pp.vhw

这是一个用VHDL写的简易的CPU的程序

				STD.TEXTIO.write(TX_LOC,string'("Error at time="));
				STD.TEXTIO.write(TX_LOC, TX_TIME);
				STD.TEXTIO.write(TX_LOC,string'("ns smdrl="));
				IEEE.STD_LOGIC_TEXTIO.write(TX_LOC, smdrl);
				STD.TEXTIO.write(TX_LOC, string'(", Expected = "));
				IEEE.STD_LOGIC_TEXTIO.write(TX_LOC, next_smdrl);
				STD.TEXTIO.write(TX_LOC, string'(" "));
				TX_STR(TX_LOC.all'range) := TX_LOC.all;
				STD.TEXTIO.writeline(results, TX_LOC);
				STD.TEXTIO.Deallocate(TX_LOC);
				ASSERT (FALSE) REPORT TX_STR SEVERITY ERROR;
				TX_ERROR := TX_ERROR + 1;
			END IF;
		END;

		PROCEDURE CHECK_lig(
			next_lig : std_logic_vector (1 DOWNTO 0);
			TX_TIME : INTEGER
		) IS
			VARIABLE TX_STR : String(1 to 4096);
			VARIABLE TX_LOC : LINE;
		BEGIN
			-- If compiler error ("/=" is ambiguous) occurs in the next line of code
			-- change compiler settings to use explicit declarations only
			IF (lig /= next_lig) THEN 
				STD.TEXTIO.write(TX_LOC,string'("Error at time="));
				STD.TEXTIO.write(TX_LOC, TX_TIME);
				STD.TEXTIO.write(TX_LOC,string'("ns lig="));
				IEEE.STD_LOGIC_TEXTIO.write(TX_LOC, lig);
				STD.TEXTIO.write(TX_LOC, string'(", Expected = "));
				IEEE.STD_LOGIC_TEXTIO.write(TX_LOC, next_lig);
				STD.TEXTIO.write(TX_LOC, string'(" "));
				TX_STR(TX_LOC.all'range) := TX_LOC.all;
				STD.TEXTIO.writeline(results, TX_LOC);
				STD.TEXTIO.Deallocate(TX_LOC);
				ASSERT (FALSE) REPORT TX_STR SEVERITY ERROR;
				TX_ERROR := TX_ERROR + 1;
			END IF;
		END;

		PROCEDURE CHECK_ncs(
			next_ncs : std_logic;
			TX_TIME : INTEGER
		) IS
			VARIABLE TX_STR : String(1 to 4096);
			VARIABLE TX_LOC : LINE;
		BEGIN
			-- If compiler error ("/=" is ambiguous) occurs in the next line of code
			-- change compiler settings to use explicit declarations only
			IF (ncs /= next_ncs) THEN 
				STD.TEXTIO.write(TX_LOC,string'("Error at time="));
				STD.TEXTIO.write(TX_LOC, TX_TIME);
				STD.TEXTIO.write(TX_LOC,string'("ns ncs="));
				IEEE.STD_LOGIC_TEXTIO.write(TX_LOC, ncs);
				STD.TEXTIO.write(TX_LOC, string'(", Expected = "));
				IEEE.STD_LOGIC_TEXTIO.write(TX_LOC, next_ncs);
				STD.TEXTIO.write(TX_LOC, string'(" "));
				TX_STR(TX_LOC.all'range) := TX_LOC.all;
				STD.TEXTIO.writeline(results, TX_LOC);
				STD.TEXTIO.Deallocate(TX_LOC);
				ASSERT (FALSE) REPORT TX_STR SEVERITY ERROR;
				TX_ERROR := TX_ERROR + 1;
			END IF;
		END;

