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**Mr530** · 07-18-2005, 08:04 AM

I know its sort of rude, but didn't neo geo come before neo geo cd? I don't know personally (i never have played the console), but I have all the metal slugs ported for other systems, and I really wanted to play them on my PSP. I mean its like having an N64 emulator before a SNES emu?

**kaioshade** · 07-18-2005, 08:06 AM

Because emulating a cd is much less demanding a system that demanded hundreds of megs of ram at a time.

**Mr530** · 07-18-2005, 11:22 AM

neo geo used lots of ram? i mean i know that the roms are like 70 megs.

**Merovingian** · 07-18-2005, 11:26 AM

Quote:

Originally Posted by Mr530

neo geo used lots of ram? i mean i know that the roms are like 70 megs.

Because the CD system was an extreamly toned down version of the Acrade/AES home system.

For the purposes of emulating the CD system was an ideal candidate since the specs of the system were really low compared to what the Arcade/AES system specs are.

The Arcade/AES system will probably be attempted in time however it will be difficult to accomplish.

Give it time....and in the mean time you have a nice CD Emu to play with.

**BlazeE** · 07-18-2005, 11:41 AM

Cartridges load data all at once, therefore we'd only be able to play games that dont go over the PSP's max RAM. I don't remember how much RAM it has exactly though, I THINK 32 MB. CDs load data at the "loading screens" and its not on all at once, so less RAM is required, but more loading time is added.

raiser · 07-18-2005, 05:40 PM

From testing I believe that the PSP has about 25MB of usable memory when running the CD emulator. This is based on an observation that any zipped CD file larger than 25MB loads incredibly slowly. If they are unzipped they load faster, but I don't think the NEO-CD games load much more than 30MB chunks at a time (didn't it have 32MB system RAM?). It would be possible to port one of the many neogeo arcade emulators, but I suspect it would have problems loading any ROM over 30MB, which is most of the newer fighting titles that everyone wants to play.

There was a version of Final Burn Alpha ported to the Xbox that used Dynamic recompilation to load ROMS that were bigger than the Xbox usable system RAM. Before that version came out you would get out of memory errors trying to load the big ROMS. After it was released you could load any NeoGeo or CPS2 roms. Something similar would need to be done for the PSP, but to an even greater extent since it has half the system RAM of an Xbox (32MB vs 64MB). I am not sure if that source is still available as the writer got fed up with ROM whores and stopped development

http://www.lantus-x.com/FBAx/

07-18-2005, 08:04 AM	#1
Mr530 Join Date: Jul 2005 Posts: 53 Trader Feedback: 0	Neo Geo Emulator... why doesn't it exist? I know its sort of rude, but didn't neo geo come before neo geo cd? I don't know personally (i never have played the console), but I have all the metal slugs ported for other systems, and I really wanted to play them on my PSP. I mean its like having an N64 emulator before a SNES emu?

07-18-2005, 05:40 PM	#6
raiser Join Date: Jul 2005 Posts: 25 Trader Feedback: 0	Cart vs CD From testing I believe that the PSP has about 25MB of usable memory when running the CD emulator. This is based on an observation that any zipped CD file larger than 25MB loads incredibly slowly. If they are unzipped they load faster, but I don't think the NEO-CD games load much more than 30MB chunks at a time (didn't it have 32MB system RAM?). It would be possible to port one of the many neogeo arcade emulators, but I suspect it would have problems loading any ROM over 30MB, which is most of the newer fighting titles that everyone wants to play. There was a version of Final Burn Alpha ported to the Xbox that used Dynamic recompilation to load ROMS that were bigger than the Xbox usable system RAM. Before that version came out you would get out of memory errors trying to load the big ROMS. After it was released you could load any NeoGeo or CPS2 roms. Something similar would need to be done for the PSP, but to an even greater extent since it has half the system RAM of an Xbox (32MB vs 64MB). I am not sure if that source is still available as the writer got fed up with ROM whores and stopped development http://www.lantus-x.com/FBAx/

07-18-2005, 08:06 AM	#2
kaioshade Blade Works Join Date: Jun 2005 Posts: 1,610 Trader Feedback: 0	Because emulating a cd is much less demanding a system that demanded hundreds of megs of ram at a time.

07-18-2005, 11:22 AM	#3
Mr530 Join Date: Jul 2005 Posts: 53 Trader Feedback: 0	neo geo used lots of ram? i mean i know that the roms are like 70 megs.

07-18-2005, 11:41 AM	#5
BlazeE Join Date: Jun 2005 Location: New York Posts: 202 Trader Feedback: 0	Cartridges load data all at once, therefore we'd only be able to play games that dont go over the PSP's max RAM. I don't remember how much RAM it has exactly though, I THINK 32 MB. CDs load data at the "loading screens" and its not on all at once, so less RAM is required, but more loading time is added.

QJ.net Game Discussion - PSP, Xbox, Wii, PS3, PSP Homebrew, and PSP Guides

Neo Geo Emulator... why doesn't it exist?