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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, 2020 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);
`define checks(gotv,expv) do if ((gotv) != (expv)) begin $write("%%Error: %s:%0d: got='%s' exp='%s'\n", `__FILE__,`__LINE__, (gotv), (expv)); `stop; end while(0);
`define checkp(gotv,expv_s) do begin string gotv_s; gotv_s = $sformatf("%p", gotv); if ((gotv_s) != (expv_s)) begin $write("%%Error: %s:%0d: got='%s' exp='%s'\n", `__FILE__,`__LINE__, (gotv_s), (expv_s)); `stop; end end while(0);
module t (/*AUTOARG*/
// Inputs
clk
);
input clk;
integer cyc = 0;
integer i;
// verilator lint_off UNUSED
integer unused[];
// verilator lint_on UNUSED
typedef bit [7:0] byte_t;
byte_t a[];
byte_t b[];
// wide data array
typedef struct packed {
logic [15:0] header;
logic [223:0] payload;
logic [15:0] checksum;
} pck256_t;
pck256_t p256[];
string s[] = { "hello", "sad", "world" };
always @ (posedge clk) begin
cyc <= cyc + 1;
begin
`checkh(a.size, 0);
`checkp(a, "'{}");
`checkh(s.size, 3);
`checks(s[0], "hello");
`checks(s[1], "sad");
`checks(s[2], "world");
a = new [3];
`checkh(a.size, 3);
a[0] = 10;
a[1] = 11;
a[2] = 12;
`checkh(a[0], 10);
`checkh(a[1], 11);
`checkh(a[2], 12);
`checkp(a, "'{'ha, 'hb, 'hc} ");
a.delete;
`checkh(a.size, 0);
a = '{15, 16};
`checkh(a.size, 2);
`checkh(a[0], 15);
`checkh(a[1], 16)
a = {17, 18};
`checkh(a.size, 2);
`checkh(a[0], 17);
`checkh(a[1], 18)
a = '{17};
`checkh(a.size, 1); // IEEE says resizes to smallest that fits pattern
`checkh(a[0], 17);
a = new[2];
a[0] = 5;
a[1] = 6;
`checkh(a[0], 5);
`checkh(a[1], 6);
a = new[2];
`ifdef verilator // bug2618
a[0] = 0;
a[1] = 0;
`endif
`checkh(a[0], 0);
`checkh(a[1], 0);
a[0] = 5;
a[1] = 6;
`checkh(a[0], 5);
`checkh(a[1], 6);
b = new [4](a);
`checkh(b.size, 4);
`checkh(b[0], 5);
`checkh(b[1], 6);
`ifdef verilator // bug2618
b[2] = 0;
b[3] = 0;
`endif
`checkh(b[2], 0);
`checkh(b[3], 0);
a = b;
`checkh(a.size, 4);
`checkh(a[0], 5);
`checkh(a[1], 6);
`checkh(a[2], 0);
`checkh(a[3], 0);
a = new [0];
`checkh(a.size, 0);
b = new [4](a);
`checkh(b.size, 4);
`ifdef verilator // bug2618
b[0] = 0;
b[1] = 0;
b[2] = 0;
b[3] = 0;
`endif
`checkh(b[0], 0);
`checkh(b[1], 0);
`checkh(b[2], 0);
`checkh(b[3], 0);
a = new[4] ('{8'd1,8'd2,8'd3,8'd4});
`checkh(a.size, 4);
`checkh(a[0], 1);
`checkh(a[1], 2);
`checkh(a[2], 3);
`checkh(a[3], 4);
i = 0;
foreach (a[j]) i += int'(a[j]);
`checkh(i, 1 + 2 + 3 + 4);
// test wide dynamic array
p256 = new [11];
`checkh(p256.size, 11);
`checkh(p256.size(), 11);
p256[1].header = 16'hcafe;
p256[1].payload = {14{16'hbabe}};
p256[1].checksum = 16'hdead;
`checkh(p256[1].header, 16'hcafe);
`checkh(p256[1], {16'hcafe,{14{16'hbabe}},16'hdead});
//X's: `checkh(p256[0], 'x);
p256[5] = '1;
`checkh(p256[5], {32{8'hff}});
p256[5].header = 16'h2;
`checkh(p256[5], {16'h2,{30{8'hff}}});
p256[2] = ( p256[5].header == 2 ) ? p256[1] : p256[5];
`checkh(p256[2], {16'hcafe,{14{16'hbabe}},16'hdead});
p256.delete();
`checkh(p256.size, 0);
end
$write("*-* All Finished *-*\n");
$finish;
end
endmodule
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