26-12-2012, 11:53 AM
DESIGN AMD IMPLEMENTATION OF 4-BIT ALU USING FPGA
[attachment=45233]
AIM:
To design and implement ALU in Verilog and VHDL using FPGA
HARDWARE REQUIRED:
FPGA KIT
JTEG Cable
SOFTWARE REQUIRED:
XILINX ISE 12.1
THEORY:
Stands for "Arithmetic Logic Unit." An ALU is an integrated circuit within a CPU that performs arithmetic and logic operations. Arithmetic instructions include addition, subtraction, and shifting operations, while logic instructions include boolean comparisons, such as AND, OR, XOR, and NOT operations.ALUs are designed to perform integer calculations.
While the ALU is a fundamental component of all processors, the design and function of an ALU may vary between different processor models. For example, some ALUs only perform integer calculations, while others are designed to handle floating point operations as well. Some processors contain a single ALU, while others include several arithmetic logic units that work together to perform calculations. Regardless of the way an ALU is designed, its primary job is to handle integer operations. Therefore, a computer's integer performance is tied directly to the processing speed of the ALU.
In implementation of ALU,we used four bit input A and B, and a five bit select lines (select) which is used to select the operation to be performed.
[attachment=45233]
AIM:
To design and implement ALU in Verilog and VHDL using FPGA
HARDWARE REQUIRED:
FPGA KIT
JTEG Cable
SOFTWARE REQUIRED:
XILINX ISE 12.1
THEORY:
Stands for "Arithmetic Logic Unit." An ALU is an integrated circuit within a CPU that performs arithmetic and logic operations. Arithmetic instructions include addition, subtraction, and shifting operations, while logic instructions include boolean comparisons, such as AND, OR, XOR, and NOT operations.ALUs are designed to perform integer calculations.
While the ALU is a fundamental component of all processors, the design and function of an ALU may vary between different processor models. For example, some ALUs only perform integer calculations, while others are designed to handle floating point operations as well. Some processors contain a single ALU, while others include several arithmetic logic units that work together to perform calculations. Regardless of the way an ALU is designed, its primary job is to handle integer operations. Therefore, a computer's integer performance is tied directly to the processing speed of the ALU.
In implementation of ALU,we used four bit input A and B, and a five bit select lines (select) which is used to select the operation to be performed.