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