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Merge pull request #296 from LarsAsplund/logging-checking

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Replaced VHDL assert and report with VUnit checking and logging
pull/303/head
Michael Neuling 3 years ago committed by GitHub
parent 9e3c756234 478b787c10
commit f9654428ff
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GPG Key ID: 4AEE18F83AFDEB23
6 changed files with 131 additions and 175 deletions
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35
countzero_tb.vhdl
Unescape Escape View File

@ -19,8 +19,7 @@ architecture behave of countzero_tb is
constant clk_period: time := 10 ns; constant clk_period: time := 10 ns;
signal rs: std_ulogic_vector(63 downto 0); signal rs: std_ulogic_vector(63 downto 0);
signal is_32bit, count_right: std_ulogic := '0'; signal is_32bit, count_right: std_ulogic := '0';
signal result: std_ulogic_vector(63 downto 0); signal res: std_ulogic_vector(63 downto 0);
signal randno: std_ulogic_vector(63 downto 0);
signal clk: std_ulogic; signal clk: std_ulogic;


begin begin
@ -28,7 +27,7 @@ begin
port map ( port map (
clk => clk, clk => clk,
rs => rs, rs => rs,
result => result, result => res,
count_right => count_right, count_right => count_right,
is_32bit => is_32bit is_32bit => is_32bit
); );
@ -55,21 +54,17 @@ begin
is_32bit <= '0'; is_32bit <= '0';
count_right <= '0'; count_right <= '0';
wait for clk_period; wait for clk_period;
assert result = x"0000000000000040" check_equal(res, 16#40#, result("for cntlzd"));
report "bad cntlzd 0 = " & to_hstring(result);
count_right <= '1'; count_right <= '1';
wait for clk_period; wait for clk_period;
assert result = x"0000000000000040" check_equal(res, 16#40#, result("for cnttzd"));
report "bad cnttzd 0 = " & to_hstring(result);
is_32bit <= '1'; is_32bit <= '1';
count_right <= '0'; count_right <= '0';
wait for clk_period; wait for clk_period;
assert result = x"0000000000000020" check_equal(res, 16#20#, result("for cntlzw"));
report "bad cntlzw 0 = " & to_hstring(result);
count_right <= '1'; count_right <= '1';
wait for clk_period; wait for clk_period;
assert result = x"0000000000000020" check_equal(res, 16#20#, result("for cnttzw"));
report "bad cnttzw 0 = " & to_hstring(result);


elsif run("Test cntlzd/w") then elsif run("Test cntlzd/w") then
count_right <= '0'; count_right <= '0';
@ -80,17 +75,14 @@ begin
rs <= r; rs <= r;
is_32bit <= '0'; is_32bit <= '0';
wait for clk_period; wait for clk_period;
assert to_integer(unsigned(result)) = i check_equal(res, i, result("for cntlzd " & to_hstring(rs)));
report "bad cntlzd " & to_hstring(rs) & " -> " & to_hstring(result);
rs <= r(31 downto 0) & r(63 downto 32); rs <= r(31 downto 0) & r(63 downto 32);
is_32bit <= '1'; is_32bit <= '1';
wait for clk_period; wait for clk_period;
if i < 32 then if i < 32 then
assert to_integer(unsigned(result)) = i check_equal(res, i, result("for cntlzw " & to_hstring(rs)));
report "bad cntlzw " & to_hstring(rs) & " -> " & to_hstring(result);
else else
assert to_integer(unsigned(result)) = 32 check_equal(res, 32, result("for cntlzw " & to_hstring(rs)));
report "bad cntlzw " & to_hstring(rs) & " -> " & to_hstring(result);
end if; end if;
r := '0' & r(63 downto 1); r := '0' & r(63 downto 1);
end loop; end loop;
@ -105,16 +97,13 @@ begin
rs <= r; rs <= r;
is_32bit <= '0'; is_32bit <= '0';
wait for clk_period; wait for clk_period;
assert to_integer(unsigned(result)) = i check_equal(res, i, result("for cnttzd " & to_hstring(rs)));
report "bad cnttzd " & to_hstring(rs) & " -> " & to_hstring(result);
is_32bit <= '1'; is_32bit <= '1';
wait for clk_period; wait for clk_period;
if i < 32 then if i < 32 then
assert to_integer(unsigned(result)) = i check_equal(res, i, result("for cnttzw " & to_hstring(rs)));
report "bad cnttzw " & to_hstring(rs) & " -> " & to_hstring(result);
else else
assert to_integer(unsigned(result)) = 32 check_equal(res, 32, result("for cnttzw " & to_hstring(rs)));
report "bad cnttzw " & to_hstring(rs) & " -> " & to_hstring(result);
end if; end if;
r := r(62 downto 0) & '0'; r := r(62 downto 0) & '0';
end loop; end loop;

