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diff --git a/usrp2/fpga/control_lib/mux8.v b/usrp2/fpga/control_lib/mux8.v
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+
+
+module mux8
+ #(parameter WIDTH=32, parameter DISABLED=0)
+ (input en,
+ input [2:0] sel,
+ input [WIDTH-1:0] i0,
+ input [WIDTH-1:0] i1,
+ input [WIDTH-1:0] i2,
+ input [WIDTH-1:0] i3,
+ input [WIDTH-1:0] i4,
+ input [WIDTH-1:0] i5,
+ input [WIDTH-1:0] i6,
+ input [WIDTH-1:0] i7,
+ output [WIDTH-1:0] o);
+
+ assign o = en ? (sel[2] ? (sel[1] ? (sel[0] ? i7 : i6) : (sel[0] ? i5 : i4)) :
+ (sel[1] ? (sel[0] ? i3 : i2) : (sel[0] ? i1 : i0))) :
+ DISABLED;
+
+endmodule // mux8