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AllenK »
2019-05-04 09:55:22
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There are a number of problems with the current rom listed in no-inro, yet Jurassic Boy 2 (E) [C][!].gbc (crc32=44827E74) does work perfectly so I figured this would be something worth looking into.
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Tauwasser »
2019-05-05 06:43:38
Hi AllenK,
thanks for your message.
The ROM you mention (crc32=44827E74) is a known bad dump:
a) it's an overdump b) it doesn't dump the ROM correctly/completely due Sachen's custom memory mapping chip.
The ROM currently listed by No-Intro (https://datomatic.no-intro.org/?page=show_record&s=47&n=1409) works fine in MAME where the mapper is correctly implemented.
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Tauwasser »
2019-05-05 06:51:05
Addendum:
Should have mentioned:
The bad dump you're referring to is listed on
https://datomatic.no-intro.org/index.php?page=show_record&s=47&n=0531
not on
https://datomatic.no-intro.org/?page=show_record&s=47&n=1409
Actually, there is at least one more variant of Jurassic Boy that is not in DoM yet. I was going to analyze the ROMs and check for differences first.
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omonim2007 »
2023-10-10 03:49:28
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Both entries are already datted.
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Back to: Nintendo - Game Boy Color
"Jurassic Boy 2" appears to be broken