moved usrp1 and usrp2 fpga dirs into fpga subdirectory

1 files changed, 16 insertions, 0 deletions

diff --git a/fpga/usrp2/control_lib/mux4.v b/fpga/usrp2/control_lib/mux4.v
new file mode 100644
index 000000000..31c85c832
--- /dev/null
+++ b/fpga/usrp2/control_lib/mux4.v
@@ -0,0 +1,16 @@
+
+
+module mux4
+  #(parameter WIDTH=32, parameter DISABLED=0)
+    (input en,
+     input [1:0] sel,
+     input [WIDTH-1:0] i0,
+     input [WIDTH-1:0] i1,
+     input [WIDTH-1:0] i2,
+     input [WIDTH-1:0] i3,
+     output [WIDTH-1:0] o);
+
+   assign 		o = en ? (sel[1] ? (sel[0] ? i3 : i2) : (sel[0] ? i1 : i0)) :
+			DISABLED;
+   
+endmodule // mux4