Why doesn't Outrun Work?


Muzzaro

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i like what I hear about this so far.

Just a question.

someone said PCE was near perfect but wouldn't run games that had 3d, like outrun. But, it isn't actually 3d, it's a simulated 3d, right? Not like it needs a GFX chip like starfox and such needed, and with the yeti engine around, how come things like outrun can't work? (Just curious because I adore Chase HQ, and I'm wondering if this could be emulated or not...)
 

generalnmx

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I took this out of the GP32 Non-FLU vs FLU because I didn't think it was very on-topic. I'll try answering the topic here.

First, I'll give the short answer: No emulator is perfect. Outrun does something the emulator hasn't been coded to handle properly, yet.

Now, for the long answer:

I'm not a PCEngine hardware specialist, but from my experience, but the main reason proprietary systems are not emulated perfectly is because we had to (hopefulyl legally) reverse engineer their systems to figure out how they work. Outrun could be one of those games which does something unexpected, in a way the programmers cannot easily fix.

You'll see this many times in emulators, something like "if (AERO_ACROBAT) TILE_COUNT++; //hack for Aero AcroBat 1", where the real underlying truth is that they don't know exactly why that hack is necessary - obviously the SNES cannot preform such a feat, because Aero Acrobat was released after the SNES, and (supposedly) all the game data from Aero Acrobat is contained within the ROM emulated.

We especially have the problem with the PCEngine, because it's not as popular as SNES and the like, so there is less accurate source code available. GPEngine did it best with the programmers and existing source code which could be found.

In truth, we could have the Playstation One emulated on the GP32, but it would involve massive amounts of compression, decompression, possibly the 32MB upgrade to the GP32, and a team of dedicated programmers possibly working from the ground up in ASM. Also, in truth, I could gain magical powers to fight evil alien forces from the Orion Belt. When there is insufficient information to present a logical conclusion, the possibility still remains. I'm merely denoting this possibility exists, however unlikely, hoping to draw a parallel in your mind.

By now, you may be wondering 1) why I wrote so much, and 2) why you read so much (unless you skipped down here). I think it has become apparent to some people on this board that I am not one for brevity, in some cases. Additionally, I meant no personal offense to the original poster, Muzzaro, by making this so long-winded. I mearly wanted to clarify a situation which I have found other people confused on as well. Only read the first sentence in the explanation if you don't want to interalize the extra information.
 

trooper

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Seriously, Outrun works perfectly on either of the 2 Sega master system emulators for the GP32. Well, Outrun 3D actually, But just select the 2d option in the game, Ive not tried the original outrun.

Trooper
 

Swiss_Cheeseman

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Strange, outrun works fine on gpengine for me, a little slow perhaps, but I just set it to frameskip 20
 

Tobriand

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Same... Outrun in GPEngine for me works perfectly. Its not, imho, a very good version of the game (on account of how the road is seriously jagged around the edges and similar) - I'd choose the SMS version anytime. Or even the GBC version of Top Gear 2 (which is a good one) or the GG game "Sonic Drift" (Mario Kart with sonic characters in a very nice mode 7 track. Or the prequel to Sonic R. However you think of it. The game is very very fun, anyhow). But the SMS ver of outrun is better than the PCE one.

But the PCE one definitely runs.

It might *not* run on the original PCEemu from... actually, I can't remember who did the first PCE emu for GP, but that one was fairly incomplete (lacking saves, sound, and around 40% compatibility), but it certainly works on GPEngine.
 
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