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Messages - Jiro

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16
Off Topic / Request for GBA Everdrive
« on: December 24, 2014, 02:29 AM »
Flash carts have certain problems which are most famous in Pokemon games, though they can happen for others:

-- Certain DS games will detect the presence of a particular GBA game in the GBA slot and do special things.  In order to do this on a flash cart right now, you need a flash cart which only flashes one game without a menu.  The reason for this is pretty obvious; the DS game has to be able to recognize the GBA game without running it, and it's not going to recognize a game that's only present after it's loaded from a menu.

-- DS games can access the save files on GBA games, which is used to transfer Pokemon.  Unfortunately, flash carts normally save the game differently from the original game, and patch the GBA game to save using the new method.  Because the DS game has not also been patched, the DS game is still looking for the original save file, and can't find it. 

-- Transferring Pokemon between a GBA game and Pokemon Colosseum or XD actually downloads a small program from Colosseum or XD into the GBA, and this small program accesses the save file.  Again, since the flash cart saves the game in an unusual way and patches the GBA game, but Colosseum or XD has not been patched, the transfer doesn't work (and can erase your save file).

Would it be possible for the GBA Everdrive to make these things all work?  I would guess that you can fix 2 and 3 by making sure the flash cart actually contains the right kind of flash memory for the game to be able to save without any patching.  I would assume there is some way to fix 1 but I'd have no idea how. 

17
Off Topic / Re: If you buy a new EZ-Flash IV
« on: December 05, 2014, 05:33 AM »
Watch out when playing Pokemon ROMs on this and transferring Pokemon.

The problem is that flash carts don't save exactly like regular carts.  The flash cart takes care of this by patching the game.  However, when you transfer Pokemon to a DS game, the DS game hasn't been patched and doesn't know that the save file is different, so it tries to treat it like a regular cart and doesn't work.  Likewise, you can't transfer Pokemon to Colosseum or XD with it.  I believe transferring Pokemon to a real Pokemon GBA cart will work, however.

18
Off Topic / Re: the next everdrive?
« on: November 11, 2014, 04:40 AM »
A full torrent of Sega CD (USA only) is 64.44 GB, but unfortunately that 1) is compressed, and 2) is in actual GB, not the 1000*1024 that are used for measuring SD cards, so it wouldn't fit.  It would fit on a 128G card though.  Wikipedia lists 210 games for all regions, which if you assume 500 MB each uncompressed on the average would be 105 GB and would fit on a 128G card. 

If you count 32X CD separately, of course, it would fit.

The magic of google gives me 125 games (but lots more non-games) for CD-I.  Depending on how close to max CD size they are, it's *possible* they could all fit on a 64G card, but who really knows.

Jaguar CD has 11 games plus 9 prototypes which should fit.  The Nuon had 8 games and 3 samplers, which may or may not fit depending on how big they are (Nuon was a DVD system).  The PC-FX had 62 games.  This should also fit.

19
EverDrive GB / Re: Will Pokemon be compatible with this ?
« on: April 14, 2014, 11:24 PM »
There's been a Crystal ROM around for some time called "Pokemon Crystal (U) [C][h1] (enable setting of time)" (and long before that thread).

20
EverDrive GB / Re: GB/GBC Everdrive!
« on: April 14, 2014, 10:03 PM »
I got mine--I must have ordered at exactly the right time since it wasn't even out of stock when I ordered.

It does implement GB color palettes--you pick the ROM from the menu, it loads the ROM, and it resets.  This also means that the menu can run in GBC mode while the game starts up in GB mode if necessary.

If you press start at any point it runs the previously loaded ROM without flashing again.  This is not obvious.  There are also separate options to load and run, or to just load.  I don't know if that helps it run with a Transfer Pak.

A and B buttons seem to be reversed. 

It only writes the save to SD card when you switch ROMs, which you want to watch out for if you ever feel like copying the save from the SD to your PC.

21
EverDrive GB / Re: GB/GBC Everdrive!
« on: April 05, 2014, 07:04 AM »
What almost certainly DOESN'T work are the preset GBC palettes for monochrome games, since those are chosen by the GBC bios peeking at the game's code, but all it will be able to see is the Everdrive code.

