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PostPosted: Wed Jan 16, 2019 12:00 pm 
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Kaiketsu Yanchamaru is in the list as "undetermined". Super Chinese 2 does query the microphone, but the code is too convoluted for hvcmic to identify.


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PostPosted: Fri Jan 25, 2019 2:16 pm 
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Two recently-released famiclone built-in ROMs (Thumbs-Up 240-in-1 Mini Arcade Machine, Polaroid Megamax GPD001SDG, available at the "usual place") use an encryption scheme that simply swaps bits 5 and 6, but only of CPU opcode bytes, and are otherwise identical to the normal VTxx console types. I tentatively denoted mapper 256 submapper 15 in the released ROM images to indicate this, given it was likely used for the same purpose as the other submappers of mapper 256. But I am not sure that is the right spot to do it, given that it has nothing to do per se with what a mapper normally does. But I am also hesitant to use any other header bits to denote something that is really idiosyncratic to a particular type of famiclone. Any ideas or opinions?


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PostPosted: Fri Jan 25, 2019 2:29 pm 
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On one hand, it is a unique CPU, and arguably should be in the Extended Console Type.

On the other hand, every VRTech console except the VT01 makes no distinction between memory mapper, CPU, and PPU anyway, so in these situations the two fields are really redundant anyway, and shoving this craziness into a submapper makes it easier for emulator authors to quarantine the crazy.


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PostPosted: Tue Feb 05, 2019 10:39 am 
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Okay! I have now added this encryption type to mapper 256's submapper table.


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PostPosted: Tue Feb 05, 2019 1:49 pm 
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I've noticed that the wiki page for NES 2.0 got an overhaul... I'm not sure if the new format is an improvement over what we had before, but regardless of opinion, I'd like to report that some of the ASCII diagrams are busted (the first 2 for sure), as the lines aren't correctly connecting some bits to their descriptions.


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PostPosted: Tue Feb 05, 2019 2:01 pm 
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The diagrams are literally just ASCII and spaces with no tabs in a monospaced font. I don't see how this could go wrong, but a picture of what you see would help us figure out if there's anything we can do to fix it.


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PostPosted: Tue Feb 05, 2019 2:10 pm 
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Here's what looks wrong to me:
Attachment:
wiki-ascii-diagrams.png
wiki-ascii-diagrams.png [ 28.51 KiB | Viewed 1206 times ]


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PostPosted: Tue Feb 05, 2019 2:13 pm 
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Oh, huh. Those are actually typos. Fixed.


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PostPosted: Wed Feb 06, 2019 5:23 am 
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tokumaru wrote:
I'm not sure if the new format is an improvement over what we had before
It's always nice to see the appreciation one gets here for one's work. Maybe I should re-add some of the better parts of the old page, such as the rant about battery-backing the "stupid CHR RAM" and which cartridges are "monstrosities"? :P

Anyway, thank-you for pointing out the typos.


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PostPosted: Wed Feb 06, 2019 6:33 am 
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Sorry if I sounded ungrateful or something, it's just that I felt slightly disoriented when I went to look something up and found a completely different page. And without comparing them side by side I couldn't really tell what has improved and what hasn't. I do appreciate the effort to make the wiki better, so sorry if I sounded mean.


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