함수 스택 처리

============================

함수 인자 전달

============================

void f(int a)

{

int b; // 5.{ESP,4}

b = a; // 6.{MOV EAX,[EBP+8]} 7.{MOV [EBP-4],EAX}

// 8.{ADD ESP,4}

// 9.{POP EBP}

// 10.{RETN (POP EIP)}

}

int main(void)

{

f(0); // 1.{PUSH 0}, 2.{CALL f(2-1.PUSH EIP 2-2.JMP f)}, 3.{PUSH EBP 4.MOV EBP,ESP}

// 11.{ADD ESP, 4}

return 0;

}

---------------- <---- EBP-4h

지역변수 int b

---------------- <---- ESP, EBP

EBP

----------------

RTN

---------------- <---- EBP+8h

인자 int a:0

---------------- <---- ESP

MAIN

---------------- <---- EBP

============================

리턴값 전달

============================

int add(int x, int y)

{

return x+y; // 7.{MOV EAX, [EBP+C]}, 8.{ADD EAX, [EBP+10]}, 9.{MOV [EBP+8], EAX}

// 10.{POP EBP}

// 11.{RETN}

}

int main(void)

{

add(1,2); // 1.{PUSH 2}, 2.{PUSH 1}, 3.{SUB ESP,4}, 4.{CALL add}, 5.{PUSH EBP}, 6.{MOV EBP, ESP}

// 12.{MOV EAX, [EXP]}

// 13.{ADD ESP, 0C}

return 0;

}

---------------- <---- ESP, EBP

EBP

----------------

RTN

---------------- <---- EBP+8h

리턴값: 3

---------------- <---- EBP+Ch

인자 int x:1

---------------- <---- EBP+10h

인자 int y:2

---------------- <---- ESP

MAIN

---------------- <---- EBP

관련 자료

assembly.zip