diff --git a/tools/iq.sv b/tools/iq.sv
new file mode 100644
index 0000000..d9c6e0b
--- /dev/null
+++ b/tools/iq.sv
@@ -0,0 +1,21 @@
+///------ en3 en4
+6'b000000 0   0
+6'b000001 0   0
+6'b000010 0   0
+6'b000011 0   0
+6'b000100 1   0
+6'b000101 0   0
+6'b000110 0   0
+6'b000111 0   0
+6'b001100 1   1
+6'b001101 0   0
+6'b001110 1   0
+6'b001111 0   0
+6'b011100 0   1
+6'b011101 0   0
+6'b011110 1   1
+6'b011111 1   0
+6'b111100 0   0
+6'b111101 0   0
+6'b111110 1   1
+6'b111111 1   1
\ No newline at end of file