Search found 89 matches

by gravelstudios
Sun Feb 21, 2021 11:34 am
Forum: NESemdev
Topic: Mesen - NES Emulator
Replies: 911
Views: 485358

Re: Mesen - NES Emulator

Mesen doesn't seem to allow me to push A, B, Select, and Start simultaneously This is probably not Mesen. This is probably your keyboard =p Most do not register all of the keys all of the time. Some of the old school IBM PS2 port or high end gaming keyboards will register every key all of the time,...
by gravelstudios
Sun Feb 21, 2021 10:40 am
Forum: NESemdev
Topic: Mesen - NES Emulator
Replies: 911
Views: 485358

Re: Mesen - NES Emulator

I've encountered something that has me scratching my head. I have controller 2 mapped to some keys on my keyboard. Mesen doesn't seem to allow me to push A, B, Select, and Start simultaneously on controller 2. it will allow it on controller 1, but on controller two it will only register 2 or at most...
by gravelstudios
Tue Dec 22, 2020 5:59 am
Forum: NESdev
Topic: List of games that use power-on state to seed RNG
Replies: 36
Views: 8384

Re: List of games that use power-on state to seed RNG

We've discussed SRAM tendencies in the past here. I think some do seem to power-on all 0 or all 1, but I don't think you'd typically find those in a conventional NES (but possibly in clones). PowerPak and Everdrive also initialize large parts of RAM with their menus, though not to 0 or 1. There are...
by gravelstudios
Sun Dec 20, 2020 1:55 pm
Forum: NESdev
Topic: List of games that use power-on state to seed RNG
Replies: 36
Views: 8384

Re: List of games that use power-on state to seed RNG

This thread has given me an idea. A game might be able to detect (somewhat inaccurately) whether it's running on an emulator or physical hardware by the RAM state. if the initial RAM state is all zeros, then the game could be pretty certain that it's running on an emulator. Of course, the opposite w...
by gravelstudios
Thu Nov 19, 2020 5:15 am
Forum: NESdev
Topic: How do you publish an NES ROM?
Replies: 17
Views: 9209

Re: How do you publish an NES ROM?

I haven't reviewed it myself, but this very recently published fork of FCEUX is apparently attempting to make steam publishing of NES ROMs easy: NEStek: https://lowtekgames.itch.io/nestek Oh wow, that is pretty much what I was originally looking for. At this point I'm so far along with my own emula...
by gravelstudios
Wed Oct 28, 2020 12:54 pm
Forum: NESemdev
Topic: What palette does MESEN use?
Replies: 2
Views: 3512

Re: What palette does MESEN use?

OK, thanks. That pretty much sums it up. I already exported MESEN's default palette and was already using it in my project. I just wanted to make sure nobody was going to get mad at me for doing so.
by gravelstudios
Wed Oct 28, 2020 9:51 am
Forum: NESemdev
Topic: What palette does MESEN use?
Replies: 2
Views: 3512

What palette does MESEN use?

Does anybody know where MESEN's default palette came from? I ask because I'd like to use it as the default palette for my emulator/game as well, and I'm not sure whether I'd need permission or something from whoever made it initially. On one hand, it's just a palette...192 bytes of data. on the othe...
by gravelstudios
Tue Oct 27, 2020 5:01 am
Forum: NESemdev
Topic: Custom Emulator for Steam release of Homebrew
Replies: 4
Views: 3175

Re: Custom Emulator for Steam release of Homebrew

Dwedit wrote:
Mon Oct 26, 2020 11:21 pm
Shouldn't really be allocating a new texture every frame, instead you should update the texture.
Yes, that had occurred to me also.
by gravelstudios
Mon Oct 26, 2020 4:54 pm
Forum: NESemdev
Topic: Custom Emulator for Steam release of Homebrew
Replies: 4
Views: 3175

Re: Custom Emulator for Steam release of Homebrew

Visual Studio 2017 community. short version: I got some code off of Stack Overflow for using a Texture2D and passing a Color array to it to draw my screen. I didn't notice that I had to Dispose the Texture2D on each frame. so my emulator was basically hanging onto each frame of video until the garba...
by gravelstudios
Fri Oct 23, 2020 6:25 am
Forum: NESemdev
Topic: Custom Emulator for Steam release of Homebrew
Replies: 4
Views: 3175

Custom Emulator for Steam release of Homebrew

I mentioned in another thread that I'm building a custom emulator using MonoGame framework and C# in which to package my game rom for release on platforms like Steam that require the game to be a standalone exe file. After about a week of work, I have it running (not counting APU, I'm just going to ...
by gravelstudios
Wed Oct 21, 2020 7:29 am
Forum: NESdev
Topic: How do you publish an NES ROM?
Replies: 17
Views: 9209

Re: How do you publish an NES ROM?

I'm pretty well committed to the course of writing my own custom emulator to wrap my ROM in. I've got it displaying nametables and scrolling so far (in grayscale, no color yet). I made some missteps in my CPU code, so I'm rewriting it to be easier to maintain. I'm having fun with it, and like I said...
by gravelstudios
Mon Oct 19, 2020 3:58 am
Forum: NESdev
Topic: How do you publish an NES ROM?
Replies: 17
Views: 9209

Re: How do you publish an NES ROM?

I've already started on my custom emulator using C#/MonoGame and it's coming along OK. I spent the weekend working on it between chores and mountain biking. I'm a little conflicted about it. On one hand, I'm an experienced C# programmer (it's part of my actual day-job) and I'd been intending to lear...
by gravelstudios
Sat Oct 17, 2020 4:04 pm
Forum: NESdev
Topic: How do you publish an NES ROM?
Replies: 17
Views: 9209

Re: How do you publish an NES ROM?

APU aside, a barebones NES emulator would be pretty easy to write, and since you're aware of all the timing constraints of your own game you wouldn't even have to make the emulator particularly accurate in that regard. No need to bother with obscure quirks either, a simple 6502 core and a scanline-...
by gravelstudios
Sat Oct 17, 2020 9:45 am
Forum: NESdev
Topic: How do you publish an NES ROM?
Replies: 17
Views: 9209

How do you publish an NES ROM?

I apologize if this question has been answered previously, but I searched and couldn't really find the details I was after. How do you go about publishing a new NES game on a service such as Steam? Based on my initial research, it seems that they expect the game to be a standalone executable. Does S...
by gravelstudios
Sat Dec 07, 2019 2:17 pm
Forum: 2019 NESdev Competition
Topic: Compo Entry coming soon: NNNNNN
Replies: 20
Views: 13000

Re: Compo Entry coming soon.....

I'm 90% sure that my game won't be done in time, and I don't want to reveal it partially done. When I switched from CNROM to UNROM, I ended up getting deep into the weeds of graphics tile compression, probably way more than I needed to. It was a fun excursion and I learned a lot, but it stalled my p...