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1MB MMC5, can the NES handle it?
Posted: Sat May 21, 2011 1:11 pm
by Pennywise
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.
Posted: Sat May 21, 2011 1:39 pm
by Grumskiz
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
Posted: Sat May 21, 2011 4:02 pm
by thefox
There's no limit to the amount of PRG/CHR that the NES can handle.
Posted: Mon May 23, 2011 4:56 am
by qbradq
Don't test with Nestopia.
Posted: Sat Jul 30, 2011 3:11 pm
by Dr. Floppy
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...
Posted: Sat Jul 30, 2011 4:37 pm
by thefox
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.
Posted: Sat Jul 30, 2011 4:43 pm
by MottZilla
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.
Posted: Sat Jul 30, 2011 4:45 pm
by 3gengames
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.