MAME NeoGeo Problem

[PMJPlay]

I am trying to run 2020 Baseball in MAMEPlus 0.148 but the latest neogeo.zip on the site is missing a few files to make it complete. Did I miss a update to the neogeo.zip? If so I don't know where to find it since I searched 0.145 to 0.148.....

[Hierophant]

Hey yeah, I noticed that, too. I was testing something the other day in 0.148 and saw that MAME was looking for a new bios file in neogeo audit; uni-bios_3_0.rom. I eventually located it somewhere, not here, but blowed if I can remember where. Anyway, I have the file if you would like me to pass it on to you somehow.

[PMJPlay]

Here is my Audit Output:

2020bb : uni-bios_3_0.rom (131072 bytes) - NOT FOUND (neogeo)
2020bb : neodebug.rom (131072 bytes) - NOT FOUND (neogeo)
2020bb : neo-epo.sp1 (131072 bytes) - NOT FOUND (neogeo)
2020bb : neo-po.sp1 (131072 bytes) - NOT FOUND (neogeo)
romset 2020bb [neogeo] is bad

[Hierophant]

The neogeo.zip I've got passes audit in MAMEUI64 0.148, though I haven't tried it in MAMEPlus! 0.148 yet. I've noticed in the past that MAMEPlus! can sometimes be extra finicky with what it expects to find in neogeo.zip. Nevertheless, I'll send you what I have and keep my fingers crossed.

EDIT: It worked.

[Hot Trout]

Thanks Hierophant for the heads up and also for dropboxing me the working version of neogeo.zip. I have added it to our neogeo section and renamed it to neogeo-fixed.zip. The link to the section is below

http://www.theoldcomputer.com/roms/inde ... NK/Neo-Geo

The link to the actual fixed version is below

http://www.theoldcomputer.com/roms/getf ... l4ZWQuemlw

Thank you and enjoy.

[PMJPlay]

I found the uni-bios_3_0.rom in the rom section which is located in a update to 2020 Baseball.
Can you tell me why there is ugly gray bar on the right side of the screen when you play 2020 Baseball?

I also notice I get input lag on some games which makes them hard to play....

[Hierophant]

@ Hot Trout: No worries mate.

@ MAME newbies: Remember to rename neogeo-fixed.zip back to neogeo.zip or MAME can't see it.

@ PMJP: So the uni-bios_3_0.rom was here all along? Can you point directly to it? I was looking for it here the day I joined. I didn't spot it here but was doing multiple Google searches at the time and found it somewhere else anyway.

Your questions are a whole other can of worms!

I'm not sure why there is a grey bar on the right in 2020 Super Baseball in newer MAME. My guess is that MAMEDev have changed something in the emulation code because it's not the same as in an older version of MAME that I checked. Maybe they have to break things sometimes before they can fix them. If it bothers you then try it in the older MAME I used, MAME32 Plus! Plus! 0.119 from the Kaillera site.

The potential causes of the dreaded input lag are numerous and variable. It could be anything from shoddy USB keyboard/controller/adapter, to LCD screen delay, to MAME version differences, to game differences, or combinations thereof. By game differences I mean that some games may have naturally had more input lag than others in their original machine state and MAME is just reflecting that accurately. You'd need to try some tests to isolate possible hardware problems at your end. You can do that with MAME's frame advance option (shift + P).

During gameplay, pause with P. While paused, hold down an input like direction, shot, punch, or whatever on your controller, keep the input held just for the first paused frame and hold shift and press P to advance one frame at a time. Count how many frames it takes for the input to get a response in the game. Now do the same again on the keyboard. All being well, you should get the same frame count between the controller and the keyboard. If there is a discrepancy then that would indicate a hardware problem. The same test can also be used to check to see if a game has variations in response between different MAME versions.

Also of interest: There is a patched version of MAME called Shmupmame where the author has endeavoured to modify the code of various drivers to make their associated games lag free, along with other general improvements to MAME as a whole.

[PMJPlay]

Input lag was caused by my MAME framerate set to 0 so it working now.

uni-bios_3_0.rom is located in the 2020bb.zip here...
http://www.theoldcomputer.com/roms/inde ... 47/0.147u4

I think I am going to give MAME a rest for now since it starting to do my head in

[Hierophant]

Thanks. I never would've thought to look for a missing neogeo.zip bios file inside an update rom for 2020bb.zip. That's way too obscure!


In case you decide to persevere again later, the default frame skip setting in MAME is 0/10, or in other words, no frame skipping at all, which is the best way to have it. Each time you up that by one (1/10... 2/10... etc) you skip 10% of total frames. 10/10 frame skipping is equivalent to running unthrottled. If you feel you have to increase frame skipping to get the game speed right, then that indicates a performance issue. Press F11 in-game to view the performance counter. Going by the specs in your profile, you should be able to play most MAME games at full performance without any frame skipping. However, there are some 3D games in MAME, and even some 2D games in rare cases, that will still make current PCs struggle to keep up.

I tend to avoid games that don't run at a constant 100% full performance in MAME. The further it drops below 100%, the more broken it makes the game feel. That's no fun. While frame skipping may alleviate some performance drops, that's a sacrifice I'm not willing to make. I'd rather just play a different game.

[Avon_Youtube]

Hello guys, I arrived here after googling for the uni-bios_3_0.rom file for a while, but without any luck. This forum is the only place where I could find someone with a solution for it, but the link provided by Hot Trout doesn't seem to work for me (I registered but still don't get to see the download link). Someone could help me please? I'm starting to think that upgrading to Mame 0.148 was a bad idea...