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-rw-r--r--nandgame/cond_check.sv5
1 files changed, 5 insertions, 0 deletions
diff --git a/nandgame/cond_check.sv b/nandgame/cond_check.sv
index dc9d334..d5344ba 100644
--- a/nandgame/cond_check.sv
+++ b/nandgame/cond_check.sv
@@ -2,6 +2,9 @@
`timescale 1us/1us
+`ifndef NANDGAME_CONDC
+`define NANDGAME_CONDC
+
module cond_check #(
parameter DATA_WIDTH = 16
) (
@@ -21,3 +24,5 @@ assign eqr = eqz && (X == 0);
assign res = ltr || gtr || eqr;
endmodule
+
+`endif