https://github.com/samankhamesian/special-purpose-processor

This project is an implementation of a special-purpose processor that can calculate greatest common multiple (GCM) and least common factor (LCM) for two inputs based on input operation code (Opcode)
https://github.com/samankhamesian/special-purpose-processor

controller de2-115 fpga gcm lcm processor quartus-prime state-machine vhdl

Last synced: 3 months ago
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This project is an implementation of a special-purpose processor that can calculate greatest common multiple (GCM) and least common factor (LCM) for two inputs based on input operation code (Opcode)

• Host: GitHub
• URL: https://github.com/samankhamesian/special-purpose-processor
• Owner: SamanKhamesian
• License: apache-2.0
• Created: 2019-03-23T19:56:04.000Z (about 6 years ago)
• Default Branch: master
• Last Pushed: 2019-07-18T14:31:05.000Z (almost 6 years ago)
• Last Synced: 2024-01-29T23:13:48.176Z (over 1 year ago)
• Topics: controller, de2-115, fpga, gcm, lcm, processor, quartus-prime, state-machine, vhdl
• Language: Verilog
• Homepage:
• Size: 96.7 KB
• Stars: 3
• Watchers: 2
• Forks: 2
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
# Special-Purpose-Processor

### Abstract

The main objective of this project was to build a special-purpose processor that can calculate greatest common multiple (GCM) and least common factor (LCM) based on input operation code (opcode). At first I design a datapath and controller for this processor and synchronized them with system clock that implemented using Verilog HDL language.

At the end I implement this code on FPGA. (Use Altera DE2-115 board and Cyclone IV EP4CE115 micro-controller)

![RTL View](Images/RTL_Viewer.png)

#

#### System Design

For this processor, two main modules must have designed.

* Datapath : Contanis registers, multiplexers, ALU and comparator. Their values are updated according to the next state.

* Controller : Specify the next state based on datapath outputs.

#

#### State Machine

In the controller, the next state is specified based on comparator outputs. Three states are avialable for our state machine.



    



#### Testbench

The result of the system for calculating GCM and LCM for 6 and 4 inputs is shown below.

![Resukt](Images/TestBench.png)