ALU with Sequential Data Entry

You are given the task of designing a single$-$purpose processor to perform different arithmetic operations on two $4-$bit binary numbers. The processor should consist of an ALU that can perform the following operations using ADDERS only:

$$ Addition

$$ Subtraction

$$ Multiplication

Input data must be entered sequentially through a single input data path.

part $1$: design a single$-$purpose processor that implements that program. Your solution to the assignment should include a complete design of the processor$$s FSMD$,$ datapath and the control unit. Provide a neat and clean solution; you can use diagramming software such as VISIO for presenting your drawings.

part $2$: Implement your processor$$s datapath and controller in VHDL$.$ You are free to select the structural hierarchy of the implementation; the implementation could be behavioral, structural or a mixed implementation. Test your implementation by simulating the VHDL implementation in ModelSim and provide relevant timing diagrams.

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read all parts carefully!!!

use VHDL Quartus and modelSim

keep it easy and simple $,$and u can use componants