VBA-24-m: Slowed down emulation causing desyncs

[GoogleCodeExporter]

In GBC Wario Land 2, sometimes the emulation slows down for no apparent reason 
when playing, to the point where the game runs at less than 1 FPS. Savestates 
made while the game was slowed can't be fixed, even when re-opening the 
emulator. Fastforward is affected as well, it runs at a decreased speed. When 
this problem occurs while recording a movie, the movie will desync upon 
playback. 

The slowdown problem occurs in many parts in the Out of bounds area (you can 
use a wall glitch to access said area), and in the first room in the "really 
final chapter" so far.

http://dehacked.2y.net/microstorage.php/info/1603526911/wl2cTest.vbm
This movie places you in the Out of bounds area in Chapter 2, Story 1, room 2. 
Jump around for a while and eventually the emulation will slow down.

This problem occurs in the latest VBA-24-m revision, even though I think at one 
point it was said to have been fixed. Other games may be affected as well, I 
don't know.

Original issue reported on code.google.com by multi-ul...@web.de on 22 Aug 2011 at 3:00

[GoogleCodeExporter]

Additional info: 
The problem seems to happen if some condition is met. Once it is met, the 
emulation will slow down everytime you save a state, load it and repeat (save a 
new state, load that, etc.).
http://www.youtube.com/watch?v=sbLuPvgP8SM

Original comment by multi-ul...@web.de on 22 Aug 2011 at 3:49

[GoogleCodeExporter]

So this is a GBC emulation bug instead of any movie recording bug. It is not 
the same issue as the one that revision 371 resolved.

Original comment by aquan...@gmail.com on 23 Aug 2011 at 3:21

• Changed state: Accepted
• Added labels: Priority-High
• Removed labels: Priority-Medium

[GoogleCodeExporter]

Fixed on r391.

Original comment by aquan...@gmail.com on 23 Aug 2011 at 5:53

• Changed state: Fixed
• Added labels: Priority-Critical
• Removed labels: Priority-High