tb: Add dumpfilename macro

1 files changed, 7 insertions, 1 deletions

diff --git a/debounce.tb.v b/debounce.tb.v
index 6bf17fa..f95bd9b 100644
--- a/debounce.tb.v
+++ b/debounce.tb.v
@@ -17,8 +17,14 @@ debounce #(.STABLE_PERIOD(5)) uut(
   .signal_o(signal_o)
 );
 
+string filename;
 initial begin
-  $dumpfile("debounce.lxt2"); $dumpvars();
+`ifdef DUMP_FILE_NAME
+  filename=`DUMP_FILE_NAME;
+`else
+  filename="debounce.lxt2";
+`endif
+  $dumpfile(filename); $dumpvars();
 
   clk_i <= 0;
   rst_i <= 1'b1;