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Given the VHDL code for an 8-bit numbers comparator, please create a Test Bench file.

Given the VHDL code for an 8-bit numbers comparator, please create a Test Bench file.

Computer Networking: A Top-Down Approach (7th Edition)
Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
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Given the VHDL code for an 8-bit numbers comparator, please create a Test Bench file.
Here is a transcription of the VHDL code for an 8-bit magnitude comparator: --- **VHDL Code for 8-Bit Magnitude Comparator** ```vhdl LIBRARY ieee; USE ieee.std_logic_1164.all; USE ieee.std_logic_arith.all; ENTITY Mag_Comp_8Bit IS PORT ( A, B : IN STD_LOGIC_VECTOR(7 DOWNTO 0); AeqB, AgtB, AltB : OUT STD_LOGIC ); END Mag_Comp_8Bit; ARCHITECTURE Behavior OF Mag_Comp_8Bit IS begin AgtB <= '1' when (A > B) else '0'; AeqB <= '1' when (A = B) else '0'; AltB <= '1' when (A < B) else '0'; END Behavior; ``` **Explanation:** - **Library and Packages:** - `ieee`: The IEEE library is used for standard logic operations and data types. - `std_logic_1164`: Package supporting standard logical vector operations. - `std_logic_arith`: Package supporting arithmetic operations on logical vectors. - **Entity Declaration:** - `ENTITY Mag_Comp_8Bit`: Defines the 8-bit magnitude comparator entity. - **Ports:** - `A, B`: 8-bit input vectors (STD_LOGIC_VECTOR(7 DOWNTO 0)). - `AeqB`: Output is '1' if A equals B. - `AgtB`: Output is '1' if A is greater than B. - `AltB`: Output is '1' if A is less than B. - **Architecture:** - `Behavior`: Defines the behavior of the comparator. - Comparisons: - `AgtB`: Outputs '1' if `A > B`, otherwise '0'. - `AeqB`: Outputs '1' if `A = B`, otherwise '0'. - `AltB`: Outputs '1' if `A < B`, otherwise '0'. This code allows for comparison of two 8-bit binary numbers, providing outputs for equality, greater than, and less than conditions. It is useful in digital systems where such comparisons are required.
Transcribed Image Text:Here is a transcription of the VHDL code for an 8-bit magnitude comparator: --- **VHDL Code for 8-Bit Magnitude Comparator** ```vhdl LIBRARY ieee; USE ieee.std_logic_1164.all; USE ieee.std_logic_arith.all; ENTITY Mag_Comp_8Bit IS PORT ( A, B : IN STD_LOGIC_VECTOR(7 DOWNTO 0); AeqB, AgtB, AltB : OUT STD_LOGIC ); END Mag_Comp_8Bit; ARCHITECTURE Behavior OF Mag_Comp_8Bit IS begin AgtB <= '1' when (A > B) else '0'; AeqB <= '1' when (A = B) else '0'; AltB <= '1' when (A < B) else '0'; END Behavior; ``` **Explanation:** - **Library and Packages:** - `ieee`: The IEEE library is used for standard logic operations and data types. - `std_logic_1164`: Package supporting standard logical vector operations. - `std_logic_arith`: Package supporting arithmetic operations on logical vectors. - **Entity Declaration:** - `ENTITY Mag_Comp_8Bit`: Defines the 8-bit magnitude comparator entity. - **Ports:** - `A, B`: 8-bit input vectors (STD_LOGIC_VECTOR(7 DOWNTO 0)). - `AeqB`: Output is '1' if A equals B. - `AgtB`: Output is '1' if A is greater than B. - `AltB`: Output is '1' if A is less than B. - **Architecture:** - `Behavior`: Defines the behavior of the comparator. - Comparisons: - `AgtB`: Outputs '1' if `A > B`, otherwise '0'. - `AeqB`: Outputs '1' if `A = B`, otherwise '0'. - `AltB`: Outputs '1' if `A < B`, otherwise '0'. This code allows for comparison of two 8-bit binary numbers, providing outputs for equality, greater than, and less than conditions. It is useful in digital systems where such comparisons are required.
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