diff --git a/lib/CPUs/JCpu/ghdl/mul8x8.gtkw b/lib/CPUs/JCpu/ghdl/mul8x8.gtkw
new file mode 100644
index 0000000..57a5b03
--- /dev/null
+++ b/lib/CPUs/JCpu/ghdl/mul8x8.gtkw
@@ -0,0 +1,32 @@
+[*]
+[*] GTKWave Analyzer v3.3.104 (w)1999-2020 BSI
+[*] Mon Mar 22 20:01:47 2021
+[*]
+[dumpfile] "/home/jens/work/vhdl/trunk/lib/CPUs/JCpu/ghdl/build/mul8x8/mul8x8.ghw"
+[dumpfile_mtime] "Mon Mar 22 20:00:48 2021"
+[dumpfile_size] 25852
+[savefile] "/home/jens/work/vhdl/trunk/lib/CPUs/JCpu/ghdl/build/mul8x8/mul8x8.gtkw"
+[timestart] 0
+[size] 1173 600
+[pos] -1 -1
+*-28.009827 724000000 -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
+[treeopen] top.
+[treeopen] top.tb_cpu_embedded.
+[treeopen] top.tb_cpu_embedded.uut.
+[sst_width] 233
+[signals_width] 150
+[sst_expanded] 1
+[sst_vpaned_height] 144
+@28
+top.tb_cpu_embedded.rst
+top.tb_cpu_embedded.clk
+@22
+#{top.tb_cpu_embedded.uut.irom_addr[11:0]} top.tb_cpu_embedded.uut.irom_addr[11] top.tb_cpu_embedded.uut.irom_addr[10] top.tb_cpu_embedded.uut.irom_addr[9] top.tb_cpu_embedded.uut.irom_addr[8] top.tb_cpu_embedded.uut.irom_addr[7] top.tb_cpu_embedded.uut.irom_addr[6] top.tb_cpu_embedded.uut.irom_addr[5] top.tb_cpu_embedded.uut.irom_addr[4] top.tb_cpu_embedded.uut.irom_addr[3] top.tb_cpu_embedded.uut.irom_addr[2] top.tb_cpu_embedded.uut.irom_addr[1] top.tb_cpu_embedded.uut.irom_addr[0]
+@23
+#{top.tb_cpu_embedded.uut.irom_data[17:0]} top.tb_cpu_embedded.uut.irom_data[17] top.tb_cpu_embedded.uut.irom_data[16] top.tb_cpu_embedded.uut.irom_data[15] top.tb_cpu_embedded.uut.irom_data[14] top.tb_cpu_embedded.uut.irom_data[13] top.tb_cpu_embedded.uut.irom_data[12] top.tb_cpu_embedded.uut.irom_data[11] top.tb_cpu_embedded.uut.irom_data[10] top.tb_cpu_embedded.uut.irom_data[9] top.tb_cpu_embedded.uut.irom_data[8] top.tb_cpu_embedded.uut.irom_data[7] top.tb_cpu_embedded.uut.irom_data[6] top.tb_cpu_embedded.uut.irom_data[5] top.tb_cpu_embedded.uut.irom_data[4] top.tb_cpu_embedded.uut.irom_data[3] top.tb_cpu_embedded.uut.irom_data[2] top.tb_cpu_embedded.uut.irom_data[1] top.tb_cpu_embedded.uut.irom_data[0]
+@22
+#{top.tb_cpu_embedded.xmem_addr[7:0]} top.tb_cpu_embedded.xmem_addr[7] top.tb_cpu_embedded.xmem_addr[6] top.tb_cpu_embedded.xmem_addr[5] top.tb_cpu_embedded.xmem_addr[4] top.tb_cpu_embedded.xmem_addr[3] top.tb_cpu_embedded.xmem_addr[2] top.tb_cpu_embedded.xmem_addr[1] top.tb_cpu_embedded.xmem_addr[0]
+#{top.tb_cpu_embedded.xmem_dout[7:0]} top.tb_cpu_embedded.xmem_dout[7] top.tb_cpu_embedded.xmem_dout[6] top.tb_cpu_embedded.xmem_dout[5] top.tb_cpu_embedded.xmem_dout[4] top.tb_cpu_embedded.xmem_dout[3] top.tb_cpu_embedded.xmem_dout[2] top.tb_cpu_embedded.xmem_dout[1] top.tb_cpu_embedded.xmem_dout[0]
+#{top.tb_cpu_embedded.xmem_din[7:0]} top.tb_cpu_embedded.xmem_din[7] top.tb_cpu_embedded.xmem_din[6] top.tb_cpu_embedded.xmem_din[5] top.tb_cpu_embedded.xmem_din[4] top.tb_cpu_embedded.xmem_din[3] top.tb_cpu_embedded.xmem_din[2] top.tb_cpu_embedded.xmem_din[1] top.tb_cpu_embedded.xmem_din[0]
+[pattern_trace] 1
+[pattern_trace] 0