PoC.arith.prefix_or
Prefix OR computation:
y(i) <= '0' when x(i downto 0) = (i downto 0 => '0') else '1';
This implementation uses carry chains for wider implementations.
Entity Declaration:
1 generic (
2 N : positive
3 );
4 port (
5 x : in std_logic_vector(N-1 downto 0);
6 y : out std_logic_vector(N-1 downto 0)
7 );
8end entity;