Author Topic: 2d PSP  (Read 6854 times)

Pingouin

  • *
  • Posts: 260
Re: 2d PSP
« Reply #20 on: October 08, 2011, 08:57:42 pm »
F &KK Off, it's not that I can't understand why such hardware can't ever emulate sonycrup

Actually, that's exactly the problem. If you could understand, you wouldn't even have bothered asking.

In fact when SiENcE replied "nope sorry" and you further asked "Explain", I believe the reason why SiENcE didn't bother giving you any clarification is because he knew that since you asked the question, it was clear that you couldn't understand the explanation.

Likewise, if my mom asked me if the Higgs boson could be found in her pressure cooker, and I said "nope", she wouldn't bother asking me further explanations.

I think SilverhawkBR's answer is as good as it can get, so anyone jumping on this thread should just read that and move on *EDIT* I'm talking about reply #15.
« Last Edit: October 08, 2011, 09:00:00 pm by Pingouin »

bigdavebear

  • *
  • Posts: 338
Re: 2d PSP
« Reply #21 on: October 08, 2011, 09:27:20 pm »
We cant really go and compare the PSP to Dingoo a PSP is reconmended to run at 333Mhz the Dingoo A320 400Mhz

The Dingoo is underclocked to 336Mhz the PSP 233Mhz (although some games over clock it to its 333Mhz rated speed).

But i would say that CPU power alone the PSP is better even though its not as fast.

You see CPU Speed is not the be all that ends all as far as Processing power goes.

The Atari Jaguar had 2X 26.6Mhz CPUs, the PSX a 33Mhz one and Saturn 2 X 28.6Mhz

But the Jaguar was not even close in terms of Performance of either Sonys or Segas consoles.

Likewise the PS2 was 294Mhz the Xbox more than double at 733Mhz but the PS2's CPU was better type of CPU and so the Xbox was not over double the power of the PS2

So just because the Dingoo has higher clock speed does not mean its more powerfull, in fact the Nintendo DS at ony 67Mhz has a very good CPU if your looking at performance per Mhz the PSP does not have 5X the raw processing power of the DS neither does the Dingoo have 6X

bigdavebear

  • *
  • Posts: 338
Re: 2d PSP
« Reply #22 on: October 08, 2011, 09:35:20 pm »
Oh and yes the PSP has a GPU that would make Emulating games that use that near pointless on a Dingoo.

But i think the question is with 2D games, as i said the GPU may be used to scale the sprites, and back grounds and thus allow the CPU to do the Math....

But i dont think 2D games use a lot of the GPU and the PSP would be able to run those 2D games (i.e games could have been programed to not even use the GPU) the PSP has enough CPU power to run ports of games like Metal Slug series.

But we have to remember that its how the games are codded for the consoles CPU that will be the hard thing to emulate, What i mean is that for a PC to Emulate say Sega Mega Drive classics on PSP or PS3 would take a hell of a lot for even todays PC's

Yet its only a collection of SMD games, that a much much older PC with 300Mhz CPU could emulate the Roms at near Perfect.....

When these games are ported to run on console, they may look just the same as the orginal systems Rom but they require vastly more to emulate.

pcercuei

  • ***
  • Posts: 1428
    • My devblog
Re: 2d PSP
« Reply #23 on: October 08, 2011, 09:55:11 pm »
But i think the question is with 2D games, as i said the GPU may be used to scale the sprites, and back grounds and thus allow the CPU to do the Math....
On 2D games, with a GPU, the sprites / backgrounds are just textures... Those 2D games are just 3D games with one dimension missing, and nothing else is different tech-wise.

SilverhawkBR

  • *
  • Posts: 390
Re: 2d PSP
« Reply #24 on: October 09, 2011, 04:37:41 am »
CPU doesn't mean everything. On the PSP, the CPU is used mostly for Hardware controlling and game engine processing (events, triggers, AIs). And audio goes by the SPU (i think PSP has one, correct me if it's wrong).

So, unlike the dingoo, the CPU of the PSP handles MANY LESS things than the dingoo one.

And the GPU takes care of the rest.

(Also, the PS2 CPU (EmotionEngine) comes with another internal unit designed to do graphics (basically handles Post FX and vectors, if i'm not wrong) besides the CPU. The XBOX did this separately.)

I might be wrong about a few things i said here, feel free to correct me in case.
« Last Edit: October 09, 2011, 04:41:14 am by SilverhawkBR »

 

Post a new topic