nesdev.org

I'm doing some simple graphics.. mostly just drawing to the nametable and then scrolling. it works fine in other emus (fceud, nestopia, virtuanes) but not nnintendulator. in nintendulator the sound is working and palettes are swapping but there is nothing in the nametables is there something simple ...

The the best PIC (AFAIK) to put on there is an 18F4525, which has 48kB of program memory and 3,800 bytes of RAM. That's good for the wavetable synth and everything but it's not a lot of memory for big samples. I just thought it was pretty cool that a program like this is much like I had in mind whe...

just noticed this thread when i wanted to create a user account on the wiki

hope to see the new wiki started.. an area for "how tos" for basic stuff like proper nes initializations would be awesome

hey thanks a lot for ASM6.. it's definitely the most straightforward NES assembler i've used

i might recommend including the NES101 tutorial in the ASM6 distribution file though

I would be cool if someone made a synthcart for the NES like midines but with an PIC or similar added that could do mixing of X extra channels for drums and output it to $4011. then we would have a "groovebox"-nes ;) yeah.. perhaps Memblers Squeedo could be used for that.. using that mapp...

lol ok you convinced me.. definitely no display during playback.. 60hz buzz and timing problems? no thanks! for synthesis i think I'm going to write a different loop which will only handle sounds up 256 samples long. that will allow frequencies as low as 345hz to complete 1 wave cycle. no so good fo...

Here's an mp3 of the output sound quality is pretty damn good for a NES :D well, ok, pretty good for FCEUD. VirtuaNes and Nestopia had some additional high pitched white noise which i don't know is an artifact of the emulator or an attempt to emulate the proper sound of the nes. wish i had $150 to ...

don't feel bad Disch.. i have read that file, but it was hella long ago. lol

MottZilla wrote:Disch's docs say -1 and -2 for fixed banks.

oh, i guess i didn't realize thats what the {-1} and {-2} meant. cool

thanks everyone for your help

ok, i think i understand more. for most mappers, any bank can be swapped into the swappable bank area that still leaves the 'fixed banks' though.. are those in the same place for each mapper? this is not in most mapper documentations i've found, even your crazy comprehensive list Disch (or at least ...

i just meant which banks in the NES file correspond to which banks that the mapper uses here's the layout for UxROM (mapper 2) which i just used - 10NES header - 16k PRG-ROM banks 1-15 (Must be 1, 3, 7 or 15 banks) can be swapped into $8000. - 16k PRG-ROM last bank , fixed at $C000 - 8k CHR-ROM i wa...

Try not to confuse the ROM layout of the iNES mapper and the layout of PRG/CHR ROM space in the NES' actual memory space. yeah, i'm wondering the layout of the actual .NES files. I know the NES ROM space is from $8000 to $FFFF and is usuallyk broken up into 2 banks at $C000 I just was wondering if ...

thanks.. i'll keep looking for the layout.. i've looked on the wiki here and in disch's mapper docs but neither has the layout of the actual .NES file

edit: looks like the firebug mappers.doc has layout info on quite a few mappers

1 second / (44100 bytes / 16 kilobytes) in ms is about 370 ms.. that is plenty of time for drum samples.. if each eighth note hit is 370ms, the BPM would be about 80 bpm. edit: woot got PCM going.. right now it sounds a little faster than 44100 but all i'm doing is counting and looping. looking at m...

If this would be something that you'd be interested in for instrument development, I could build another prototype. it sounds interesting but way over my head right now lol.. I'm happy right now that i've got a rom that does nothing but loops 1 dpcm sound over and over lol for PCM sample rate, 44.1...