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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, 2024 by PlanV GmbH.
// SPDX-License-Identifier: CC0-1.0
class constrained_associative_array_basic;
rand int int_index_arr [int];
rand int string_index_arr [string];
rand int string_index_arr_2 [string];
/* verilator lint_off SIDEEFFECT */
// Constraints for both arrays
constraint int_index_constraints {
foreach (int_index_arr[i]) int_index_arr[i] inside {10, 20, 30, 40, 50};
}
constraint string_index_constraints {
string_index_arr["Alice"] == 35;
string_index_arr["Bob"] inside {50, 60};
string_index_arr["Charlie"] > 25;
}
constraint string_index_2_constraints {
foreach (string_index_arr_2[i]) string_index_arr_2[i] > 10; // nodep->bitp() would be VARREF, instead of CVTPACKSTRING
}
// Constructor to initialize arrays
function new();
int_index_arr = '{1: 0, 8: 0, 7: 0};
string_index_arr = '{"Alice": 25, "Bob": 50, "Charlie": 45};
string_index_arr_2 = '{"key1": 15, "key2": 20, "key3": 30};
endfunction
// Function to check and display the arrays
function void self_check();
foreach (int_index_arr[i]) begin
if (!(int_index_arr[i] inside {10, 20, 30, 40, 50})) $stop;
end
foreach (string_index_arr[name]) begin
if ((name == "Alice" && string_index_arr[name] != 35) ||
(name == "Bob" && !(string_index_arr[name] inside {50, 60})) ||
(name == "Charlie" && string_index_arr[name] <= 25)) $stop;
end
foreach (string_index_arr_2[i]) begin
if (string_index_arr_2[i] <= 10) $stop;
end
endfunction
endclass
class constrained_1d_associative_array;
rand int string_index_arr [string];
rand int int_index_arr [int];
rand int shortint_index_arr [shortint];
rand int longint_index_arr[longint];
rand int byte_index_arr [byte];
rand int bit_index_arr [bit[5:0]];
rand int logic_index_arr [logic[3:0]];
rand int bit_index_arr_1 [bit[55:0]];
// Constraints
constraint associative_array_constraints {
string_index_arr["key1"] == 100;
string_index_arr["key2"] inside {200, 300, 400};
int_index_arr[40000] + int_index_arr[2000000000] == 2;
shortint_index_arr[2000] == 200;
longint_index_arr[64'd4000000000] == 300;
byte_index_arr[8'd255] == 50;
bit_index_arr[6'd30] - bit_index_arr_1[56'd66] == 3;
logic_index_arr[4'b0011] == 70;
}
function new();
string_index_arr = '{"key1":0, "key2":0};
int_index_arr = '{40000:0, 2000000000:0};
shortint_index_arr = '{2000:0};
longint_index_arr = '{64'd4000000000:0};
byte_index_arr = '{8'd255:0};
bit_index_arr = '{6'd30:0};
bit_index_arr_1 = '{56'd66:0};
logic_index_arr = '{4'd3:0};
endfunction
function void self_check();
if (string_index_arr["key1"] != 100) $stop;
if (!(string_index_arr["key2"] inside {200, 300, 400})) $stop;
if ((int_index_arr[40000] + int_index_arr[2000000000]) != 2) $stop;
if (shortint_index_arr[2000] != 200) $stop;
if (longint_index_arr[64'd4000000000] != 300) $stop;
if (byte_index_arr[8'd255] != 50) $stop;
if (bit_index_arr[6'd30] - bit_index_arr_1[56'd66] != 3) $stop;
if (logic_index_arr[4'd3] != 70) $stop;
endfunction
function void debug_display();
$display("string_index_arr[\"key1\"] = %0d", string_index_arr["key1"]);
$display("string_index_arr[\"key2\"] = %0d", string_index_arr["key2"]);
$display("int_index_arr[40000] = %0d", int_index_arr[40000]);
$display("int_index_arr[2000000000] = %0d", int_index_arr[2000000000]);
$display("shortint_index_arr[2000] = %0d", shortint_index_arr[2000]);
$display("longint_index_arr[4000000000] = %0d", longint_index_arr[64'd4000000000]);
$display("byte_index_arr[255] = %0d", byte_index_arr[8'd255]);
