Question
Complete the VHDL Code for a 32 bit ALU then create a good testbench to see it works: --VHDL Code library IEEE; use IEEE.STD_LOGIC_1164.ALL; use
Complete the VHDL Code for a 32 bit ALU then create a "good" testbench to see it works:
--VHDL Code
library IEEE;
use IEEE.STD_LOGIC_1164.ALL; use IEEE.STD_LOGIC_ARITH.ALL; use IEEE.STD_LOGIC_UNSIGNED.ALL; entity ALU_32bit is Port ( i_a : in STD_LOGIC_VECTOR (31 downto 0); i_b : in STD_LOGIC_VECTOR (31 downto 0); c_in : in STD_LOGIC; s : in STD_LOGIC_VECTOR (3 downto 0); result : out STD_LOGIC_VECTOR (32 downto 0)); end ALU_32bit;
architecture Bhv_alu_32bit of ALU_32bit is component Arithmetic is Port ( i_a : in STD_LOGIC_VECTOR (31 downto 0); i_b : in STD_LOGIC_VECTOR (31 downto 0); c_in : in STD_LOGIC; s : in STD_LOGIC_VECTOR (1 downto 0); result : out STD_LOGIC_VECTOR (32 downto 0)); end component;
component Logic is Port ( i_a : in STD_LOGIC_VECTOR (31 downto 0); i_b : in STD_LOGIC_VECTOR (31 downto 0); s : in STD_LOGIC_VECTOR (1 downto 0); result : out STD_LOGIC_VECTOR (32 downto 0)); end component;
component Shift is Port ( i_a : in STD_LOGIC_VECTOR (31 downto 0); c_in : in STD_LOGIC; s : in STD_LOGIC; result : out STD_LOGIC_VECTOR (32 downto 0)); end component; component mux33_4to1 is Port ( a,b,c,d:in STD_LOGIC_VECTOR(32 downto 0); s: in STD_LOGIC_VECTOR(1 downto 0); y: out STD_LOGIC_VECTOR(32 downto 0)); end component;
signal sg_arith :STD_LOGIC_VECTOR(32 downto 0); signal sg_logic :STD_LOGIC_VECTOR(32 downto 0); signal sg_shift :STD_LOGIC_VECTOR(32 downto 0);
begin p0:Arithmetic Port map(i_a,i_b,c_in,s(1 downto 0),sg_arith); p1:Logic Port map(i_a,i_b,s(1 downto 0),sg_logic); p2:Shift Port map(i_a,c_in,s(1),sg_shift); p3:mux33_4to1 Port map(sg_arith,sg_logic,sg_shift,"ZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZ",s(3 downto 2),result);
end Bhv_alu_32bit;
Step by Step Solution
There are 3 Steps involved in it
Step: 1
Get Instant Access to Expert-Tailored Solutions
See step-by-step solutions with expert insights and AI powered tools for academic success
Step: 2
Step: 3
Ace Your Homework with AI
Get the answers you need in no time with our AI-driven, step-by-step assistance
Get Started