nesdev.org

By experience do you mean "using" the wiki or "installing it"? If you do have experience in the installation phase then it could help the future admin if he doesn't have any. I run those two wikis I mentioned (well I have a third private one) so obviously I'm familiar with the i...

blargg I can analyze the sound but it would be useful if the recordings of each type were a bit longer.. like a second or more of white noise coming from each output? also if you could record at a high sample rate it will show how high up the response goes I checked out tepples recordings and the wh...

The administrator of a wiki doesn't need to maintain the articles... any user can do that. in fact it's better if users adopt certain articles and make them "their baby" and work to improve them as much as possible. the wiki admin just needs to make sure everything is working, deal with te...

Memblers wrote: and also I remembered that I was not a big fan of BASIC programming

lol.. yeah.. I learned to program with QBasic and GWBasic, but now when I look at BASIC code i cringe

yeah i recall something about famicon having basic.. I think it even had functionality to use sprites and tiles and whatnot I had an atari 400 when I was super young that my uncle gave me.. it had a keyboard and a BASIC cart as well, but I had no idea what it was for. I always though it was the wors...

http://www.pagetable.com/?p=46 I was looking for information on how to create a simple BASIC to ASM conversion tool, and stumbled across someone who had disassembled Microsoft's BASIC for various 6502 processors. Obviously some modifications to the source would have to be made to run it on a nes, bu...

If you get a Yobo, you should know the square waves' duty cycles are all swapped (seemingly). So everything sounds kind of weird. the sound "being off" seems to be a common complaint on amazon about this one as well I really doubt anything is wrong with your system other than the connecto...

Hey I've never seen this before.. looks like a famiclone, but on Amazon?! And it plays both NES and SNES. I dunno how Nintendo hasn't sued them yet.. http://www.amazon.com/Retro-Video-System-Not-Machine-Specific/dp/B0012NZGJE anybody know anything about it? is it useful as a dev machine, or is it ju...

i like 6502.txt for the way it i laid out.. didn't know about the errors though

actually seeing the description of each clock cycle is cool though, makes it easier to remember how many cycles each operation takes

cool.. definitely nice to save a few cycles

btw maybe a proper "accurate" emulator should reject a UNROM which has any chr-rom banks set? The problem is that "mapper 2" isn't just UNROM, it's UNROM "and compatible", so if emulators act super strict about somewhat minor things like this they typically end up lowe...

i like this one http://nesdev.com/6502.txt

thanks folks :D :D , I created this load CHRRAM routine which seems to work. I also had to set the iNes header to have 0 chr-rom banks or else nestopia rejected it loadchrram: lda #$00 sta chrramCount sta $2006 sta $2006 lda #$d0 sta chrramCount+1 ldy #$00 chrramloop: lda (chrramCount), y sta $2007 ...

I believe UxRom uses chr-ram, I couldn't see anywhere where tiles were written to vram. well if UxROM uses a different graphics technique that would explain it lol.. i just copied and pasted most ofthe code from a nrom tut how can i modify the load_name_tables: subroutine to load into VRAM? bank sw...

this is hopefully enough of the code ; iNES identifier .byte "NES",$1a .byte $10 ; PRG-ROM block .byte $01 ; CHR-ROM block .byte $20 ; mapper info (using UNROM) .byte $00 ; mapper info .byte 0,0,0,0,0,0,0,0 ; pad header to 16 bytes ... reset: sei cld ldx #0 stx $2000 stx $2001 ; Wait two V...