nesdev.org

Not sure what you're talking about - I just tested Videomation in Nintendulator and it worked just fine. You're right, my fault - had it running in PAL mode so the timing was wrong and bankswitching happened at completely wrong positions. Mirroring seems to happen only for header version 1 ("i...

Write 8K, write to bank regs, write 8K more... Videomation manages it. Fancy, never heard of that one! It's also not emulated correctly because Nintendulator mirrors CHR RAM after 8kB... However, it's using mapper 13 which explicitly supports CHR RAM bank switching. Haven't seen anything alike on M...

tepples wrote:How big is the CHR RAM that you plan to use: 8Kx8 or 32Kx8?

How would you write more than 8kB into PPU_DATA when the nametables start at $2000?

I think the implementation is just a consequence of the original iNES format not having a way to specify CHR-RAM size, and the lack of extant MMC5 games using CHR-RAM. Almost any mapper should be able to substitute CHR-RAM for CHR-ROM. Well, I somehow expected the Everdrive could handle CHR-RAM as ...

Ok, had a closer look into the Nintendulator source code and there's absolutely no support for CHR-RAM for MMC5...
Is there a reason why it would be impossible to connect CHR-RAM to the MMC5?

Hi everyone! I'm just twiddling with some demo effects using a 16x16 tile set which is updated using chr-ram during the empty screen areas. I'm currently trying to move this from an MMC3 mapper to MMC5 (because I need some more PRG-RAM and the extended attribute data). But I can't get anything into ...

Say you want a shade of red that is simply not on the predetermined 64-color palette of the NES. Would it be possible to create new colors for the PPU to display? What works reasonably well for me is to constantly toggle between two color sets. For example palette index 1 is 0x14 (#e720a7) in every...