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What does " find out what accesses this this address&qu

 
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darkfuryex
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PostPosted: Sun Oct 12, 2008 4:56 am    Post subject: What does " find out what accesses this this address&qu Reply with quote

as topic title..what does this 3 option do and mean?

"Find out what accesses this address"

"Find out what writes to this address"

"Find out what reads from this address"

how and when should we use them? for example if i wanna find the command/address that decreases my health..which one of the above should i use? do they have a difference?

and lastly why whenever i use the function " Find out what reads from this address" all my value in the address will turn to ?? making my cant find anything? help pls... thanks in advance!~
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Psy
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PostPosted: Sun Oct 12, 2008 4:59 am    Post subject: Reply with quote

Find out what writes to this address will show you the opcodes that directly write to (update) your health address for example. Find out what accesses this address will find out what addresses both read and write from that address. Useful when you want to keep something updating and not wait for an instruction that only reaches it when you get hit or take damage for instance. And the read one causes problems with a lot of things. Just use the access one to get the benefits of both Wink
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darkfuryex
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PostPosted: Sun Oct 12, 2008 5:04 am    Post subject: Reply with quote

[Psych] wrote:
Find out what writes to this address will show you the opcodes that directly write to (update) your health address for example. Find out what accesses this address will find out what addresses both read and write from that address. Useful when you want to keep something updating and not wait for an instruction that only reaches it when you get hit or take damage for instance. And the read one causes problems with a lot of things. Just use the access one to get the benefits of both Wink


ah i see...thanks for the reply
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DarkArc
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PostPosted: Sun Oct 12, 2008 5:09 am    Post subject: Reply with quote

Quote:
how and when should we use them? for example if i wanna find the command/address that decreases my health..which one of the above should i use? do they have a difference?


i remember dark byte wrote that to find what decreases your value use "whats accesses to this address" i guess its just like [psych] said but in other words explanation also appears in CE tutorial.
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Dark Byte
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PostPosted: Sun Oct 12, 2008 5:46 am    Post subject: Reply with quote

there is a difference between with reads. Instead of using hardware breakpoints it uses memory exceptions by setting memory to not-readable.
This sometimes works, but in multithreaded games this can lead to crashes. (stripped from ce 5.5)

edit, didn't read [psych]'s reply completly, yes, it crashes

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