I specifically asked for that and Krikkz said he'd do it.

http://krikzz.com/forum/index.php?topic=1090.msg11170#msg11170


22
EverDrive GB / Re: GB/GBC Everdrive!
« on: March 26, 2014, 09:16 PM »
I doing final testing right now, should i check some specific games which may not work properly with flashcarts?

People have been mentioning certain games along with Mottzilla's fixes.

The original thread which also gives some technical information about why those games might not work is at http://forums.nesdev.com/viewtopic.php?f=20&t=5804

Edit: I noticed I already posted this a month ago, ah well.

23
EverDrive GB / Re: GB/GBC Everdrive!
« on: February 13, 2014, 10:32 AM »
Most of the fixes are because of that, yes, but there are some others.  One is because certain addresses are memory-mapped registers and at least one case of that seems to be intentional copy protection (according to the thread, anyway--ny technical knowledge about this is very limited).

24
EverDrive GB / Re: GB/GBC Everdrive!
« on: February 12, 2014, 05:48 AM »
Will using the GB Everdrive require the ROM fixes needed for the EMS cart right now?  (see http://forums.nesdev.com/viewtopic.php?f=20&t=5804 )

25
EverDrive GB / Re: GB/GBC Everdrive!
« on: February 10, 2014, 07:21 AM »
I don't remember the technical term for it, but the shades of color on a GB or GBC game played on a GBA are not the same as on a real GB/GBC.  For instance, in a GB with 4 shades of gray, white/gray 1/gray 2/black, the gray 1 is a lot darker than it would be on a real GB/GBC.

I find that the backlight on an AGS-101 is so much better that I would rather use one anyway, but the difference in the colors is a a real disadvantage.

26
EverDrive GB / Re: GB/GBC Everdrive!
« on: December 19, 2013, 01:00 AM »
There's already a hacked Pokemon Crystal ROM named "Pokemon Crystal (U) [C][h1] (enable setting of time)".  It existed long before this new Gold hack.

27
Turbo EverDrive / Re: Region clarification...
« on: November 24, 2013, 05:40 AM »
There are two issues:
1) The actual carts have the pinout reversed between Japanese and American versions.  This should not be a problem on an Everdrive because you're using ROMs and the bits are all in the same order in the ROMs.  (This is what that switch is for solving.)
2) There is also real region protection but all known cases of this only cause problems on Japanese consoles, not on American ones.  People who have Japanese consoles can get a hardware fix for this.  (I don't have either a TED or a Japanese console so I'm not sure how the Everdrive handles this.)

28
EverDrive GB / Re: GB/GBC Everdrive!
« on: November 22, 2013, 09:37 PM »
For GBA, EZ Flash IV has several problems (aside from the absence of such things as real time clocks)
-- Battery is not replaceable without a lot of effort
-- Uses a mini-SD.  Nobody uses mini SDs nowadays
-- SD only, no SDHC
-- Requires that ROMs be patched, but you run the patching program on Windows--the cart won't patch them itself
-- And, of course, it's out of print (although recently).  You can't get them any more except at places that have remaining stock.

29
FWIW, in the first Assembler Games link at least 1 guy says they're both working on his Mega ED (he did say Beggar Prince you have to get a rom from the 3rd run)...

I think he meant that the patched version works (and the patched version is also based on the third run).

30
Does anybody have a list of games that need patching to work/save correctly on the mega everdrive?

Here's a thread which describes how to patch some games: http://krikzz.com/forum/index.php?PHPSESSID=3592c8jbld54ebup9qjt49mrf5&topic=339.0

http://www.assemblergames.com/forums/showthread.php?47185-Super-Fighter-Team-Roms-finally-CRACKED-Beggar-Prince-MD links to patches for Super Fighter games.

http://www.assemblergames.com/forums/showthread.php?31103-MD-Everdrive-Official-quot-game-doesn-t-work-quot-Thread is the general Assembler Games thread for games that don't work on Everdrive,   Some of them have Game Genie codes and for some of them there are existing hacked GOODGEN ROMs that were patched for older copiers but also fix the problem on the Everdrive.

I don't know where the idea that there are only 6 nonworking games comes from.

Also, http://krikzz.com/forum/index.php?topic=148.0 describes a problem with X-Men (it requires using the reset button which the Everdrive traps), but no patch is mentioned.



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