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Satourne

mal - Sep 29, 2002

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		mal		Sep 29, 2002
			It seems that Satourne... has benefitted from a fairly major rewrite and can now run Daytona USA at 40 -50 FPS and Panzer Dragoon at 60+ FPS. That's still on a fairly powerful PC with no sound, but it shows great promise.

		Curtis		Sep 29, 2002
			I noticed that - seems you can only run the bios at this stage though. Fingers crossed for some good perfomance real soon though Edit: I just tested out the dynarec release and it runs at between 9 and 25 fps on my 900Mhz Celeron. Not bad since it used to run at a solid 5 on the last release

		mal		Sep 29, 2002
			If you look at the link I gave, there's been a bit on 'unreleased' progress since...

Curtis

Sep 29, 2002

Ah yes, I see now. A translation of the content of that page:

	
	
		
		
			Yes yes, you saw well... it played Daytona the USA to 40-50 images per seconds! And still, it still thinks of gaining in images by rewriting all the graphic routines. Just for information... a television set projects in general of the 25 images second. In addition to Daytona the USA, Fabien succeeded in playing Panzer Dragoon with 1600*1200 with bilinear filtering, the whole with more than 60 images a second... And at the rate/rhythm where the development goes, a limiting device of FPS will be installed!

		Gear		Sep 30, 2002
			Just wait for another big fps drop when they start to deal with sound emulation, cd drive support & stuff

		CyberWarriorX		Sep 30, 2002
			From what I understand cd filesystem emulation, etc. is already done. But yeah, sound will definitely cause a speed hit. Emulating an extra 2 chips that are 22mhz(SCSP) and 11mhz(68k) respectively won't be a minor thing. Though then again, emulating the SCSP even somewhat well may take quite a while, so you might as well enjoy the speed for now. Cyber Warrior X

		Taelon		Sep 30, 2002
			If I'm not mistaken, the Saturn actually incorporates a General MIDI-compatible synthesizer, much like today's PC soundcards. Something like that could be easily done via hardware (Microsoft DirectMusic?)... and sample playback is pretty much a no-brainer anyway. I expect the DSP effects to be the one thing that'll slow the emu down once it's got sound...that and the added overhead of keeping 11 emulated processors running in sync. Still, I'm confident that we'll see a complete, full-speed emu within a year, or two at the most

		antime		Sep 30, 2002
			The SCSP is MIDI-compatible in that it understands MIDI messages (possibly through the aid of a software driver, I'm not 100% certain on that). The actual sounds are either PCM digital audio or a sort of FM synthesis and has nothing to do with General MIDI. The synthesis method is extremely flexible and won't be totally easy to emulate.

		CyberWarriorX		Sep 30, 2002
			Taelon, it's a little more complicated than that. You "can't" just HLE everything. The 68k has it's own code it's expected to run by a game which in turn controls how the SCSP functions. I would also like to point out that not all sound cards support similiar dsp functions, let alone in the right manner. So emulation is still needed. Cyber Warrior X

mal

Sep 30, 2002

	
	
		
		
			Originally posted by CyberWarriorX@Oct. 01 2002, 6:52 am



You can just HLE everything.

You meant can't, didn't you?

		CyberWarriorX		Sep 30, 2002
			Errr yeah.

Fabrizo

Sep 30, 2002

	
	
		
		
			(Taelon @ Sep. 29 2002, 3:28 pm)



...that and the added overhead of keeping 11 emulated processors running in sync.

I was fairly sure the Saturn had 8 processors...?

		racketboy		Oct 1, 2002
			Does this thing work w/ Win2K or XP?

		IceDigger		Oct 1, 2002
			racketboy, it only works with windows 2.0

MasterAkumaMatata

Oct 1, 2002

	
	
		
		
			Originally posted by IceMan2k@Oct. 01 2002, 7:45 pm



racketboy, it only works with windows 2.0

Seriously, if you read the lisez-moi.txt (i.e., readme.txt) file from the WiP builds found on the downloads page... of Satourne's site, you'll come across this:

	
	
		
		
			Satourne est un mulateur Sega Saturn et Sega Titan Video, dvelopp par Fabien Autrel. Satourne est gratuit. Si vous avez pay pour cette version... vous vous tes fait avoir. Il fonctionne sur un PC quip de Win9x, WinNT, Win2000 ou WinXP.

which Babel Fish... translates to this:

	
	
		
		
			Satourne is an emulator Sega Saturn and Sega Titan Video, developed by Fabien Autrel. Satourne is free. If you paid for this version... you be made have. It functions on a PC equipped with Win9x, WinNT, Win2000 or WinXP.

Curtis

Oct 1, 2002

An update of sorts, supposedly written by the author's own hand...

	
	
		
		
			As you've seen on Ben-j's site (Consollection), some games are playable with the SH2 dynarec core that I wrote these last weeks. However, there are still bugs that makes it less compatible than the interpreter core. These bugs are currently being squashed and I want to rewrite all the graphic engine before to make a new version available. After this version is available, the SCSP will be worked on, well.... 



I'll include some docs with this new version that explains the different parts of the interfac so that everyone can configure the emu to get the maximum speed possible. 



See you very soon."

Sound good

		racketboy		Oct 2, 2002
			gee -- thanks there boys Sorry my attention span with French or whatever it was is pretty short. Anyway, I saw some other emu site and it mentioned only win9x -- so I wasn't sure thanks for the sarcasm and help

		racketboy		Oct 3, 2002
			How good (FPS) do you think this would run with a 2.5 or 3 GHz (in a few months maybe) processor?

		mal		Oct 10, 2002
			The newer version of Satourne... has been released, but it sounds like you need to do quite a bit of tweaking to get higher FPS. racketboy - Who knows? It would depend on how any further optimizations go as well as how demanding sound emulation becomes, if it is implemented any time soon.

		fivefeet8		Oct 12, 2002
			Here is a link to some screenshots I made of Satourne running some of my saturn games.. http://www.ngemu.com/forums....d=26494... Panzer Dragoon 1 Daytona USA Radiant Silvergun.. Question?: Is there a way to attach pics to posts like that here? Would be nice for a screenshots section of emulated sega games..

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