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// DESCRIPTION: Verilator: Test of select from constant
//
// This file ONLY is placed under the Creative Commons Public Domain, for
// any use, without warranty, 2024 by Wilson Snyder.
// SPDX-License-Identifier: CC0-1.0
`define stop $stop
`define checkh(gotv,expv) do if ((gotv) !== (expv)) begin $write("%%Error: %s:%0d: got='h%x exp='h%x\n", `__FILE__,`__LINE__, (gotv), (expv)); `stop; end while(0)
module t;
reg clk = 0;
always #50 clk = ~clk;
initial begin
#1000;
$write("*-* All Finished *-*\n");
$finish;
end
int cyc = 0;
always @(posedge clk) cyc <= cyc + 1;
localparam SIZE = 65536;
// Case 1: Array NBA inside suspendable
int array1 [SIZE];
always @ (posedge clk) begin
#1;
for (int i=0; i<SIZE; i++) array1[i] <= cyc + i;
if (cyc > 1) begin
for (int i=0; i<SIZE; i++) `checkh(array1[i], cyc - 1 + i);
end
#1;
for (int i=0; i<SIZE; i++) `checkh(array1[i], cyc + i);
end
// Case 2: Array NBA to array also assigned in suspendable
int array2 [SIZE];
always @ (posedge clk) begin
for (int i=0; i<SIZE; i++) array2[i] <= cyc + i;
end
always @(posedge clk) begin
#2 array2[1] <= 1111;
#2 array2[3] <= 3333;
#2 array2[5] <= 5555;
end
initial begin
@(posedge clk);
@(posedge clk);
@(posedge clk);
#1;
for (int i=0; i<SIZE; i++) `checkh(array2[i], cyc - 1 + i);
#2;
for (int i=0; i<SIZE; i++) `checkh(array2[i], i == 1 ? 1111 : cyc - 1 + i);
#2;
for (int i=0; i<SIZE; i++) `checkh(array2[i], i == 1 ? 1111 : i == 3 ? 3333 : cyc - 1 + i);
#2;
for (int i=0; i<SIZE; i++) `checkh(array2[i], i == 1 ? 1111 : i == 3 ? 3333 : i == 5 ? 5555 : cyc - 1 + i);
end
endmodule
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