1MB MMC5, can the NES handle it?

Pennywise · Post by **Pennywise** » Sat May 21, 2011 1:11 pm

From what I understand the MMC5 can handle 1MB PRG, but I don't think I've ever seen a game that was big. There is one old fan translation of FF3 that has 1MB PRG, but it doesn't work on Nestopia.

Grumskiz · Post by **Grumskiz** » Sat May 21, 2011 1:39 pm

I think the FamiCom remake of Final Fantasy VII was even bigger than 1MB total PRG and from what I know, it plays fine on the system. Emulators are a different story ;3

thefox · Post by **thefox** » Sat May 21, 2011 4:02 pm

There's no limit to the amount of PRG/CHR that the NES can handle.

qbradq · Post by **qbradq** » Mon May 23, 2011 4:56 am

Don't test with Nestopia.

Dr. Floppy · Post by **Dr. Floppy** » Sat Jul 30, 2011 3:11 pm

qbradq wrote:Don't test with Nestopia.

Is that DMC-triggered false-positive joypad strobe thing particularly bad with NEStopia? I encountered it earlier today, and it made me most vex...

thefox · Post by **thefox** » Sat Jul 30, 2011 4:37 pm

Dr. Floppy wrote:
qbradq wrote:Don't test with Nestopia.
Is that DMC-triggered false-positive joypad strobe thing particularly bad with NEStopia? I encountered it earlier today, and it made me most vex...

Well, Nestopia actually emulates that bug, which is a GOOD THING.

MottZilla · Post by **MottZilla** » Sat Jul 30, 2011 4:43 pm

I believe the MMC5 pinout shows an address line to PRG for a ROM as big as 1 Megabyte. I'm not sure if the ROM socket on any PCB has it connected though. Why do you need 1 Megabyte of PRG? You can accomplish this with MMC1 being wired similar to SXROM/SUROM. Or by wiring up a UxROM type board to have more PRG register bits.

3gengames · Post by **3gengames** » Sat Jul 30, 2011 4:45 pm

MottZilla wrote:I believe the MMC5 pinout shows an address line to PRG for a ROM as big as 1 Megabyte. I'm not sure if the ROM socket on any PCB has it connected though. Why do you need 1 Megabyte of PRG? You can accomplish this with MMC1 being wired similar to SXROM/SUROM. Or by wiring up a UxROM type board to have more PRG register bits.

And you can get more then 1MB is you then use the CHR-ROM lines to switch the 512K banks, and then just use CHR-RAM.