Merge pull request #425 from udif/udif_dollar_bits

Add $bits() and $size()

1 files changed, 32 insertions, 0 deletions

diff --git a/tests/simple/functions01.sv b/tests/simple/functions01.sv
new file mode 100644
index 000000000..d7ce2326e
--- /dev/null
+++ b/tests/simple/functions01.sv
@@ -0,0 +1,32 @@
+module functions01;
+
+wire [5:2]x;
+wire [3:0]y[2:7];
+wire [3:0]z[7:2][2:9];
+
+//wire [$size(x)-1:0]x_size;
+//wire [$size({x, x})-1:0]xx_size;
+//wire [$size(y)-1:0]y_size;
+//wire [$size(z)-1:0]z_size;
+
+assert property ($size(x) == 4);
+assert property ($size({3{x}}) == 3*4);
+assert property ($size(y) == 6);
+assert property ($size(y, 1) == 6);
+assert property ($size(y, (1+1)) == 4);
+
+assert property ($size(z) == 6);
+assert property ($size(z, 1) == 6);
+assert property ($size(z, 2) == 8);
+assert property ($size(z, 3) == 4);
+// This should trigger an error if enabled (it does).
+//assert property ($size(z, 4) == 4);
+
+//wire [$bits(x)-1:0]x_bits;
+//wire [$bits({x, x})-1:0]xx_bits;
+
+assert property ($bits(x) == 4);
+assert property ($bits(y) == 4*6);
+assert property ($bits(z) == 4*6*8);
+
+endmodule