diff options
Diffstat (limited to 'ieee_proposed/rtl_tb/test_float_synth.vhd')
-rw-r--r-- | ieee_proposed/rtl_tb/test_float_synth.vhd | 892 |
1 files changed, 0 insertions, 892 deletions
diff --git a/ieee_proposed/rtl_tb/test_float_synth.vhd b/ieee_proposed/rtl_tb/test_float_synth.vhd deleted file mode 100644 index 90b40e8..0000000 --- a/ieee_proposed/rtl_tb/test_float_synth.vhd +++ /dev/null @@ -1,892 +0,0 @@ -------------------------------------------------------------------------------- --- test routine for the post synthesis 32 bit multiply -------------------------------------------------------------------------------- - -entity test_float_synth is - generic ( - quiet : BOOLEAN := false); -end entity test_float_synth; - -use std.textio.all; -library ieee, ieee_proposed; -use ieee.math_real.all; -use ieee.std_logic_1164.all; -use ieee.numeric_std.all; -use ieee_proposed.fixed_float_types.all; -use ieee_proposed.fixed_pkg.all; -use ieee_proposed.float_pkg.all; - ---library modelsim_lib; ---use modelsim_lib.util.all; - -architecture testbench of test_float_synth is - subtype fp16 is float (6 downto -9); -- 16 bit - function reverse ( - inpvec : STD_LOGIC_VECTOR (0 to 31)) - return float32 is - variable result : float32; - begin - for i in 0 to 31 loop - result (i-23) := inpvec(i); - end loop; -- i - return result; - end function reverse; - - -- purpose: converts an float32 into a std_logic_vector --- function to_slv ( --- input : float32) -- float32 input --- return std_logic_vector is --- variable result : std_logic_vector (31 downto 0); -- result --- begin -- function to_slv --- floop: for i in float32'range loop --- result (i + fp_fraction_width) := input (i); --- end loop floop; --- return result; --- end function to_slv; - - -- purpose: converts a std_logic_vector to an float32 - function to_float32x ( - signal input : STD_LOGIC_VECTOR (31 downto 0)) - return float32 is - variable result : float32; - begin -- function to_float32x - return to_float (input, float32'high, -float32'low); - end function to_float32x; - - procedure report_error ( - constant errmes : STRING; -- error message - actual : in float32; -- data from algorithm - constant expected : float32) is -- reference data - begin -- function report_error - assert actual = expected - report errmes & " miscompare" & CR & - "Actual " & to_string (actual) & " (" - & REAL'image(to_real(actual))& ") /= " & CR & - "Expected " & to_string (expected) & " (" - & REAL'image(to_real(expected))& ")" - severity error; - return; - end procedure report_error; - procedure report_error16 ( - constant errmes : STRING; -- error message - actual : in fp16; -- data from algorithm - constant expected : fp16) is -- reference data - begin -- function report_error - assert actual = expected - report errmes & " miscompare" & CR & - "Actual " & to_string (actual) & " (" - & REAL'image(to_real(actual))& ") /= " & CR & - "Expected " & to_string (expected) & " (" - & REAL'image(to_real(expected))& ")" - severity error; - return; - end procedure report_error16; - - component float_synth is - port ( - in1, in2 : in STD_LOGIC_VECTOR(31 downto 0); -- inputs - out1 : out STD_LOGIC_VECTOR(31 downto 0); -- output - cmd : in STD_LOGIC_VECTOR (3 downto 0); - clk, rst_n : in STD_ULOGIC); -- clk and reset - end component float_synth; - for all : float_synth - use entity work.float_synth(rtl); - constant clock_period : TIME := 500 ns; -- clock period - signal stop_clock : BOOLEAN := false; -- stop the clock - signal out1real : REAL; -- real version - signal in1, in2 : float32; -- inputs - signal out1 : float32; -- output - constant zero0 : float32 := (others => '0'); -- zero - signal cmd : STD_LOGIC_VECTOR (3 downto 0); -- command - signal clk, rst_n : STD_ULOGIC; -- clk and reset - signal in1slv, in2slv, out1slv : STD_LOGIC_VECTOR(31 downto 0); - signal indelay : float32; -- spied signal -begin -- architecture testbench - out1real <= to_real (out1); - in1slv <= to_slv(in1); - in2slv <= to_slv(in2); - out1 <= to_float32x(out1slv); - DUT : float_synth - port map ( - in1 => in1slv, -- [in float32] inputs - in2 => in2slv, -- [in