		PROCEDURE CHECK_nwr(
			next_nwr : std_logic;
			TX_TIME : INTEGER
		) IS
			VARIABLE TX_STR : String(1 to 4096);
			VARIABLE TX_LOC : LINE;
		BEGIN
			-- If compiler error ("/=" is ambiguous) occurs in the next line of code
			-- change compiler settings to use explicit declarations only
			IF (nwr /= next_nwr) THEN 
				STD.TEXTIO.write(TX_LOC,string'("Error at time="));
				STD.TEXTIO.write(TX_LOC, TX_TIME);
				STD.TEXTIO.write(TX_LOC,string'("ns nwr="));
				IEEE.STD_LOGIC_TEXTIO.write(TX_LOC, nwr);
				STD.TEXTIO.write(TX_LOC, string'(", Expected = "));
				IEEE.STD_LOGIC_TEXTIO.write(TX_LOC, next_nwr);
				STD.TEXTIO.write(TX_LOC, string'(" "));
				TX_STR(TX_LOC.all'range) := TX_LOC.all;
				STD.TEXTIO.writeline(results, TX_LOC);
				STD.TEXTIO.Deallocate(TX_LOC);
				ASSERT (FALSE) REPORT TX_STR SEVERITY ERROR;
				TX_ERROR := TX_ERROR + 1;
			END IF;
		END;

		PROCEDURE CHECK_nrd(
			next_nrd : std_logic;
			TX_TIME : INTEGER
		) IS
			VARIABLE TX_STR : String(1 to 4096);
			VARIABLE TX_LOC : LINE;
		BEGIN
			-- If compiler error ("/=" is ambiguous) occurs in the next line of code
			-- change compiler settings to use explicit declarations only
			IF (nrd /= next_nrd) THEN 
				STD.TEXTIO.write(TX_LOC,string'("Error at time="));
				STD.TEXTIO.write(TX_LOC, TX_TIME);
				STD.TEXTIO.write(TX_LOC,string'("ns nrd="));
				IEEE.STD_LOGIC_TEXTIO.write(TX_LOC, nrd);
				STD.TEXTIO.write(TX_LOC, string'(", Expected = "));
				IEEE.STD_LOGIC_TEXTIO.write(TX_LOC, next_nrd);
				STD.TEXTIO.write(TX_LOC, string'(" "));
				TX_STR(TX_LOC.all'range) := TX_LOC.all;
				STD.TEXTIO.writeline(results, TX_LOC);
				STD.TEXTIO.Deallocate(TX_LOC);
				ASSERT (FALSE) REPORT TX_STR SEVERITY ERROR;
				TX_ERROR := TX_ERROR + 1;
			END IF;
		END;

		PROCEDURE CHECK_nbl(
			next_nbl : std_logic;
			TX_TIME : INTEGER
		) IS
			VARIABLE TX_STR : String(1 to 4096);
			VARIABLE TX_LOC : LINE;
		BEGIN
			-- If compiler error ("/=" is ambiguous) occurs in the next line of code
			-- change compiler settings to use explicit declarations only
			IF (nbl /= next_nbl) THEN 
				STD.TEXTIO.write(TX_LOC,string'("Error at time="));
				STD.TEXTIO.write(TX_LOC, TX_TIME);
				STD.TEXTIO.write(TX_LOC,string'("ns nbl="));
				IEEE.STD_LOGIC_TEXTIO.write(TX_LOC, nbl);
				STD.TEXTIO.write(TX_LOC, string'(", Expected = "));
				IEEE.STD_LOGIC_TEXTIO.write(TX_LOC, next_nbl);
				STD.TEXTIO.write(TX_LOC, string'(" "));
				TX_STR(TX_LOC.all'range) := TX_LOC.all;
				STD.TEXTIO.writeline(results, TX_LOC);
				STD.TEXTIO.Deallocate(TX_LOC);
				ASSERT (FALSE) REPORT TX_STR SEVERITY ERROR;
				TX_ERROR := TX_ERROR + 1;
			END IF;
		END;

