nesdev.org

Thanks, nocash, this indeed does the trick! :D So am I getting this right: There's a difference between absolute and indirect HDMA table format depending on whether "continuous mode" is used (i.e., bit 7 of the line counter byte is set), because in absolute mode, I do have to list as many ...

So I'm trying to devise a convenient HDMA implementation for a personal game project I'm working on. The idea is to use indirect HDMA mode for the main backdrop color gradient. The entries in the ROM-based HDMA table point to an array in the lower 8K of WRAM. The table itself is laid out like so: SR...

Aside from chip pinout incompatibilities, there might be involved what copier users used to know as "SRAM checks" in a game. This was a software-based protection that checked whether a more-than-needed amount of SRAM was available by reading from <SRAM_size>+1, then comparing the result to...

Does anyone have an SFC NP menu ROM handy? Here you go. :) I have three games on my NP cart: Torneco no Daibouken – Fushigi no Dungeon, Super Trump Collection 2, and Shanghai III, all of which show up in the selection menu when loading this up in an emulator. So obviously, game info (and possibly, ...

Thanks, Ziggy587! :) Is there a way to downgrade? I updated to 2.02 and now my CF card cannot be read. It worked fine with v2.00. I formatted the CF card using Fat32, tried again and it just gives garbage characters when trying to read the CF card. The actual boot menu is fine but cannot read the di...

Thanks for elaborating, lidnariq and tepples, and especially for alerting me to the patenting issue. :!: Now we know why bunnyboy obviously never bothered to add auto-SRAM creation himself, despite all that FAT32 code that he'd already come up with. I wonder whether patent licensing only applies to ...

Thanks for the input! In fact, the boot ROM already has all the code that's necessary to follow a cluster chain (otherwise, game loading wouldn't be possible on the PowerPak at all, unlike e.g. the sd2snes). What I'm not confident about doing yet is adding a routine that actually creates a file. Bec...

as workaround they do want the cartridge to "lean on the right", ie. align it by pushing it against the hot glue on the right side of socket. To me, it appears that they simply cut a >46 pin connector in half for the top slot, hence the hot glue. Just look at how far the connector "o...

Thanks, guys. :) So, what about the future of the SNES PowerPak software? Well ... Once again, I recently wrote to bunnyboy concerning a few important things (e.g., I wonder what more could be done with an only "60% full" FPGA?), but haven't gotten a reply yet. In the meantime, I've review...

I wonder what clock signal the SNES PowerPak feeds to the DSP-1, given the fact that there doesn't seem to be any crystal on the PCB ...

Glad to hear that!

Sounds like a CF card issue to me. Are you using FAT16 or FAT32? The first thing you might want to try is check the card filesystem for errors with Scandisk (or a similar tool). Even if no errors are found, re-format your card using FAT32 and copy the POWERPAK folder onto it first. If the problem pe...

Hello Ramsis - thank you for your work on this firmware! The menu is much easier to navigate and has saved me a lot of time having to go in and rename a lot of my file names that were too long for the original screen width. Thanks a lot! :) I copied the contents of your POWERPAK folder into mine fo...

hey ramsis any update info? I got my snes all hooked up and ready to go. Hey, Scott, v2.02 is basically ready for release. :) The only thing I still haven't decided yet is what to do about the SAVES folder. I've added a compiler switch to easily enable/disable its usage, and would really like to di...

On all my old-style SNES consoles, the RF modulator is built in, with an RCA connector on the back that outputs it (just like the NES). The modulator is a separate metal-shielded module inside the NES/SNES The external gray box is just an automatic RF switch. On top of that, there is in fact a diff...