Assembly : pop

Ruaidhri

ok iam starting assembly(dont ask ok?)
and i'm trying to figure out the pop instruction.it is supposed to "save" a register.to where?how does it save a register?does it only save one value per register and allows you re re-instate the value later(push register)?

Keeks

I take it is the x86 intrustion set you are using.

From what i can remeber (which ain't a lot a times), the POP instructions takes the top value off the stack.

i think the sytax is

POP desc where desc is the memory location you wan the value to be placed in memory.

I am assuming you know what a stack is? If not let me know and I'll try and dig out some notes somewhere to explain it better than i could now.


btw....i never did ant x86 assembly programming so i may be wrong, but it is close enough.

Keeks

Found a quick example of PUSH and POP with the STACK here. It might help you out.

Ruaidhri

thanks..i'm in the same boat as stephen anyway..