.386
.model flat, stdcall
option casemap : none
.data
array DWORD 10, 20, 30, 40
.code
start:
    ;write your code here
    mov edi, OFFSET array
    mov ecx, LENGTHOF array
    mov eax, [edi]

    Ciclo:
        mov edx, [edi]
        mov [edi], eax
        mov eax, edx
        add edi, TYPE array
    loop Ciclo

    mov edi, OFFSET array
    mov [edi], eax

    mov eax, [edi]      ;40
    mov eax, [edi]+4    ;10
    mov eax, [edi]+8    ;20
    mov eax, [edi]+12   ;30

    ret
    END start