mirror of
https://github.com/steveicarus/iverilog.git
synced 2026-08-28 16:53:45 +02:00
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.
124 lines
3.2 KiB
Verilog
124 lines
3.2 KiB
Verilog
// Check behaviour with out-of-range and undefined array indices
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// on LHS of blocking procedural assignment.
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`ifdef __ICARUS__
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`define SUPPORT_CONST_OUT_OF_RANGE_IN_IVTEST
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`endif
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module top;
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reg array1[2:1];
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reg array2[1:0];
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`ifndef VLOG95
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real array3[2:1];
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real array4[1:0];
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`endif
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integer index;
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reg failed;
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initial begin
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failed = 0;
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array1[1] = 1'b0;
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array1[2] = 1'b0;
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`ifdef SUPPORT_CONST_OUT_OF_RANGE_IN_IVTEST
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array1[0] = 1'b1; // Constant out of bounds select may be an error
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`endif
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$display("array = %b %b", array1[2], array1[1]);
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if ((array1[1] !== 1'b0) || (array1[2] !== 1'b0)) failed = 1;
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array1[1] = 1'b0;
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array1[2] = 1'b0;
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`ifdef SUPPORT_CONST_OUT_OF_RANGE_IN_IVTEST
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array1[3] = 1'b1; // Constant out of bounds select may be an error
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`endif
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$display("array = %b %b", array1[2], array1[1]);
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if ((array1[1] !== 1'b0) || (array1[2] !== 1'b0)) failed = 1;
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array2[0] = 1'b0;
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array2[1] = 1'b0;
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`ifdef SUPPORT_CONST_OUT_OF_RANGE_IN_IVTEST
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array2['bx] = 1'b1; // Constant undefined out of bounds select may be an error
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`endif
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$display("array = %b %b", array2[1], array2[0]);
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if ((array2[0] !== 1'b0) || (array2[1] !== 1'b0)) failed = 1;
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index = 0;
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array1[1] = 1'b0;
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array1[2] = 1'b0;
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array1[index] = 1'b1;
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$display("array = %b %b", array1[2], array1[1]);
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if ((array1[1] !== 1'b0) || (array1[2] !== 1'b0)) failed = 1;
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index = 3;
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array1[1] = 1'b0;
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array1[2] = 1'b0;
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array1[index] = 1'b1;
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$display("array = %b %b", array1[2], array1[1]);
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if ((array1[1] !== 1'b0) || (array1[2] !== 1'b0)) failed = 1;
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index = 'bx;
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array2[0] = 1'b0;
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array2[1] = 1'b0;
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array2[index] = 1'b1;
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$display("array = %b %b", array2[1], array2[0]);
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if ((array2[0] !== 1'b0) || (array2[1] !== 1'b0)) failed = 1;
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`ifndef VLOG95
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array3[1] = 0.0;
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array3[2] = 0.0;
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`ifdef SUPPORT_CONST_OUT_OF_RANGE_IN_IVTEST
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array3[0] = 1.0; // Constant out of bounds select may be an error
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`endif
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$display("array = %0g %0g", array3[2], array3[1]);
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if ((array3[1] != 0.0) || (array3[2] != 0.0)) failed = 1;
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array3[1] = 0.0;
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array3[2] = 0.0;
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`ifdef SUPPORT_CONST_OUT_OF_RANGE_IN_IVTEST
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array3[3] = 1.0; // Constant out of bounds select may be an error
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`endif
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$display("array = %0g %0g", array3[2], array3[1]);
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if ((array3[1] != 0.0) || (array3[2] != 0.0)) failed = 1;
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array4[0] = 0.0;
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array4[1] = 0.0;
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`ifdef SUPPORT_CONST_OUT_OF_RANGE_IN_IVTEST
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array4['bx] = 1.0; // Constant undefined out of bounds select may be an error
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`endif
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$display("array = %0g %0g", array4[1], array4[0]);
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if ((array4[0] != 0.0) || (array4[1] != 0.0)) failed = 1;
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index = 0;
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array3[1] = 0.0;
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array3[2] = 0.0;
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array3[index] = 1.0;
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$display("array = %0g %0g", array3[2], array3[1]);
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if ((array3[1] != 0.0) || (array3[2] != 0.0)) failed = 1;
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index = 3;
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array3[1] = 0.0;
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array3[2] = 0.0;
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array3[index] = 1.0;
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$display("array = %0g %0g", array3[2], array3[1]);
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if ((array3[1] != 0.0) || (array3[2] != 0.0)) failed = 1;
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index = 'bx;
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array4[0] = 0.0;
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array4[1] = 0.0;
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array4[index] = 1.0;
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$display("array = %0g %0g", array4[1], array4[0]);
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if ((array4[0] != 0.0) || (array4[1] != 0.0)) failed = 1;
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`endif
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if (failed)
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$display("FAILED");
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else
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$display("PASSED");
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end
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endmodule
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