Lazarus 64 Retro Game System

It was a project built over a span of a few years; the creator is not interested in seeing an LED flashing but wants an entire video game system. The Lazarus-64 Retro Game System is the ultimate platform to fine tune ones embedded programming skills since it allows the connection of any microcontroller and the use of any programming language and also a great retro video game platform.

Lazarus-64, breadboard game system; certainly sounds like something from the 1980s and it also has all the ICs used are only those available from the retro age of 30 years back. Even more amazing is how it has 256 flicker free color support, while not using NTSC chips.

There is a whole lot more to Lazarus, including double buffering and VMS, but sadly it appears progress has stopped on the Lazarus-64 breadboard game system. It was necessary to use the 74HC245 buffers in this part of the VMS as traffic is bi-directional from the host processor data bus into the memory banks. To write to the memory, the AVR sets the data port for output and then sets the OE and WE pins accordingly.

Rest of the project prototype-1.aspx