26 lines
621 B
Systemverilog
26 lines
621 B
Systemverilog
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// Unconstrained class.randomize() / rand vertical slice smoke test.
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class pkt;
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rand bit [7:0] a;
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rand bit [3:0] b;
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bit [7:0] c;
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function new();
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c = 8'h11;
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endfunction
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endclass
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module top;
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pkt p;
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bit ok;
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initial begin
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p = new;
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ok = p.randomize();
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if (!ok) $fatal(1, "randomize failed");
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// a,b should be randomized (not X); c unchanged
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if (p.a === 8'hxx) $fatal(1, "rand a still X");
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if (p.b === 4'hx) $fatal(1, "rand b still X");
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if (p.c !== 8'h11) $fatal(1, "non-rand mutated");
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$display("a=%0h b=%0h c=%0h", p.a, p.b, p.c);
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$display("PASSED");
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end
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endmodule
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