Emulating Dreamcast??

[DuMY]

please help!!!! my demul whenever i load a game it says "unable to find mpr-21931.ic501 in romset dc" how do i fix this?

[DOS76]

I would suggest getting the latest DC.zip file from a MAME non-merged set and adding it to where ever your Demul ROMs are the file has under gone changes recently in MAME.

[DuMY]

I do not understand what MAME has to do with DEMul?

[Lordmonkus]

It has the bios that you are missing.

You don't need to get the Mame set but you will need to look around for the missing bios.

[DuMY]

  On 10/17/2017 at 9:19 PM, lordmonkus said:

Tem a BIOS que você está faltando.

Você não precisa obter o conjunto Mame, mas você precisará procurar a BIOS em falta.

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need unzip dc.zip?

Edited October 17, 2017 by DuMY

[Lordmonkus]

I can't remember if they need to be unzipped or not. I have them both zipped and unzipped in my DC bios folder.

[DuMY]

  On 10/17/2017 at 9:24 PM, lordmonkus said:

Não consigo lembrar se eles precisam ser descompactados ou não. Eu tenho ambos zipados e descompactados na minha pasta de bios de DC.

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inside the folder in Demul?

[Lordmonkus]

It can be anywhere you want but you have to tell Demul where to look for it.

[DuMY]

  On 10/17/2017 at 10:03 PM, lordmonkus said:

It can be anywhere you want but you have to tell Demul where to look for it.

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unbelievable after 5 hours searching I got to run incredible, I remember that I already had this console but could not play now I have it in my hands !! thank you friend for help the forum needs more members like you!

[Lordmonkus]

  On 10/17/2017 at 10:13 PM, DuMY said:

thank you friend for help the forum needs more members like you!

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I'm sure I can find some people that would think otherwise

Glad I can be of some help.

[DOS76]

What MAME has to do with Demul is that it uses the same exact ROMs and BIOS files depending on your version of Demul will depend on which version of MAME files it is looking for.

[lino11]

Hey Lordmonkus, 

I was having a similar issue as the original poster trying to get Atomiswave going, HOWEVER....

I think mine can be fixed with some command line help, perhaps.

First off, I have Demul running fine... I have Dreamcast games running flawlessly through Launchbox. For DC, I can click on a game from my Launchbox library page and it'll load up and play fine.

For Sammy Atomiswave, if I click on a game, it just opens up the Demul program. Nothing else.

Now, if I go the program's preferred route, and put my Atomiswave games in the emulator's root ROM directory, then everything works great. Open the app, run the game.  Easy. So I know my BIOS stuff and plugin mapping is all good.

But that's using Demul outside of Launchbox. 

And I got all my games on an external hard drive, and want to use it through Launchbox.... since it's so pretty and nice to me.

What am I missing here?

 

Things I've tried:

1. I created a 2nd Demul in LB... I called it "Demul [Arcade]" -- I hope to run all those sega ones thru here, naomi, naomi 2, gaelco, hikaru, cave... what else? For now, only regular dreamcast games work for me. 

2. I've got the standard Associated Platform stuff set up and set as default, with this command line:  -run=awave -rom=

3. I've tried a series of combinations of "don't use quotes" and "no space before ROM" and "use file name only w/o extension." With one of those combos, I get a similar error like the OP up top, "unable to find mpr-2193.ic501 in romset awave" or whatever it is...

 

 

Thanks for any help!!!

[Lordmonkus]

You will need to add the rom locations in Demul and then you will want the appropriate command line parameters for each platform.

Here is the command line for Atomiswave which is the only one I use aside from Dreamcast.

-run=awave -rom=	

 

[Lordmonkus]

  On 10/21/2017 at 2:03 AM, lino11 said:

"unable to find mpr-2193.ic501 in romset awave"

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This is a missing bios issue and you will have to source a proper one.

[lino11]

It's weird because I can get Atomiswave working fine. It works, plays perfect. 

 

Under these conditions:

1. Open Demul outside of LB

2. Copy each atomiswave game to root rom directory

 

So my bios must be correct, right?

 

However, if I try to run the game "demofist" (Demolish Fist) through LaunchBox, I get this:

[Lordmonkus]

Ok well that error tells me that your Demolish Fist rom is no good.

You don't need to copy your roms to the root rom directory, you can simply tell Demul where to look for the roms and you can add multiple paths like how I have in the screencap above.

[lino11]

Thank you!!

You know, I didn't realize that I could have more than one path for "roms and bios" .... but that's obviously what "add" means there on the gui. Doh!!

I had my bios folder separately from my games folder, so I was only pointing the program to the one folder, not both.

It's working now through Launchbox!! And Demolish Fist works!

 

(odd though, that it gives that particular error msg, even when you can clearly see that ax0601p01.ic18 file inside the zip contents)

 

Thanks for your help, sometimes just talking it out can do it. Have a nice weekend! 

[Lordmonkus]

  On 10/21/2017 at 2:51 AM, lino11 said:

(odd though, that it gives that particular error msg, even when you can clearly see that ax0601p01.ic18 file inside the zip contents

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It can be the same name but incorrect file if it's actually different in size or md5 check sum.

[DOS76]

yeah some time the content of the .zip file will change as they will get a better dump of a machine or figure out how to implement something else on the board that previously didn't work. The latest version of Demul from the 12th of this month uses the latest MAME ROMs so depending upon which version you have you may have to source the roms for that version.

[DuMY]

How to emulate res3 with rom GDI?