//arrayExec.cpp
//complie with: g++ arrayExec.cpp -o arrayExec.exe
//or cl arrayExec.cpp
#include <stdio.h>
#define SIZE 1024
//等效的代码
//void call(int* n)
//{
// n=990;
//}
typedef void (*F)(int*);
int main()
{
char inst[SIZE];
int op=0;
inst[op++]=0x55;//push %ebp
inst[op++]=0x8b;//mov %esp %ebp
inst[op++]=0xec;
inst[op++]=0x8b;//mov 8(%ebp),%eax
inst[op++]=0x45;
inst[op++]=0x08;
inst[op++]=0xc7;//move $16,(%eax)
inst[op++]=0x00;
inst[op++]=0x10;
inst[op++]=0x00;
inst[op++]=0x00;
inst[op++]=0x00;
inst[op++]=0x5d;//pop %ebp
inst[op++]=0xc3;//ret
int n=9;
//vc7.1的编译器,好像对F function = (F)array;不认帐
F funcion = (F)(void*)inst;
funcion(&n); //结果等价于call(&n)
printf("%i\n",n);
}