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The Mega Drive has a low resolution function that runs at 256*224, the DS runs at 256*192. Going by your confusing question you are asking why you can see the whole screen.Quote:
Originally Posted by puslar_t
The answer is simply because that game probably runs with the "low-res" mode in order to run faster. 3D flight sims often abused this along with huge borders to get every last bit of lag gone... not that it really helped. :p
:D I have a really good idea,isn't there a way for
games like sonic3&knuckles,with too big
of filesize to run,save a cache memory data
so it will not lag.
And how would sega cd lag so much
when ds games like zelda phantom
hourglass with a vsync disable code
goes faster than normal but like twice
fast? :confused:
Sega CD emulation would lag severely because the Sega Cd being emulated along with the Mega Drive can actually be considered half the DS's power, in CPU power anyway. Obviously it would be near impossible to get full speed.
And about running sonic 3 and knuckles, it is already cached in the RAM, its just that the game takes up all the RAM, limiting emulator use.
The reason Phanton Hourglass would run so fast is because it is being told to not delay any of the speed as a simple way of saying this. Very similar results are findable using jEnesisDS by turning off VSync.
:) I know,but is there a way to expand the RAM size so you can play games with bigger romsize?
also,because sonic cd is similar to the regular genesis series except for special stages,should it run a decent speed if
support was made for it
P.S. Jenesis DS runs at a very excellent speed at the current time,I think Sonic CD should run at least 45FPS.
P.S.S. A well-known sonic hack made by tweaker and team megamix of sonic retro called sonic megamix runs at full speed for the most:it has loads of features,huge levels,and currently 5 selectable characters,and even a special sound test!
ds benjmin, unless you have some coding experience yourself, I'd suggest staying away from the "such-and-such emulation should be easy!" comments. They don't help anything.
Sega CD emulation cannot be compared to a native DS game running. At all. The two things are entirely different. For instance, just because the DS can run Super Mario 64 DS doesn't mean it can emulate the N64 at any playable framerate.
I just had expectation because sega cd isn't much
different than genesis. Also I still think it's possible
to make a secondary RAM by making a filetype for it. :) Even though it would take up some space in your sd card but I think it's worth it.
well, there is always some hope, unless author says otherwise :)
How about this,someone can make a special version of Jenesis DS with sega cd support only! :)
You're missing the point ever so slightly. From what I understand, the Sega CD uses the Genesis's processors, too. And while jEnesisDS looks like it's making emulation of the Genesis easy, in reality, Lordus has had to optimize the code several times and make several hacky workarounds in order to ensure its speed. Adding another 68000 to the two processors already being emulated (the Z80 and the 68000) would be near impossible. (I say "near" because Lordus has impressed us all before.) Just look at the old jEnesisDS threads on DCEmu and you'll see that it's been hard getting up to this point.Quote:
Originally Posted by ds benjmin
I doubt that would help anything, because the Genesis still has to be emulated anyways. And "someone" would be Lordus, as jEnesisDS is closed source until/unless Lordus says otherwise.Quote:
Originally Posted by ds benjmin
I'm not trying to be a jerk, I'm just trying to inform you that your expectations may be a bit too high for the DS to handle.
sorry :( ,by "someone" I meant Lordus.
But if each newer/excellent release it gets faster
which makes me think eventually,it will be able to run any sort of sega cd rom
or maybe even 32x roms.
And also,I hope in the eventual next release that
the savestate bug is fixed cuz when you load a save-state,it is missing some sound that I think is caused by it overlooking some of the sound channels,
and that there could be screensize options with,widescreen,fullscreen,screen scaling,and screen-size select.
Quote from when I asked about his mysterious plans. :)Quote:
Originally Posted by ds benjmin
Quote:
Originally Posted by Lordus
If you ask me, Sega CD emulation will only happen if sound is NOT emulated, I'm not the author but I'm pretty sure it would be the case =P
ISO size shouldn't be an issue either, you only need to emulate the Sega CD drive and you can load the CD properly, the reason this works is because for the Sega CD game to run it needs to put stuff onto the 256kb RAM.
For example, because I suck at explaining.
Sonic CD's separate acts, zones and I presume timezones are actually separate programs that has to fit into the 256kb of the Sega CD's RAM.
Please correct me if I am wrong, mainly on the RAM size XD
Edit: The soundless save state bug is caused by the emulator not saving the sound RAM or something like that, I presume it should be easy to add sound support while maintaining backwards compatibility, probably through checking the save state size (A save states size will never vary, it takes a complete dump of ALL the RAM it is told to do).
I understand,but I still hope/wish there is a way to make several RAM files,and what makes me curious is with supercard's ds emu built in,it runs almost at perfect speed "with" realtime savestates,and cheats.
