Help/Support When testing what does it mean?

[Juku 5k iPhone SE 11.3.1]

What does $r1=0x1 mean? Like what does it do and what does it test. Also, when your watchpoint gets a hit. Is it the the offset or memory adress it gives you IDA. I thought it was offset, but in a video it was the memory adress the guy was following. So set *0xMemoryAdress=0xArm is what I'd do in Gdb? But in lldb what would I do? mem wr -s 4 0xMemoryAdress 0xthumbhex? Because I was able to hack ammo but I forgot if it was the offset or memory adress I searched for in ida lol

Updated February 6, 2017 by Gaius

[Juku 5k iPhone SE 11.3.1]

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[KFCzZz 10.4k iPad Air 10.3.3]

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[Crypto 7.7k iPhone 6 9.1.0]

dpnt bump unless given permission

No need to say it when it's already been told by the user on top of you.