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module AnalogReaderBlackBox(
inout [31:0] bus,
output [31:0] out
);
assign bus = 32'dz;
assign out = bus;
endmodule
module AnalogWriterBlackBox(
inout [31:0] bus,
input [31:0] in
);
assign bus = in;
endmodule
module AnalogBlackBox #(
parameter index=0
) (
inout [31:0] bus,
input port_0_in_valid,
input [31:0] port_0_in_bits,
output [31:0] port_0_out
);
assign port_0_out = bus;
assign bus = (port_0_in_valid)? port_0_in_bits + index : 32'dZ;
endmodule
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