diff --git a/scripts/.gitignore b/scripts/vivado/.gitignore
similarity index 100%
rename from scripts/.gitignore
rename to scripts/vivado/.gitignore
diff --git a/scripts/synth_vivado.tcl b/scripts/vivado/synth_vivado.tcl
similarity index 92%
rename from scripts/synth_vivado.tcl
rename to scripts/vivado/synth_vivado.tcl
index 1685721..386a070 100644
--- a/scripts/synth_vivado.tcl
+++ b/scripts/vivado/synth_vivado.tcl
@@ -2,7 +2,7 @@
 # vivado -nojournal -log synth_vivado.log -mode batch -source synth_vivado.tcl
 
 read_verilog synth_vivado_soc.v
-read_verilog ../picorv32.v
+read_verilog ../../picorv32.v
 read_xdc synth_vivado.xdc
 
 synth_design -part xc7a15t-csg324 -top picorv32_axi
diff --git a/scripts/synth_vivado.xdc b/scripts/vivado/synth_vivado.xdc
similarity index 100%
rename from scripts/synth_vivado.xdc
rename to scripts/vivado/synth_vivado.xdc
diff --git a/scripts/synth_vivado_soc.v b/scripts/vivado/synth_vivado_soc.v
similarity index 100%
rename from scripts/synth_vivado_soc.v
rename to scripts/vivado/synth_vivado_soc.v
diff --git a/scripts/yosys/.gitignore b/scripts/yosys/.gitignore
new file mode 100644
index 0000000..d6fc3e3
--- /dev/null
+++ b/scripts/yosys/.gitignore
@@ -0,0 +1 @@
+osu018_stdcells.lib
diff --git a/scripts/yosys/synth_osu018.sh b/scripts/yosys/synth_osu018.sh
new file mode 100644
index 0000000..7a8693d
--- /dev/null
+++ b/scripts/yosys/synth_osu018.sh
@@ -0,0 +1,8 @@
+#!/bin/bash
+set -ex
+if test ! -s osu018_stdcells.lib; then
+	wget --continue -O osu018_stdcells.lib.part http://vlsiarch.ecen.okstate.edu/flows/MOSIS_SCMOS/`
+			`latest/cadence/lib/tsmc018/signalstorm/osu018_stdcells.lib
+	mv osu018_stdcells.lib.part osu018_stdcells.lib
+fi
+yosys -p 'synth -top picorv32; dfflibmap -liberty osu018_stdcells.lib; abc -liberty osu018_stdcells.lib; stat' ../../picorv32.v