float32] inputs - out1 => out1slv, -- [out float32] output - cmd => cmd, - clk => clk, -- [in std_ulogic] clk and reset - rst_n => rst_n); -- [in std_ulogic] clk and reset - --- spy_process : process --- begin --- signal_force ("/DUT/in2reg3", "00000000000000000000000000000000", --- 500 ns, freeze, 5000 ns, 1); --- wait; --- end process spy_process; - - -- purpose: clock driver - -- type : combinational - -- inputs : - -- outputs: - clkprc : process is - - begin -- process clkprc - if (not stop_clock) then - clk <= '0'; - wait for clock_period/2.0; - clk <= '1'; - wait for clock_period/2.0; - else - wait; - end if; - end process clkprc; - - -- purpose: reset driver - -- type : combinational - -- inputs : - -- outputs: - reset_proc : process is - - begin -- process reset_proc - - rst_n <= '0'; - wait for clock_period * 2.0; - rst_n <= '1'; - wait; - end process reset_proc; - - -- purpose: main test loop - -- type : combinational - -- inputs : - -- outputs: - tester : process is - - begin -- process tester - cmd <= "0110"; -- 16 bit to float32 mode - in1 <= "10000000000000000000001000101111"; -- 4.33 ufixed - in2 <= "00000000000000000000000000000100"; -- 4 - floop1: for i in 1 to 100 loop - wait for clock_period; - end loop floop1; - cmd <= "0110"; -- 16 bit to float32 mode - in1 <= "10000000000000000000001000101011"; -- 4.33 ufixed - in2 <= "00000000000000000000000000000100"; -- 4 - floop2: for i in 1 to 100 loop - wait for clock_period; - end loop floop2; - cmd <= "0010"; - in1 <= reverse("00000000000000000000101100000010"); -- 6.5 - in2 <= reverse("00000000000000000001010001000010"); -- 42 - wait for clock_period; - in1 <= reverse("00000000000000000001010001000010"); -- 42 - in2 <= reverse("00000000000000000000101100000010"); -- 6.5 - wait for clock_period; - in1 <= reverse("00000000000000000000101100000010"); -- 6.5 - in2 <= reverse("00000000000000000000101100000010"); -- 6.5 - wait for clock_period; - in1 <= reverse("00000000000000000001010001000010"); -- 42 - in2 <= "01000000000000000000000000000000"; -- 2 - wait for clock_period; - in1 <= "00111110101010101010101010101011"; -- 1/3 - in2 <= "01000000000000000000000000000000"; -- 2 - wait for clock_period; - in1 <= reverse("00000000000000000001010001000010"); -- 42 - in2 <= reverse("00000000000000000000101100000011"); -- -6.5 - wait for clock_period; - in1 <= reverse("10000000000000000000000000000000"); -- 2**-149 - in2 <= "11000000000000000000000000000000"; -- -2.0 - wait for clock_period; - in1 <= reverse("00000000000000000000001000000000"); -- 2**-127 - in2 <= "00111110100000000000000000000000"; -- 0.25 - wait for clock_period; - in1 <= reverse("00000000000000000001010001000010"); -- 42 - in2 <= reverse("00000000000000000000101100000010"); -- 6.5 - wait for clock_period; - cmd <= "0001"; -- subtract mode - in2 <= "01001011111001110011000110011011"; -- 30303030 - in1 <= "01001011111001110011000110011100"; -- 30303033 - wait for clock_period; - in1 <= reverse("00000000000000000000101100000010"); -- 6.5 - in2 <= "01000000100000000000000000000000"; -- 4 - wait for clock_period; - in2 <= reverse("00000000000000000000101100000010"); -- 6.5 - in1 <= "01000000100000000000000000000000"; -- 4 - wait for clock_period; - in1 <= "01000000100010101010101010101011"; -- 4.333333 - in2 <= "00111110101010101010101010101011"; -- 1/3 - wait for clock_period; - cmd <= "0000"; -- add mode - in1 <= "00111110101010101010101010101011"; -- 1/3 - in2 <= "01000000000000000000000000000000"; -- 2 - wait for clock_period; - in2 <= "00111110101010101010101010101011"; -- 1/3 - in1 <= "01000000000000000000000000000000"; -- 2 - wait for clock_period; - in1 <= "00000000100000000000000000000001"; -- 2**-126 - in2 <= "01000000100000000000000000000001"; -- 4+ - wait for clock_period; - cmd <= "0011"; -- divide mode - in1 <= "00111111100000000000000000000000"; -- 1.0 - in2 <= "01000000010000000000000000000000"; -- 3.0 - wait for clock_period; - in1 <= "01001100000011001011110001001111"; -- 36892987 - in2 <= "00000000010000000000000000000000"; -- 2**-127 - wait for clock_period; - in1 <= "10111110101010101010101010101011"; -- -1/3 - in2 <= "01000000000000000000000000000000"; -- 2 - wait for clock_period; - cmd <= "0100"; -- 32 to 16 conversion mode - in1 <= "00111111100000000000000000000000"; -- 1.0 - in2 <= (others => '0'); - wait for clock_period; - in1 <= "10111110101010101010101010101011"; -- -1/3, no round - wait for clock_period; - in1 <= "10111110101010101010101010101011"; -- -1/3 - in2 <= "00000000000000000000000000000001"; -- opcode 1 - wait for clock_period; - cmd <= "0101"; -- conversion mode - in1 <= "00111111100000000000000000000000"; -- 1.0 - in2 <= "01000000000000000000000000000000"; -- opcode zero - wait for clock_period; - in1 <= "01000010001010000000000000000000"; -- 42.0 - in2 <= "00000000000000000000000000000001"; -- opcode 1 - wait for clock_period; - in1 <= "10111111100000000000000000000000"; -- -1.0 - in2 <= "00000000000000000000000000000010"; -- 2 - wait for clock_period; - in1 <= "00111111100000000000000000000000"; -- 1.0 - in2 <= "00000000000000000000000000000011"; -- 3 - wait for clock_period; - in1 <= "01000000100010101010101010101011"; -- 4.333333 - in2 <= "00000000000000000000000000000100"; -- 4 - wait for clock_period; - in1 <= "00111111100000000000000000000000"; -- 1.0 - in2 <= "00000000000000000000000000000101"; -- 5 - wait for clock_period; - in1 <= "11000000100010101010101010101011"; -- -4.333333 - in2 <= "00000000000000000000000000000110"; -- 6 to_sfixed - wait for clock_period; - in1 <= "00111111100000000000000000000000"; -- 1.0 - in2 <= "00000000000000000000000000000111"; -- 7 to_sfixed - wait for clock_period; - cmd <= "0110"; -- 16 bit to float32 mode - in1 <= "00000000000000000000000000000011"; -- 3 - in2 <= "01000000000000000000000000000000"; -- mode 0 - wait for clock_period; - in1 <= "00000000000000000000000000000100"; -- 4 - in2 <= "01000000000000000000000000000001"; -- 1 - wait for clock_period; - in1 <= "00000000000000001111111111111110"; -- -2 - in2 <= "01000000000000000000000000000010"; -- 2 to_float(signed) - wait for clock_period; - in1 <= "00000000000000000000000000000100"; -- 4 - in2 <= "01000000000000000000000000000011"; -- mode 3 - wait for clock_period; - in1 <= "10000000000000000000001000101011"; -- 4.33 ufixed - in2 <= "00000000000000000000000000000100"; -- 4 - wait for clock_period; - in1 <= "10100000000000000000000010000000"; -- 1.0 ufixed - in2 <= "00000000000000000000000000000101"; -- 5 - wait for clock_period; - in1 <= "11000000000000001111110111010101"; -- -4.333 sfixed - in2 <= "00000000000000000000000000000110"; -- 6 - wait for clock_period; - in1 <= "10100000000000000000000010000000"; -- 1.0 sfixed - in2 <= "00000000000000000000000000000111"; -- 7 - wait for clock_period; - cmd <= "0111"; -- Mod - in1 <= "00000000000000000000000000000011"; -- - in2 <= "00000000000000000000000000000011"; -- - wait for clock_period; - in1 <= "00000010001100101111000100111011"; -- 36892987 - in2 <= "00000010001100101111000100111011"; -- 36892987 - wait for clock_period; - in1 <= "11000000100010101010101010101011"; -- -4.333333 - in2 <= "01000000100000000000000000000000"; -- 4 - wait for clock_period; - cmd <= "1000"; -- rem - in1 <= "00000000000000000000000000000011"; -- - in2 <= "00000000000000000000000000000011"; -- - wait for clock_period; - in1 <= "00000010001100101111000100111011"; -- 36892987 - in2 <= "00000010001100101111000100111011"; -- 36892987 - wait for clock_period; - in1 <= "11000000100010101010101010101011"; -- -4.333333 - in2 <= "01000000100000000000000000000000"; -- 4 - wait for clock_period; - cmd <= "1001"; -- constants conversion - in2 <= "11000000000000000000000000000000"; -- command 0 - wait for clock_period; - in2 <= "11000000000000000000000000000001"; -- command 1 - wait for clock_period; - in2 <= "11000000000000000000000000000010"; -- command 2 - wait for clock_period; - in2 <= "11000000000000000000000000000011"; -- command 3 - wait for clock_period; - in2 <= "11000000000000000000000000000100"; -- command 4 - wait for clock_period; - in2 <= "11000000000000000000000000000101"; -- command 5 - wait for clock_period; - in2 <= "11000000000000000000000000000110"; -- command 6 - wait for clock_period; - in2 <= "11000000000000000000000000000111"; -- command 7 - wait for clock_period; - cmd <= "1010"; -- conversions - in1 <= to_float (1, in1); - in2 <= "11000000000000000000000000000000"; -- command 0 - wait for clock_period; - in1 <= to_float (-2, in1); - wait for clock_period; - in2 <= "11000000000000000000000000000001"; -- command 1 - wait for clock_period; - in1 <= to_float (1, in1); - wait for clock_period; - in2 <= "00010000000000000000000000000010"; -- command 2 scalb - in1 <= to_float (1, in1); - wait for clock_period; - in2 <= "11110000000000000000000000000010"; -- command 2 scalb - in1 <= to_float (1, in1); - wait for clock_period; - in2 <= "11000000000000000000000000000011"; -- command 3 logb - in1 <= to_float (1, in1); - wait for clock_period; - in2 <= "11000000000000000000000000000011"; -- command 3 logb - in1 <= to_float (0.25, in1); - wait for clock_period; - in2 <= "11000000000000000000000000000100"; -- 4 nextafter - in1 <= to_float (1, in1); - wait for clock_period; - in1 <= to_float (4, in1); - wait for clock_period; - in2 <= "11000000000000000000000000000101"; -- 5 nextafter - in1 <= to_float (1, in1); - wait for clock_period; - in1 <= to_float (-4, in1); - wait for clock_period; - in2 <= "11000000000000000000000000000110"; -- 6 nextafter - in1 <= to_float (1, in1); - wait for clock_period; - in1 <= to_float (4, in1); - wait for clock_period; - in2 <= "11000000000000000000000000000111"; -- 7 nextafter - in1 <= to_float (1, in1); - wait for clock_period; - in1 <= to_float (-4, in1); - wait for clock_period; - cmd <= "1011"; -- copy sign - in1 <= to_float (2, in1); - in2 <= to_float (2, in1); - wait for clock_period; - in1 <= to_float (-3, in1); - in2 <= to_float (3, in1); - wait for clock_period; - in1 <= to_float (4, in1); - in2 <= to_float (-4, in1); - wait for clock_period; - in1 <= to_float (-5, in1); - in2 <= to_float (-5, in1); - wait for clock_period; - cmd <= "1100"; -- compare test - in1 <= to_float (15, in1); - in2 <= to_float (15, in1); - wait for clock_period; - in1 <= to_float (15.5, in1); - in2 <= to_float (-2, in1); - wait for clock_period; - in1 <= to_float (-2, in1); - in2 <= to_float (2, in1); - wait for clock_period; - in1 <= "01111111100000000000000000000000"; -- + inf - in2 <= to_float (-2, in1); - wait for clock_period; - in1 <= "01111111100000000000000000000001"; -- NAN - in2 <= to_float (-2, in1); - wait for clock_period; - cmd <= "1101"; -- boolean test - in1 <= "01111111100000000000000000000000"; -- + inf - in2 <= "00111111100000000000000000000000"; -- command 0 , not - wait for clock_period; - in1 <= "01111111100000000000000000000000"; -- + inf - in2 <= "00111111100000000000000000000001"; -- command 1, and - wait for clock_period; - in1 <= "01111111000000000000000000000000"; -- + inf - in2 <= "00111111000000000000000000000010"; -- command 2, or - wait for clock_period; - in1 <= "01111111100000000000000000000000"; -- + inf - in2 <= "00111111100000000000000000000011"; -- command 3, nand - wait for clock_period; - in1 <= "01111111100000000000000000000000"; -- + inf - in2 <= "00111111100000000000000000000100"; -- command 4, nor - wait for clock_period; - in1 <= "01111111100000000000000000000000"; -- + inf - in2 <= "00111111100000000000000000000101"; -- command 5, xor - wait for clock_period; - in1 <= "01111111100000000000000000000000"; -- + inf - in2 <= "00111111100000000000000000000110"; -- command 6, xnor - wait for clock_period; - in1 <= "01111111100000000000000000000000"; -- + inf - in2 <= "00111111100000000000000000000111"; -- command 7, xor '1' - wait for clock_period; - cmd <= "1110"; -- reduce and vector test test - in1 <= "01111111100000000000000000000000"; -- + inf - in2 <= "00111111100000000000000000000000"; -- command 0, - wait for clock_period; - in1 <= "11111111111111111111111111111111"; -- all 1 - wait for clock_period; - in1 <= "10000000000000000000000000000000"; -- -0 - wait for clock_period; - in1 <= "00000000000000000000000000000000"; -- 0 - wait for clock_period; - in1 <= "01111111100000000000000000000000"; -- + inf - in2 <= "00111111100000000000000000000001"; -- command 1, and '0' - wait for clock_period; - in2 <= "10111111100000000000000000000001"; -- command 1, and '1' - wait for clock_period; - in2 <= "00111111100000000000000000000010"; -- command 2, or '0' - wait for clock_period; - in2 <= "10111111100000000000000000000010"; -- command 2, or '1' - wait for clock_period; - in2 <= "00111111100000000000000000000011"; -- command 3, nand '0' - wait for clock_period; - in2 <= "10111111100000000000000000000011"; -- command 3, nand '1' - wait for clock_period; - in2 <= "00111111100000000000000000000100"; -- command 4, nor '0' - wait for clock_period; - in2 <= "10111111100000000000000000000100"; -- command 4, nor '1' - wait for clock_period; - in2 <= "00111111100000000000000000000101"; -- command 5, xor '0' - wait for clock_period; - in2 <= "10111111100000000000000000000101"; -- command 5, xor '1' - wait for clock_period; - in2 <= "00111111100000000000000000000110"; -- command 6, xnor '0' - wait for clock_period; - in2 <= "10111111100000000000000000000110"; -- command 6, xnor '1' - wait for clock_period; - in2 <= "00111111100000000000000000000111"; -- command 7, and '0' - wait for clock_period; - in2 <= "10111111100000000000000000000111"; -- command 7, and '1' - wait for clock_period; - cmd <= "1111"; -- add and mult by constant - in2 <= "10111111100000000000000000000000"; -- command 0, + 1 - in1 <= to_float (2, in1); - wait for clock_period; - in2 <= "10111111100000000000000000000001"; -- command 1, 1 + - wait for clock_period; - in2 <= "10111111100000000000000000000010"; -- command 2, + 1.0 - wait for clock_period; - in2 <= "10111111100000000000000000000011"; -- command 3, 1.0 + - wait for clock_period; - in2 <= "10111111100000000000000000000100"; -- command 4, * 1 - wait for clock_period; - in2 <= "10111111100000000000000000000101"; -- command 5, 1 * - wait for clock_period; - in2 <= "10111111100000000000000000000110"; -- command 6, * 1.0 - wait for clock_period; - in2 <= "10111111100000000000000000000111"; -- command 7, 1.0 * - wait for clock_period; - - - wait for clock_period; - cmd <= "0000"; -- add mode - in1 <= (others => '0'); - in2 <= (others => '0'); - wait for clock_period; - wait for clock_period; - wait for clock_period; - wait for clock_period; - wait for clock_period; - wait for clock_period; - wait for clock_period; - wait for clock_period; - wait; - end process tester; - - -- purpose: check the output of the tester - -- type : combinational - -- inputs : - -- outputs: - checktest : process is - variable out16, out16t : fp16; -- 16 bit fp variables - variable out1t, out2t : float32; -- 32 bit float - variable s16, s16t : SIGNED(7 downto 0); -- 7 bit SIGNED - variable latency : INTEGER := 0; - begin -- process checktest - wait for clock_period/2.0; - floop3: for i in 1 to 100 loop - wait for clock_period; - end loop floop3; - latency := 0; - out2t := "01000000100010101100000000000000"; - wl1: while out1 /= out2t loop - wait for clock_period; - latency := latency + 1; - assert latency /= 100 report "After 100 loops, pattern never found" - severity failure; - end loop wl1; - report "Latency was " & INTEGER'image(latency) severity note; - floop4: for i in 1 to 100 loop - wait for clock_period; - end loop floop4; - report_error ("42 * 6.5 error", - out1, - to_float (273, out1)); - wait for clock_period; - report_error ("6.5 * 42 error", - out1, - to_float (273, out1'high, -out1'low)); - wait for clock_period; - report_error ("Multiply 42.25 miscompare", - out1, - "01000010001010010000000000000000"); -- 42.25 - wait for clock_period; - report_error ("Multiply 84 miscompare", - out1, - "01000010101010000000000000000000"); -- 84 - wait for clock_period; - report_error ("Multiply 2/3 miscompare", - out1, - "00111111001010101010101010101011"); -- 2/3 - wait for clock_period; - report_error ("Multiply -273 miscompare", - out1, - "11000011100010001000000000000000"); -- -273 - wait for clock_period; - report_error ("mult 2**-148 test miscompare", - out1, - reverse("01000000000000000000000000000001")); -- -2*-148 - wait for clock_period; - report_error ("Multiply 2**-129 miscompare", - out1, - reverse("00000000000000000000100000000000")); -- 2**-129 - wait for