76
divider_tb.vhdl
Unescape Escape View File

@ -67,7 +67,7 @@ begin
d1.divisor <= x"0000000000001111"; d1.divisor <= x"0000000000001111";


wait for clk_period; wait for clk_period;
assert d2.valid = '0'; check_false(?? d2.valid, result("for valid"));


d1.valid <= '0'; d1.valid <= '0';


@ -78,16 +78,16 @@ begin
end if; end if;
end loop; end loop;


assert d2.valid = '1'; check_true(?? d2.valid, result("for valid"));
assert d2.write_reg_data = x"000000000000f001" report "result " & to_hstring(d2.write_reg_data); check_equal(d2.write_reg_data, 16#f001#);


wait for clk_period; wait for clk_period;
assert d2.valid = '0' report "valid"; check_false(?? d2.valid, result("for valid"));


d1.valid <= '1'; d1.valid <= '1';


wait for clk_period; wait for clk_period;
assert d2.valid = '0' report "valid"; check_false(?? d2.valid, result("for valid"));


d1.valid <= '0'; d1.valid <= '0';


@ -98,11 +98,11 @@ begin
end if; end if;
end loop; end loop;


assert d2.valid = '1'; check_true(?? d2.valid, result("for valid"));
assert d2.write_reg_data = x"000000000000f001" report "result " & to_hstring(d2.write_reg_data); check_equal(d2.write_reg_data, 16#f001#);


wait for clk_period; wait for clk_period;
assert d2.valid = '0'; check_false(?? d2.valid, result("for valid"));


elsif run("Test divd") then elsif run("Test divd") then
divd_loop : for dlength in 1 to 8 loop divd_loop : for dlength in 1 to 8 loop
@ -126,14 +126,13 @@ begin
exit; exit;
end if; end if;
end loop; end loop;
assert d2.valid = '1'; check_true(?? d2.valid, result("for valid"));


behave_rt := (others => '0'); behave_rt := (others => '0');
if rb /= x"0000000000000000" and (ra /= x"8000000000000000" or rb /= x"ffffffffffffffff") then if rb /= x"0000000000000000" and (ra /= x"8000000000000000" or rb /= x"ffffffffffffffff") then
behave_rt := ppc_divd(ra, rb); behave_rt := ppc_divd(ra, rb);
end if; end if;
assert to_hstring(behave_rt) = to_hstring(d2.write_reg_data) check_equal(d2.write_reg_data, behave_rt, result("for divd"));
report "bad divd expected " & to_hstring(behave_rt) & " got " & to_hstring(d2.write_reg_data);
end loop; end loop;
end loop; end loop;
end loop; end loop;
@ -158,14 +157,13 @@ begin
exit; exit;
end if; end if;
end loop; end loop;
assert d2.valid = '1'; check_true(?? d2.valid, result("for valid"));


behave_rt := (others => '0'); behave_rt := (others => '0');
if rb /= x"0000000000000000" then if rb /= x"0000000000000000" then
behave_rt := ppc_divdu(ra, rb); behave_rt := ppc_divdu(ra, rb);
end if; end if;
assert to_hstring(behave_rt) = to_hstring(d2.write_reg_data) check_equal(d2.write_reg_data, behave_rt, result("for divdu"));
report "bad divdu expected " & to_hstring(behave_rt) & " got " & to_hstring(d2.write_reg_data);
end loop; end loop;
end loop; end loop;
end loop; end loop;
@ -193,7 +191,7 @@ begin
exit; exit;
end if; end if;
end loop; end loop;
assert d2.valid = '1'; check_true(?? d2.valid, result("for valid"));


behave_rt := (others => '0'); behave_rt := (others => '0');
if rb /= x"0000000000000000" then if rb /= x"0000000000000000" then
@ -204,8 +202,7 @@ begin
behave_rt := q128(63 downto 0); behave_rt := q128(63 downto 0);
end if; end if;
end if; end if;
assert to_hstring(behave_rt) = to_hstring(d2.write_reg_data) check_equal(d2.write_reg_data, behave_rt, result("for divde"));
report "bad divde expected " & to_hstring(behave_rt) & " got " & to_hstring(d2.write_reg_data) & " for ra = " & to_hstring(ra) & " rb = " & to_hstring(rb);
end loop; end loop;
end loop; end loop;
end loop; end loop;
@ -231,7 +228,7 @@ begin
exit; exit;
end if; end if;
end loop; end loop;
assert d2.valid = '1'; check_true(?? d2.valid, result("for valid"));