		PROCEDURE CHECK_nbh(
			next_nbh : std_logic;
			TX_TIME : INTEGER
		) IS
			VARIABLE TX_STR : String(1 to 4096);
			VARIABLE TX_LOC : LINE;
		BEGIN
			-- If compiler error ("/=" is ambiguous) occurs in the next line of code
			-- change compiler settings to use explicit declarations only
			IF (nbh /= next_nbh) THEN 
				STD.TEXTIO.write(TX_LOC,string'("Error at time="));
				STD.TEXTIO.write(TX_LOC, TX_TIME);
				STD.TEXTIO.write(TX_LOC,string'("ns nbh="));
				IEEE.STD_LOGIC_TEXTIO.write(TX_LOC, nbh);
				STD.TEXTIO.write(TX_LOC, string'(", Expected = "));
				IEEE.STD_LOGIC_TEXTIO.write(TX_LOC, next_nbh);
				STD.TEXTIO.write(TX_LOC, string'(" "));
				TX_STR(TX_LOC.all'range) := TX_LOC.all;
				STD.TEXTIO.writeline(results, TX_LOC);
				STD.TEXTIO.Deallocate(TX_LOC);
				ASSERT (FALSE) REPORT TX_STR SEVERITY ERROR;
				TX_ERROR := TX_ERROR + 1;
			END IF;
		END;

		PROCEDURE CHECK_sdata(
			next_sdata : std_logic_vector (15 DOWNTO 0);
			TX_TIME : INTEGER
		) IS
			VARIABLE TX_STR : String(1 to 4096);
			VARIABLE TX_LOC : LINE;
		BEGIN
			-- If compiler error ("/=" is ambiguous) occurs in the next line of code
			-- change compiler settings to use explicit declarations only
			IF (sdata /= next_sdata) THEN 
				STD.TEXTIO.write(TX_LOC,string'("Error at time="));
				STD.TEXTIO.write(TX_LOC, TX_TIME);
				STD.TEXTIO.write(TX_LOC,string'("ns sdata="));
				IEEE.STD_LOGIC_TEXTIO.write(TX_LOC, sdata);
				STD.TEXTIO.write(TX_LOC, string'(", Expected = "));
				IEEE.STD_LOGIC_TEXTIO.write(TX_LOC, next_sdata);
				STD.TEXTIO.write(TX_LOC, string'(" "));
				TX_STR(TX_LOC.all'range) := TX_LOC.all;
				STD.TEXTIO.writeline(results, TX_LOC);
				STD.TEXTIO.Deallocate(TX_LOC);
				ASSERT (FALSE) REPORT TX_STR SEVERITY ERROR;
				TX_ERROR := TX_ERROR + 1;
			END IF;
		END;

		BEGIN
		-- --------------------
		reset <= transport '1';
		sdata <= transport std_logic_vector'("ZZZZZZZZZZZZZZZZ"); --Z
		-- --------------------
		WAIT FOR 100 ns; -- Time=100 ns
		reset <= transport '0';
		-- --------------------
		WAIT FOR 200 ns; -- Time=300 ns
		sdata <= transport std_logic_vector'("0100011100000000"); --4700
		-- --------------------
		WAIT FOR 100 ns; -- Time=400 ns
		sdata <= transport std_logic_vector'("ZZZZZZZZZZZZZZZZ"); --Z
		-- --------------------
		WAIT FOR 200 ns; -- Time=600 ns
		sdata <= transport std_logic_vector'("0010000001000111"); --2047
		-- --------------------
		WAIT FOR 100 ns; -- Time=700 ns
		sdata <= transport std_logic_vector'("ZZZZZZZZZZZZZZZZ"); --Z
		-- --------------------
		WAIT FOR 960 ns; -- Time=1660 ns
		-- --------------------

		IF (TX_ERROR = 0) THEN 
			STD.TEXTIO.write(TX_OUT,string'("No errors or warnings"));
			STD.TEXTIO.writeline(results, TX_OUT);
			ASSERT (FALSE) REPORT
				"Simulation successful (not a failure).  No problems detected. "
				SEVERITY FAILURE;
		ELSE
			STD.TEXTIO.write(TX_OUT, TX_ERROR);
			STD.TEXTIO.write(TX_OUT, string'(
				" errors found in simulation"));
			STD.TEXTIO.writeline(results, TX_OUT);
			ASSERT (FALSE) REPORT
				"Errors found during simulation"
				SEVERITY FAILURE;
		END IF;
	END PROCESS;
END testbench_arch;

CONFIGURATION sum_cfg OF pp IS
	FOR testbench_arch
	END FOR;
END sum_cfg;