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Schmutzpuppe

Donkey Kong rom from maria's view

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I don't know if this is in some way interesting for someone.

In the picture you can see how the graphic in donkey kong (and also in a lot other games) is organised (mode 160x2 btw.).

Maybe it gives you an idea how to hack graphics…

post-3747-1104892591_thumb.jpg

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For more fun, do the same thing to Joust and Asteroids.:)

 

I did this a coupla years ago-- there are some interesting things to be found (like programmer names embedded in graphics). Never figured out how to unlock them in the games themselves tho.

 

Regards,

-John

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For more fun, do the same thing to Joust and Asteroids.:)

 

I did this a coupla years ago-- there are some interesting things to be found (like programmer names embedded in graphics).  Never figured out how to unlock them in the games themselves tho.

 

Regards,

 -John

 

Ok, here we go :)

I rotated the images so it is easier to see the details and you are right there are some hidden gfx :)

I guess there is a way to see the name within the game...

post-3747-1105396779_thumb.jpg

post-3747-1105396780_thumb.jpg

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IIRC its a composit picture of all the sprites used during an atari 7800 game, the game cues up the approprate sprites in the correct sequence and displays them. These pictures are how all of them in thier natural (meaning programed) sequence stored in the game.

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Actually, this is what happens if you take a raw 7800 bin, and convert the whole thing to graphics.

The "snowy regions" are what code looks like when turned to gfx.

 

Regards,

-John

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Actually, this is what happens if you take a raw 7800 bin, and convert the whole thing to graphics.

The "snowy regions" are what code looks like when turned to gfx.

 

Regards,

-John

Yep, that's it.

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Hi

 

And how do you convert from code to graphics?

 

Regards

 

Actually, this is what happens if you take a raw 7800 bin, and convert the whole thing to graphics.The "snowy regions" are what code looks like when turned to gfx.

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Hi

 

And how do you convert from code to graphics?

 

Regards

 

Actually, this is what happens if you take a raw 7800 bin, and convert the whole thing to graphics.The "snowy regions" are what code looks like when turned to gfx.

I wrote a small application that converts every byte to 4 pixel of gfx (mode 160x2).

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Great minds think alike.  I did the same thing a while back:

 

http://www.atariage.com/forums/viewtopic.php?t=26178

 

Similar things could be done for the other graphics modes.  Note: because the palettes are loaded by the code, it's impossible to show the correct colors.

Lol, the funny thing is that I also used red, green and blue to show the pics.

I swear that I didn't know about the old thread :)

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