diff --git a/lib/ps2_port/ghdl/tb_ps2_core.gtkw b/lib/ps2_port/ghdl/tb_ps2_core.gtkw
new file mode 100644
index 0000000..3acd585
--- /dev/null
+++ b/lib/ps2_port/ghdl/tb_ps2_core.gtkw
@@ -0,0 +1,39 @@
+[*]
+[*] GTKWave Analyzer v3.3.104 (w)1999-2020 BSI
+[*] Wed Mar 24 16:30:51 2021
+[*]
+[dumpfile] "/home/jens/work/vhdl/trunk/lib/ps2_port/ghdl/build/tb_ps2_core/tb_ps2_core.vcd"
+[dumpfile_mtime] "Wed Mar 24 16:29:48 2021"
+[dumpfile_size] 41947537
+[savefile] "/home/jens/work/vhdl/trunk/lib/ps2_port/ghdl/build/tb_ps2_core/tb_ps2_core.gtkw"
+[timestart] 0
+[size] 1856 1136
+[pos] -51 -51
+*-40.397423 3178000000000 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1
+[sst_width] 233
+[signals_width] 192
+[sst_expanded] 1
+[sst_vpaned_height] 331
+@28
+tb_ps2_core.rst
+tb_ps2_core.clk
+tb_ps2_core.din_vld
+@22
+tb_ps2_core.din[7:0]
+tb_ps2_core.dout[7:0]
+tb_ps2_core.dout_reg[7:0]
+@28
+tb_ps2_core.ps2_clk_i
+tb_ps2_core.ps2_clk_j
+tb_ps2_core.ps2_clk_rx
+tb_ps2_core.ps2_clk_tx
+tb_ps2_core.ps2_data_rx
+tb_ps2_core.ps2_data_tx
+tb_ps2_core.rx_err_flag
+tb_ps2_core.rx_err_par
+tb_ps2_core.rx_present
+tb_ps2_core.tx_empty
+@29
+tb_ps2_core.tx_trig
+[pattern_trace] 1
+[pattern_trace] 0
diff --git a/lib/ps2_port/ghdl/tb_ps2_core.make b/lib/ps2_port/ghdl/tb_ps2_core.make
new file mode 100644
index 0000000..a6473be
--- /dev/null
+++ b/lib/ps2_port/ghdl/tb_ps2_core.make
@@ -0,0 +1,15 @@
+ROOT_PATH := ../../..
+LIB_PATH := $(ROOT_PATH)/lib
+MOD_PATH := $(ROOT_PATH)/lib/ps2_port
+
+SRCS += $(MOD_PATH)/src/ps2_core.vhd
+SRCS += $(MOD_PATH)/src/tb_ps2_core.vhd
+
+# Compile
+TARGET := tb_ps2_core
+ENTITY := tb_ps2_core
+WITH_VCD := y
+RUN_TIME := 10ms
+
+include $(ROOT_PATH)/Common/make/ghdl.mk
+