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8bitworkshop/presets/verilog/gates.v

19 lines
364 B
Verilog

module gates(clk, out_not, out_and, out_or, out_xor, in);
input clk;
output out_not, out_and, out_or, out_xor;
output reg [3:0] in;
not U1(out_not,in[0]);
and U2(out_and,in[0],in[1],in[2],in[3]);
or U3(out_or,in[0],in[1],in[2],in[3]);
xor U4(out_xor,in[0],in[1],in[2]);
always @(posedge clk) begin
in <= in + 1;
end
endmodule