SpritesMind.Net

Nice to know there's people out there that look at all these oddities of the VDP — maybe we'll have a 100% accurate understanding of the VDP someday.

Anyways, relating to $C0001E, I did some tests regarding $C0001C a few months ago, and documented my results here, as well as a test ROM I ran on ...

No need to get snarky. I think determining the purpose of the wiki was a valid question.

Eidolon's Inn at one time had technical documentation on it, though a lot of links seem to be broken there now and pieces missing. That seems to be quite the problem with resource for Genesis development. A ...

Doubt anyone would have one of those, since that "goldium" chip is indicative of it being part of a prototype run.

(Also, chips are usually plastic on the MD. =P)

EDIT: Bah, Oerg beat me to it...

Quick note, due to the amount of spam and such, there's no way to register your own account, so if any of y'all need one, PM me and I'll figure something out.

So yeah, hopefully we can all compile a bunch of info on the MD, MCD and 32X, so we can have a correct and accurate reference that's not ...

Yep - works awesomely now, besides a few minor graphical glitches. Great job.

Yeah - it compiled fine on my Mac after I removed the switches from the Makefiles that force it to compile in 32-bit mode (I compiled libsdl_image from source so it was x86_64) but it doesn't work - I see the window for a split second, after which it goes away and I get a segfault. I uploaded the ...

Hey, that's very nice. I was gonna write a sprite editor but now it seems I don't have to =P

I'm gonna try to see if I can compile this on OS X - it just links to SDL, so porting this to Windows should not be too hard unless some platform specific features are going to be used.

Why are you so tough to the direct colour mode (:

I am ok to spend all the 100% of performance to show a still image.
Actually I need exactly that.

Do you know a way to overcome those CRAM artifacts?

You are reading my mind - I don't need any water (: reload colours per each 8 pixels is quite ...

You should look at direct color it reloads a new color every other pixel.
http://gendev.spritesmind.net/forum/viewtopic.php?t=1203 I tried the sega cd version on my television and see no such dots. Also I wrote a good converter for direct color that makes importing an image a click away http ...

You cannot even imagine how many such images I have seen for last few months (: Each time I thought I was close to get the result but... you know the outcome.

Such test square-filled images are done in few minutes. Not a problem.
The problem is to get a meaningful image. Ideally of course a photo ...

Well, here ya go:

http://dl.dropbox.com/u/14283494/Forum%20Images/HintColourTest/colourTest.jpg

That's a picture off of the actual hardware(Yeah, sorry about the quality) of the code I wrote, which loads a new entire palette line each 8 pixels — note the CRAM dots, which are mostly visible on ...

Have you tried this on real hardware?
A huge amount of similar code has been written last few months.

If I would have at least 16 colors per each 40 tile line without any disgusting artifacts and other drawbacks I would be very happy.

By the way what hardware/flash-cartridge do you use to put the ...

Actually the best results I get using just the main method not the horizontal interruption.

It's all a matter of how fast you re-load the palettes - The faster, the better. A hand-written piece of assembly like the following would probably work if it's given a few lines of valuable processing ...

It is useful, and when done right will work perfectly fine. Don't set your HInt t o something excessive like every 4 lines - if you have much processing going on, it may not get processed by the 68k for a while. You also have limited time to transfer colours, realistically only 16 during active ...

Hey, awesome test ROM! I've done some very primitive testing on the VDP test register as well. I don't have access to my test notes right now, but I know I've observed effects from a few of the bits you don't have listed. One of the lowest bits disables horizontal interrupts when set, and another ...