TITLE Demonstrating Stack Parameters  (sumof.asm)

.686
.MODEL flat, stdcall
.STACK 4096
INCLUDE Irvine32.inc

.data

.code
main PROC
    push 80000h
    push 60000h
    push 40000h
    call SumOf
    exit
main ENDP

SumOf PROC
    mov  eax, [esp+4]
    add  eax, [esp+8]
    add  eax, [esp+12]
    ret  12
SumOf ENDP
END main