clock_period; - report_error ("6.5 * 42 error", - out1, - to_float (273, out1)); - wait for clock_period; - report_error ("Subtract 30303033 - 30303030 miscompare", - out1, - "01000000000000000000000000000000"); -- 2 (not 3, rounding) - wait for clock_period; - report_error ("Subtract 6.5 - 4 miscompare", - out1, - "01000000001000000000000000000000"); -- 2.5 - wait for clock_period; - report_error ("Subtract 4 - 6.5 miscompare", - out1, - "11000000001000000000000000000000"); -- -2.5 - wait for clock_period; - report_error ("Subtract 4.333 - 1/3 miscompare", - out1, - "01000000100000000000000000000000"); -- 4 - wait for clock_period; - report_error ("Add 2.333 miscompare", - out1, - "01000000000101010101010101010101"); -- 2.333333 - wait for clock_period; - report_error ("Add 2.333 rev miscompare", - out1, - "01000000000101010101010101010101"); -- 2.333333 - wait for clock_period; - report_error ("Add 4 + miscompare", - out1, - "01000000100000000000000000000001"); -- 4 - wait for clock_period; - report_error ("div 1/3 test miscompare", - out1, - "00111110101010101010101010101011"); -- 1/3 - wait for clock_period; - report_error ("div 369297/2**-126 test miscompare", - out1, - "01111111100000000000000000000000"); - wait for clock_period; - report_error ("-1/6 test miscompare", - out1, "10111110001010101010101010101011"); -- -1/6 - wait for clock_period; - -- resize function - out16 := to_float (to_slv (out1(-8 downto -23)), 6, 9); - out16t := to_float (1, out16t); - report_error16 ("1.0 fp16 converserion", - out16, out16t); - wait for clock_period; - out16 := to_float (to_slv (out1(-8 downto -23)), 6, 9); - out16t := to_float (arg => -1.0/3.0, size_res => out16t, - round_style => round_zero); - report_error16 ("-1/3 not rounded fp16 converserion", - out16, out16t); - wait for clock_period; - out16 := to_float (to_slv (out1(-8 downto -23)), 6, 9); - out16t := to_float (-1.0/3.0, out16t); - report_error16 ("-1/3 fp16 converserion", - out16, out16t); - -- conversion test - wait for clock_period; - report_error ("1.0 to unsigned miscompare", - out1, "00000000000000000000000000000001"); - wait for clock_period; - report_error ("42 to unsigned miscompare", - out1, "00100000000000000000000000101010"); - wait for clock_period; - report_error ("-1.0 to signed miscompare", - out1, "01000000000000001111111111111111"); - wait for clock_period; - report_error ("1.0 to signed miscompare", - out1, "01100000000000000000000000000001"); - wait for clock_period; - report_error ("4.33 to ufixed miscompare", - out1, "10000000000000000000001000101011"); - wait for clock_period; - report_error ("1.0 to ufixed miscompare", - out1, "10100000000000000000000010000000"); - wait for clock_period; - report_error ("4.333 to sfixed miscompare", - out1, "11000000000000001111110111010101"); - wait for clock_period; - report_error ("1.0 to sfixed miscompare", - out1, "11100000000000000000000010000000"); - wait for clock_period; - report_error ("unsigned 3 to float miscompare", - out1, to_float(3, out1)); - wait for clock_period; - report_error ("unsigned 4 to float miscompare", - out1, to_float(4, out1)); - wait for clock_period; - report_error ("signed -2 to float miscompare", - out1, to_float(-2, out1)); - wait for clock_period; - report_error ("signed 4 to float miscompare", - out1, to_float(4, out1)); - wait for clock_period; - report_error ("ufixed 4.333 to float miscompare", - out1, "01000000100010101100000000000000"); -- 4.333333 - wait for clock_period; - report_error ("ufixed 1.0 to float miscompare", - out1, "00111111100000000000000000000000"); -- 1.0 - wait for clock_period; - report_error ("sfixed -4.333 to float miscompare", - out1, "11000000100010101100000000000000"); -- -4.333333 - wait for clock_period; - report_error ("sfixed 1.0 to float miscompare", - out1, "00111111100000000000000000000000"); -- 1.0 - wait for clock_period; - report_error ("denormal mod denormal miscompare", - out1, zero0); - wait for clock_period; - report_error ("large mod large miscompare", - out1, zero0); - wait for clock_period; - report_error ("-4.333 mod 4 miscompare", - out1, - from_string ("01000000011010101010101010101010", out1)); - wait for clock_period; - report_error ("denormal rem denormal miscompare", - out1, zero0); - wait for clock_period; - report_error ("large rem large miscompare", - out1, zero0); - wait for clock_period; - out1t := "10111110101010101010101010110000"; - report_error ("-4.333 rem 4 miscompare", - out1, out1t); - wait for clock_period; - report_error ("to_float(0) miscompare", - out1, zero0); - wait for clock_period; - report_error ("to_float(0.0) miscompare", - out1, zero0); - wait for clock_period; - report_error ("to_float(8) miscompare", - out1, to_float(8.0, out1)); - wait for clock_period; - report_error ("to_float(8.0) miscompare", - out1, to_float(8, out1)); - wait for clock_period; - report_error ("to_float(-8) miscompare", - out1, to_float(-8.0, out1)); - wait for clock_period; - report_error ("to_float(-8.0) miscompare", - out1, to_float(-8, out1)); - wait for clock_period; - report_error ("to_float(27000) miscompare", - out1, to_float(27000.0, out1)); - wait for clock_period; - report_error ("to_float(PI) miscompare", - out1, to_float(3.141592653589, out1)); - -- Conversion test - wait for clock_period; - report_error ("-1 miscompare", - out1, to_float(-1, out1)); - wait for clock_period; - report_error ("-(-2) miscompare", - out1, to_float(2, out1)); - wait for clock_period; - report_error ("abs(-2) miscompare", - out1, to_float(2, out1)); - wait for clock_period; - report_error ("abs(1) miscompare", - out1, to_float(1, out1)); - wait for clock_period; - report_error ("scalb (1, 1) miscompare", - out1, to_float(2, out1)); - wait for clock_period; - report_error ("scalb (1, -1) miscompare", - out1, to_float(0.5, out1)); - wait for clock_period; - s16 := SIGNED (to_slv (out1(-16 downto -23))); - assert (s16 = 0) report "logb (1) returned " - & to_string(to_sfixed(s16)) severity error; - wait for clock_period; - s16 := SIGNED (to_slv (out1(-16 downto -23))); - assert (s16 = -2) report "logb (0.25) returned " - & to_string(to_sfixed(s16)) severity error; - wait for clock_period; - out1t := "00111111100000000000000000000001"; - report_error ("nextafter (1, 1.5)", out1, out1t); - wait for clock_period; - out1t := "01000000011111111111111111111111"; - report_error ("nextafter (4, 1.5)", out1, out1t); - wait for clock_period; - out1t := "00111111011111111111111111111111"; - report_error ("nextafter (1, -1.5)", out1, out1t); - wait for clock_period; - out1t := "11000000011111111111111111111111"; - report_error ("nextafter (-4, -1.5)", out1, out1t); - wait for clock_period; - out1t := "00111111100000000000000000000001"; - report_error ("nextafter (1, inf)", out1, out1t); - wait for clock_period; - out1t := "01000000100000000000000000000001"; - report_error ("nextafter (4, inf)", out1, out1t); - wait for clock_period; - out1t := "00111111011111111111111111111111"; - report_error ("nextafter (1, neginf)", out1, out1t); - wait for clock_period; - out1t := "11000000100000000000000000000001"; - report_error ("nextafter (-4, neginf)", out1, out1t); - wait for clock_period; - report_error ("Copysign (2,2)", out1, to_float(2, out1)); - wait for clock_period; - report_error ("Copysign (-3,3)", out1, to_float(3, out1)); - wait for clock_period; - report_error ("Copysign (4,-4)", out1, to_float(-4, out1)); - wait for clock_period; - report_error ("Copysign (-5,-5)", out1, to_float(-5, out1)); - wait for clock_period; - out1t := "10001110000000000000000000000000"; - report_error ("compare test 15, 15", out1, out1t); - wait for clock_period; - out1t := "01101001000000000000000000000000"; - report_error ("compare test 15.5, -2", out1, out1t); - wait for clock_period; - out1t := "01010100000000000000000000000000"; - report_error ("compare test -2, 2", out1, out1t); - wait for clock_period; - out1t := "01101000010000000000000000000000"; - report_error ("compare test inf, -2", out1, out1t); - wait for clock_period; - out1t := "01000000101000000000000000000000"; - report_error ("compare test NAN, -2", out1, out1t); - wait for clock_period; - out1t := "10000000011111111111111111111111"; -- not + inf - report_error ("not +inf", out1, out1t); - wait