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8bitworkshop/test/cli/verilog/t_param_bit_sel.v

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Verilog

// DESCRIPTION: Verilator: Verilog Test module
//
// We see Verilator assumes a 1-bit parameter is a scalar rather than a 1-bit
// long vector. This causes the following code to fail.
//
// Other event drive simulators accept this.
//
// This file ONLY is placed into the Public Domain, for any use,
// without warranty, 2013 by Jeremy Bennett.
// SPDX-License-Identifier: CC0-1.0
module t (/*AUTOARG*/
// Inputs
clk
);
input clk;
// At this point it is ambiguous whether a is scalar or vector
parameter a = 1'b0;
wire b = a[0];
// Note however b[0] is illegal.
always @(posedge clk) begin
if (b == 1'b0) begin
$write("*-* All Finished *-*\n");
$finish;
end
else begin
$stop;
end
end
endmodule