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Test for bug349

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This commit is contained in:
Wilson Snyder
2012-08-08 22:15:07 -04:00
parent 5f9810070d
commit d5fcf0c153
1 changed files with 9 additions and 0 deletions
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test_regress/t/t_math_signed.v
+9
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@@ -53,6 +53,11 @@ module t (/*AUTOARG*/
// verilator lint_on WIDTH
end
reg signed [32:0] bug349;
initial
begin
end
integer i;
initial begin
if ((-1 >>> 3) != -1) $stop; // Decimals are signed
@@ -81,6 +86,10 @@ module t (/*AUTOARG*/
i = -'sd12 /3; if (i !== 32'hfffffffc) $stop;
i = -4'sd12 /3; if (i !== 32'h00000001) $stop;
// verilator lint_on WIDTH
// verilator lint_off WIDTH
bug349 = 4'sb1111 - 1'b1;
if (bug349 != 32'he) $stop;
end
function signed [15:0] copy_signed;