[SegaLoco]

In the hopes of finding new bios versions, I am posting similar topics to this around the web, in such places as ASSEMblergames, X-Cult, and Sega16 to garner support for my SegaCD bios database project, which will help the research scene a lot. My proposition is this, if you have a Sega CD of any kind, official or not, heck, all it has to do is be a console that plays Sega CD games, and its fine. Read this guide to learn how to dump the bios. If you need help understanding the guide, get on the irc, I am sure a Tech Member will be willing to help you.

[Flygon]

As much as I'd like to help, my Sega CD is currently wrapped in a plastic bag (Shipping pending) and I lack any form of parallel port access.

However, I wish you luck in this process.

[TmEE]

I've dumped the BIOS of my MCD2s and they're already available on the net.... I don't recall if Wondermega and Xeye dumps I did are.....

[SegaLoco]

You have done X'eye and Wondermega!?!, dude, if you have those files laying around, I NEEEED them for database.

[SpinelSun]

I've dumped the BIOS of my MCD2s and they're already available on the net.... I don't recall if Wondermega and Xeye dumps I did are.....

Yeah really! Wondermega/X'eye please. There are no public Wondermega dumps available. Do you still have those MCD2s? Id like to have the SEGA MPR/EPR/OPR ROM part numbers for each and every BIOS. If you could dump the bios and post its ROM part number/take a pic of the mainboard showing the ROM part # either or both would be appreaciated.

See here for whats available/known. http://www.x-cult.org/newegg/wiki/cat/41/S...37/BIOS%20Files

btw, the CRC32 of the X'eye dump I did is 290f8e33. And is the only one we know of on the net. if yours is different, please do share.

This post has been edited by SpinelSun: 25 June 2009 - 08:38 PM

[Sik]

You have done X'eye and Wondermega!?!, dude, if you have those files laying around, I NEEEED them for database.

And you didn't believe me when I told you on IRC that they were dumped already =P Although yeah, was sorta unsure, so thanks for the confirmation, Tiido =b

[RamiroR]

You have done X'eye and Wondermega!?!, dude, if you have those files laying around, I NEEEED them for database.

Oh, in that case, I want them too

By the way, I don't get what this is about.
Hm.. I have everything for making that cable.. two old shitty controllers I don't use..But I dunno if I have parallel port connector =/

Oh well, it's just the original MCD II anyway

[SegaLoco]

Well, anyways, TmEE, definitely get those to me, okay?

[Skaarg]

I will have an x'eye in a couple weeks, providing it does get transferred to our store. If I have the time I'll dump the bios to see if it's any different.

This post has been edited by Skaarg: 25 June 2009 - 10:27 PM

[TmEE]

when I get home and manage to get online, I'll try to put those BIOS files up somewhere, as well as the numbers on the actual chips.

[Toekutr]

I've got 2 X'eyes, but no serial port.

[GerbilSoft]

I tested the X'Eye firmware in Gens/GS. It seems to have some issues booting the CD, but it does eventually boot after a while. A strange thing is that the X'Eye firmware completely ignores the MD's region code. Other firmwares will check the MD region code and lock out the system if it doesn't match the MCD's region code, whereas X'Eye will run on any region; however, it will only run games encoded as US region.

I have a US Sega CD 1; however, I already dumped its firmware and it matched the well-known 1.10 dump, so there's no point in me posting it here.

[SegaLoco]

All thanks go to TmEE. Thank you so very much. Grab it here.

[SpinelSun]

puddin you idiot. the cult wiki is no place for "dumped by TmEE" bragging rights :P

Also, TmEE's x'eye and wondermega dumps seem to be bad, 3 bad bytes. In his X'eye the first byte is F4, in my dump and every other BIOS dump it's FF. Also at 0x72 his dumps have
FFFF when mine has FD0C. His wondermega BIOS is the same way as well. 0x72 is treated as RAM by the sega cd so reading out that location from RAM wont return whats actually in ROM. So, TmEE, what method did you use to dump them?

My X'eye dump was 100% good. You'll restore it if you know whats good for you I also did not alter it in any way. (in other words I didn't dump it bad then change the bytes, my dump was good straight away.)
Also, again, that part number column on the cult wiki is for the ROM MPR/OPR part number! NOT the system model number. and the X'eye has no dedicated ROM thats why I had N/A there...

TmEE any chance you can get the MPR ROM part numbers from the MCD2s you said you have?

[SpinelSun]

I tested the X'Eye firmware in Gens/GS. It seems to have some issues booting the CD, but it does eventually boot after a while. A strange thing is that the X'Eye firmware completely ignores the MD's region code. Other firmwares will check the MD region code and lock out the system if it doesn't match the MCD's region code, whereas X'Eye will run on any region; however, it will only run games encoded as US region.

The Reason why the X'eye doesn't work correctly in emulators is because it uses a different CDC. The X'eye uses a LC89513K while the normal Sega CD uses a LC89515. Presumably the wondermega also uses a LC89513K. Tiido? care to confirm?

I have a US Sega CD 1; however, I already dumped its firmware and it matched the well-known 1.10 dump, so there's no point in me posting it here.

Open it up and post the BIOS ROM MPR part number or take a pic of the BIOS/mainboard showing it.

This post has been edited by SpinelSun: 26 June 2009 - 06:08 PM