behave_rt := (others => '0'); behave_rt := (others => '0');
if unsigned(rb) > unsigned(ra) then if unsigned(rb) > unsigned(ra) then
@ -239,8 +236,7 @@ begin
q128 := std_ulogic_vector(unsigned(d128) / unsigned(rb)); q128 := std_ulogic_vector(unsigned(d128) / unsigned(rb));
behave_rt := q128(63 downto 0); behave_rt := q128(63 downto 0);
end if; end if;
assert to_hstring(behave_rt) = to_hstring(d2.write_reg_data) check_equal(d2.write_reg_data, behave_rt, result("for divdeu"));
report "bad divdeu expected " & to_hstring(behave_rt) & " got " & to_hstring(d2.write_reg_data) & " for ra = " & to_hstring(ra) & " rb = " & to_hstring(rb);
end loop; end loop;
end loop; end loop;
end loop; end loop;
@ -268,14 +264,13 @@ begin
exit; exit;
end if; end if;
end loop; end loop;
assert d2.valid = '1'; check_true(?? d2.valid, result("for valid"));


behave_rt := (others => '0'); behave_rt := (others => '0');
if rb /= x"0000000000000000" and (ra /= x"ffffffff80000000" or rb /= x"ffffffffffffffff") then if rb /= x"0000000000000000" and (ra /= x"ffffffff80000000" or rb /= x"ffffffffffffffff") then
behave_rt := ppc_divw(ra, rb); behave_rt := ppc_divw(ra, rb);
end if; end if;
assert behave_rt = d2.write_reg_data check_equal(d2.write_reg_data, behave_rt, result("for divw"));
report "bad divw expected " & to_hstring(behave_rt) & " got " & to_hstring(d2.write_reg_data);
end loop; end loop;
end loop; end loop;
end loop; end loop;
@ -301,14 +296,13 @@ begin
exit; exit;
end if; end if;
end loop; end loop;
assert d2.valid = '1'; check_true(?? d2.valid, result("for valid"));


behave_rt := (others => '0'); behave_rt := (others => '0');
if rb /= x"0000000000000000" then if rb /= x"0000000000000000" then
behave_rt := ppc_divwu(ra, rb); behave_rt := ppc_divwu(ra, rb);
end if; end if;
assert behave_rt = d2.write_reg_data check_equal(d2.write_reg_data, behave_rt, result("for divwu"));
report "bad divwu expected " & to_hstring(behave_rt) & " got " & to_hstring(d2.write_reg_data);
end loop; end loop;
end loop; end loop;
end loop; end loop;
@ -336,7 +330,7 @@ begin
exit; exit;
end if; end if;
end loop; end loop;
assert d2.valid = '1'; check_true(?? d2.valid, result("for valid"));


behave_rt := (others => '0'); behave_rt := (others => '0');
if rb /= x"0000000000000000" then if rb /= x"0000000000000000" then
@ -345,8 +339,7 @@ begin
q64(63 downto 31) = x"ffffffff" & '1' then q64(63 downto 31) = x"ffffffff" & '1' then
behave_rt := x"00000000" & q64(31 downto 0); behave_rt := x"00000000" & q64(31 downto 0);
end if; end if;
assert behave_rt = d2.write_reg_data check_equal(d2.write_reg_data, behave_rt, result("for divwe"));
report "bad divwe expected " & to_hstring(behave_rt) & " got " & to_hstring(d2.write_reg_data) & " for ra = " & to_hstring(ra) & " rb = " & to_hstring(rb);
end if; end if;
end loop; end loop;
end loop; end loop;
@ -373,14 +366,13 @@ begin
exit; exit;
end if; end if;
end loop; end loop;
assert d2.valid = '1'; check_true(?? d2.valid, result("for valid"));


behave_rt := (others => '0'); behave_rt := (others => '0');
if unsigned(rb(31 downto 0)) > unsigned(ra(63 downto 32)) then if unsigned(rb(31 downto 0)) > unsigned(ra(63 downto 32)) then
behave_rt := std_ulogic_vector(unsigned(ra) / unsigned(rb)); behave_rt := std_ulogic_vector(unsigned(ra) / unsigned(rb));
end if; end if;
assert behave_rt = d2.write_reg_data check_equal(d2.write_reg_data, behave_rt, result("for divweu"));
report "bad divweu expected " & to_hstring(behave_rt) & " got " & to_hstring(d2.write_reg_data) & " for ra = " & to_hstring(ra) & " rb = " & to_hstring(rb);
end loop; end loop;
end loop; end loop;
end loop; end loop;
@ -408,14 +400,13 @@ begin
exit; exit;
end if; end if;
end loop; end loop;
assert d2.valid = '1'; check_true(?? d2.valid, result("for valid"));


behave_rt := (others => '0'); behave_rt := (others => '0');
if rb /= x"0000000000000000" then if rb /= x"0000000000000000" then
behave_rt := std_ulogic_vector(signed(ra) rem signed(rb)); behave_rt := std_ulogic_vector(signed(ra) rem signed(rb));
end if; end if;
assert behave_rt = d2.write_reg_data check_equal(d2.write_reg_data, behave_rt, result("for modsd"));
report "bad modsd expected " & to_hstring(behave_rt) & " got " & to_hstring(d2.write_reg_data);
end loop; end loop;
end loop; end loop;
end loop; end loop;
@ -441,14 +432,13 @@ begin
exit; exit;
end if; end if;
end loop; end loop;
assert d2.valid = '1'; check_true(?? d2.valid, result("for valid"));


