macro jmp Go
{
      push    Go
  ret
}

macro call Proc
{
      push    @f
  jmp     Proc
@@:
}

macro ret AddEspNum
{
if ~ AddEspNum eq
 if      (AddEspNum mod 4)<>0
          .err
        end if
      lea     esp, [esp+(AddEspNum+4)]
    jmp     dword [esp-(AddEspNum+4)]
else
   sub     esp, -4
     jmp     dword [esp-4]
end if
}