nesdev.org

Sorry to not keep up, I went to sleep after I read lidnariq's comment. I did some calculations and worked out that I could get about 33.3 FPS using 4 buffers SFX side and another 2 VRAM side, but that would be insane to code and manage, so I think I'll stick with the 25 I think I can guarantee. It's...

Hey guys I'm writing some code for the super-fx, and I managed to get it to complete the task I need it to in under a frame, which is brilliant. However, after the screen is complete, it then takes far too long for the main CPU to copy it into vram (up to a third of a frame after v-blank). This seem...

I am getting varying results on my consoles. Wait, what?!? So I tuned this to work on my 3 chip PAL SNES, so the first image makes sense. I must've changed something by accident between the first and second versions, because that should still work. NTSC is slightly wrong, which I should've seen com...

Ah, sorry if I offended you, it was meant to be a reference to the screen in the demo Overdrive which displays a similar message.

Here's an edited one without that.

~Molive

Hey guys So I've been messing with f-blank at H-interrupts on screen, when I noticed something odd about how sprites are handled during f-blank in h-blank. I've created a small demo program which creates a different screen on emulators compared to hardware - It seems to differ on all emulators I've ...

Mode 0's constraints are strict enough that an automated converter is going to struggle.

You should see how complicated mode 0 hires' constraints are. It's like a fake dither over everything.

I'm trying to display a sufficiently complex hires image. The image is much larger than 64k in mode 3/4, but in mode 0 it's just slightly under. (I stream part of it during V-blank to get around the limit) It looks horrific with the amount of colours, though, so I thought I could increase them using...

Hey guys. I was wondering for a project if anyone has an image converter like this one which allows for image conversion with hdma tables, but one that works in mode 0. For an image I want to display I have to work in mode 0, and it's be way easier if I could use HDMA to increase the palette. If not...

This has most likely been asked in loads of other places before, but my searching of this forum doesn't seem to bring up anything useful, so I'm going to open a new topic. Feel free to redirect me elsewhere. How do I scroll the screen? Not as in just moving the screen x and y, that's just updating a...

Ah, sorry lidnariq, I didn't know. Thanks for telling me.
That makes a lot of sense, and I think I'll do most of what I need in 8pp, with some in mode 5 and like one or two really high colour images.

Thanks guys,
Molive

Tepples: That image may be quite good under just 256 colours: I think it looks better even, as you're in a 5-5-5 colour space compared to the 4-4-4. However if you really wanted to show off the 4-4-4 colour space you'd have to use a really high colour image which ends up using more than 256 colours ...

That 32768 colour demo seems to use hdma to force the same R colour per scanline, which means that it can't be used for arbitrary images :/
Is there other ways?

Hey guys. I've been trying to think about what the limits are on colours on the snes, and I couldn't quite work it out. Using just colour math, and possibly hdma, what is the limit on the colours per frame on snes? I worked out maybe 4096 colours was possible, but can you hit the 32768 colour limit?...

Hey guys, I've created a board which I can use for SA-1 dev. However, I've found that the Minipro programmer I'm using with an adapter is having trouble writing data to the 27c322 rom chips. Has anyone else had this problem before, or could anyone suggest why it's not working? The chips read perfect...

Anything above 1mbit BW-RAM 32mbit ROM requires the Super MMC decoder which is found on the chip. As far as I'm aware no game used anything requiring this amount, so I'm not sure if emu devs have fully implemented it. :p Thanks for clearing this up guys. It seems there's a few places where the manua...