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library ieee;
use ieee.std_logic_1164.all;
entity ent3 is
generic (
TUSER_WIDTH : natural := 1);
end ent3;
architecture ent of ent3 is
type data_t is record
tuser : std_logic_vector;
end record;
type data_array_t is array (natural range <>) of data_t;
type std_logic_array_t is array (natural range <>) of std_logic_vector;
subtype tuser_array_t is std_logic_array_t(open)(TUSER_WIDTH - 1 downto 0);
procedure write_data (constant tuser : tuser_array_t) is
begin
for i in tuser'range loop
report integer'image(i) & " =>" & to_bstring(tuser(i));
end loop;
assert tuser(1)(0) = '1'; -- <<<<<====== This should not fail
end procedure;
procedure handle_data_array ( constant data : data_array_t) is
variable local_tuser : std_logic_array_t(data'range)(TUSER_WIDTH - 1 downto 0);
begin
-- Convert a list of tuples into two lists
for i in data'range loop
local_tuser(i) := data(i).tuser;
assert local_tuser(i) = data(i).tuser
report "local_tuser and data(i).tuser should not be different here";
end loop;
report "local(0)=" & to_bstring(local_tuser(0));
report "local(1)=" & to_bstring(local_tuser(1));
write_data(tuser => local_tuser);
end;
constant data : data_array_t(0 to 1)(tuser(0 downto 0)) :=
(0 => (tuser => (0 downto 0 => '0')),
1 => (tuser => (0 downto 0 => '1')));
constant data2 : tuser_array_t(0 to 1) := (0 => "0", 1 => "1");
begin
process
begin
write_data(data2);
report "data(0).tuser=" & to_bstring(data(0).tuser);
report "data(1).tuser=" & to_bstring(data(1).tuser);
handle_data_array(data);
wait;
end process;
end ent;
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