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checksums / maker codes etc   Message List  
Reply | Forward Message #4097 of 15019 |
RE: [gbadev] checksums / maker codes etc

gbafix works great.  It will also be needed for all amature devrs when the cart writers come out as it inserts the n logo as well. 
-dovoto
-----Original Message-----
From: ninge1 [mailto:ninge1@...]
Sent: Thursday, May 31, 2001 3:25 PM
To: gbadev@yahoogroups.com
Subject: [gbadev] checksums / maker codes etc

Are there any other official devs on the list that have gone through submission and know how to go about setting the maker code etc?
 
I had (stupidly it woudl appear) assumed i would just have to change the stuff in the rom header (rom_header.s from all the examples) and then re-compile.. but that just stops the game from running! Im guessing there must be some tools available i should be using for this?!? ive had a look on wario world and cant see anything?
 
i know on the gbc i just used to write the values in with hex-edit and then run rgbfix to set the checksum and then use some NOA program or other that displayed the header and what was right / wrong - can i do this (or something similar) with gba??
 
any help would be appreciated!
 
you can reply off-list to ninge1@... if you would prefer :)
 
cheers!
 
ninge
 
 
 


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Thu May 31, 2001 10:28 pm

rogersjl@...
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Message #4097 of 15019 |
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Are there any other official devs on the list that have gone through submission and know how to go about setting the maker code etc? I had (stupidly it woudl...
ninge1
ninge1@...
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May 31, 2001
7:36 pm

In message <009b01c0ea07$5d2a5560$8a7ba8c0@ninge> ... There is one byte that keeps your rom from running, it's the complement check at offset 0xBD. At the end...
Dennis Ranke
exoticorn@...
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May 31, 2001
8:33 pm

ninge1, I havent got to that stage yet myself but I remember reading something on the newsgroups about this. I believe there is a little tool hidden away...
Jack Ukleja
jack.ukleja@...
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May 31, 2001
8:45 pm

... I think the hardware debugger uploader can fix this CRC in the devkit and nrdc is calculating the 16 bit CRC isn't needed in the header anymore, only have...
credo@...
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May 31, 2001
9:47 pm

gbafix works great. It will also be needed for all amature devrs when the cart writers come out as it inserts the n logo as well. -dovoto ... From: ninge1...
Rogers, Jason L. ET2 ...
rogersjl@...
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Jun 1, 2001
7:51 am

Cheers for all your help guys! i grabbed a copy of gbafix and everything now works fine on the flash carts as well as the devkit - excellent :) next stop -...
ninge1
ninge1@...
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Jun 3, 2001
6:00 pm
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