56c86c13ca
* #10 CGP Circuits as inputs (#11) * CGP Circuits as inputs * #10 support of signed output in general circuit * input as output works * output connected to input (c) * automated verilog testing * output rename * Implemented CSA and Wallace tree multiplier composing of CSAs. Also did some code cleanup. * Typos fix and code cleanup. * Added new (approximate) multiplier architectures and did some minor changes regarding sign extension for c output formats. * Updated automated testing scripts. * Small bugfix in python code generation (I initially thought this line is useless). * Updated generated circuits folder. Co-authored-by: Vojta Mrazek <mrazek@fit.vutbr.cz>
33 lines
736 B
Verilog
33 lines
736 B
Verilog
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`timescale 1 ns/10 ps // time-unit = 1 ns, precision = 10 ps
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module mul_unsigned_tb;
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reg signed [7:0] a;
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reg signed [7:0] b;
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wire signed [15:0] o;
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integer k, j;
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localparam period = 20;
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`dut dut(a, b, o); //.input_a(a), .input_b(b), .cgp_circuit_out(o));
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always
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begin
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for(k = -127; k < 128; k = k+1) begin
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for(j = -127; j < 128; j = j+1) begin
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assign a = k;
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assign b = j;
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#period;
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//$assert(b == 0);
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if ( k * j != o) begin
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$display("Invalid output: %d * %d = %d", a, b, o);
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end
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end;
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end;
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$finish;
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end
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endmodule |