behave_rt := (others => '0'); behave_rt := (others => '0');
if rb /= x"0000000000000000" then if rb /= x"0000000000000000" then
behave_rt := std_ulogic_vector(unsigned(ra) rem unsigned(rb)); behave_rt := std_ulogic_vector(unsigned(ra) rem unsigned(rb));
end if; end if;
assert behave_rt = d2.write_reg_data check_equal(d2.write_reg_data, behave_rt, result("for modud"));
report "bad modud expected " & to_hstring(behave_rt) & " got " & to_hstring(d2.write_reg_data);
end loop; end loop;
end loop; end loop;
end loop; end loop;
@ -477,7 +467,7 @@ begin
exit; exit;
end if; end if;
end loop; end loop;
assert d2.valid = '1'; check_true(?? d2.valid, result("for valid"));


behave_rt := (others => '0'); behave_rt := (others => '0');
if rb /= x"0000000000000000" then if rb /= x"0000000000000000" then
@ -488,8 +478,7 @@ begin
behave_rt := x"ffffffff" & rem32; behave_rt := x"ffffffff" & rem32;
end if; end if;
end if; end if;
assert behave_rt = d2.write_reg_data check_equal(d2.write_reg_data, behave_rt, result("for modsw"));
report "bad modsw expected " & to_hstring(behave_rt) & " got " & to_hstring(d2.write_reg_data);
end loop; end loop;
end loop; end loop;
end loop; end loop;
@ -516,14 +505,13 @@ begin
exit; exit;
end if; end if;
end loop; end loop;
assert d2.valid = '1'; check_true(?? d2.valid, result("for valid"));


behave_rt := (others => '0'); behave_rt := (others => '0');
if rb /= x"0000000000000000" then if rb /= x"0000000000000000" then
behave_rt := x"00000000" & std_ulogic_vector(unsigned(ra(31 downto 0)) rem unsigned(rb(31 downto 0))); behave_rt := x"00000000" & std_ulogic_vector(unsigned(ra(31 downto 0)) rem unsigned(rb(31 downto 0)));
end if; end if;
assert behave_rt(31 downto 0) = d2.write_reg_data(31 downto 0) check_equal(d2.write_reg_data(31 downto 0), behave_rt(31 downto 0), result("for moduw"));
report "bad moduw expected " & to_hstring(behave_rt) & " got " & to_hstring(d2.write_reg_data);
end loop; end loop;
end loop; end loop;
end loop; end loop;

62
multiply_tb.vhdl
Unescape Escape View File

@ -67,33 +67,33 @@ begin
m1.data2 <= x"0000000000001111"; m1.data2 <= x"0000000000001111";


wait for clk_period; wait for clk_period;
assert m2.valid = '0'; check_false(?? m2.valid, result("for valid"));


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


wait for clk_period; wait for clk_period;
assert m2.valid = '0'; check_false(?? m2.valid, result("for valid"));


wait for clk_period; wait for clk_period;
assert m2.valid = '0'; check_false(?? m2.valid, result("for valid"));


wait for clk_period; wait for clk_period;
assert m2.valid = '1'; check_true(?? m2.valid, result("for valid"));
assert m2.result = x"00000000000000000000000001111000"; check_equal(m2.result, 16#1111000#);


wait for clk_period; wait for clk_period;
assert m2.valid = '0'; check_false(?? m2.valid, result("for valid"));


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


wait for clk_period; wait for clk_period;
assert m2.valid = '0'; check_false(?? m2.valid, result("for valid"));


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


wait for clk_period * (pipeline_depth-1); wait for clk_period * (pipeline_depth-1);
assert m2.valid = '1'; check_true(?? m2.valid, result("for valid"));
assert m2.result = x"00000000000000000000000001111000"; check_equal(m2.result, 16#1111000#);


elsif run("Test mulld") then elsif run("Test mulld") then
mulld_loop : for i in 0 to 1000 loop mulld_loop : for i in 0 to 1000 loop
@ -115,10 +115,8 @@ begin


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


assert m2.valid = '1'; check_true(?? m2.valid, result("for valid"));

check_equal(m2.result(63 downto 0), behave_rt, result("for mulld " & to_hstring(behave_rt)));
assert to_hstring(behave_rt) = to_hstring(m2.result(63 downto 0))
report "bad mulld expected " & to_hstring(behave_rt) & " got " & to_hstring(m2.result(63 downto 0));
end loop; end loop;


elsif run("Test mulhdu") then elsif run("Test mulhdu") then
@ -140,10 +138,8 @@ begin


