Uploaded June 2021 | Updated September 2026, 1 week ago

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Link to diagrams & assembly code:
akuzechie.blogspot.com/2021/06/a-simple-calculator-using-at89s52.html

Contents:
0:00 Introduction
0:21 Arithmetic Instructions
3:16 Block & Circuit Diagrams of Implemented System
4:48 Demonstrations
5:40 Assembly Code
7:52 Conclusion