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REQ Help with Simpsons Arcade mode - trying to learn how


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#1 z0mB

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Posted 20 July 2012 - 12:51 AM


Hello fantastic XPGamesaves community,
So I am trying to figure out if I can make a god mode or something similar from this default.xex. I've extracted it from the package and opened it in HxD and tried to find somewhere I can mod health but due to my n00bness I didn't find anything. Can anyone point me in the right direction? Unencrypted and uncompressed default.xex in the link.

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Thank you for any help!
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#2 z0mB

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Posted 20 July 2012 - 01:15 AM

Okay, did some more searching and I think the next step to install xbdm and use idapro to poke float values into the XEX and test what does what
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#3 Caboose

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Posted 20 July 2012 - 09:10 PM

Okay, did some more searching and I think the next step to install xbdm and use idapro to poke float values into the XEX and test what does what


would be a good start. takes some time but could have great results.
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#4 z0mB

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Posted 22 July 2012 - 09:33 PM

would be a good start. takes some time but could have great results.

So I think I figured out that these offsets are what determines the following aspects of the game
0xc442f85b - lives
0xc442f85b - energy
However, when I poke different values into these offsets nothing changes in the game. I got to thinking that maybe these offsets are only a result of a calculation of something that happens in the game. For example, when a life is lost then some calculation happens and then the result is written to the first offset, or when a character takes damage, the calculation is done and the result is placed into the second offset. Any thoughts? I feel this is such a goose chase but am having fun figuring out how to do this.
Is the next step to maybe compile a launcher so whenever a button like the rightstick is pressed that it writes a value to the offset? Like, press right stick and it gives you 99 lives?
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#5 Caboose

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Posted 31 July 2012 - 03:20 PM

i would post in jtag/rgh support and see what all the trainer creators may think. they do this much more than i do and may be able to get you in the right direction.
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