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library ieee;
use ieee.std_logic_1164.all;
use ieee.numeric_std.all;
entity issue2 is
port (uns_inp : in unsigned (4-1 downto 0);
uns_sll : out unsigned (8-1 downto 0);
uns_srl : out unsigned (8-1 downto 0);
sgn_inp : in signed (4-1 downto 0);
sgn_sll : out signed (8-1 downto 0);
sgn_srl : out signed (8-1 downto 0));
end issue2;
architecture beh of issue2 is
begin
uns_sll <= resize (uns_inp, sgn_srl'length) sll 1; -- work
uns_srl <= resize (uns_inp, sgn_srl'length) srl 1; -- work
sgn_sll <= resize (sgn_inp, sgn_srl'length) sll 1; -- error
sgn_srl <= resize (sgn_inp, sgn_srl'length) srl 1; -- error
end architecture beh;
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