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MathewWi / genplus-gx

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Few Game Gear ROMS not working #214

Closed GoogleCodeExporter closed 9 years ago

GoogleCodeExporter commented 9 years ago 
Not sure if these are bad dumps, but so far I found 3 roms not working....Joe 
Montana's Football crashes right away, Galaga '91 crashes after Namco screen, 
and Arena the Maze of Death crashes just before you start the game. Again, not 
sure if these are bad dumps. If possible, can you verify this. thanks again...

Original issue reported on code.google.com by csatec...@gmail.com on 12 Apr 2012 at 9:54

GoogleCodeExporter commented 9 years ago 
I can confirm those crashes, must be due to some bugs in mapper implementation, 
though i remember having quickly tested game gear fullset once and did not 
noticed any issue. 

Generally speaking, when reporting issues, there is a pre-filled form which ask 
you to give the version you are using, please don't ignore it...

Original comment by ekeeke31@gmail.com on 12 Apr 2012 at 11:34

GoogleCodeExporter commented 9 years ago 
Fixed in r679.
It was indeed a bug introduced in a previous revision when changing the mapper 
initialization code, I forgot to initialize ROM area write pointers. No games 
should actually write to ROM but a few still do it accidentally, which resulted 
in crash.

Original comment by ekeeke31@gmail.com on 12 Apr 2012 at 10:11