RHDN Forum Archive - Header Size

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Romhacking

ROM Hacking Discussion

Header Size

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Topic: Header Size (Read 1 times)

Squall
Guest

Header Size

« on: February 22, 2010, 03:42:12 am »

Quote

NOTE: For the rest of this document, I will be writing in actual ROM addresses (which means excluding the header, which means add 10 to get the file address).

Is header size always 10 or what?

tummai
Guest

Re: Header Size

« Reply #1 on: February 22, 2010, 04:44:10 am »

if by "10" you mean hexadecimal 0x10 (== decimal 16), then yes. .nes files all have a 16 byte header.

Vegetaman
Guest

Re: Header Size

« Reply #2 on: February 22, 2010, 02:21:55 pm »

What tummai said.

Also, Ys III - Wanderers from Ys is a fun game. Good choice.

CelticMinstrel
Guest

Re: Header Size

« Reply #3 on: February 22, 2010, 08:23:07 pm »

I'd say it's generally good practice to indicate when you're using hex, whether with $ or 0x or simply the suffix phrase "in hex". *shrug*

Gil Galad
Guest

Re: Header Size

« Reply #4 on: February 22, 2010, 11:52:39 pm »

Another thing. That game is detected by checksum as having the error in the header. If you go and hack it, the game will probably still run but you won't be able to use the saving feature. You'll have to edit the header manually or with a header editor.

KingMike
Guest

Re: Header Size

« Reply #5 on: February 22, 2010, 11:57:58 pm »

Yeah, I probably should've chosen an example game where the common "good" ROM had header errors.
But I wrote it for Kitsune's translation. He was like "thanks, but I don't need it because of the dictionary compression already in the game". So to not let it go to waste, I turned it into a tutorial.

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