mirror of
https://github.com/steveicarus/iverilog.git
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Stephen Williams
cea237b407
By adding ivtest to the iverilog source tree, it is easier to keep the regression test synchronized with the source that is being tested. This should be especially helpful for PRs that add a new feature, and have a matching ivtest PR with the regression test for that feature.
104 lines
8.0 KiB
Verilog
104 lines
8.0 KiB
Verilog
// This tests system functions operationg on packed arrays
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//
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// This file ONLY is placed into the Public Domain, for any use,
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// without warranty, 2012 by Iztok Jeras.
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module test ();
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// parameters for array sizes
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localparam WA = 4;
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localparam WB = 6;
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localparam WC = 8;
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function int wdt (input int i);
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wdt = 2 + 2*i;
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endfunction
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// 2D packed arrays
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logic [WA-1:0] [WB-1:0] [WC-1:0] abg; // big endian array
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logic [0:WA-1] [0:WB-1] [0:WC-1] alt; // little endian array
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// error counter
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bit err = 0;
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// indexing variable
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int i;
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initial begin
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// big endian
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// full array
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if ($dimensions(abg) != 3) begin $display("FAILED -- $dimensions(abg) = %0d", $dimensions(abg)); err=1; end;
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if ($bits (abg) != WA*WB*WC) begin $display("FAILED -- $bits (abg) = %0d", $bits (abg)); err=1; end;
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for (i=1; i<=3; i=i+1) begin
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if ($left (abg , i) != wdt(i )-1) begin $display("FAILED -- $left (abg , %0d) = %0d", i, $left (abg , i)); err=1; end;
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if ($right (abg , i) != 0 ) begin $display("FAILED -- $right (abg , %0d) = %0d", i, $right (abg , i)); err=1; end;
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if ($low (abg , i) != 0 ) begin $display("FAILED -- $low (abg , %0d) = %0d", i, $low (abg , i)); err=1; end;
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if ($high (abg , i) != wdt(i )-1) begin $display("FAILED -- $high (abg , %0d) = %0d", i, $high (abg , i)); err=1; end;
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if ($increment(abg , i) != 1 ) begin $display("FAILED -- $increment(abg , %0d) = %0d", i, $increment(abg , i)); err=1; end;
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if ($size (abg , i) != wdt(i ) ) begin $display("FAILED -- $size (abg , %0d) = %0d", i, $size (abg , i)); err=1; end;
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end
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// half array
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if ($dimensions(abg[1:0]) != 3) begin $display("FAILED -- $dimensions(abg[1:0]) = %0d", $dimensions(abg[1:0])); err=1; end;
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if ($bits (abg[1:0]) != 2*WB*WC) begin $display("FAILED -- $bits (abg[1:0]) = %0d", $bits (abg[1:0])); err=1; end;
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for (i=1; i<=3; i=i+1) begin
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if ($left (abg[1:0], i) != wdt(i )-1) begin $display("FAILED -- $left (abg[1:0], %0d) = %0d", i, $left (abg[1:0], i)); err=1; end;
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if ($right (abg[1:0], i) != 0 ) begin $display("FAILED -- $right (abg[1:0], %0d) = %0d", i, $right (abg[1:0], i)); err=1; end;
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if ($low (abg[1:0], i) != 0 ) begin $display("FAILED -- $low (abg[1:0], %0d) = %0d", i, $low (abg[1:0], i)); err=1; end;
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if ($high (abg[1:0], i) != wdt(i )-1) begin $display("FAILED -- $high (abg[1:0], %0d) = %0d", i, $high (abg[1:0], i)); err=1; end;
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if ($increment(abg[1:0], i) != 1 ) begin $display("FAILED -- $increment(abg[1:0], %0d) = %0d", i, $increment(abg[1:0], i)); err=1; end;
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if ($size (abg[1:0], i) != wdt(i ) ) begin $display("FAILED -- $size (abg[1:0], %0d) = %0d", i, $size (abg[1:0], i)); err=1; end;
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end
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// single array element
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if ($dimensions(abg[0]) != 2) begin $display("FAILED -- $dimensions(abg[0]) = %0d", $dimensions(abg[0])); err=1; end;
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if ($bits (abg[0]) != WB*WC) begin $display("FAILED -- $bits (abg[0]) = %0d", $bits (abg[0])); err=1; end;
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for (i=1; i<=2; i=i+1) begin
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if ($left (abg[0] , i) != wdt(i+1)-1) begin $display("FAILED -- $left (abg[0] , %0d) = %0d", i, $left (abg[0] , i)); err=1; end;