I think it has several SRAM associations at once which maybe is how it runs at full speed like with
super mario 64 DS after entering the courtyard
take your game/game itself not rom_ out and it will
not freeze until you read a sign or enter another area!!! :cool:
I'LL just end with this.
Thank you for being so kind with your replies. :D
No matter how hard I try I can't get this to work on my Max Media Dock. 0.7 worked through DSOrganize, but I can't get this version to work. It loads up fine by itself, in DSOrganize, and in that other loader that was posted earlier for the people having trouble with Game and Music, but when I try to load a game it freezes. Any suggestions?
Quote:
Originally Posted by TrekkiesUnite118
I'm afraid after many tries, the only method I could find to work for you is Renaming JenesisDS.nds to bootme.nds. I tried reseting the clock, spinal's menu, and his newer version DSision and in the end only the renaming trick works as of now that I can find.Save states seem to work fine after powering down and on again, so some good news .
Well, I guess that's better than not having it work at all. Would be nice to know why this happens though, could it be a memory problem?
Let me guess, you're a "glass is half full" kinda' guy aren't you?Quote:
Originally Posted by ds benjmin
The SCDS has no built-in emulators of any sort. I don't know what you're talking about. There are no flash carts with a "DS emulator" built in (aka there is no DS emulator for the DS), as they're running the DS files directly on the DS itself. Technically I suppose that's hardware emulation, but the devices aren't running any special code other than the launch code.Quote:
Originally Posted by ds benjmin
I don't get the SM64DS "SRAM associations" thing either. DS games don't use SRAM, they use EEPROM I believe, and that's for saving. What happened is the game loaded an entire area into the DS's 4 MB of RAM, only to be changed when entering a new area or doing an action that requires the game to access more resources from the cart. This isn't entirely uncommon; Animal Crossing for the Gamecube was originally meant to be an N64 game and is small enough to fit entirely into the Gamecube's RAM, so you can take the disc out and still play the full game. Demos sent over either the DS's wireless "download play" option or the GBA's single-pack link cable hookup are loaded entirely into the system's RAM and run, needing no further cartridge access. Either way, it has very little to do with jEnesisDS (other than the fact that you can eject your homebrew device after choosing your game and it'll still work fine until it tries to save, same thing with SNEmulDS and NES DS).
You cannot have a "RAM file" on your card, called a page file, as the DS does not have a MMU - Memory Management Unit. Without this, a swap file on a memory card would be ineffective.
No offense, but sounds to me like you know a couple of DS-related buzzwords and you're flinging them about to make your case when you don't really know what they mean. I'll admit I tend to do the same as well, though I usually specify that I'm not all that knowledgeable about what I'm talking about.
what I meant by built in emulator is that supercard supports ds roms ran straight off the card,and I think the DS uses your current map loaded on sm64DS in its memory but also it keeps the data of that map only but loads the signs from the card.
And about the gamecube,only certain games let you perform this same trick like zelda collection with majoras mask loaded and with you on the map when not in a scene,you can open the lid but it keeps playing by of course,a memory data it keeps,and even when using games that don,t support that,and show the insert disc screen,it keeps it in a frozen state until inserting the disc and closing the lid.
Again though, how does that have any relevance to jEnesisDS?
Correct me if I'm wrong, but I seem to recall that SNEmulDS had some way of loading big ROMs without a memory expander (though one could be used if available). From what I understood, SNEmulDS used some sort of paging system.Quote:
Originally Posted by DanTheManMS
Don't be mad at me, I'm not completely sure what I'm talking about and I probably misunderstood everything :p
No you're right, SNEmulDS does use a paging system to load up chunks of ROM into RAM as needed so that larger games can run. jEnesisDS does not do this, and it's possible that it could be implemented somehow.
However, what ds benjmin is asking about is a "page file" which is different. A page file sits on your hard drive and acts directly as RAM, and the computer stores information there as needed. On your computer, open up Task Manager and go to the Performance tab to see how much of your page file you're currently using. This is done so that, among other things, the computer doesn't crash when it runs out of the amount of RAM actually installed, basically letting you use more RAM than you actually have available. If the DS could use a page file, it would let applications use more than 4 MB of RAM without having to rely on a slot-2 RAM pack, as the DS would write information to the page file if needed. The application would see it all as RAM, though the DS would know the difference.
Well after trying it out for a day or so I must say this is a very good emulator. Out of the games I tried these were the only 2 issues I noticed:
Thunder Force 4 tends to randomly speed up and slow down, for example the intro seems to play a bit faster than normal, then when the title screen appears it starts to slow down.
Sonic 1 in the special stages Sonics animations don't work very well.
Quote:
Originally Posted by DanTheManMS
It has relevance from speed and memory support of the emulator compared to other actual systems/emulators.
EDIT: I got it to work finally, and thanks man, this is one hell of an awesome emulator!
