.386
.model flat, stdcall
option casemap :none
include c:\masm32\include\windows.inc
include c:\masm32\include\user32.inc
include c:\masm32\include\kernel32.inc
include c:\masm32\include\msvcrt.inc
include c:\masm32\include\masm32.inc

includelib c:\masm32\lib\masm32.lib
includelib c:\masm32\lib\user32.lib
includelib c:\masm32\lib\kernel32.lib
includelib c:\masm32\lib\msvcrt.lib
.data
a db 1,2,3,4,5
b db 1,2,3,4,5
n db 5
r db 2
mestitle db "bbbb", 0
form db "EDI: %u",0

.data?
buffer db 512 dup(?)


.code
Main PROC

push offset r
push offset a
push offset b
push offset n
call f
f proc
    dec ecx
    push ebp
    mov ebp, esp
    mov ebx, [ebp+12]
    mov edx, [ebp+16]
    mov ecx, [ebp+20]
    mov esi, [ebp+8]
  summ:
    mov eax, ebx
    add eax, esi
    mul eax
    mov edi, eax
    mov eax, edx
    add eax, esi
    mul eax
    mul edi
    ;
    add ebx, ecx
    add edi, ebx
    add edi, esi
    jcxz summ
f endp
invoke wsprintf, ADDR buffer,ADDR form, edi
invoke MessageBox,0,ADDR buffer,ADDR mestitle,MB_OK
invoke ExitProcess,0
ret
Main ENDP
END Main