Cheat Engine

[Stregum]

Hey all, i'm just messing around with AOB for practising, i wanted to NOP the instruction that changes the value using aobscan and db in the step 5 of the tutorial, but ce can't find the "bytes part" of this instruction when i scan for it (look at the screen)
Do you know where the problem is ?
Thanks

[Dark Byte]

that is because you have the writable checkbox checked, which means that the memory has to be writable. Code is often not writable

Also, copy-on-write is disabled, which means that the memory may NOT have the copy-on-write flag (that means that as long as it's copy-on-write the memory has been unchanged). Code is often in copy-on-write.

So, gray out writable and copy-on-write

[Stregum]

Thanks Darkbyte, that works now, i was just wondering, the guys like you (badass in asm, memory, etc) how long did it take you to reach that "level" of knowledge ? did you principally learned from yourself (experience, mistakes, etc..) or by reading a tons of intel pdf files (because things can't be invented) ?

Because i'm a beginner and i would like to have a "good" level of knowledge, and i'm curious to know how did you achieved this knowledge. I'm asking that because i'm not English, and sometimes documentation is hard to follow. I guess the 2nd question is silly but we can't know, maybe you've learned a lot of things by yourself, thanks for the help, tips, and this amazing program .

[Dark Byte]

First I would be to just lean English. Make it your native language if you can.

Anyhow, I started learning asm in the late 80's with the z80 cpu instruction set and later moved over to x86, 80815, x86_64, arm, ...

Of course, you don't HAVE to follow the same route. There's a lot more documentation about this stuff then when I was learning it.

[mgr.inz.Player]

Heh, I started with C64 instruction set. ( BASIC v2.0 , Simons' BASIC, MOS 6510 Assembler ).

[Stregum]

I'll take a look at that