VRC6: Please run my test rom

Discuss hardware-related topics, such as development cartridges, CopyNES, PowerPak, EPROMs, or whatever.

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natt
Posts: 76
Joined: Fri Oct 26, 2012 5:27 pm

VRC6: Please run my test rom

Post by natt » Wed Feb 19, 2014 11:24 am

I find the extended features of the VRC6 a bit confusing at times, and no game ever used them. Accordingly, I've created a test rom to help implement the chip correctly. But since the test rom was created from my own understanding of the chip, it may be wrong.

If it wouldn't be too much trouble, I would appreciate it if someone could run this test rom on real hardware. both iNES 24 and 26 variants are included; running either would be sufficient.

http://www.mediafire.com/download/6hvuj ... c6test.zip

The test is fully automatic, and after approximately 8 seconds or less, will print a message on the screen.

Thank you!

SnoopKatt
Posts: 47
Joined: Tue Aug 14, 2012 8:37 pm

Re: VRC6: Please run my test rom

Post by SnoopKatt » Sat Feb 22, 2014 3:49 am

I gave this a run on my Everdrive N8, and it says "Test Failed: 00 09 80 81" on both ROMs.

natt
Posts: 76
Joined: Fri Oct 26, 2012 5:27 pm

Re: VRC6: Please run my test rom

Post by natt » Sat Feb 22, 2014 7:37 am

Thanks. Seems like the Everdrive N8 doesn't implement the extended mirroring mode stuff. Which is no surprise I guess, as it's not needed to run any VRC6 games. Still would like to see a test on actual VRC6 silicon, though.

zzo38
Posts: 1077
Joined: Mon Feb 07, 2011 12:46 pm

Re: VRC6: Please run my test rom

Post by zzo38 » Sat Feb 22, 2014 4:24 pm

I am also interested to see it tested with actual VRC6 cartridges. We can figure out more how it works, and therefore to fix emulators and so on to support these features. Although no existing games use it, it is necessary to make a complete VRC6 implementation, and may be useful in future in case someone is writing more programs that use VRC6 mapper.
[url=gopher://zzo38computer.org/].[/url]

dipsocket
Posts: 1
Joined: Thu Dec 25, 2014 11:19 pm

Re: VRC6: Please run my test rom

Post by dipsocket » Thu Dec 25, 2014 11:39 pm

I don't know if it's still useful anymore, but I came across this post shortly after I finished putting sockets on an Esper Dreams 2 cart to try out the translation, so I thought I'd give your test a try. I used vrc26test mirrored to fill 28f512s, and when I ran it in my top loader with famicom adapter, I got "All Tests Passed!" Also, the translation worked!
Oh, just in case, the chip is a
053329
VRC VI 1105-0039
9010EAY

lidnariq
Posts: 10250
Joined: Sun Apr 13, 2008 11:12 am
Location: Seattle

Re: VRC6: Please run my test rom

Post by lidnariq » Fri Dec 26, 2014 1:05 am

The original cartridge that I asked BootGod to extract the truth table from was a copy of Madara, so it's nice to have corroboration here.

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