[General] OllyDbg register math

[Torpedoes]

Greetings fellow engineers, I'm working on reversing a piece of WoW code but I feel a bit limited due to my lack of OllyDbg experience (and ASM experience). Say I'm debugging the following:

CMP	DWORD PTR SS:[EBP+8], 0
JE	SHORT 00CDDB28
MOV	EAX, DWORD PTR DS:[ECX]
ADD	EAX, DWORD PTR SS:[EBP+8]

When looking at the first instruction, I want to see the value of [EBP+8]. When looking at the third instruction I want to see the value of [ECX]. I know I have the registers off to the side but does OllyDbg have some kind of expression window where I could type [EBP+8] (or DWORD PTR SS:[EBP+8]) and have it spit out the result? If not, what are my options? Because doing it manually is rather annoying, not to mention confusing.

[573737534947]

At least OllyDbg2 has Watches which seems to do exactly what you want, plus when you mark an instruction the operands are evaluated below the CPU Section with the current register values. Conditional log breakpoints are also quite useful.

[Torpedoes]

At least OllyDbg2 has Watches which seems to do exactly what you want, plus when you mark an instruction the operands are evaluated below the CPU Section with the current register values. Conditional log breakpoints are also quite useful.

Thanks for reminding me, I remember using it a while back but I guess I forgot.

[Kanyle]

Not sure if this is what you were asking, but you can select the hex dump window, Ctrl + G and type in EBP + 8, as an example. (OllyDbg v2)

[Torpedoes]

Not sure if this is what you were asking, but you can select the hex dump window, Ctrl + G and type in EBP + 8, as an example. (OllyDbg v2)

Yep that's what I used to do, but the watch list is what I was looking for. I was just being an idiot and forgot about it.