73 lines
1.9 KiB
Systemverilog
73 lines
1.9 KiB
Systemverilog
// DESCRIPTION: Verilator: Verilog Test module
|
|
//
|
|
// This file ONLY is placed under the Creative Commons Public Domain.
|
|
// SPDX-FileCopyrightText: 2026 PlanV GmbH
|
|
// SPDX-License-Identifier: CC0-1.0
|
|
|
|
// verilog_format: off
|
|
`define stop $stop;
|
|
`define checkd(gotv,expv) do if ((gotv) !== (expv)) begin $write("%%Error: %s:%0d: got=%0d exp=%0d\n", `__FILE__,`__LINE__, (gotv), (expv)); `stop; end while(0);
|
|
// verilog_format: on
|
|
|
|
// Test std::randomize() with queue and dynamic array variables
|
|
|
|
module t_std_randomize_queue;
|
|
|
|
// Queue variables
|
|
bit [7:0] q8[$];
|
|
bit [31:0] q32[$];
|
|
|
|
// Dynamic array variables
|
|
bit [7:0] dyn8[];
|
|
|
|
int i;
|
|
|
|
initial begin
|
|
// Test 1: std::randomize with queue (no constraints)
|
|
q8 = {8'd0, 8'd0, 8'd0};
|
|
`checkd(std::randomize(q8), 1);
|
|
|
|
// Test 2: std::randomize with queue and constraints
|
|
q8 = {8'd0, 8'd0, 8'd0, 8'd0};
|
|
`checkd(std::randomize(q8) with {
|
|
foreach (q8[j]) q8[j] > 8'd10 && q8[j] < 8'd100;
|
|
}, 1);
|
|
foreach (q8[j]) begin
|
|
if (q8[j] <= 8'd10 || q8[j] >= 8'd100) `stop;
|
|
end
|
|
|
|
// Test 3: std::randomize with 32-bit queue
|
|
q32 = {32'd0, 32'd0, 32'd0};
|
|
`checkd(std::randomize(q32) with {
|
|
foreach (q32[k]) q32[k] < 32'd1000;
|
|
}, 1);
|
|
foreach (q32[k]) begin
|
|
if (q32[k] >= 32'd1000) `stop;
|
|
end
|
|
|
|
// Test 4: std::randomize with dynamic array
|
|
dyn8 = new[3];
|
|
`checkd(std::randomize(dyn8) with {
|
|
foreach (dyn8[m]) dyn8[m] inside {[1:50]};
|
|
}, 1);
|
|
foreach (dyn8[m]) begin
|
|
if (dyn8[m] < 1 || dyn8[m] > 50) `stop;
|
|
end
|
|
|
|
// Test 5: Multiple randomizations produce different values
|
|
q8 = {8'd0, 8'd0, 8'd0};
|
|
begin
|
|
automatic int non_zero = 0;
|
|
repeat (5) begin
|
|
`checkd(std::randomize(q8), 1);
|
|
foreach (q8[n]) if (q8[n] != 0) non_zero++;
|
|
end
|
|
// With 15 random 8-bit values, expect most non-zero
|
|
if (non_zero < 10) `stop;
|
|
end
|
|
|
|
$write("*-* All Finished *-*\n");
|
|
$finish;
|
|
end
|
|
endmodule
|