nesdev.org

So I got my INL ROM board today, to make a VS super Mario bros. home edition. When I was looking at it though, It appears that I can't fit the CHR on. Please look at the photos. The PRG fits fine. I ordered a CHR ROM board. Is this what it's supposed to be like? Or did they send the wrong one? If so...

You lift the pins on the chip whose signal differs from those in the holes on the board at the same position. (These are usually pins 1, 2, 24, 30, and 31.) Then you wire those pins to the empty holes by matching up the signals. ROM pinouts : What signal is on each pin or hole NES EPROM conversions...

27C1001 holds 128 KiB of data; NROM can only address 32 KiB of PRG and 8 KiB of CHR. The standard solution is to duplicate the data until it is the same size as the 'PROM, and then tie all unused lines high or low. Thats what I was going to do. So after I program the chips, what pins do I rewire an...

Okay, so I got a NROM 256 pcb and a 27C1001 EPROM. I was stupid however, because I didn’t take into consideration that the pcb only has room for 28 pins, and my chips are 32. Is there a way to convert this? I found this, is this correct?: pin 1 unconnected pin 2 -> hole 22 (under eprom pin 24) pin 2...

Quick question: What colour is the screen when you turn the NES on with no game? I've seen systems that do 00 (dark gray) and systems that do 28 (yellow). The DS effect (dubbed "TakeMeOut" by homebrewers during the DS era based on its resemblance to a PSP-related video that uses a Franz F...

The power-on-color is a function of trivial differences in the inverters that make up the PPU's palette RAM... and to a lesser extent, the exact rate at which Vcc rises when you turn the NES on. (I say "lesser" because that's more or less only a function of the electrolytics in the power ...

Quick question: What colour is the screen when you turn the NES on with no game? The simple answer would be color #00 - gray, but I could be wrong. nescolors.gif I'm wondering if different revisions of motherboards have different colours. The one I have (04) is pink. I had one a little while back (...

Quick question: What colour is the screen when you turn the NES on with no game?

Great Hierophant wrote:Looks like everyone will need to patch their reproductions now.

That's what I thought too! Lol.

Oops. It used to work, but I broke it while fixing something else :oops: It should be fixed now, but I don't have the patience to play through the game to test it. smb2j_mmc3.zip It works! Thank you so much! (Do I get a credit on your website for finding it :D?). Also, do you have an e-mail I can c...

While playing through Loopy's MMC3 hack of SMB2, I saw that at the ending, it's says "Hurrah to Mario". This is fine and all, but I was playing as LUIGI. It then said, "Thank You Mario". To see if this was a new glitch, I played through the FDS version of SMB2, and to my surprise...

Okay, so I ordered the 27c1001 and im going to be using nes open tournament golf. Which pins do I soder to which holes, which pins do I rewire to where etc.? You've already been told this information . Yes, but do the other pins just get soldered in the matching hole? (I believe thats the end of my...

I want to now make a SMB2 Prototype replica (for my PERSONAL USE ONLY). I think it will be easy because it uses CHR-RAM, which means I only need to replace the PRG, correct? I'm not familiar with SMB2 Prototype, but if it uses CHR-RAM and so does the donor cart, then yeah, you only have to change t...

Do you have a list of all the glitches that are fixed?

Kilobit, NOT kilobyte. Then are there any 1024 Kilobit EPROMs that are 28-pins? No. A 128KB 28-pin mask ROM (which can only be read) needs 17 address lines, 8 data lines, GND, +5V and /CE, so there are no pins to spare. Programmable chips like EPROMs and FlashROMs need more pins, for things like th...