合肥工业大学：EDA技术与应用（精品课程）：p275_ex9_17_sequence_statement_RETURN2.TXT

-- VHDL code position: p275_ex9_17_sequence_statement_return2 -- Note : This is code for explaing sequence_statement of VHDL -- See Also: example 9_16, 9_17. -- Debug : no debug --------------------------------------------------------------------------------- FUNCTION opt ( a, b, opr : STD_LOGIC ) RETURN STD_LOGIC IS BEGIN IF ( opr = '1' ) THEN RETURN ( a AND b ); ELSE RETURN ( a OR b ); END IF; END FUNCTION opt;