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


assert m2.valid = '1'; check_true(?? m2.valid, result("for valid"));

check_equal(m2.result(127 downto 64), behave_rt, result("for mulhdu " & to_hstring(behave_rt)));
assert to_hstring(behave_rt) = to_hstring(m2.result(127 downto 64))
report "bad mulhdu expected " & to_hstring(behave_rt) & " got " & to_hstring(m2.result(127 downto 64));
end loop; end loop;


elsif run("Test mulhd") then elsif run("Test mulhd") then
@ -166,10 +162,8 @@ begin


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


assert m2.valid = '1'; check_true(?? m2.valid, result("for valid"));

check_equal(m2.result(127 downto 64), behave_rt, result("for mulhd " & to_hstring(behave_rt)));
assert to_hstring(behave_rt) = to_hstring(m2.result(127 downto 64))
report "bad mulhd expected " & to_hstring(behave_rt) & " got " & to_hstring(m2.result(127 downto 64));
end loop; end loop;


elsif run("Test mullw") then elsif run("Test mullw") then
@ -194,10 +188,8 @@ begin


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


assert m2.valid = '1'; check_true(?? m2.valid, result("for valid"));

check_equal(m2.result(63 downto 0), behave_rt, result("for mullw " & to_hstring(behave_rt)));
assert to_hstring(behave_rt) = to_hstring(m2.result(63 downto 0))
report "bad mullw expected " & to_hstring(behave_rt) & " got " & to_hstring(m2.result(63 downto 0));
end loop; end loop;


elsif run("Test mulhw") then elsif run("Test mulhw") then
@ -222,11 +214,8 @@ begin


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


assert m2.valid = '1'; check_true(?? m2.valid, result("for valid"));

check_equal(m2.result(63 downto 32) & m2.result(63 downto 32), behave_rt, result("for mulhw " & to_hstring(behave_rt)));
assert to_hstring(behave_rt) = to_hstring(m2.result(63 downto 32) & m2.result(63 downto 32))
report "bad mulhw expected " & to_hstring(behave_rt) & " got " &
to_hstring(m2.result(63 downto 32) & m2.result(63 downto 32));
end loop; end loop;


elsif run("Test mulhwu") then elsif run("Test mulhwu") then
@ -250,11 +239,8 @@ begin


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


assert m2.valid = '1'; check_true(?? m2.valid, result("for valid"));

check_equal(m2.result(63 downto 32) & m2.result(63 downto 32), behave_rt, result("for mulhwu " & to_hstring(behave_rt)));
assert to_hstring(behave_rt) = to_hstring(m2.result(63 downto 32) & m2.result(63 downto 32))
report "bad mulhwu expected " & to_hstring(behave_rt) & " got " &
to_hstring(m2.result(63 downto 32) & m2.result(63 downto 32));
end loop; end loop;


elsif run("Test mulli") then elsif run("Test mulli") then
@ -278,10 +264,8 @@ begin


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


assert m2.valid = '1'; check_true(?? m2.valid, result("for valid"));

check_equal(m2.result(63 downto 0), behave_rt, result("for mulli " & to_hstring(behave_rt)));
assert to_hstring(behave_rt) = to_hstring(m2.result(63 downto 0))
report "bad mulli expected " & to_hstring(behave_rt) & " got " & to_hstring(m2.result(63 downto 0));
end loop; end loop;
end if; end if;
end loop; end loop;

40
plru_tb.vhdl
Unescape Escape View File

@ -58,56 +58,56 @@ begin


wait for 4*clk_period; wait for 4*clk_period;


report "accessing 1:"; info("accessing 1:");
acc <= "001"; acc <= "001";
acc_en <= '1'; acc_en <= '1';
wait for clk_period; wait for clk_period;
report "lru:" & to_hstring(lru); info("lru:" & to_hstring(lru));


report "accessing 2:"; info("accessing 2:");
acc <= "010"; acc <= "010";
wait for clk_period; wait for clk_period;
report "lru:" & to_hstring(lru); info("lru:" & to_hstring(lru));


report "accessing 7:"; info("accessing 7:");
acc <= "111"; acc <= "111";
wait for clk_period; wait for clk_period;
report "lru:" & to_hstring(lru); info("lru:" & to_hstring(lru));


report "accessing 4:"; info("accessing 4:");
acc <= "100"; acc <= "100";
wait for clk_period; wait for clk_period;
report "lru:" & to_hstring(lru); info("lru:" & to_hstring(lru));


report "accessing 3:"; info("accessing 3:");
acc <= "011"; acc <= "011";
wait for clk_period; wait for clk_period;
report "lru:" & to_hstring(lru); info("lru:" & to_hstring(lru));


report "accessing 5:"; info("accessing 5:");
acc <= "101"; acc <= "101";
wait for clk_period; wait for clk_period;
report "lru:" & to_hstring(lru); info("lru:" & to_hstring(lru));