$display("bit_index_arr[30] = %0d", bit_index_arr[6'd30]);
$display("bit_index_arr_1[66] = %0d", bit_index_arr_1[56'd66]);
$display("logic_index_arr[3] = %0d", logic_index_arr[4'd3]);
endfunction
endclass
class constrained_2d_associative_array;
rand int string_int_index_arr [string][int];
rand int int_bit_index_arr [int][bit[5:0]];
rand int string_bit_index_arr [string][bit[7:0]];
rand int unpacked_assoc_array_2d [string][2];
// Constraints
constraint associative_array_constraints {
string_int_index_arr["key1"][2000] == 100;
string_int_index_arr["key2"][3000] inside {200, 300, 400};
int_bit_index_arr[40000][6'd30] == 60;
int_bit_index_arr[50000][6'd40] inside {100, 200};
string_bit_index_arr["key3"][8'd100] == 150;
string_bit_index_arr["key4"][8'd200] inside {250, 350};
unpacked_assoc_array_2d["key5"][0] == 7;
}
function new();
string_int_index_arr = '{"key1":'{2000:0}, "key2":'{3000:0}};
int_bit_index_arr = '{40000:'{6'd30:0}, 50000:'{6'd40:0}};
string_bit_index_arr = '{"key3":'{8'd100:0}, "key4":'{8'd200:0}};
unpacked_assoc_array_2d["key5"][0] = 0;
unpacked_assoc_array_2d["key5"][1] = 0;
endfunction
function void self_check();
if (string_int_index_arr["key1"][2000] != 100) $stop;
if (!(string_int_index_arr["key2"][3000] inside {200, 300, 400})) $stop;
if (int_bit_index_arr[40000][6'd30] != 60) $stop;
if (!(int_bit_index_arr[50000][6'd40] inside {100, 200})) $stop;
if (string_bit_index_arr["key3"][8'd100] != 150) $stop;
if (!(string_bit_index_arr["key4"][8'd200] inside {250, 350})) $stop;
if (unpacked_assoc_array_2d["key5"][0] != 7) $stop;
endfunction
function void debug_display();
$display("string_int_index_arr[\"key1\"][2000] = %0d", string_int_index_arr["key1"][2000]);
$display("string_int_index_arr[\"key2\"][3000] = %0d", string_int_index_arr["key2"][3000]);
$display("int_bit_index_arr[40000][30] = %0d", int_bit_index_arr[40000][6'd30]);
$display("int_bit_index_arr[50000][40] = %0d", int_bit_index_arr[50000][6'd40]);
$display("string_bit_index_arr[\"key3\"][100] = %0d", string_bit_index_arr["key3"][8'd100]);
$display("string_bit_index_arr[\"key4\"][200] = %0d", string_bit_index_arr["key4"][8'd200]);
$display("unpacked_assoc_array_2d[\"key5\"][0] = %0d", unpacked_assoc_array_2d["key5"][0]);
endfunction
/* verilator lint_off SIDEEFFECT */
endclass
class AssocArray64bitMoreTest;
rand int bit_index_arr [bit[78:0]];
rand int logic_index_arr [logic[64:0]];
constraint c {
bit_index_arr[79'd66] == 65;
logic_index_arr[65'd3] == 70;
}
function new();
bit_index_arr = '{79'd66:0};
logic_index_arr = '{65'd3:0};
endfunction
function void self_check();
if (bit_index_arr[79'd66] != 65) $stop;
if (logic_index_arr[65'd3] != 70) $stop;
endfunction
endclass
module t_constraint_assoc_arr_basic;
constrained_associative_array_basic my_array;
constrained_1d_associative_array my_1d_array;
constrained_2d_associative_array my_2d_array;
AssocArray64bitMoreTest test_obj;
int success;
initial begin
my_array = new();
success = my_array.randomize();
if (success == 0) $stop;
my_array.self_check();
my_1d_array = new();
success = my_1d_array.randomize();
if (success == 0) $stop;
my_1d_array.self_check();
my_2d_array = new();
success = my_2d_array.randomize();
if (success == 0) $stop;
my_2d_array.self_check();
test_obj = new();
repeat(2) begin
success = test_obj.randomize();
if (success != 1) $stop;
end
// my_1d_array.debug_display();
// my_2d_array.debug_display();
$write("*-* All Finished *-*\n");
$finish;
end
endmodule
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