What does Gens 32X VDP debug tell you?

Ask anything your want about the 32X Mushroom programming.

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ammianus
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What does Gens 32X VDP debug tell you?

Post by ammianus » Mon Feb 27, 2012 12:38 pm

I have gotten a basic set of images drawing on 32X in emulators, there is a background image and a set of frames of animation for a foreground "sprite". I think I've figured out how to set the CRAM palette correctly.


I noticed the Debug features in Gens let you see the VDP data. Maybe there is something I am not getting, why does it look like the images are repeated in Raw data? What does this actually tell you?

Image

I am using Gens KMod 0.7c

When I use the latest version of Gens/GS the only VDP debug is it seems to show are the color palettes at the bottom of the game screen.

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TmEE co.(TM)
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Post by TmEE co.(TM) » Tue Feb 28, 2012 8:55 am

32X has 2x framebufffers. While you update one, you show the other.
EDIT: not the case there...
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Stef
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Post by Stef » Tue Feb 28, 2012 9:05 am

I would say the debugger display the VRAM data as 8 bpp bitmap with the colormap colors but in your case i guess the VRAM contains 15/16 bpp bitmap, it's why you see that sort of image duplication.

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Post by ammianus » Wed Feb 29, 2012 12:35 am

Stef wrote:I would say the debugger display the VRAM data as 8 bpp bitmap with the colormap colors but in your case i guess the VRAM contains 15/16 bpp bitmap, it's why you see that sort of image duplication.
Hmm, I've actually set VDP Mode to 8bpp too. When I look at a few other demo roms, I see the same thing, along with distorted colors, so I'll assume that I'm not doing something wrong.

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Stef
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Post by Stef » Wed Feb 29, 2012 6:54 pm

Hmm well, so maybe it is exactly the contrary :p
the debugger shows 15/16 bit bitmap while you use 8 bit one :)

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Post by Chilly Willy » Thu Mar 01, 2012 2:20 am

It might be handy to have the ability to set what mode the frame buffer is shown in regardless of what the VDP is set to.

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Stef
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Post by Stef » Fri Mar 02, 2012 7:07 pm

hmm, bot which copy older message ?

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Post by sega16 » Fri Mar 02, 2012 7:58 pm

What the heck what does this have to do with fm if this is a bot that would be a weird bot?

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Post by Chilly Willy » Fri Mar 02, 2012 8:04 pm

It's just spam - the current spam bots actually try to derive something that SOUNDS like it might fit the thread to keep from getting deleted.

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Huge
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Post by Huge » Sun Mar 04, 2012 1:06 am

Chilly Willy wrote:It's just spam - the current spam bots actually try to derive something that SOUNDS like it might fit the thread to keep from getting deleted.
And now that they reached the point of sensible replies, they'll be able to reply to each other as well. Soon they will become self-aware and take over.

also,
Image

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KanedaFr
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Post by KanedaFr » Sun Mar 04, 2012 8:25 am

to replay back to original post, I'm not a 32X pro so I don't even remember how I made the 32X part !
I assume, like the CD part, I did what Fonzie asked me ;)

I'm not sure I'll change anything on KMod for 2 reasons :
1/ lack of time
2/ waiting for Meradrin version

sorry

ammianus
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Post by ammianus » Sun Mar 04, 2012 7:07 pm

Huge wrote: And now that they reached the point of sensible replies, they'll be able to reply to each other as well. Soon they will become self-aware and take over.
Now I want to know what the spammer said.

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