N64 Emu

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April 1st, 2006, 10:34
N64DUDE

N64 Emu

does anyone want to or think a nintendo 64 emulator will be ported over to the dreamcast? i heard monkey64 will be available to psp and dreamcast users. i would love to see project 64 on the dc.
April 6th, 2006, 15:22
Eric

I dont think N64 is possible but i heard sometime in the past months that there working on one i could be wrong. But there trying to cut roms into 2 i think so that ram can be handled by the Dreamcast. Dont get your hopes up.

Eric
April 6th, 2006, 15:58
Darksaviour69

i don't think we will ever get a full speed N64 emu, but we might get something that runs something at some sort of speed at some stage ;)
April 14th, 2006, 00:08
SnoopKatt

I saw something about someone working on one, but it looks far from being complete or even being able to run anything.
August 25th, 2006, 08:27
nerdocalypse

i would be absolutely reborn if there were an n64 emu on DC, but even the SNES emu is kinda lame... dont know if its the unqualified coders or the hardware limitations (i'm guessing the former, tho)
August 25th, 2006, 09:40
ACID

Theres always hope.
September 22nd, 2006, 04:16
Elven6

Why is this a problem? I thought the Dreamcast was more powerful?
September 22nd, 2006, 04:59
Junixx

A system need to be alot more powerful to emulate another system, i would say 7-10x more powerful, someone correct me if im wrong
September 22nd, 2006, 06:01
quzar

N64 on the Dreamcast is possible. If it's any indication, bleem was looking into creating an n64 cart reader for the DC, which indicates that they thought it was possible.

Will it ever happen? yes.
Will it be fullspeed? most likely not.
Playable? maybe.
September 22nd, 2006, 06:09
Nemo2006X

Quote:

Originally Posted by quzar

bleem was looking into creating an n64 cart reader for the DC

Do you mean to say Rand Linden thought about it ?
September 22nd, 2006, 06:50
ACID

Quote:

Originally Posted by CPU_Smarts

A system need to be alot more powerful to emulate another system, i would say 7-10x more powerful, someone correct me if im wrong

it need to be atleast 4 times the power of the emulating counsil:D
September 22nd, 2006, 06:55
quzar

Quote:

Originally Posted by Acidburn05

it need to be atleast 4 times the power of the emulating counsil:D

That's an extremely arbitrary number.
September 22nd, 2006, 06:56
ACID

Thenlet us all know. For thats what other coders say.
September 22nd, 2006, 07:09
quzar

it's 100% dependent on the emulated system and the target platform.
September 22nd, 2006, 07:24
ACID

So its about what i was told then.
September 22nd, 2006, 20:26
Elven6

So what did we agree on?
September 24th, 2006, 20:12
GPF

I was able to port Monkey64 for the 2D portion to the dreamcast and was able to play the homebrew pong game on the dreamcast.

Unfortunetly I know very little about 3d coding, and even less about the dreamcast opengl like api and nothing about the psp 3d api

Troy(GPF)
http://gpf.dcemu.co.uk
October 1st, 2006, 19:15
Elven6

So the only problem here is the fact that the rom file is to big to be loaded onto the main ram correct?
October 1st, 2006, 20:40
Smurph

Quote:

Originally Posted by Elven6

So the only problem here is the fact that the rom file is to big to be loaded onto the main ram correct?

Pretty much, and the processor and GPU emulation.

N64 cart = ~50mB
DC RAM = 16MB
October 1st, 2006, 21:08
SSaxdude

Mario 64 is only 6 mb. But the Dreamcast isn't powerful enough to emulate the N64.
October 1st, 2006, 23:37
Smurph

Quote:

Originally Posted by SSaxdude

Mario 64 is only 6 mb. But the Dreamcast isn't powerful enough to emulate the N64.