for clock_period; - out1t := "00111111100000000000000000000000"; -- and - report_error ("and +inf", out1, out1t); - wait for clock_period; - out1t := "01111111000000000000000000000010"; -- or - report_error ("or +inf", out1, out1t); - wait for clock_period; - out1t := "11000000011111111111111111111111"; -- nand - report_error ("nand +inf", out1, out1t); - wait for clock_period; - out1t := "10000000011111111111111111111011"; -- nor - report_error ("nor +inf", out1, out1t); - wait for clock_period; - out1t := "01000000000000000000000000000101"; -- xor - report_error ("xor +inf", out1, out1t); - wait for clock_period; - out1t := "10111111111111111111111111111001"; -- xnor - report_error ("xnor +inf", out1, out1t); - wait for clock_period; - out1t := "10000000011111111111111111111111"; -- xnor '1' - report_error ("+inf xor '1'", out1, out1t); - wait for clock_period; - out1t := "01100100000000000000000000000000"; -- reduce test - report_error ("_reduce test", out1, out1t); - wait for clock_period; - out1t := "10100100000000000000000000000000"; -- reduce test - report_error ("_reduce all 1 test", out1, out1t); - wait for clock_period; - out1t := "01101000000000000000000000000000"; -- reduce test - report_error ("_reduce -0 test", out1, out1t); - wait for clock_period; - out1t := "01010100000000000000000000000000"; -- reduce test - report_error ("_reduce 0 test", out1, out1t); - wait for clock_period; - out1t := "00000000000000000000000000000000"; -- 0 - report_error ("and 0 test", out1, out1t); - wait for clock_period; - out1t := "01111111100000000000000000000000"; -- + inf - report_error ("and 1 test", out1, out1t); - wait for clock_period; - out1t := "01111111100000000000000000000000"; -- + inf - report_error ("or 0 test", out1, out1t); - wait for clock_period; - out1t := "11111111111111111111111111111111"; -- all 1 - assert (to_slv (out1) = to_slv (out1t)) - report "or 1 test error " & to_string (out1) & " /= " - & to_string (out1t) severity error; - wait for clock_period; - out1t := "11111111111111111111111111111111"; -- all 1 - assert (to_slv (out1) = to_slv (out1t)) - report "nand 0 test error " & to_string (out1) & " /= " - & to_string (out1t) severity error; - wait for clock_period; - out1t := "10000000011111111111111111111111"; -- - denormal - report_error ("nand 1 test", out1, out1t); - wait for clock_period; - out1t := "10000000011111111111111111111111"; -- - denormal - report_error ("nor 0 test", out1, out1t); - wait for clock_period; - out1t := "00000000000000000000000000000000"; -- 0 - report_error ("nor 1 test", out1, out1t); - wait for clock_period; - out1t := "01111111100000000000000000000000"; -- + inf - report_error ("xor 0 test", out1, out1t); - wait for clock_period; - out1t := "10000000011111111111111111111111"; -- - denormal - report_error ("xor 1 test", out1, out1t); - wait for clock_period; - out1t := "10000000011111111111111111111111"; -- - denormal - report_error ("xnor 0 test", out1, out1t); - wait for clock_period; - out1t := "01111111100000000000000000000000"; -- + inf - report_error ("xnor 1 test", out1, out1t); - wait for clock_period; - out1t := "00000000000000000000000000000000"; -- 0 - report_error ("and 0 test", out1, out1t); - wait for clock_period; - out1t := "01111111100000000000000000000000"; -- + inf - report_error ("and 1 test", out1, out1t); - wait for clock_period; - out1t := to_float(3, out1t); - report_error ("2 + 1 test", out1, out1t); - wait for clock_period; - report_error ("1 + 2 test", out1, out1t); - wait for clock_period; - report_error ("2 + 1.0 test", out1, out1t); - wait for clock_period; - report_error ("1.0 + 2 test", out1, out1t); - wait for clock_period; - out1t := to_float(2, out1t); - report_error ("2 * 1 test", out1, out1t); - wait for clock_period; - report_error ("1 * 2 test", out1, out1t); - wait for clock_period; - report_error ("2 * 1.0 test", out1, out1t); - wait for clock_period; - report_error ("1.0 * 2 test", out1, out1t); - - wait for clock_period; - assert (false) report "Testing complete" severity note; - stop_clock <= true; - wait; - end process checktest; -end architecture testbench; |