This version of ext2sim is a minor update of the original ext2sim 
distribution. It maintains the diffusion area and perimeter information
and the fet substrate connection in the sim file (the resistance classes
of N and P diffusion should be 0 and 1 respectively).
This way it is extremely easy to write an awk or perl script to obtain
a flat spice netlist of the extracted circuit (in fact the included script
named sim2spi does exactly that).

For any problems contact sidirop@chroma.stanford.edu.
