"As a teenager in the late 1970s and 1980s, I was fascinated by electronics and the emerging world of computing. One of the first computers I had access to was the TRS-80 Model I, which introduced me to the Zilog Z80 processor, an improved clone of the 8080. I fell in love with this versatile and powerful microprocessor, and over the years, I've dreamed of building my own system from scratch.

Now, I'm finally making that dream a reality with my Z80 Project. But I don't want to stop there. I want to share my passion and knowledge with others who are interested in building and programming microprocessor projects or electronic systems. Whether you're a newcomer to the world of electronics or a seasoned hobbyist, I'm here to guide you through the process of building a retro computer system, from simple standalone projects like clocks or controllers to full-fledged 8-bit operating systems.

To preserve the retro feel, we'll be using through-hole components that are still available today. So join me on this journey and let's build something amazing together!"

• Prerequisites:

  • Understanding how logic works

  • Basic understanding of how a CPU works

  • Logic translates into voltage levels

  • Tools needed

  • Precautions to prevent costly mistakes of killing the CPU or other chips

• Tools needed:

  • A breadboard

  • A soldering iron

  • A multimeter

  • A wire stripper

  • A variety of resistors, capacitors, and inductors

  • A Z80 CPU

  • A variety of other chips

• Precautions:

  • Always wear safety glasses when working with electronics.

  • Use a soldering iron with a temperature control.

  • Be careful not to touch hot solder.

  • Test all of your components before soldering them in place.

  • Make sure that all of your connections are secure.

First Wire Wrap Build

The above has went through a couple of modifications, on the address decoding.