Petruza

Wow thanks for the extensive explanation.

Ok, I can see that DASM with option -f3 (not sure what the other output formats are, but it was like this on the tutorials) creates a .bin image that just has the raw code, no header. It fills the gap between ORG $F000 and ORG $F100 but has no indication that the start of the code is at $F000 So I suppose the emulator assumes that the image should be loaded at $F000 ? At least I tried the tutorials by Andrew Davie with DASM and Stella and it worked like this.

No please by all means do argue, I'm here to learn from more experienced people. Well I've never done any Android development and am not interested in that for the moment.

Ok, it's been well stablished that the Atari 2600 is not a simple system to emulate. That aside, is there a specification of the bin and a26 ROM file formats?

That's exactly why I want to make emulators, as I said: And I add: and not only modifying the output, maybe modifying the game internals also, or running two emulators simultaneously and linking them in some way so to let two persons play a game that was intended as single player only.

By different behaviour you mean graphics-wise, right? or are there any other risks like desync'ing with the CPU, the HBlanks, etc?

Please elaborate.

I know the most logical answer would be: "Don't. Stella already does it wonderfully". But the thing is, I've started programming a NES emulator some years ago ( for a special valid reason* ) and it is now on an indefinite hiatus. I've been reading about the VCS and think it's a simpler system than the NES, and programming an emulator for it would be a good training for later making one for the NES and Commodore 64 which are my other goals. I've already finished all the 6502 instructions, so I have part of the job done. Although keeping the cpu in sync with the TIA and Bank switching are complex, the simplicity of the TIA vs. NES' video chip and the Atari's CPU-programmer-driven interrupts vs. NES' interrupts, make it simpler to model. TL;DR: So, how the VCS works is fairly well covered by the programming tutorials out there, but I need some directions, if there are any, on specific VCS emulator development, mainly cartridge ROM file formats description, and anything else I can't think of now. *: Why make yet another emulator for an already emulated platform? Well, I have two reasons, the first one is I wanted to keep my C++ skills in shape, after working for years on web development. And the other is that I want to make emulators that don't just emulate the games exactly how they were, but that are capable of modifying the the game's output at runtime, kind of what Pacifi3D did with Pacman. I tried reading some emulator's source, but honestly I found them too cryptic because of low level C optimizations, and wanted to live the experience of writing one from scratch anyway.

LOL no, I didn't even notice that. Now I get it, I was counting the CPX just once, not realizing the obvious fact that it was being executed inside the loop, so adding 128 times its cycle count, not just once. Now I see it. Thanks for the clarification. By the way it's a great tutorial, I'm enjoying it a lot.

Hi, I must be missing something, but both pieces of code iterate $80 times, one counts from 0 to $80 and the other from $80 to 0 wrapping around. So the only difference in cycle counting I find is the CPX #$80, what else is accounting for a 160 cycle reduction?

Hello there, I'm trying WUDSN which seems a really great tool. I'm testing a screen flashing program which I already compiled with DASM by hand and I know it works. I've set up the WUDSN plugin and specified the path to the DASM compiler, but when I try to compile the project, I get an error in the problems tab that says that the path to the MADS compiler is not set. How do I tell WUDSN that I want to use DASM and not MADS? Thanks in advance! Update: I realized I had to associate the .asm extension to the DASM editor. Now it compiles, but in .bin format for Atari 2600, how do I specify WUDSN to compile for Commodore 64? From the command line I just run DASM hello.asm -ohello.prg And it figures out to build for C64 on its own.

Maybe for something like this: Or maybe an admin considered he was talking nonsense, which is highly probable, although it was a damn funny nonsense.

Please do not do this or harass him in any other way. Thanks, ..Al Oh! maybe this IS proof that Joe has indeed a deal with admins for his protection...

Was he banned for good? I miss his hilarious posts

Booo. This was fun. Ok, back to the real life now.

Hey I'm not "against" Joe, I'd love if he just went on and complete NES ROM maker and shut us all up. But in the meanwhile I'm enjoying this thread as hell!

WTF? Does this make any sense to anyone? Joe, stop fucking around and go read a C tutorial. I guess he just read the Bootcamp documentation which only lets you use one extra partition besides the MacOS one.

It's really astonishing how Joe manages to talk seriously despite all the jokes of this thread falling on him like falling rocks.

Joe, you keep talking about profit, as Nukey Shay said, theirs hardly any profit in developing games for a console maid more then 30 ears ago. Your neither getting any profit from NES Rom maker, not many people we'll pay for it in case its not free, and you won't get any donations either. ( even I offered to donate and you ignored me ) Let's phase it Joe, that 60% is actually you and you alone. You maid it very explicit that you're own intentions are having someone else do this NES ROM maker so you can have fun making you're Zelda fan-fiction games. PS: Yes, I gave up, now isle right in Joe_Crackerian syntax.

Oh, I'm sorry I implied you had no designing skills, I was all wrong! You DO know how to download fonts! PS: I swear I'll buy you a cart if its design is this:

And, ladies and gentlemen, here you have Joe_Crackerhead's graphic design expertise: (below) PS: Another gem four your amusement: Sailor Moon forum thread about our friend Joey

A monthly salary? I'll do it. What are your project deadlines? Oh please DO contact him, and then quote his reply in this thread, it would be epic. Its current state? what state do you think it's going to? It's a C compiler, I guess it won't go anywhere from that. Compiling C code. Notes: "its" refers to "something owned or related to 'it'" "it's" means "it is" "there" refers to a spatial location "their" refers to something owned or related to "them" "they're" means "they are" All of the above are different words or phrases. I don't like grammar trolls on forums, but your grammar is really an eyesore. But it's like you said in one of your videos, if your school used a NES to teach you, you would have studied, entered into college, got laid, and learned how to spell!

Damn! Hey Joe_ButtCrack, the real secret name of your project isn't by chance "Skynet", is it?

Hey Joe, you should consider my proposition for a donation, making custom videos by request could be a good way to raise donations for the NES Rom maker.