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Reformat multiply_tb

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Signed-off-by: Anton Blanchard <anton@linux.ibm.com>
pull/64/head
Anton Blanchard 5 years ago committed by Anton Blanchard
parent fc10935797
commit 28e6d343dc
1 changed files with 175 additions and 175 deletions
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350
multiply_tb.vhdl
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@ -12,252 +12,252 @@ entity multiply_tb is
end multiply_tb;

architecture behave of multiply_tb is
signal clk : std_ulogic;
constant clk_period : time := 10 ns;
signal clk : std_ulogic;
constant clk_period : time := 10 ns;

constant pipeline_depth: integer := 4;
constant pipeline_depth : integer := 4;

signal m1 : Decode2ToMultiplyType;
signal m2 : MultiplyToWritebackType;
signal m1 : Decode2ToMultiplyType;
signal m2 : MultiplyToWritebackType;
begin
multiply_0: entity work.multiply
generic map (PIPELINE_DEPTH => pipeline_depth)
port map (clk => clk, m_in => m1, m_out => m2);
multiply_0: entity work.multiply
generic map (PIPELINE_DEPTH => pipeline_depth)
port map (clk => clk, m_in => m1, m_out => m2);

clk_process: process
begin
clk <= '0';
wait for clk_period/2;
clk <= '1';
wait for clk_period/2;
end process;
clk_process: process
begin
clk <= '0';
wait for clk_period/2;
clk <= '1';
wait for clk_period/2;
end process;

stim_process: process
variable ra, rb, rt, behave_rt: std_ulogic_vector(63 downto 0);
variable si: std_ulogic_vector(15 downto 0);
begin
wait for clk_period;
stim_process: process
variable ra, rb, rt, behave_rt: std_ulogic_vector(63 downto 0);
variable si: std_ulogic_vector(15 downto 0);
begin
wait for clk_period;

m1.valid <= '1';
m1.insn_type <= OP_MUL_L64;
m1.write_reg <= "10001";
m1.data1 <= '0' & x"0000000000001000";
m1.data2 <= '0' & x"0000000000001111";
m1.rc <= '0';
m1.valid <= '1';
m1.insn_type <= OP_MUL_L64;
m1.write_reg <= "10001";
m1.data1 <= '0' & x"0000000000001000";
m1.data2 <= '0' & x"0000000000001111";
m1.rc <= '0';

wait for clk_period;
assert m2.valid = '0';
wait for clk_period;
assert m2.valid = '0';

m1.valid <= '0';
m1.valid <= '0';

wait for clk_period;
assert m2.valid = '0';
wait for clk_period;
assert m2.valid = '0';

wait for clk_period;
assert m2.valid = '0';
wait for clk_period;
assert m2.valid = '0';

wait for clk_period;
assert m2.valid = '1';
assert m2.write_reg_enable = '1';
assert m2.write_reg_nr = "10001";
assert m2.write_reg_data = x"0000000001111000";
assert m2.write_cr_enable = '0';
wait for clk_period;
assert m2.valid = '1';
assert m2.write_reg_enable = '1';
assert m2.write_reg_nr = "10001";
assert m2.write_reg_data = x"0000000001111000";
assert m2.write_cr_enable = '0';

wait for clk_period;
assert m2.valid = '0';
wait for clk_period;
assert m2.valid = '0';

m1.valid <= '1';
m1.rc <= '1';
m1.valid <= '1';
m1.rc <= '1';

wait for clk_period;
assert m2.valid = '0';
wait for clk_period;
assert m2.valid = '0';

m1.valid <= '0';
m1.valid <= '0';

wait for clk_period * (pipeline_depth-1);
assert m2.valid = '1';
assert m2.write_reg_enable = '1';
assert m2.write_reg_nr = "10001";
assert m2.write_reg_data = x"0000000001111000";
assert m2.write_cr_enable = '1';
assert m2.write_cr_data = x"40000000";
wait for clk_period * (pipeline_depth-1);
assert m2.valid = '1';
assert m2.write_reg_enable = '1';
assert m2.write_reg_nr = "10001";
assert m2.write_reg_data = x"0000000001111000";
assert m2.write_cr_enable = '1';
assert m2.write_cr_data = x"40000000";

-- test mulld
mulld_loop : for i in 0 to 1000 loop
ra := pseudorand(ra'length);
rb := pseudorand(rb'length);
-- test mulld
mulld_loop : for i in 0 to 1000 loop
ra := pseudorand(ra'length);
rb := pseudorand(rb'length);

behave_rt := ppc_mulld(ra, rb);
behave_rt := ppc_mulld(ra, rb);

m1.data1 <= '0' & ra;
m1.data2 <= '0' & rb;
m1.valid <= '1';
m1.insn_type <= OP_MUL_L64;
m1.data1 <= '0' & ra;
m1.data2 <= '0' & rb;
m1.valid <= '1';
m1.insn_type <= OP_MUL_L64;

wait for clk_period;
wait for clk_period;

m1.valid <= '0';
m1.valid <= '0';

wait for clk_period * (pipeline_depth-1);
wait for clk_period * (pipeline_depth-1);

assert m2.valid = '1';
assert m2.valid = '1';

assert to_hstring(behave_rt) = to_hstring(m2.write_reg_data)
report "bad mulld expected " & to_hstring(behave_rt) & " got " & to_hstring(m2.write_reg_data);
end loop;
assert to_hstring(behave_rt) = to_hstring(m2.write_reg_data)
report "bad mulld expected " & to_hstring(behave_rt) & " got " & to_hstring(m2.write_reg_data);
end loop;

