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F1 World Grand Prix for Dreamcast crashes at start of race #267

Open GoogleCodeExporter opened 9 years ago

GoogleCodeExporter commented 9 years ago 
F1 World Grand Prix crashes when starting a race, after the track fly-over.

Console window error:
[GPF]Unhandled access to : 0x0

See pic for full console window, crash only occurs with dynarec enabled.

Tested on r78, PAL GDI version used.

Original issue reported on code.google.com by matbur...@gmail.com on 13 Oct 2010 at 11:45

Attachments:

GoogleCodeExporter commented 9 years ago 
Oh noes, you made by code crash. Tsk.
I'd guess sh4rec, or some other random function pointer. I love these bugs, so 
easy to debug !

Original comment by drkIIRaziel on 16 Oct 2010 at 11:40

GoogleCodeExporter commented 9 years ago 
Can you check with dynarec disabled ?

Original comment by drkIIRaziel on 20 Oct 2010 at 10:10

GoogleCodeExporter commented 9 years ago 
Recheck with r79 !

Original comment by drkIIRaziel on 20 Oct 2010 at 10:34

GoogleCodeExporter commented 9 years ago 
[deleted comment]
GoogleCodeExporter commented 9 years ago 
Okay, this is 99% the same as issue 291.

Original comment by drkIIRaziel on 21 Oct 2010 at 12:25

GoogleCodeExporter commented 9 years ago 
Okay, slightly adjusting the timing makes the problem go away. Now, THATS 
interesting, ins't it ? here's our first ever 'omg weird timing wtf whut' bug 
;p. Sh4int timing makes it go away. Prolly related to the lowfps issue it has.

Original comment by drkIIRaziel on 21 Oct 2010 at 8:54

GoogleCodeExporter commented 9 years ago 
Still bugge(re)d in r84.

Original comment by matbur...@gmail.com on 27 Oct 2010 at 6:16

GoogleCodeExporter commented 9 years ago 
[deleted comment]
GoogleCodeExporter commented 9 years ago 
*delete previous comment*

Forgot to include the drkprv.dll earlier ;)

Re-download again..

Installation:
All you have to do is to download a pre-compiled build of r135 and overwrite 
the  old contents with the new ones included in the archive.

Original comment by Dimitris...@gmail.com on 5 Jun 2011 at 6:22

Attachments:

GoogleCodeExporter commented 9 years ago 
It seems fixed a long time ago. The game works fine on r130 - r135 and new 
"tst.zip " without crash.

Original comment by N2008eo...@rambler.ru on 5 Jun 2011 at 9:00

GoogleCodeExporter commented 9 years ago 
That's weird , because guess how i fixed it : by catching the exception which 
happens every time you attempt to skip the intro that plays just before the 
level has finished loading ;)

Anyway..Its a tile accelerator dma issue.
For some odd reason it spawns a "vertex proccessing type" op while the previous 
op was either "end list type" or nothing , which
means that the vertex proccessing callback is null at the time that it has to 
be called ...and guess what happens ;);)

But its definitely not impossible that different timings(on an old pc for 
example) would result in completely different behavior...

Original comment by Dimitris...@gmail.com on 5 Jun 2011 at 10:41

GoogleCodeExporter commented 9 years ago 
Oh , and , this game seems to trigger another issue as well.

Not only it does the above(jut like Sega bass fishing) but some times it fails 
in an assertion which only should pop up when the next ta list is already 
allocated.

Original comment by Dimitris...@gmail.com on 5 Jun 2011 at 10:44

GoogleCodeExporter commented 9 years ago 
"Those" issues are most likely related to the timing hack-ups done so far. This 
includes DMAs and the GD-ROM slowdown hack-fix drk did some time ago.

You can try verifying this... but if it's verified that this is the cause, then 
there's no point in creating a workaround since other stuff will break.

Original comment by Mr.PsyMan on 5 Jun 2011 at 11:04

GoogleCodeExporter commented 9 years ago 
[deleted comment]
GoogleCodeExporter commented 9 years ago 
It was fixed by r114.

Problems existed before r113. (It happens in "championship mode").
Interesting thing. In r113 when I change the point of view and got to cabine I 
see the dark shadow that covers some areas of screen. Sometimes  happens crash.

Original comment by N2008eo...@rambler.ru on 5 Jun 2011 at 11:28

Attachments:

GoogleCodeExporter commented 9 years ago 
[deleted comment]
GoogleCodeExporter commented 9 years ago 
Still crashes with r139.

Original comment by x.ran...@gmail.com on 20 Oct 2011 at 12:34

GoogleCodeExporter commented 9 years ago 
Use the dll in the patch attached above.

Original comment by Dimitris...@gmail.com on 24 Oct 2011 at 3:49