This is a microscopic photograph of an 8085 processor die. [Ken Shirriff] uses the image in his explanation of how the ALU works. It is only capable of five basic operations: ADD, OR ...

But [Ken Shirriff’s] write-up on how the 8085 processor’s registers were designed will put you in silicon reverse-engineering heaven. He manages to get to the bottom of the tricks the ...

Apart from having the most obvious name, 8085 Simulator developed by Vikas Enterprises has a simple and intuitive UI making it a perfect choice for beginners. One of its selling points is ISR or ...