Ensamblador - ¿Cómo hacer un programa Ensamblador 8086 (DosBox)?

.model small

.stack

.data

factor1 db 5

factor2 db 4

resultado dw 0

.code

start:

   mov ax,@data

   mov ds,ax

   mov cl, factor2

   xor ax, ax

l: add al, factor1

   loop l

   mov resultado, ax

salir:

end start

void main()

{

 push        ebp

 mov         ebp,esp

 sub         esp,0F0h

 push        ebx

 push        esi

 push        edi

 lea         edi,[ebp-0F0h]

 mov         ecx,3Ch

 mov         eax,0CCCCCCCCh

 rep stos    dword ptr es:[edi]

 mov         ecx,offset _88D22677_LosPillaos@cpp (0B7C002h)

 call        @__CheckForDebuggerJustMyCode@4 (0B71208h)

    char factor1=5;

 mov         byte ptr [factor1],5

    char factor2=4;

 mov         byte ptr [factor2],4

    short resultado=0;

 xor         eax,eax

 mov         word ptr [resultado],ax

    for (int i = 0; i < factor2; i++)

 mov         dword ptr [ebp-2Ch],0

 jmp         main+48h (0B71748h)

 mov         eax,dword ptr [ebp-2Ch]

 add         eax,1

 mov         dword ptr [ebp-2Ch],eax

 movsx       eax,byte ptr [factor2]

 cmp         dword ptr [ebp-2Ch],eax

 jge         main+61h (0B71761h)

    {

        resultado += factor1;

 movsx       eax,byte ptr [factor1]

 movsx       ecx,word ptr [resultado]

 add         ecx,eax

 mov         word ptr [resultado],cx

    }

 jmp         main+3Fh (0B7173Fh)

}

 xor         eax,eax

 pop         edi

 pop         esi

 pop         ebx

 add         esp,0F0h

 cmp         ebp,esp

 call        __RTC_CheckEsp (0B71212h)

 mov         esp,ebp

 pop         ebp

 ret