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The engine I've made for my current project has a maximum of 8 pixels per frame. It only scrolls horizontally. I check every frame to see if the seam is on a new tile column (8 pixels) or metatile column (16 pixels). Then I only update whatever needs to be updated on that frame. I update the whole 3...

Just curious. I was thinking about this. Are there really any problems in NES programming that would be solved better through recursion than some other means? I got really into SNES SimCity for a while and I read a post on another blog/forum once (I forget where) about how power propagates out from ...

Just reading $4016 isn't enough (it would be nice if it were though). You need to tell $4016 that you want it to give you the data from the controller: .LatchController: ;Storing 1 then 0 to $4016 tells the controllers to send button data LDA #$01 STA $4016 LDA #$00 STA $4016 ; tell both the control...

I can see it from both sides. On one hand, getting an audio engine working correctly can be an incredibly difficult, time consuming, and frustrating chore. I wouldn't blame anybody for deciding to use an existing tool to deal with this task. On the other hand, there were assembly programming skills ...

Other, because I also write my own audio drivers based more or less on the Nerdy Nights tutorials. The audio driver in Get It! is a spaghetti code mess, but it works more or less to play the only song in that game. The one I'm writing for my current project has way more features (vibrato, arpeggios,...

If you don't want to use a tool like famitracker: Just doing simple sound effects is pretty easy. when the event occurs in your game that you want to make the sound, just write the correct values to the registers for the channel that you want it to play on (pulse1 is $4000 - $4003, etc.). A little e...

This is pretty exciting. after I gave permission for the inclusion of Get It!, I sort of just forgot about it. It's really nice to see it in this context.

The only way I can think about it that makes sense to me is that the game state has to be determined first, and then the NMI updates the PPU and APU based on the game state. Thinking about it the other way around just doesn't make sense. You can't display stuff that hasn't happened yet. I think the ...

Offtopic but, what in FCEUX makes you say it is easier to debug at this point? I believe I've essentially incorporated all of its debugging features (and added a lot more on top of them), with the exception of a TAS editor, if that counts as one. (I don't mean this as a complaint, by the way, just ...

The best place to start is probably the Nerdy Nights NES programming tutorials: http://nintendoage.com/forum/messageview.cfm?catid=22&threadid=7155 Not all the information is totally accurate or up-to-date, but I think it's still a great place to start. I taught me enough to make my first game. You'...

May be completely unrelated. I was getting a glitch similar to this when using my Everdrive. I deleted the rom on which the glitch was happening and re-copied it onto the SD card. it seems fine now. I don't know whether that's helpful information or not.

I'd love to get into SNES development at some point, and you're right about the lack of documentation. Something like that would be a great tool.

I still use Mario Paint as a quick, easy way to see what tiles will look like on an old CRT TV. It doesn't have as large a palette as I would like, but it does the trick for the most part.

I was also aware of reads from $2007 being corrupted as well, but I never read from $2007 in my current project, so it's not an issue.

Thanks for the info about the other controllers. I'll have to remember that if I ever use them in the future.

I am currently reading the controller in a loop until I get two identical reads in a row. I'm happy with that. It required the least modification to my existing code, and it works fast enough for my needs. I just wanted to make sure I wasn't going to encounter any more surprises. I think I am going ...