107 lines
2.3 KiB
Verilog
107 lines
2.3 KiB
Verilog
// Copyright (c) 2016 CERN
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// Maciej Suminski <maciej.suminski@cern.ch>
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//
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// This source code is free software; you can redistribute it
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// and/or modify it in source code form under the terms of the GNU
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// General Public License as published by the Free Software
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// Foundation; either version 2 of the License, or (at your option)
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// any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program; if not, write to the Free Software
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// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
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// Test different ways of accessing a 2D packed array.
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module array_packed_2d();
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reg [1:4][7:0] vec;
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reg [4:1][7:0] vec2;
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integer i;
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initial begin
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// test 1: assign using variable index
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for(i = 1; i <= 4; i = i + 1)
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vec[i] = i * 2;
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// display whole vector
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$display("%h", vec);
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// $display using variable index
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for(i = 1; i <= 4; i = i + 1)
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$display(vec[i]);
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// $display using constant index
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$display(vec[1]);
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$display(vec[2]);
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$display(vec[3]);
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$display(vec[4]);
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// test 2: assign using a constant index
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vec[1] = 2;
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vec[2] = 4;
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vec[3] = 6;
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vec[4] = 8;
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// display whole vector
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$display("%h", vec);
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// $display using variable index
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for(i = 1; i <= 4; i = i + 1)
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$display(vec[i]);
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// $display using constant index
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$display(vec[1]);
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$display(vec[2]);
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$display(vec[3]);
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$display(vec[4]);
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//////////////////////////////////////////
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// test 1: assign using variable index
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for(i = 1; i <= 4; i = i + 1)
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vec2[i] = i * 2;
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// display whole vector
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$display("%h", vec2);
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// $display using variable index
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for(i = 1; i <= 4; i = i + 1)
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$display(vec2[i]);
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// $display using constant index
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$display(vec2[1]);
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$display(vec2[2]);
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$display(vec2[3]);
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$display(vec2[4]);
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// test 2: assign using a constant index
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vec2[1] = 2;
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vec2[2] = 4;
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vec2[3] = 6;
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vec2[4] = 8;
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// display whole vector
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$display("%h", vec2);
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// $display using variable index
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for(i = 1; i <= 4; i = i + 1)
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$display(vec2[i]);
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// $display using constant index
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$display(vec2[1]);
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$display(vec2[2]);
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$display(vec2[3]);
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$display(vec2[4]);
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end
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endmodule
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