Progress in examples/gowin/

examples/gowin/run.sh

@@ -3,3 +3,10 @@ set -ex
 yosys -p "synth_gowin -top demo -vout demo_syn.v" demo.v
 $GOWIN_HOME/bin/gowin -d demo_syn.v -cst demo.cst -sdc demo.sdc -p GW2A55-PBGA484-6 \
 		-warning_all -out demo_out.v -rpt demo.rpt -tr demo_tr.html -bit demo.bit
+
+# post place&route simulation (icarus verilog)
+if false; then
+	iverilog -D POST_IMPL -o testbench -s testbench testbench.v \
+			demo_out.v $(yosys-config --datdir/gowin/cells_sim.v)
+	vvp -N testbench
+fi