+
+# Estimating transistor count using yosys
+
+Use yosys to run synthesis and using `stat` to view gate/transistor count:
+
+ cd src/ls2/
+ yosys
+ yosys> read_verilog ls2.v external_core_top.v ../uart16550/rtl/verilog/*.v
+ yosys> synth
+ yosys> tee -a stat_cmos.log stat -tech cmos
+
+Then you can view the resulting log file afterwards. Bare in mind `synth` will probably take a while. **TODO: Find multi-threaded option**