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Messages - MP2E

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News / Re: EDN8 OS v20-BETA. Large update incoming
« on: September 04, 2018, 03:32 AM »
Mega Man 3 looks correct to me in RC6 also, matches my real US cart

Shop and Shipping / Re: Black Friday 2017 Orders
« on: January 04, 2018, 09:30 PM »
EDIT: now resolved, received shipment confirmation

I ordered through retrogate on Black Friday but still haven't even received a shipment confirmation. I emailed their support almost 2 weeks ago but they just told me that I'd get shipment confirmation soon. Is my order lost? Order number is 00e104473.

EverDrive N8 / Re: Legend of Zelda (never mind...)
« on: March 10, 2017, 01:18 AM »
I've done this in Holy Diver before and was pretty confused, I keep the save state feature off now :P

EverDrive N8 / Re: Expansion Sound Fix?
« on: February 20, 2017, 11:00 AM »
This is something I'd like to see as well :)

For VRC6, have you tried this individual mapper? I find it makes it sound much better! Might take a few tries to find the right volume setting, and it still sounds a little bit different, but I think it's pretty good.

EverDrive N8 / Re: Anyone here uses an HiDef NES and has these?
« on: February 20, 2017, 07:27 AM »
Random corrupted lines in level 1-2 and any underground area basically. Despeckle works for most games but with a few you can't avoid all the minor problems, they need to be ROM hacked to fix them.

99% of the time, just switching the despeckle option should be good enough.

EverDrive N8 / Re: Anyone here uses an HiDef NES and has these?
« on: February 19, 2017, 08:07 AM »
Nice, never noticed it, I guess the low res helped.

A comparable line appear in Zelda 2 sometime when I jump or attack. Never noticed such a thing either.

It's so random I can't really show.

That one is quite a bit more tricky: So when the NES or Famicom starts up from power off, the CPU and PPU both start at different times, and there are 4 different possible CPU-PPU alignments on boot up. In a few games including Zelda 2, there's a hardware bug that causes a corrupted scanline to appear at random during gameplay, but only for 2 out of the 4 alignments. So with an unmodified NES you could just press reset until the lines don't appear anymore.

The alignment is completely random on an unmodified NES, But you can actually control which CPU-PPU alignment with the hi-def nes by setting a different 'Despeckle' setting in your menu!

Unfortunately the hi-def NES also makes things slightly more complicated. The clock speeds have to be slightly altered to meet HDMI spec, and the PPU is running in a special digital out mode that was designed for Nintendo Vs Systems and ordinarily inaccessable. This mode works well in general, but on some CPU-PPU alignments, "pixel speckling" occurs on the screen. Usually on 2/4 or 3/4 alignments.

It just so happens that Super Mario Bros, Zelda 2, and many others all have the unfortunate luck of corrupted scanlines on half of the alignments, and pixel speckling on the other half. So you can't really get a 100% perfect picture..

This might not be solvable by the hi-def NES because these bugs are coming from the NES PPU itself. So what to do about these games that force you to choose between speckling and corrupted scanlines?

Technically, they can be ROM hacked into behaving. With all of these games, they end up writing to the PPU_CTRL register to disable more NMIs at the beginning of the NMI routine, to prevent it getting stuck infinitely, then reenable it at the end of the routine. If the game is modified to check a value in RAM instead to see if we already entered NMI, and return if so, instead of actually disabling NMI, the game no longer has corrupted scanlines!

Sorry if that was too technical. The good news is, I've made a patch a while back that fixes Super Mario Bros, so you can see exactly what I mean side by side with the original game

I have worked on the other games on and off, but my 6502 skills aren't the sharpest :) Not sure when I'll have another game fixed up. Was working on Zelda 2 but I hit a wall trying to fit the new routine into the old routine

EverDrive N8 / Re: Anyone here uses an HiDef NES and has these?
« on: February 18, 2017, 01:41 PM »
Yep that's completely normal. Happens on an unmodified frontloader NES with the Mega Man 3 cartridge

EverDrive N8 / Re: Individual N8 Mapper Updates (unofficial)...
« on: February 18, 2017, 05:59 AM »
As far as I know there is not enough FPGA space for VRC7 sound on the Everdrive (unfortunately, I'd love it too)

EverDrive N8 / Re: Alternative for playing NSF files on Everdrive
« on: December 08, 2016, 06:05 AM »
Thanks!! Have always wanted to be able to play NSFs off the Everdrive :)

EverDrive N8 / Re: Compatibility with RetroUSB's AVS??
« on: October 04, 2016, 07:30 AM »
Would be nice! Castlevania III is a fun game, savestates would be useful for speedruns :)

EverDrive N8 / Re: Not supported Mapper.
« on: October 04, 2016, 07:14 AM »
Hello, might be best to check what firmware version your AVS is, if it's below 1.1.0 first try updating to that firmware!

Instructions and download links are here:

If AVS v1.1.0 is not working with Castlevania III on the Everdrive N8, try updating to AVS v1.2.0 beta 6, which can be found here:

Note that this is a beta firmware and there could be other bugs, but I have tested Castlevania III on the everdrive on beta 6 and it works on my end. Report any bugs you find by emailing support[ at ]retrousb[ dot ]com !

EverDrive N8 / Re: Compatibility with RetroUSB's AVS??
« on: October 01, 2016, 09:20 AM »
I just received my AVS console and trying to play Castlevania 3. I can't seem to save on the everdrive n8?  Other games seem fine, but not that one?

I updated the AVS firmware too and it's still the same?  Is this a known issue?

According to krikzz's compatibility listing on the Everdrive n8 product page, MMC5 and VRC6 do not have save state support, which are the boards used in Castlevania III, depending which region you were playing

Maybe it's possible that these could be added in a future Everdrive update, but the mappers are more complex so maybe not..

EverDrive N8 / Re: Compatibility with RetroUSB's AVS??
« on: September 28, 2016, 05:56 PM »
Latest betas get posted here

The changelog is as follows

Unfortunately it's a little bit vague and only mentions overall changes from v1.10, so no regression fixes from beta to beta are listed

EverDrive N8 / Re: Gimmick / Sunsoft 5B Audio?
« on: September 25, 2016, 01:12 AM »
The latest N8 OS version should have support for the 5B mapper. But if you really need the Necronom5 version then I can send it to you tonight, as right now I'm at work. PM me and I will send you the link.

The latest N8 OS version of the 5B mapper doesn't have expansion sound. I tried the latest official mapper and some sounds didn't play, unlike with the custom mapper. I attempted to upload the file here, but it said the space was full, despite the file being small enough.
Yeah the attachments limit has been reached, you can still upload it to a free file host like mediafire and leave the link here. There are plenty of other hosts too, just a random suggestion.

EverDrive N8 / Re: rom problems
« on: September 16, 2016, 11:41 PM »
I had to split my S folder of roms into 2 parts because of how many NES roms start with S, otherwise they wouldn't all show up

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