Which logic circuit is described in the following code? LIBRARY IEEE; USE IEEE.std_logic_1164.all; ENTITY system IS GENERIC (1: INTEGER := 3); PORT (a, b: IN STD_LOGIC_VECTOR (1 DOWNTO 0); : IN STD_LOGIC; C X y END system; ARCHITECTURE design OF system IS : OUT STD_LOGIC_VECTOR (1 DOWNTO 0) : OUT STD_LOGIC); BEGIN PROCESS (a, b, c) VARIABLE z: STD_LOGIC_VECTOR (1 DOWNTO 0); BEGIN z(0) := c; FOR I IN 0 TO LOOP x(i) < = a(i) XOR b(i) XOR z(i); z(i+1) <= (a(i) AND b(i)) OR (a(i) AND z(i)) OR (b(i) AND z(i)); END LOOP; y <= z(l); END PROCESS; END design;

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Author:James Kurose, Keith Ross
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Which logic circuit is described in the following code?
LIBRARY IEEE;
USE IEEE.std_logic_1164.all;
ENTITY system IS
GENERIC (1: INTEGER := 3);
E
PORT (a, b: IN STD_LOGIC_VECTOR (I DOWNTO 0);
IN STD_LOGIC;
C
X : OUT STD_LOGIC_VECTOR (1 DOWNTO 0)
y OUT STD_LOGIC);
END system;
ARCHITECTURE design OF system IS
BEGIN
PROCESS (a, b, c)
VARIABLE z: STD_LOGIC_VECTOR (1 DOWNTO 0);
BEGIN
z(0) := c;
FOR I IN 0 TO 1 LOOP
x(i) &lt; = a(i) XOR b(i) XOR z(i);
z(i+1) &lt;= (a(i) AND b(i)) OR (a(i) AND z(i)) OR (b(i) AND z(i));
END LOOP;
y <= z(l);
END PROCESS;
END design;
Transcribed Image Text:Which logic circuit is described in the following code? LIBRARY IEEE; USE IEEE.std_logic_1164.all; ENTITY system IS GENERIC (1: INTEGER := 3); E PORT (a, b: IN STD_LOGIC_VECTOR (I DOWNTO 0); IN STD_LOGIC; C X : OUT STD_LOGIC_VECTOR (1 DOWNTO 0) y OUT STD_LOGIC); END system; ARCHITECTURE design OF system IS BEGIN PROCESS (a, b, c) VARIABLE z: STD_LOGIC_VECTOR (1 DOWNTO 0); BEGIN z(0) := c; FOR I IN 0 TO 1 LOOP x(i) &lt; = a(i) XOR b(i) XOR z(i); z(i+1) &lt;= (a(i) AND b(i)) OR (a(i) AND z(i)) OR (b(i) AND z(i)); END LOOP; y <= z(l); END PROCESS; END design;
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