Hi,

I have been posting some questions on and off on this board for the past 2 years or so as I worked on my emulator. Well, I have finished the first version of it, and thought I'd share in case anyone wanted to take a look at it. (I always like seeing the emulators from other people on the board)
The URL is:

http://members.aol.com/mkftp1/nes/un.zip

It's a windows-based emulator that requires .NES files. I'd appreciate any feedback anyone has! I should mention that my emulator has many flaws. The accuracy isn't that great (I used a scanline-based engine), there is no support for PAL machines, color emphasis is not implemented, the sound isn't that great, there is limited mapper support - the list goes on! My focus was to try to get a decent emulator base working, and then try to add some unique features and a somewhat unqiue interface.

The database feature is interesting.

I tried doing a scan (including subdirectories) to make a database from my stuff on CD-ROM, but it crashes about 30% through. Doing one of the directories on there worked ok.

So it crashed when you tried to build a db spanning your CD, including recursive subdirectories? That's no good...if it's not too much trouble, would you mind emailing me (mailto:mkprodsemail@yahoo.com) a directory listing of the cd? A simple "dir /s /b d:\ > list.txt" or something similar would be great. Thanks!

I got a crash too when creating a database from the entire NesRen package. After some research, I found one of the files that caused the crash:
'Super 700-in-1 [!].nes' It's a 3MB file.

Anyway, it's good that someone brings fresh ideas to the emulation community. The Hall of Fame thing seems really cool.
If you're looking for a bigger database so that you can recognize more ROMs, check out Nestopia's database (that's what I'm using :]). It has 6555 entries.Then again, Nestopia is GPLed so if you reuse a part of it, you'll have to release ÜberNes under the GPL as well. It's up to you...

Keep up the good work :)
/Nessie

Thanks a lot for pointing me to the fault-causing NES file. I didn't have this NES file, and after getting it and testing it, the cause of the error was obvious: when reading the header of the NES file in a certain context, I was using signed chars instead of unsigned chars, which of course causes problems with any ROM that has more than 128 PRG-ROM pages - woops! :-) Again, thanks a ton - it would have been hard to track down this problem without your help.

(The program pointed to by the URL in my original post has been updated to fix this error.)

when I tried playing turtles on your emulator all sprites in the games was wrong. a bug maybe..

and btw. (this has nothing to do with your emu..) I discoverd in nintendulator (you see :D) that when I tried to play tekken2 on it all bg looked weird.. should it look weird? or can't nintendulator handle tekken2?

sorry for misspellings

> I discoverd in nintendulator (you see :D) that when I tried to play tekken2 on it all bg looked weird.. should it look weird? or can't nintendulator handle tekken2?

Tekken 2 uses the infamous "Mapper 90", and NOBODY knows exactly how it works.

--
Quietust
P.S. If you don't get this note, let me know and I'll write you another.

FCE, Nestopia and VirtuaNES all handle Tekken 2 without any problems. If you care enough, you can check their source code. Another interesting thing: FCE and Nintendulator show one title screen, whereas VirtuaNES and Nestopia show another. Interesting... :)

After fixing my emu to handle Tekken II properly (effectively copied the code straight from FCE Ultra), all of the *other* mapper 90 games are broken now.

--
Quietust
P.S. If you don't get this note, let me know and I'll write you another.