report "accessing 3:"; info("accessing 3:");
acc <= "011"; acc <= "011";
wait for clk_period; wait for clk_period;
report "lru:" & to_hstring(lru); info("lru:" & to_hstring(lru));


report "accessing 5:"; info("accessing 5:");
acc <= "101"; acc <= "101";
wait for clk_period; wait for clk_period;
report "lru:" & to_hstring(lru); info("lru:" & to_hstring(lru));


report "accessing 6:"; info("accessing 6:");
acc <= "110"; acc <= "110";
wait for clk_period; wait for clk_period;
report "lru:" & to_hstring(lru); info("lru:" & to_hstring(lru));


report "accessing 0:"; info("accessing 0:");
acc <= "000"; acc <= "000";
wait for clk_period; wait for clk_period;
report "lru:" & to_hstring(lru); info("lru:" & to_hstring(lru));


test_runner_cleanup(runner); test_runner_cleanup(runner);
end process; end process;

85
rotator_tb.vhdl
Unescape Escape View File

@ -23,7 +23,7 @@ architecture behave of rotator_tb is
signal shift: std_ulogic_vector(6 downto 0) := (others => '0'); signal shift: std_ulogic_vector(6 downto 0) := (others => '0');
signal insn: std_ulogic_vector(31 downto 0) := (others => '0'); signal insn: std_ulogic_vector(31 downto 0) := (others => '0');
signal is_32bit, right_shift, arith, clear_left, clear_right: std_ulogic := '0'; signal is_32bit, right_shift, arith, clear_left, clear_right: std_ulogic := '0';
signal result: std_ulogic_vector(63 downto 0); signal res: std_ulogic_vector(63 downto 0);
signal carry_out: std_ulogic; signal carry_out: std_ulogic;
signal extsw: std_ulogic; signal extsw: std_ulogic;


@ -40,7 +40,7 @@ begin
clear_left => clear_left, clear_left => clear_left,
clear_right => clear_right, clear_right => clear_right,
sign_ext_rs => extsw, sign_ext_rs => extsw,
result => result, result => res,
carry_out => carry_out carry_out => carry_out
); );


@ -50,7 +50,11 @@ begin
variable rnd : RandomPType; variable rnd : RandomPType;
begin begin
rnd.InitSeed(stim_process'path_name); rnd.InitSeed(stim_process'path_name);

-- TODO: Consider making debug messages visible with a command line option
-- rather than uncommenting this line:
-- show(display_handler, debug);
test_runner_setup(runner, runner_cfg); test_runner_setup(runner, runner_cfg);


while test_suite loop while test_suite loop
@ -68,8 +72,7 @@ begin
insn <= x"00000" & '0' & rnd.RandSlv(10) & '0'; insn <= x"00000" & '0' & rnd.RandSlv(10) & '0';
wait for clk_period; wait for clk_period;
behave_ra := ppc_rlwinm(rs, shift(4 downto 0), insn_mb32(insn), insn_me32(insn)); behave_ra := ppc_rlwinm(rs, shift(4 downto 0), insn_mb32(insn), insn_me32(insn));
assert behave_ra = result check_equal(res, behave_ra, result("for rlwnm"));
report "bad rlwnm expected " & to_hstring(behave_ra) & " got " & to_hstring(result);
end loop; end loop;


elsif run("Test rlwimi") then elsif run("Test rlwimi") then
@ -85,8 +88,7 @@ begin
insn <= x"00000" & '0' & rnd.RandSlv(10) & '0'; insn <= x"00000" & '0' & rnd.RandSlv(10) & '0';
wait for clk_period; wait for clk_period;
behave_ra := ppc_rlwimi(ra, rs, shift(4 downto 0), insn_mb32(insn), insn_me32(insn)); behave_ra := ppc_rlwimi(ra, rs, shift(4 downto 0), insn_mb32(insn), insn_me32(insn));
assert behave_ra = result check_equal(res, behave_ra, result("for rlwnimi"));
report "bad rlwimi expected " & to_hstring(behave_ra) & " got " & to_hstring(result);
end loop; end loop;


elsif run("Test rld[i]cl") then elsif run("Test rld[i]cl") then
@ -102,8 +104,7 @@ begin
insn <= x"00000" & '0' & rnd.RandSlv(10) & '0'; insn <= x"00000" & '0' & rnd.RandSlv(10) & '0';
wait for clk_period; wait for clk_period;
behave_ra := ppc_rldicl(rs, shift(5 downto 0), insn_mb(insn)); behave_ra := ppc_rldicl(rs, shift(5 downto 0), insn_mb(insn));
assert behave_ra = result check_equal(res, behave_ra, result("for rldicl"));
report "bad rldicl expected " & to_hstring(behave_ra) & " got " & to_hstring(result);
end loop; end loop;


