CS 271 Module 5

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An input/output parameter may be passed by value. True False

False

When an argument is passed by value, a copy of the address is pushed on the stack. True False

False

The CALL instruction functions similarly to which of the following? Move, then Jump Push, then Jump Jump, then Push Jump

Push, then Jump

What general types of parameters are passed on the stack? Reference parameters Local variables Stack frames Activation records Value parameters

Reference Parameters Values Parameters

Which of the following are normally part of the stack frame? (Select all that apply) Saved Register Values Calling Procedure Starting Address Return Address Arguments Local Variables

Saved Register Values Return Address Arguments Local Variables

In the IA32 architecture, the top item on the stack will always have a lower memory address than the bottom item. True False

True

Which offers a more flexible approach, passing arguments to procedures in registers, or on the stack? in registers on the stack

on the stack

When values are received by a called subroutine, they are called __________. variables arguments parameters return values

parameters

The stack frame inside a procedure is also known as the ____________. Program Record Activation Record Activation Stack Procedure Frame

Activation Record

The RET instruction pops the top of the stack into what register? It does not pop the top of the stack into a register. EBP ESP EIP

EIP

Which of the following instructions always modify the ESP register? (Check all that apply) POP PUSH JMP DEC JNE INC CALL RET

POP PUSH CALL RET

What single instruction would I use to save all general purpose registers?

PUSHAD

A stack frame is _____ The area of the stack set aside for storing global strings. An area in the heap that is used to store global variables The area of the stack set aside for passed arguments, return address, local variables, and saved registers. A register window pointing to local variables. The area of the text segment set aside for passed arguments, subroutine return address, local variables, and saved registers

The area of the stack set aside for passed arguments, return address, local variables, and saved registers.

A subprocedure's stack frame contains the return address and its local variables. True False

True

An input parameter may be passed by reference. True False

True

Values passed to a subroutine by a calling program are called __________. arguments variables return values parameters

arguments

ESP always points to ______ the beginning of the stack when your program first began. the last value to be added to, or pushed on, the top of stack. the next, empty, location below the stack. the next, empty, location above the stack.

the last value to be added to, or pushed on, the top of stack.


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