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// DESCRIPTION: Verilator: Verilog Test module
//
// This file ONLY is placed under the Creative Commons Public Domain, for
// any use, without warranty, 2004 by Wilson Snyder.
// SPDX-License-Identifier: CC0-1.0
module t (/*AUTOARG*/
// Inputs
clk
);
input clk;
integer cyc; initial cyc=1;
integer j;
reg [63:0] cam_lookup_hit_vector;
integer hit_count;
always @(/*AUTOSENSE*/cam_lookup_hit_vector) begin
hit_count = 0;
for (j=0; j < 64; j=j+1) begin
hit_count = hit_count + {31'h0, cam_lookup_hit_vector[j]};
end
end
integer hit_count2;
always @(/*AUTOSENSE*/cam_lookup_hit_vector) begin
hit_count2 = 0;
for (j=63; j >= 0; j=j-1) begin
hit_count2 = hit_count2 + {31'h0, cam_lookup_hit_vector[j]};
end
end
integer hit_count3;
always @(/*AUTOSENSE*/cam_lookup_hit_vector) begin
hit_count3 = 0;
for (j=63; j > 0; j=j-1) begin
if (cam_lookup_hit_vector[j]) hit_count3 = hit_count3 + 32'd1;
end
end
reg [127:0] wide_for_index;
reg [31:0] wide_for_count;
always @(/*AUTOSENSE*/cam_lookup_hit_vector) begin
wide_for_count = 0;
for (wide_for_index = 128'hff_00000000_00000000;
wide_for_index < 128'hff_00000000_00000100;
wide_for_index = wide_for_index + 2) begin
wide_for_count = wide_for_count+32'h1;
end
end
// While loop
integer w;
initial begin
while (w<10) w=w+1;
if (w!=10) $stop;
while (w<20) begin w=w+2; end
while (w<20) begin w=w+99999; end // NEVER
if (w!=20) $stop;
end
// Do-While loop
integer dw;
initial begin
do dw=dw+1; while (dw<10);
if (dw!=10) $stop;
do dw=dw+2; while (dw<20);
if (dw!=20) $stop;
do dw=dw+5; while (dw<20); // Once
if (dw!=25) $stop;
end
always @ (posedge clk) begin
cam_lookup_hit_vector <= 0;
if (cyc!=0) begin
cyc <= cyc + 1;
if (cyc==1) begin
cam_lookup_hit_vector <= 64'h00010000_00010000;
end
if (cyc==2) begin
if (hit_count != 32'd2) $stop;
if (hit_count2 != 32'd2) $stop;
if (hit_count3 != 32'd2) $stop;
cam_lookup_hit_vector <= 64'h01010010_00010001;
end
if (cyc==3) begin
if (hit_count != 32'd5) $stop;
if (hit_count2 != 32'd5) $stop;
if (hit_count3 != 32'd4) $stop;
if (wide_for_count != 32'h80) $stop;
end
if (cyc==9) begin
$write("*-* All Finished *-*\n");
$finish;
end
end
end
endmodule
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