Evol Information Page

Evol is a virtual machine or emulator designed to be a "holding pen" for self-replicating programs written in a custom RISC-based assembly language. These programs evolve through random point and line mutations (analogous to interstellar radiation and genetic crossover, respectively) and periodic fitness-based cullings.

Like Avida, Evol was inspired by Thomas Ray's Tierra alife simulator.

Current Evol files

The code (evol.src)
The initialization file (evol.ini)
The build script (evol.bld)

Screen captures and other output

Viewport (p_interface=1) in hex mode (p_hex=1)
Another hex view, but with denser activity
The viewport in human-readable mode (p_hex=0)
Some non-curses output (p_interface=0); good for debugging
The histogram feature (p_interface=2)

Diagrams and documentation

A drawing of the arl and orl "clouds" in linked-list representation
Some scans of early material and key doodles