Elaborate, please. I don't mean to sound rude, but you're really not making much sense. Do you assume that just because a system has little RAM there's not enough for a 3D map and its textures?Quote:
Originally Posted by ds benjmin
Either way, that really has no relevance here. Even bringing up fully native code in a thread dealing with emulation has me scratching my head.
I haven't tried Thunder Force 4 in jEnesisDS, but I assume it's a frame rate issue. If the number in the lower left hand corner of the touchscreen is anywhere below 60, it's putting some stress on the DS's processors and jEnesisDS just can't keep up.Quote:
Originally Posted by TrekkiesUnite118
I've tried Sonic 1, though. I'm assuming the hardware renderer can't update that sprite properly in the context of a special stage. You might've noticed that at the end title card, the "SCORE" doesn't go up as the ring bonus and time bonus are being counted, too. Might be a similar issue. If it's a problem for you, I suggest you try holding X (with 6-Button Pad OFF). It gets old after a while, but it updates better.
You will find that in many emulators for DS that running a game that lags lots on an original hardware (Like Thunder Force 4, I presume) will lag a LOT more on the emulator, the emulator is essentially underclocked compared to the original console.
An excellent example is running Recca - Summer Carnival '92 on NesDS. Despite the DS being so much more powerful it is almost always less than 95% speed in emulating that particular game.
I cannot speak for other emus, but in jEnesisDS surely nothing is underclocked. Slowdowns can have multiple reasons. Of course you have to distinguish between ingame slowdowns (for games that lag on the original hardware, too) and slowdowns in emulation (fps dropping below 60fps).Quote:
Originally Posted by Flygon
The former should ideally be the same in an emulator as they are on the real thing, but it mostly depends on how accurate timing is emulated. You'll see sometimes, that turning H-Int emulation "ON" makes those lags smaller.
Thunder Force 4 has some emulation slowdowns in the title select screen, because it thrashes my tile caching sometimes, and ingame lags, that are present on real hardware, too. I cannot really see it "randomly" speeding up and down. I ran it beside Kega Fusion for some minutes, and couldn't notice any big differences.
Hey could someone let me know when the update that'll allow me to play ROMS that are bigger than 3MB is ready. Thank You. Also this is an AWSOME!!!! emulator. Thanks.
I only really used underclocking as an example, I fully understand jEnesisDS is not underclocked but I was saying that it could be one way of putting the slowdowns, the emulator not having enough time to do its stuff and so on.Quote:
Originally Posted by Lordus
I don't claim to be an expert on the Mega Drive, I just know how it works =P
But anyway, great emulator and it has great speed too, it amazes me that NesDS would actually lag more with the crap I tested than jEnesisDS.
By the way, there is a severe error with F-117 Night Storm, the graphics are completely corrupt when you get to the play field (They don't update properly, they change the mappings correctly each frame but the art remains the same).
Sorry, randomly was the wrong word. That's what it appeared to to me, it seemed to go faster in the intro then when the title screen appeared it slowed down.Quote:
Originally Posted by Lordus
Please,
The zip-file looks to be corrupt.
What shoud I do?
/johwil
You can also get it from the 1st post here: http://boards.pocketheaven.com/viewt...t=6563&start=0Quote:
Originally Posted by johwil
The emulator runs extremely well, congratulations, my main issues where the vertical scaling which was explained earlier and the fact that you cant play sonic 3 and knuckles on it :(
another thing that doesnt run too well is the puyo puyo series.
Dr Robotniks mean bean machine (U)/Puyo Puyo 2 (J):
-Messed up title screen + menu
-White shadows on the beans/Puyo
Other than that its an excellent emulator and i cant wait for the updates.
Im glad i now have a console that can run the sonic hacks properly :)
Well, be grateful they're not unplayable. The messed up menu makes it hard to select an option, but on jEnesisDS I go straight to single player mode anyways.Quote:
Originally Posted by shinmarklvl3
Shadows are always a problem in jEnesisDS, the Sonic 2/Sonic 3/Sonic & Knuckles special stage shadows have issues too. But this doesn't render them unplayable. They just look a little weird and take some getting used to. You can't honestly expect a Sega Genesis emulator to run perfectly on hardware specs as limited as the DS's, can you? ;)
Well he did say 'the emulator runs extremely well, congratulations'.Quote:
Originally Posted by ethd
Anyone got Sonic 3D running?I can't... :(
Sonic 3D Blast is above the 4 megabyte ROM size limit.Quote:
Originally Posted by F2bnp
Long story short, it won't fit in the DS's RAM along side the emulator.
Oh that's why.Damn...
Hope the next handheld console from nintendo is powerfull enough to emulate most stuff :P
I don't think Lordus is done with this one. Have a little patience and live in the now.