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-rw-r--r--tests/simple_abc9/abc9.v7
1 files changed, 6 insertions, 1 deletions
diff --git a/tests/simple_abc9/abc9.v b/tests/simple_abc9/abc9.v
index e5837d480..688b47586 100644
--- a/tests/simple_abc9/abc9.v
+++ b/tests/simple_abc9/abc9.v
@@ -213,8 +213,13 @@ module arbiter (clk, rst, request, acknowledge, grant, grant_valid, grant_encode
input rst;
endmodule
-(* abc9_box_id=1, whitebox *)
+(* abc9_box, blackbox *)
module MUXF8(input I0, I1, S, output O);
+specify
+ (I0 => O) = 0;
+ (I1 => O) = 0;
+ (S => O) = 0;
+endspecify
endmodule
// Citation: https://github.com/alexforencich/verilog-ethernet