It depends on the cart. However, it does have 3D hardware, unlike the PSP.
October 3rd, 2006, 03:28
SnoopKatt

An N64 emulator could probably be designed for certain games...
October 4th, 2006, 00:45
Elven6

Mabye a team should work on this so we could get one lol.
October 4th, 2006, 07:26
sixtyten

Quote:

Originally Posted by SnoopKatt

An N64 emulator could probably be designed for certain games...

That's what I was thinking...I'm sure if a great emulator was coded that was almost or as close as we could get to full speed, a system could be developed that could divide the ROMS up and do proper loads off of a disc. Maybe some sort of...I dunno...program that you coiuld plug a ROM in and do very little code manipulating. If it were too complciated to emulate single games we'd never get anything done. Maybe Mario 64 and OOT.
October 4th, 2006, 22:56
SnoopKatt

Don't forget Goldeneye :)
October 6th, 2006, 11:35
peens

it must be possible in some way shape or form. i mean if dreamcast can handle dreamcast games which are larger than 64 games. mind you i understand that emulating is totally different than just reading a normal game but still....theoretically it should be possile right.... right..????
yeah i am probably wrong..
October 6th, 2006, 11:46
Darksaviour69

dreamcast games are loaded from the disc into memory (ram) in small parts. But with cart based console the cart pretty much becomes part on the memory of the console, and so is not structured into parts. Thats why emulators have to load the whole rom into memory. but the dc has got 16mb or ram, so a rom of over 16 can't fit.

but yes there is away around this Using MMU for loading large rom files. AES4ALL does this for large Neo cart games like Metal slug X ( which is about 27 Mbs). you have to convert the rom with a prorgram that breaks it up into smaller parts for the emu can load, but this method is far from perfect and can lead of miss gfx, sounds bugs.

Having said all that, i sure quzar will come in a say " well actually that not 100% right (or even 50% right), i'm a smart ass, and i will tell you how it works...." ;)
October 6th, 2006, 11:59
quzar

Quote:

Originally Posted by Darksaviour69

dreamcast games are loaded from the disc into memory (ram) in small parts. But with cart based console the cart pretty much becomes part on the memory of the console, and so is not structured into parts. Thats why emulators have to load the whole rom into memory. but the dc has got 16mb or ram, so a rom of over 16 can't fit.

but yes there is away around this Using MMU for loading large rom files. AES4ALL does this for large Neo cart games like Metal slug X ( which is about 27 Mbs). you have to convert the rom with a prorgram that breaks it up into smaller parts for the emu can load, but this method is far from perfect and can lead of miss gfx, sounds bugs.

Having said all that, i sure quzar will come in a say " well actually that not 100% right (or even 50% right), i'm a smart ass, and i will tell you how it works...." ;)

I heard my name! =P Yea, that's mostly right, but it's important to note that the mmu is not necessary to do this (and part of the reason that it's so buggy is that kos is designed to work specifically with the mmu turned off). The general Idea is to simply load up only as much as is needed at a time. With arcade systems it should be a LOT easier than how it was done in aes4all because the data is already spanning multiple files (and is usually divided by level or area of the game.

Also, a 16mb rom is way higher than the Dreamcast can fit, you have to remember that in the 16mb of ram we also need to fit: the emulator itself (maybe 1mb), all the data associated with it (which is why I don't use graphical menus =p), the emulated system's ram, buffers for the gfx and audio that is being sent to the pvr and aica, and all sorts of smaller temporary buffers. Depending on the system this usually leaves us with not much more than 8mb of free space. Lots of people say: "well what about the video and sound ram? there's an extra 10mb there" and they are absolutely right, but it is extremely slow compared to main ram, and is meant to be used by the video and sound systems. I know warmtoe in one of him SGAs used video ram to store one rom to load a large game, and in some of my wip things I've stored data to both video and sound ram, with the intention of swapping it into main ram when it's needed (which is faster than reading from the GDROM).

I don't doubt that N64 emulation could be done at good speed on the Dreamcast, although rom loading and control mapping would certainly be at the low ends of what will make it difficult.
October 6th, 2006, 23:58
peens

lol @ darksaviour

way to predict the future:P