info.unicaen.fr>
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-
- Hi !
-
- I don't know if it is the correct newsgroup for this text, but
- here it is anyhow.
-
- I own a GVP530 with a 68030+MMU@40Mhz (I changed the 68EC030 myself).
- I also use VMM (last version from aminet). VMM seems to work fine (I
- ran xanim and it used about 20Mb of pseudo-ram).
-
- But, when running gcc 2.6.x, I get guru B800 8035. I was told it is
- a bug in gcc 2.6.x so I tried again with gcc2.7.0 (aminet version).
- That version is reported as working well in conjuction with VMM, but
- on my system, I always get that guru when VMM is swapping.
-
- That problem seems to occur only when gcc and vmm are both running.
- But I haven't tested a lot with other memory-eater program.
-
- Can someone tell me what does this guru number mean ? Do you already
- seen it ? How can I get rid of it ?
-
- An now for something (almost) completely different:
-
- What about writing a MMU.device ? That would help in better writting
- programs that uses the MMU. I have noticed that on AMIGA all such
- programs are particularly "badly" written. They use the MMU (and
- it's page-size) for themself only.. thinking they are the only one
- to use that device. You see, the same behaviour as with PC's IRQ
- some times ago :-). That will also lead in a better support of
- different MMUs in a unique way since I was told 680x0 MMU's are
- programmed different according to the CPU. With such a .device,
- ShapeShifer could use 68030 MMUs and in the same time enforcer
- could be run without trouble (the MMU.device could select the correct
- page-size to make them run alltogether); programs won't need any tricky
- hook to run with special MMUs on special boards (alien MMUs). That
- would definitively be a nice .device... anyone has spare-time to work
- on it ?
-
- regards,
- Samuel.
- -------------------------------------------------------------------
- GREYC (URA 1526) Universit de CAEN F-14032 Caen CEDEX FRANCE
- -------------------------------------------------------------------
- e-mail: devulder@info.unicaen.fr
- tel: 31.45.53.19
-