-- test mulhdu
mulhdu_loop : for i in 0 to 1000 loop
ra := pseudorand(ra'length);
rb := pseudorand(rb'length);
-- test mulhdu
mulhdu_loop : for i in 0 to 1000 loop
ra := pseudorand(ra'length);
rb := pseudorand(rb'length);

behave_rt := ppc_mulhdu(ra, rb);
behave_rt := ppc_mulhdu(ra, rb);

m1.data1 <= '0' & ra;
m1.data2 <= '0' & rb;
m1.valid <= '1';
m1.insn_type <= OP_MUL_H64;
m1.data1 <= '0' & ra;
m1.data2 <= '0' & rb;
m1.valid <= '1';
m1.insn_type <= OP_MUL_H64;

wait for clk_period;
wait for clk_period;

m1.valid <= '0';
m1.valid <= '0';

wait for clk_period * (pipeline_depth-1);
wait for clk_period * (pipeline_depth-1);

assert m2.valid = '1';
assert m2.valid = '1';

assert to_hstring(behave_rt) = to_hstring(m2.write_reg_data)
report "bad mulhdu expected " & to_hstring(behave_rt) & " got " & to_hstring(m2.write_reg_data);
end loop;
assert to_hstring(behave_rt) = to_hstring(m2.write_reg_data)
report "bad mulhdu expected " & to_hstring(behave_rt) & " got " & to_hstring(m2.write_reg_data);
end loop;

-- test mulhd
mulhd_loop : for i in 0 to 1000 loop
ra := pseudorand(ra'length);
rb := pseudorand(rb'length);
-- test mulhd
mulhd_loop : for i in 0 to 1000 loop
ra := pseudorand(ra'length);
rb := pseudorand(rb'length);

behave_rt := ppc_mulhd(ra, rb);
behave_rt := ppc_mulhd(ra, rb);

m1.data1 <= ra(63) & ra;
m1.data2 <= rb(63) & rb;
m1.valid <= '1';
m1.insn_type <= OP_MUL_H64;
m1.data1 <= ra(63) & ra;
m1.data2 <= rb(63) & rb;
m1.valid <= '1';
m1.insn_type <= OP_MUL_H64;

wait for clk_period;
wait for clk_period;

m1.valid <= '0';
m1.valid <= '0';

wait for clk_period * (pipeline_depth-1);
wait for clk_period * (pipeline_depth-1);

assert m2.valid = '1';
assert m2.valid = '1';

assert to_hstring(behave_rt) = to_hstring(m2.write_reg_data)
report "bad mulhd expected " & to_hstring(behave_rt) & " got " & to_hstring(m2.write_reg_data);
end loop;
assert to_hstring(behave_rt) = to_hstring(m2.write_reg_data)
report "bad mulhd expected " & to_hstring(behave_rt) & " got " & to_hstring(m2.write_reg_data);
end loop;

-- test mullw
mullw_loop : for i in 0 to 1000 loop
ra := pseudorand(ra'length);
rb := pseudorand(rb'length);
-- test mullw
mullw_loop : for i in 0 to 1000 loop
ra := pseudorand(ra'length);
rb := pseudorand(rb'length);

behave_rt := ppc_mullw(ra, rb);
behave_rt := ppc_mullw(ra, rb);

m1.data1 <= (others => ra(31));
m1.data1(31 downto 0) <= ra(31 downto 0);
m1.data2 <= (others => rb(31));
m1.data2(31 downto 0) <= rb(31 downto 0);
m1.valid <= '1';
m1.insn_type <= OP_MUL_L64;
m1.data1 <= (others => ra(31));
m1.data1(31 downto 0) <= ra(31 downto 0);
m1.data2 <= (others => rb(31));
m1.data2(31 downto 0) <= rb(31 downto 0);
m1.valid <= '1';
m1.insn_type <= OP_MUL_L64;

wait for clk_period;
wait for clk_period;

m1.valid <= '0';
m1.valid <= '0';

wait for clk_period * (pipeline_depth-1);
wait for clk_period * (pipeline_depth-1);

assert m2.valid = '1';
assert m2.valid = '1';

assert to_hstring(behave_rt) = to_hstring(m2.write_reg_data)
report "bad mullw expected " & to_hstring(behave_rt) & " got " & to_hstring(m2.write_reg_data);
end loop;
assert to_hstring(behave_rt) = to_hstring(m2.write_reg_data)
report "bad mullw expected " & to_hstring(behave_rt) & " got " & to_hstring(m2.write_reg_data);
end loop;

