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Main => Main Forum => Topic started by: kiddk1 on June 26, 2006, 04:34:20 pm

Title: blitz roms are jittery
Post by: kiddk1 on June 26, 2006, 04:34:20 pm
tried playing nfl blitz 99 and 2000 and both are jittery in sound, like a broken record player and movements are slow, is this a corrupt rom?  i am running a amd 2ghz with 512 ram and have about 80 gigs or free HD space, nvidia 256md graphics care.
Title: Re: blitz roms are jittery
Post by: divemaster127 on June 26, 2006, 04:41:33 pm
A computer does not exist yet for the home user to runs these roms
Title: Re: blitz roms are jittery
Post by: Turnarcades on June 26, 2006, 04:47:42 pm
I think you'll find that the hard drive games are still far from perfect, even in the latest releases of MAME.

Due to the higher level of technology in those machines, I don't think emulation will ever do the trick as most 3D games feature dedicated graphics and sound engines which are still not sussed out. It's just like Killer Instinct - Still nowhere near at the level I enjoy, so I prefer to play it using the U64 emulator which does it so much better, but still has a few bugs.

I know there is no other emulator for these games, but I think it's still relatively early days and until MAME includes coding borrowed from outside projects I don't think the progress will be as rapid as it was for the oldies that were cracked in their dozens.

Plus, here's a thought - run everything through DOS or Windows 98 at the very least. XP is just crap.
Title: Re: blitz roms are jittery
Post by: SirPeale on June 26, 2006, 07:50:18 pm
I think you'll find that the hard drive games are still far from perfect, even in the latest releases of MAME.

Doesn't have anything to do with using a hard drive.  It's the level of technology.

Emulation takes a LOT of pony power.  There was an analogy I saw once that went something like "if the original CPU ran @ 1MHz, you'll need at least 25 times that to achieve decent frame rate" or something like that.

So for your Blitz board running @ 200MHz, you'll need a 5,000 MHz computer to run JUST the CPU.  Graphics processing is extra, since that was a different CPU on the board.
Title: Re: blitz roms are jittery
Post by: kiddk1 on June 26, 2006, 09:36:51 pm
so i guess i should plan on not playing blitz :'(
Title: Re: blitz roms are jittery
Post by: SirPeale on June 26, 2006, 10:08:54 pm
so i guess i should plan on not playing blitz :'(

Either get the PC version or buy a Dreamcast and get the Dreamcast version.
Title: Re: blitz roms are jittery
Post by: Havok on June 27, 2006, 09:20:42 am
I think you'll find that the hard drive games are still far from perfect, even in the latest releases of MAME.

Doesn't have anything to do with using a hard drive.  It's the level of technology.

Emulation takes a LOT of pony power.  There was an analogy I saw once that went something like "if the original CPU ran @ 1MHz, you'll need at least 25 times that to achieve decent frame rate" or something like that.

So for your Blitz board running @ 200MHz, you'll need a 5,000 MHz computer to run JUST the CPU.  Graphics processing is extra, since that was a different CPU on the board.

Raw CPU cycles do not necessarily compare properly. What about dual core? Hyperthreading? Mame does not take advantage of many of the contemporary improvements in processing power. Hopefully with the latest release (once it's stable) this will change.

The graphics on modern video cards are already much more powerful than the older video on NFL Blitz and such. Hopefully the Mame team standardizes on a couple of newer cards and supports them. Especially with the unified driver theme that Nvidia and ATI seem to be adhering to now. The power is already here, it's just if the Mame team decides to take advantage of it. Unfortunately, they are not really concerned about playability or computer optimization, just exact emulation.

We've just got to sit back and wait, and enjoy what we've got.

Unless you want to start programming? (A Zinc alternative, but for non-Sony hardware)?
Title: Re: blitz roms are jittery
Post by: Q*Bert_OP on June 27, 2006, 01:09:54 pm
so i guess i should plan on not playing blitz :'(

Either get the PC version or buy a Dreamcast and get the Dreamcast version.

Or buy the PCB and disk...