elsif run("Test rld[i]cr") then elsif run("Test rld[i]cr") then
@ -119,13 +120,12 @@ begin
insn <= x"00000" & '0' & rnd.RandSlv(10) & '0'; insn <= x"00000" & '0' & rnd.RandSlv(10) & '0';
wait for clk_period; wait for clk_period;
behave_ra := ppc_rldicr(rs, shift(5 downto 0), insn_me(insn)); behave_ra := ppc_rldicr(rs, shift(5 downto 0), insn_me(insn));
--report "rs = " & to_hstring(rs); debug("rs = " & to_hstring(rs));
--report "ra = " & to_hstring(ra); debug("ra = " & to_hstring(ra));
--report "shift = " & to_hstring(shift); debug("shift = " & to_hstring(shift));
--report "insn me = " & to_hstring(insn_me(insn)); debug("insn me = " & to_hstring(insn_me(insn)));
--report "result = " & to_hstring(result); debug("result = " & to_hstring(res));
assert behave_ra = result check_equal(res, behave_ra, result("for rldicr"));
report "bad rldicr expected " & to_hstring(behave_ra) & " got " & to_hstring(result);
end loop; end loop;


elsif run("Test rldic") then elsif run("Test rldic") then
@ -141,8 +141,7 @@ begin
insn <= x"00000" & '0' & rnd.RandSlv(10) & '0'; insn <= x"00000" & '0' & rnd.RandSlv(10) & '0';
wait for clk_period; wait for clk_period;
behave_ra := ppc_rldic(rs, shift(5 downto 0), insn_mb(insn)); behave_ra := ppc_rldic(rs, shift(5 downto 0), insn_mb(insn));
assert behave_ra = result check_equal(res, behave_ra, result("for rldic"));
report "bad rldic expected " & to_hstring(behave_ra) & " got " & to_hstring(result);
end loop; end loop;


elsif run("Test rldimi") then elsif run("Test rldimi") then
@ -158,8 +157,7 @@ begin
insn <= x"00000" & '0' & rnd.RandSlv(10) & '0'; insn <= x"00000" & '0' & rnd.RandSlv(10) & '0';
wait for clk_period; wait for clk_period;
behave_ra := ppc_rldimi(ra, rs, shift(5 downto 0), insn_mb(insn)); behave_ra := ppc_rldimi(ra, rs, shift(5 downto 0), insn_mb(insn));
assert behave_ra = result check_equal(res, behave_ra, result("for rldimi"));
report "bad rldimi expected " & to_hstring(behave_ra) & " got " & to_hstring(result);
end loop; end loop;


elsif run("Test slw") then elsif run("Test slw") then
@ -174,8 +172,7 @@ begin
shift <= rnd.RandSlv(7); shift <= rnd.RandSlv(7);
wait for clk_period; wait for clk_period;
behave_ra := ppc_slw(rs, std_ulogic_vector(resize(unsigned(shift), 64))); behave_ra := ppc_slw(rs, std_ulogic_vector(resize(unsigned(shift), 64)));
assert behave_ra = result check_equal(res, behave_ra, result("for slv"));
report "bad slw expected " & to_hstring(behave_ra) & " got " & to_hstring(result);
end loop; end loop;


elsif run("Test sld") then elsif run("Test sld") then
@ -190,8 +187,7 @@ begin
shift <= rnd.RandSlv(7); shift <= rnd.RandSlv(7);
wait for clk_period; wait for clk_period;
behave_ra := ppc_sld(rs, std_ulogic_vector(resize(unsigned(shift), 64))); behave_ra := ppc_sld(rs, std_ulogic_vector(resize(unsigned(shift), 64)));
assert behave_ra = result check_equal(res, behave_ra, result("for sld"));
report "bad sld expected " & to_hstring(behave_ra) & " got " & to_hstring(result);
end loop; end loop;


elsif run("Test srw") then elsif run("Test srw") then
@ -206,8 +202,7 @@ begin
shift <= rnd.RandSlv(7); shift <= rnd.RandSlv(7);
wait for clk_period; wait for clk_period;
behave_ra := ppc_srw(rs, std_ulogic_vector(resize(unsigned(shift), 64))); behave_ra := ppc_srw(rs, std_ulogic_vector(resize(unsigned(shift), 64)));
assert behave_ra = result check_equal(res, behave_ra, result("for srw"));
report "bad srw expected " & to_hstring(behave_ra) & " got " & to_hstring(result);
end loop; end loop;


elsif run("Test srd") then elsif run("Test srd") then
@ -222,8 +217,7 @@ begin
shift <= rnd.RandSlv(7); shift <= rnd.RandSlv(7);
wait for clk_period; wait for clk_period;
behave_ra := ppc_srd(rs, std_ulogic_vector(resize(unsigned(shift), 64))); behave_ra := ppc_srd(rs, std_ulogic_vector(resize(unsigned(shift), 64)));
assert behave_ra = result check_equal(res, behave_ra, result("for srd"));
report "bad srd expected " & to_hstring(behave_ra) & " got " & to_hstring(result);
end loop; end loop;