-- test mulhw
mulhw_loop : for i in 0 to 1000 loop
ra := pseudorand(ra'length);
rb := pseudorand(rb'length);
-- test mulhw
mulhw_loop : for i in 0 to 1000 loop
ra := pseudorand(ra'length);
rb := pseudorand(rb'length);

behave_rt := ppc_mulhw(ra, rb);
behave_rt := ppc_mulhw(ra, rb);

m1.data1 <= (others => ra(31));
m1.data1(31 downto 0) <= ra(31 downto 0);
m1.data2 <= (others => rb(31));
m1.data2(31 downto 0) <= rb(31 downto 0);
m1.valid <= '1';
m1.insn_type <= OP_MUL_H32;
m1.data1 <= (others => ra(31));
m1.data1(31 downto 0) <= ra(31 downto 0);
m1.data2 <= (others => rb(31));
m1.data2(31 downto 0) <= rb(31 downto 0);
m1.valid <= '1';
m1.insn_type <= OP_MUL_H32;

wait for clk_period;
wait for clk_period;

m1.valid <= '0';
m1.valid <= '0';

wait for clk_period * (pipeline_depth-1);
wait for clk_period * (pipeline_depth-1);

assert m2.valid = '1';
assert m2.valid = '1';

assert to_hstring(behave_rt) = to_hstring(m2.write_reg_data)
report "bad mulhw expected " & to_hstring(behave_rt) & " got " & to_hstring(m2.write_reg_data);
end loop;
assert to_hstring(behave_rt) = to_hstring(m2.write_reg_data)
report "bad mulhw expected " & to_hstring(behave_rt) & " got " & to_hstring(m2.write_reg_data);
end loop;

-- test mulhwu
mulhwu_loop : for i in 0 to 1000 loop
ra := pseudorand(ra'length);
rb := pseudorand(rb'length);
-- test mulhwu
mulhwu_loop : for i in 0 to 1000 loop
ra := pseudorand(ra'length);
rb := pseudorand(rb'length);

behave_rt := ppc_mulhwu(ra, rb);
behave_rt := ppc_mulhwu(ra, rb);

m1.data1 <= (others => '0');
m1.data1(31 downto 0) <= ra(31 downto 0);
m1.data2 <= (others => '0');
m1.data2(31 downto 0) <= rb(31 downto 0);
m1.valid <= '1';
m1.insn_type <= OP_MUL_H32;
m1.data1 <= (others => '0');
m1.data1(31 downto 0) <= ra(31 downto 0);
m1.data2 <= (others => '0');
m1.data2(31 downto 0) <= rb(31 downto 0);
m1.valid <= '1';
m1.insn_type <= OP_MUL_H32;

wait for clk_period;
wait for clk_period;

m1.valid <= '0';
m1.valid <= '0';

wait for clk_period * (pipeline_depth-1);
wait for clk_period * (pipeline_depth-1);

assert m2.valid = '1';
assert m2.valid = '1';

assert to_hstring(behave_rt) = to_hstring(m2.write_reg_data)
report "bad mulhwu expected " & to_hstring(behave_rt) & " got " & to_hstring(m2.write_reg_data);
end loop;
assert to_hstring(behave_rt) = to_hstring(m2.write_reg_data)
report "bad mulhwu expected " & to_hstring(behave_rt) & " got " & to_hstring(m2.write_reg_data);
end loop;

-- test mulli
mulli_loop : for i in 0 to 1000 loop
ra := pseudorand(ra'length);
si := pseudorand(si'length);
-- test mulli
mulli_loop : for i in 0 to 1000 loop
ra := pseudorand(ra'length);
si := pseudorand(si'length);

behave_rt := ppc_mulli(ra, si);
behave_rt := ppc_mulli(ra, si);

m1.data1 <= ra(63) & ra;
m1.data2 <= (others => si(15));
m1.data2(15 downto 0) <= si;
m1.valid <= '1';
m1.insn_type <= OP_MUL_L64;
m1.data1 <= ra(63) & ra;
m1.data2 <= (others => si(15));
m1.data2(15 downto 0) <= si;
m1.valid <= '1';
m1.insn_type <= OP_MUL_L64;

wait for clk_period;
wait for clk_period;

m1.valid <= '0';
m1.valid <= '0';

wait for clk_period * (pipeline_depth-1);
wait for clk_period * (pipeline_depth-1);

assert m2.valid = '1';
assert m2.valid = '1';

assert to_hstring(behave_rt) = to_hstring(m2.write_reg_data)
report "bad mulli expected " & to_hstring(behave_rt) & " got " & to_hstring(m2.write_reg_data);
end loop;
assert to_hstring(behave_rt) = to_hstring(m2.write_reg_data)
report "bad mulli expected " & to_hstring(behave_rt) & " got " & to_hstring(m2.write_reg_data);
end loop;

assert false report "end of test" severity failure;
wait;
end process;
assert false report "end of test" severity failure;
wait;
end process;
end behave;

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