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entity ent2 is
port (v : out bit_vector (7 downto 0);
b : in bit);
end ent2;
architecture behav of ent2 is
begin
v <= (others => b);
end behav;
entity top2 is
end top2;
architecture behav of top2 is
signal s : bit_vector (7 downto 0);
signal b : bit;
begin
dut : entity work.ent2
port map (
-- ERROR: missing 1 downto 0!
v (3 downto 2) => s (3 downto 2),
v (7 downto 4) => s (7 downto 4),
b => b);
b <= '0';
end behav;
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