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Is your code fast enough?
#include <iostream.h>
#include <time.h>
//compare the speed of using assembly and C code
void main()
{
const long num=5000;
const long outloop=100000;
short a[num];
long lTime;
lTime=clock(); //begin
//======================================
//insert your code here
//===================================
lTime=clock()-lTime; //end
cout << "a[4999] = " << a[4999] << endl;
cout << "Your time = " << lTime <<endl;
lTime=clock(); //begin
_asm
{
mov ecx,outloop;
mov ebx,num;
Outloop:
mov edx, ecx;
mov ecx, ebx ;
xor esi, esi ;
xor eax, eax;
DoAgain:
mov word ptr a[esi], ax;
inc eax;
add esi,2;
loop DoAgain
mov ecx, edx;
loop Outloop
}
lTime=clock()-lTime; //end
cout << "a[4999] = " << a[4999] << endl;
cout << "Asm time= " << lTime <<endl;
}