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Assembly : pop

  • 21-04-2002 5:06pm
    #1
    Ruaidhri
    Closed Accounts Posts: 1,719 ✭✭✭


    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)?


Comments

  • #2
    Keeks
    Registered Users, Registered Users 2 Posts: 2,199 ✭✭✭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.


  • #3
    Keeks
    Registered Users, Registered Users 2 Posts: 2,199 ✭✭✭Keeks


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


  • #4
    Ruaidhri
    Closed Accounts Posts: 1,719 ✭✭✭Ruaidhri


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


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