basilisk-devel

[B2-devel] (no subject)

[L. <jue...@t-...>]

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Date: Sat, 27 Oct 2001 18:11:45 +0200
Message-ID: <yam...@sm...>
X-Mailer: YAM 2.3 [060] AmigaOS E-Mail Client (c) 1995-2000 by Marcel Beck  http://www.yam.ch/
Subject: MacsBug startup problem
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Hi everybody,

I am working on an interesting startup problem with OS8.1 and Macsbug installed.

About every second time I have my machine turned on, MacOS won't start, instead I get a "unimplemented Trap" error.

So far I have been able to trace the problem back to a global variable at $bb8 about which I cannot find any further information. That variable seems to get initialized by ROM to $ffffffff. 
Somewhere later in the boot process, that variable is set to a valid address.

MacsBug checks some bits in a byte ($bb8) + $42 and, if non-zero, calls FSMgr trap, leading to the error described above.
As a workaround, I patched MacsBug to always return zero at the $bb8 check, and so far everything seems to work.

Does anybody know what that variable at $bb8 is about and why it isn't initialized properly ???


Regards,
Jürgen
-- 
Jürgen Lachmann jue...@t-... Blaubeuren Germany

[B2-devel] (no subject)

[Gwenole B. <gb....@fr...>]

Hi,

I placed new convenience sources (CVS snapshots) and precompiled=20
binaries at:
<http://www.gibix.net/projects/basilisk2/>

User-visible changes since 2005/11/22:
* Handle up to 1 GB of Mac memory
* Handle MacOS idle wait ("idlewait" prefs item)
* Fix a crash with the AppleShare extension
* Improve SLiRP network emulation performance
* Portability fixes to IRIX/mips, Solaris/SPARC
* MacOS X:
   o Port to MacOS X for Intel, including the JIT
   o Add a primitive graphical preferences editor
   o Fix clipboard (copy/paste of text from/to the host OS)
   o Fix external filesystem (file infos, invisible folders, creation=20
times)
   o Fix SLiRP network emulation (workaround MacOS X bugs)
* Windows:
   o Add SLiRP network emulation ("ether slirp")
   o Add TAP-Win32 network emulation ("ether tap")
   o Fix CD-ROM auto-detection ("pollmedia" now works)
   o Improve GUI for network configuration

Bye,
Gwenol=E9.=

[B2-devel] (no subject)

[Admin <abb...@gm...>]

i have a xtra folder but i dont know what to do please help

Re: [B2-devel] (no subject)

[Christian B. <cb...@st...>]

Hi!

On Sat, Oct 27, 2001 at 06:12:12PM +0200, J=FCrgen Lachmann wrote:
> Does anybody know what that variable at $bb8 is about and why it isn't
> initialized properly ???

This one is missing from my list. I have no idea what it does. From your
description it sound like one of those "global data area" pointers.

Bye,
Christian

--=20
  / Coding on PowerPC and proud of it
\/ http://www.uni-mainz.de/~bauec002/

Re: [B2-devel] (no subject)

[Max H. <ma...@qu...>]

At 15:41 Uhr +0100 29.10.2001, Christian Bauer wrote:
>Hi!
>
>On Sat, Oct 27, 2001 at 06:12:12PM +0200, J=FCrgen Lachmann wrote:
>>  Does anybody know what that variable at $bb8 is about and why it isn't
>>  initialized properly ???
>
>This one is missing from my list. I have no idea what it does. From your
>description it sound like one of those "global data area" pointers.

At least in my old copy of the "Macintosh Atlas", I only find this entry:

=2E..
$0BB3 =3D 2995 [Byte]      $FF to turn off device defined StyleExtra
$0BB4 =3D 2996 [12 bytes]  Reserved for future use
$0BC0 =3D 3008 [Word]      Supposed to represent FlEvtMask
=2E..

So unless it was changed after that Mac II ROM (the last covered in 
that book), it seems this area is unused.


Max
-- 
-----------------------------------------------
Max Horn
Software Developer

email: <mailto:ma...@qu...>
phone: (+49) 6151-494890

Re: [B2-devel] (no subject)

[Christian B. <cb...@st...>]

Hi!

On Mon, Oct 29, 2001 at 06:54:31PM +0100, Max Horn wrote:
> At least in my old copy of the "Macintosh Atlas", I only find this entry:
> ...
> $0BB3 = 2995 [Byte]      $FF to turn off device defined StyleExtra
> $0BB4 = 2996 [12 bytes]  Reserved for future use
> $0BC0 = 3008 [Word]      Supposed to represent FlEvtMask
> ...

Mine is longer: :-)

FDevDisable     BB3  $FF to disable device-defined style extra
CommToolboxGlob BB4  Pointer to CommToolbox globals
ShutDwnQHdr     BBC  List of installed shutdown procedures
NewUnused       BC0  Used to be FlEvtMask   

Bye,
Christian

-- 
  / Coding on PowerPC and proud of it
\/ http://www.uni-mainz.de/~bauec002/