Re: [MiNT] 040/060 MMU tree builder beta available (fwd)

[Odd Skancke <oskancke@online.no>]

My reply to mail #3..

---------- Forwarded message ----------
Date: Sat, 29 May 1999 02:39:31 +0000
From: Odd Skancke <oskancke@online.no>
To: Martin Nightowl Byttebier <tos4ever@ping.be>
Subject: Re: [MiNT] 040/060 MMU tree builder beta available


Hi, Martin,

On Sat, 29 May 1999, Martin Nightowl Byttebier wrote:

> Hello Odd,
> 
> on Fri 28-05-1999 23:17 you wrote:
> 
> 
> >> 
> >> I also placed cache_of between set_mmu.prg and mint.prg.
> >
> > This is not necessary...
> 
> Euch, without cache_of the system stops booting just before it tries to 
> laod MiNT.
> >
> > You can not use min_cach.prg, as it turns off the MMU, effectively
> >destroying memory-protection! The only reason why this works at all, is
> >that the memory mapping is 1:1, that is, logical and physical addresses
> >are the same. When I get this (if I get this) ST/TT RAM splitting
> >implemented, there's no way you can use anything that turns off the PMMU.
> >You might as well run as mintnp.prg.
> 
> So that's maybe the reason that every program I've tried so far worked but 
> why says Mintsetter memory protected?
> Profiles sees the memory also as protected.
>  
> PROFILE v2.22 by Linnhe Computing - Mark S Baines (c) 1994, 1995, 1997
> 
> Memory
> ~~~~~~
> ST RAM installed:                          14 Mb
> Total ST TPA memory available:             14620932 bytes (99.59%)
> Total ST TPA memory used:                  4192516 bytes (28.55%)
> Total ST TPA memory free:                  10428416 bytes (71.03%)
> Largest ST TPA memory block:               10428416 bytes (71.03%)
> Virtual memory installed:                  Yes - Unknown manager
> Total virtual TPA memory free:             109182976 bytes
> Largest virtual TPA memory block:          109174784 bytes
> Displayed screen size:                     995328 bytes (0.10%)
> Screen area memory:                        2145386496 bytes (30.27%)
> System area memory:                        59132 bytes (0.04%)
> Memory management unit (MMU) is protected: Yes
> Long stackframe:                           Yes
> 

 I have to admit.. this beats me :) Does MMU is protected mean its turned
on? If so, does it know how to check that on a 040 cpu?

> 
> Report generated on:  May 29, 1999  01:40:46
> PROFILE v2.22 - End of report
> 
> >
> >and I think that I should post your previous mail and my response to this
> >to the mint-list. can we?
> 
> Please do so.
> 

 Okie, I'll forward it all to the mint-list.. I'm out of ideas now...



 Odd Skancke - ozk@atari.org