elsif run("Test sraw[i]") then elsif run("Test sraw[i]") then
@ -238,12 +232,12 @@ begin
shift <= '0' & rnd.RandSlv(6); shift <= '0' & rnd.RandSlv(6);
wait for clk_period; wait for clk_period;
behave_ca_ra := ppc_sraw(rs, std_ulogic_vector(resize(unsigned(shift), 64))); behave_ca_ra := ppc_sraw(rs, std_ulogic_vector(resize(unsigned(shift), 64)));
--report "rs = " & to_hstring(rs); debug("rs = " & to_hstring(rs));
--report "ra = " & to_hstring(ra); debug("ra = " & to_hstring(ra));
--report "shift = " & to_hstring(shift); debug("shift = " & to_hstring(shift));
--report "result = " & to_hstring(carry_out & result); debug("result = " & to_hstring(carry_out & res));
assert behave_ca_ra(63 downto 0) = result and behave_ca_ra(64) = carry_out check_equal(res, behave_ca_ra(63 downto 0), result("for sraw"));
report "bad sraw expected " & to_hstring(behave_ca_ra) & " got " & to_hstring(carry_out & result); check_equal(carry_out, behave_ca_ra(64), result("for sraw carry_out"));
end loop; end loop;


elsif run("Test srad[i]") then elsif run("Test srad[i]") then
@ -258,12 +252,12 @@ begin
shift <= rnd.RandSlv(7); shift <= rnd.RandSlv(7);
wait for clk_period; wait for clk_period;
behave_ca_ra := ppc_srad(rs, std_ulogic_vector(resize(unsigned(shift), 64))); behave_ca_ra := ppc_srad(rs, std_ulogic_vector(resize(unsigned(shift), 64)));
--report "rs = " & to_hstring(rs); debug("rs = " & to_hstring(rs));
--report "ra = " & to_hstring(ra); debug("ra = " & to_hstring(ra));
--report "shift = " & to_hstring(shift); debug("shift = " & to_hstring(shift));
--report "result = " & to_hstring(carry_out & result); debug("result = " & to_hstring(carry_out & res));
assert behave_ca_ra(63 downto 0) = result and behave_ca_ra(64) = carry_out check_equal(res, behave_ca_ra(63 downto 0), result("for srad"));
report "bad srad expected " & to_hstring(behave_ca_ra) & " got " & to_hstring(carry_out & result); check_equal(carry_out, behave_ca_ra(64), result("for srad carry_out"));
end loop; end loop;


elsif run("Test extswsli") then elsif run("Test extswsli") then
@ -282,12 +276,11 @@ begin
behave_ra(63 downto 32) := (others => rs(31)); behave_ra(63 downto 32) := (others => rs(31));
behave_ra := std_ulogic_vector(shift_left(unsigned(behave_ra), behave_ra := std_ulogic_vector(shift_left(unsigned(behave_ra),
to_integer(unsigned(shift)))); to_integer(unsigned(shift))));
--report "rs = " & to_hstring(rs); debug("rs = " & to_hstring(rs));
--report "ra = " & to_hstring(ra); debug("ra = " & to_hstring(ra));
--report "shift = " & to_hstring(shift); debug("shift = " & to_hstring(shift));
--report "result = " & to_hstring(carry_out & result); debug("result = " & to_hstring(carry_out & res));
assert behave_ra = result check_equal(res, behave_ra, result("for extswsli"));
report "bad extswsli expected " & to_hstring(behave_ra) & " got " & to_hstring(result);
end loop; end loop;
end if; end if;
end loop; end loop;

8
run.py
Unescape Escape View File

@ -7,8 +7,8 @@ prj.add_osvvm()
root = Path(__file__).parent root = Path(__file__).parent


lib = prj.add_library("lib") lib = prj.add_library("lib")
lib.add_source_files(root / "litedram/extras/*.vhdl") lib.add_source_files(root / "litedram" / "extras" / "*.vhdl")
lib.add_source_files(root / "litedram/generated/sim/*.vhdl") lib.add_source_files(root / "litedram" / "generated" / "sim" / "*.vhdl")


# Use multiply.vhd and not xilinx-mult.vhd. Use VHDL-based random. # Use multiply.vhd and not xilinx-mult.vhd. Use VHDL-based random.
vhdl_files = glob(str(root / "*.vhdl")) vhdl_files = glob(str(root / "*.vhdl"))
@ -22,6 +22,8 @@ vhdl_files = [
lib.add_source_files(vhdl_files) lib.add_source_files(vhdl_files)


unisim = prj.add_library("unisim") unisim = prj.add_library("unisim")
unisim.add_source_files(root / "sim-unisim/*.vhdl") unisim.add_source_files(root / "sim-unisim" / "*.vhdl")

prj.set_sim_option("disable_ieee_warnings", True)


prj.main() prj.main()

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