How do you plan to solve it?
module vector_splitter (input [7:0] in_vec, output [3:0] out1, output [1:0] out2, output out3, output out4); assign out1 = in_vec[7:4]; assign out2 = in_vec[3:2]; assign out3 = in_vec[1]; assign out4 = in_vec[0]; endmodule