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Re: NES 2.0 XML Database

Posted: Mon Aug 24, 2020 11:44 pm
by NewRisingSun
That's an FCEUX-specific problem. I will not change the database entry for that.

Re: NES 2.0 XML Database

Posted: Fri Sep 04, 2020 9:06 am
by raousoft
What's the benefits of sum16 ?

Re: NES 2.0 XML Database

Posted: Mon Sep 07, 2020 10:03 am
by Great Hierophant
raousoft wrote:
Fri Sep 04, 2020 9:06 am
What's the benefits of sum16 ?
That is the method Nintendo used to verify the file integrity of ROMs at its factory and included the sum16 values in its spreadsheet inventorying the Famicom and NES ROMs going through its assembly line. This spreadsheet does not include Japanese games from third parties like Konami and Namco which often or always made their own cartridges as well as unlicensed games. The sum16 method does not appear to have been used in ROM integrity checks for games for other Nintendo consoles.

Re: NES 2.0 XML Database

Posted: Sun Sep 13, 2020 10:17 pm
by Lodan
Just a few more questions,
Duck (Asia) (En) (Unl) it's listed as Vs-UniSystem but I couldn't find it here: https://nintendo.fandom.com/wiki/Nintendo_VS._System, I'm wonder if has some special VS features.

About U-Force Power Games, those are using the pcb NES-GN-ROM, shouldn't those be listed as mapper 66?

Re: NES 2.0 XML Database

Posted: Sun Sep 13, 2020 10:43 pm
by lidnariq
Probably a shortcoming in whatever tool you're using to inspect the headers after the fact. I assume you're talking about this entry in nes20db.xml:

Code: Select all

        <game><!-- Unlicensed Taiwan&amp;Hong Kong\Duck - 醜小鴨.nes -->
                <prgrom size="32768" crc32="18663A40" sha1="6365BAA8D31149AF2D99462F17982551F968E932" sum16="3188" />
                <chrrom size="8192" crc32="33497EA7" sha1="BCFDFB43A8BC929AC2805FEA17A7BB0412B46E6B" sum16="8432" />
                <rom size="40960" crc32="0FAFC70B" sha1="686DDE8A8D6DAE037A3E34CEDB30FA5C3BB4B9DD" />
                <pcb mapper="0" submapper="0" mirroring="H" battery="0" />
                <console type="3" region="2" />
                <expansion type="1" />
        </game>
which is "Famiclone with functioning decimal mode".
NES2.0 defines setting both the "Vs. System" and "PlayChoice10" bits as meaning "look at the other table"

Re: NES 2.0 XML Database

Posted: Sun Sep 13, 2020 11:52 pm
by NewRisingSun
Lodan wrote:About U-Force Power Games, those are using the pcb NES-GN-ROM, shouldn't those be listed as mapper 66?
If other sources list it as GNROM, then suppose I should believe them and set it to mapper 66. The game only has 32 KiB of PRG-ROM however, so GNROM effectively is reduced to CNROM functionality. So it makes no difference in the end.

Re: NES 2.0 XML Database

Posted: Mon Sep 14, 2020 1:53 am
by Lodan
@lidnariq @NewRisingSun
Thank you very much!

Re: NES 2.0 XML Database

Posted: Thu Sep 17, 2020 6:01 pm
by tepples
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