1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21
entity test is end entity test; library ieee; use ieee.std_logic_1164.all; use ieee.std_logic_arith.all; architecture rtl of test is FUNCTION test RETURN std_ulogic_vector IS SUBTYPE vector_t IS std_ulogic_vector(0 TO 3); BEGIN RETURN vector_t'(OTHERS => '0'); END test; begin end architecture rtl;