nesdev.org

I'm not sure if those old motherboards use the more modern style Flash memory. You might have to use like a 28F style, if I'm thinking correctly. It also might just depend on the motherboard in general as to which you'd need. The only possible problems I can think of off the top of my head in regard...

Nice job on the LCD. I've considered adding one for a project I have in mind as well. I'm just afraid I'd make a mess out of the NES case though since I don't have a quality dremel. I guess that's what I get for buying something called RotoMatic. The thing that stood out to me though in your pics, a...

After trying to put a copy of Bomberman 2 onto my wire-jungle UNROM board, basing it on the great nesmapper.txt list most of us probably have, I came across a problem. The particular rom I tried didn't work at all, and made me start to think my hardware had a problem (since it was my first test) unt...

It's incredibly easy to make a multicart for 16kB/32kB NROM games. Really all you need is a way to force the mapper to start-up in your menu bank (pull-up resistors maybe). I'd do it with a 32kB page mapper though. The reason I considered sticking with 16k banks for now for a multicart was so that ...

I updated my jungle of wires to support UNROM. http://www.fybertech.com/forums/index.php?topic=453.msg9911#msg9911 I also figure I should still be able to run my patched versions of 16kb NROM games on this setup, and with even more patching, I should be able to get full 32kb NROM games to work as we...

Out of curiosity, is the ozone produced by such a device harmful at all? Would you want to vent one like solder fumes?

EPROMs are certainly cheaper, but I can't ever seem to find a small UV eraser for a decent price on like Ebay that isn't shipped from Asia and wants 220v AC. I heard it's not very hard to build one, but when it comes to UV light, I don't think that's something I want to muck around with. I once look...

I thought some folks might be interested in my crude but effective method of running code in a real NES, using lots and lots of wires, an eeprom for PRG, and sram for CHR storage. A patched Galaga was my test subject. http://www.fybertech.com/forums/index.php?topic=453.0 The technical explanations w...

Hiya folks, I've got a dead Dragon Warrior cartridge here which I thought I might gut, especially for the sram chip, which I'd like to use for CHR ram. The chip is a Panasonic MN4464-08LL, which I can't seem to find the datasheet or even a pinout for anywhere. Either would be much appreciated! Also,...

So I took the plunge and decided to try and move away from NESASM due to its buggy behavior, switching to CC65 instead. The syntax isn't all that different, mostly labels and such. The thing that threw me for a loop for a few minutes was the notion of needing to use a seperate config file to setup t...

Well I'll be darned, the brackets work fine. I certainly wish it would have told me it didn't like parenthesis! And thanks for the info, fellows. The last thing in 6502 assembly I did was with that DCC6502 compiler I think, but I believe there was something about it I thought was strange or lacking ...

Hiya folks, maybe somebody can shed some light on something for me. I had an idea today for running smaller roms via a single eeprom, using ram in place of the CHR rom, saving me from having to program two different chips. To test my idea, I've been patching a copy of the Japanese version of Galaga ...