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library ieee;
use ieee.std_logic_1164.all;
use ieee.fixed_pkg.all;
entity phz_calc is
end entity phz_calc;
architecture behavioral of phz_calc is
function to_string (inp: sfixed) return string is
variable image_str: string (1 to inp'length + 1);
variable j: integer range 1 to image_str'length + 1;
begin
j := 1;
for i in inp'range loop
if i = -1 then
image_str(j) := '.';
j := j + 1;
end if;
image_str(j) := character'VALUE(std_ulogic'IMAGE(inp(i)));
j := j + 1;
end loop;
return image_str;
end function;
begin
process
variable z: sfixed (3 downto -3);
begin
z := to_sfixed(3.2,3,-3);
report "z = " & to_string (z);
wait;
end process;
end architecture behavioral;
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