1 files changed, 6 insertions, 1 deletions
diff --git a/techlibs/xilinx/abc9_model.v b/techlibs/xilinx/abc9_model.v
index 204fa883f..782c53ab6 100644
--- a/techlibs/xilinx/abc9_model.v
+++ b/techlibs/xilinx/abc9_model.v
@@ -33,6 +33,11 @@ endmodule
 module \$__ABC9_FF_ (input D, output Q);
 endmodule
 
+(* abc9_box_id = (9000+DELAY) *)
+module \$__ABC9_DELAY (input I, output O);
+  parameter DELAY = 0;
+endmodule
+
 // Box to emulate async behaviour of FDC*
 (* abc9_box_id = 1000, lib_whitebox *)
 module \$__ABC9_ASYNC0 (input A, S, output Y);
@@ -42,7 +47,7 @@ endmodule
 // Box to emulate async behaviour of FDP*
 (* abc9_box_id = 1001, lib_whitebox *)
 module \$__ABC9_ASYNC1 (input A, S, output Y);
-  assign Y = S ? 1'b0 : A;
+  assign Y = S ? 1'b1 : A;
 endmodule
 
 // Box to emulate comb/seq behaviour of RAM{32,64} and SRL{16,32}