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if ($right (abg[0] , i) != 0 ) begin $display("FAILED -- $right (abg[0] , %0d) = %0d", i, $right (abg[0] , i)); err=1; end;
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if ($low (abg[0] , i) != 0 ) begin $display("FAILED -- $low (abg[0] , %0d) = %0d", i, $low (abg[0] , i)); err=1; end;
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if ($high (abg[0] , i) != wdt(i+1)-1) begin $display("FAILED -- $high (abg[0] , %0d) = %0d", i, $high (abg[0] , i)); err=1; end;
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if ($increment(abg[0] , i) != 1 ) begin $display("FAILED -- $increment(abg[0] , %0d) = %0d", i, $increment(abg[0] , i)); err=1; end;
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if ($size (abg[0] , i) != wdt(i+1) ) begin $display("FAILED -- $size (abg[0] , %0d) = %0d", i, $size (abg[0] , i)); err=1; end;
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end
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// little endian
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// full array
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if ($dimensions(alt) != 3) begin $display("FAILED -- $dimensions(alt) = %0d", $dimensions(alt)); err=1; end;
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if ($bits (alt) != WA*WB*WC) begin $display("FAILED -- $bits (alt) = %0d", $bits (alt)); err=1; end;
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for (i=1; i<=3; i=i+1) begin
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if ($left (alt , i) != 0 ) begin $display("FAILED -- $left (alt , %0d) = %0d", i, $left (alt , i)); err=1; end;
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if ($right (alt , i) != wdt(i )-1) begin $display("FAILED -- $right (alt , %0d) = %0d", i, $right (alt , i)); err=1; end;
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if ($low (alt , i) != 0 ) begin $display("FAILED -- $low (alt , %0d) = %0d", i, $low (alt , i)); err=1; end;
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if ($high (alt , i) != wdt(i )-1) begin $display("FAILED -- $high (alt , %0d) = %0d", i, $high (alt , i)); err=1; end;
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if ($increment(alt , i) != -1 ) begin $display("FAILED -- $increment(alt , %0d) = %0d", i, $increment(alt , i)); err=1; end;
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if ($size (alt , i) != wdt(i ) ) begin $display("FAILED -- $size (alt , %0d) = %0d", i, $size (alt , i)); err=1; end;
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end
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// half array
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if ($dimensions(alt[0:1]) != 3) begin $display("FAILED -- $dimensions(alt[0:1]) = %0d", $dimensions(alt[0:1])); err=1; end;
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if ($bits (alt[0:1]) != 2*WB*WC) begin $display("FAILED -- $bits (alt[0:1]) = %0d", $bits (alt[0:1])); err=1; end;
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for (i=1; i<=3; i=i+1) begin
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if ($left (alt[0:1], i) != 0 ) begin $display("FAILED -- $left (alt[0:1], %0d) = %0d", i, $left (alt[0:1], i)); err=1; end;
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if ($right (alt[0:1], i) != wdt(i )-1) begin $display("FAILED -- $right (alt[0:1], %0d) = %0d", i, $right (alt[0:1], i)); err=1; end;
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if ($low (alt[0:1], i) != 0 ) begin $display("FAILED -- $low (alt[0:1], %0d) = %0d", i, $low (alt[0:1], i)); err=1; end;
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if ($high (alt[0:1], i) != wdt(i )-1) begin $display("FAILED -- $high (alt[0:1], %0d) = %0d", i, $high (alt[0:1], i)); err=1; end;
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if ($increment(alt[0:1], i) != -1 ) begin $display("FAILED -- $increment(alt[0:1], %0d) = %0d", i, $increment(alt[0:1], i)); err=1; end;
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if ($size (alt[0:1], i) != wdt(i ) ) begin $display("FAILED -- $size (alt[0:1], %0d) = %0d", i, $size (alt[0:1], i)); err=1; end;
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end
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// single array element
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if ($dimensions(alt[0]) != 2) begin $display("FAILED -- $dimensions(alt) = %0d", $dimensions(alt)); err=1; end;
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if ($bits (alt[0]) != WB*WC) begin $display("FAILED -- $bits (alt) = %0d", $bits (alt)); err=1; end;
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for (i=1; i<=2; i=i+1) begin
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if ($left (alt[0] , i) != 0 ) begin $display("FAILED -- $left (alt[0] , %0d) = %0d", i, $left (alt[0] , i)); err=1; end;
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if ($right (alt[0] , i) != wdt(i+1)-1) begin $display("FAILED -- $right (alt[0] , %0d) = %0d", i, $right (alt[0] , i)); err=1; end;
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if ($low (alt[0] , i) != 0 ) begin $display("FAILED -- $low (alt[0] , %0d) = %0d", i, $low (alt[0] , i)); err=1; end;
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if ($high (alt[0] , i) != wdt(i+1)-1) begin $display("FAILED -- $high (alt[0] , %0d) = %0d", i, $high (alt[0] , i)); err=1; end;
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if ($increment(alt[0] , i) != -1 ) begin $display("FAILED -- $increment(alt[0] , %0d) = %0d", i, $increment(alt[0] , i)); err=1; end;
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if ($size (alt[0] , i) != wdt(i+1) ) begin $display("FAILED -- $size (alt[0] , %0d) = %0d", i, $size (alt[0] , i)); err=1; end;
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end
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if (!err) $display("PASSED");
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end
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endmodule // test
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