maemo.org - Talk
Page 5 of 7 « First 34 5 67
Show 40 post(s) from this thread on one page

maemo.org - Talk (https://talk.maemo.org/index.php)
-   Development (https://talk.maemo.org/forumdisplay.php?f=13)
-   -   Full Speed SNES Emulator (https://talk.maemo.org/showthread.php?t=6954)

zerojay 2008-07-16 01:14
Re: Full Speed SNES Emulator
 
Quote:
Originally Posted by ArnimS (Post 186091)
Hey sorry for leaving you guys hanging so long. Real Life (tm) has intruded here in pupnikland :(

There is some good news: i did get DrPocketSnes stripped down to the point where it runs and loads a ROM on the tablet (this was in January).

Can't wait to prove zerojay wrong :P Well - strictly speaking I expect he's right - we can't get 60fps in real screen updates until we figure out how to manually control vsync and possibly bypass SDL - and the fast (tile based) emulation from Squidge is not 100% compatible... so yeah it won't be 100% compatible at 60fps....
But it should be a solid 30fps with frameskip1 on N8x0 at the very least..

i babble - sorry again about no releases - i'm not dead yet
Please do prove me wrong. There is nothing I would rather see than having a fully functional SNES emulator on a tablet.

eliagp 2008-07-29 02:24
Re: Full Speed SNES Emulator
 
I am certainly hoping to see Chrono Trigger on my n800. Can't help much except for moral support but good luck!

Omega 2008-07-29 14:11
Re: Full Speed SNES Emulator
 
It should be possible to get this working - I'm not denying the work behind it (and that it is beyond me).

But we have to remember that emulators have been happening since the days of <200MHz CPUs. Regardless of their larger instruction sets there's still a lot of horsepower to be accounted for even after a conservative opinion of the hardware of the N8x0es.

I remember running SNES emulators on 100MHz 486DX/2s. I find it hard to believe that a 400MHz arm capable of running Warzone 2100 can't be expected to emulate an SNES -- even at full speeds.

eliagp 2008-07-30 04:06
Re: Full Speed SNES Emulator
 
I'm guessing the problem is not horsepower but how to use it towards the game, there's work being done towards a PSX emulator so SNES should be very possible. :p All I can do now is cheer for the guys who are wasting free time to bring kinda stuff to our tablets.

Underscore 2008-07-30 04:35
Re: Full Speed SNES Emulator
 
The fact that I could run a decent, well, working snes emulator on a Nintendo DS should be a good enough example...

Omega 2008-07-30 10:07
Re: Full Speed SNES Emulator
 
Indeed and of course I feel the same. While none of this type of programming is my focus, I will gladly cheer for anyone making the efforts.

Looking at the comparison still, I bet you maemo uses a comparable amount of resources as Windows 95/98 running on my aformentioned 486. Keeping in mind the 486 also had a fraction of the RAM as the tablet.

This is possible, it just has to be optimzed.

Another issue is that it appears the N8X0 devices have a rather crippled 2D acceleration architecture...PowerVR, but no access to it?! Maybe someone can fill me in on that? Seems kinda boneheadded.

Omega 2008-07-30 22:24
Re: Full Speed SNES Emulator
 
Quote:
Originally Posted by Underscore (Post 208505)
The fact that I could run a decent, well, working snes emulator on a Nintendo DS should be a good enough example...
You'd think. Although the DS has two CPUs and no overhead of a mini Linux distribution...

But it also has a fraction of the remaining resources (RAM especially) and I don't think it has any specialized video acceleration.

General purpose seems to be making a comeback in the name of affordability these days - especially in small devices. The novelty is almost addicting!

Mysticode 2008-07-30 22:42
Re: Full Speed SNES Emulator
 
Quote:
Originally Posted by Omega (Post 208541)
Another issue is that it appears the N8X0 devices have a rather crippled 2D acceleration architecture...PowerVR, but no access to it?! Maybe someone can fill me in on that? Seems kinda boneheadded.
The graphics hardware in the n8x0 devices could be the limiting factor. I recall reading that the bus wasn't fast enough to transfer full-screen video at 30fps - this was impacting video playback. Now it seems that some work arounds have been done here since we can play back video "decently" at least.

In terms of the PowerVR chipset, from what I understand, there are no drivers that support 3D acceleration at least (and possibly 2D as well - that wasn't mentioned in the discussion I read) despite there being hardware support.

This thread has some more details about the hardware limitations in terms of graphics performance.

Mysticode 2008-07-30 22:53
Re: Full Speed SNES Emulator
 
Quote:
Originally Posted by Omega (Post 208767)
But it also has a fraction of the remaining resources (RAM especially) and I don't think it has any specialized video acceleration.
Actually, the DS, like the GBA, does have specialized 2D acceleration. You can read some details here.

Omega 2008-07-30 22:56
Re: Full Speed SNES Emulator
 
So really NEC is restricting access on a basis that Nokia doesn't find worth pursuing.

Are there any free implementations of the drivers? Similar to equivalent projects being done for ATI and nVidia chipsets?

My last ARM based device also suffered from a very slow bus. I'm surprised device makers are continuing to stick with such a shoddy architecture. Here's hoping Nokia fixes this up in the next one or two generations. Bus speed is everything and I hope they've learned that it is one corner that shouldn't be cut.


All times are GMT. The time now is 22:27.
Page 5 of 7 « First 34 5 67
Show 40 post(s) from this thread on one page

vBulletin® Version 3.8.8