.486

.MODEL FLAT

.CODE

PUBLIC _myFunc

_myFunc PROC

  ; Subroutine Prologue

  push ebp     ; Save the old base pointer value.

  mov ebp, esp ; Set the new base pointer value.

  sub esp, 4   ; Make room for one 4-byte local variable.

  push edi     ; Save the values of registers that the function

  push esi     ; will modify. This function uses EDI and ESI.

  ; (no need to save EBX, EBP, or ESP)

​

  ; Subroutine Body

  mov eax, [ebp+8]   ; Move value of parameter 1 into EAX

  mov esi, [ebp+12]  ; Move value of parameter 2 into ESI

  mov edi, [ebp+16]  ; Move value of parameter 3 into EDI

​

  mov [ebp-4], edi   ; Move EDI into the local variable

  add [ebp-4], esi   ; Add ESI into the local variable

  add eax, [ebp-4]   ; Add the contents of the local variable

                     ; into EAX (final result)

​

  ; Subroutine Epilogue 

  pop esi      ; Recover register values

  pop  edi

  mov esp, ebp ; Deallocate local variables

  pop ebp ; Restore the caller's base pointer value

  ret

_myFunc ENDP

END