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+# Max delays from https://pastebin.com/v2hrcksd
+# from https://github.com/SymbiFlow/prjxray/pull/706#issuecomment-479380321
+
+# F7BMUX slower than F7AMUX
+# Inputs: 0 1 S0
+# Outputs: OUT
+F7BMUX 1 0 3 1
+217 223 296
+
+# Inputs: 0 1 S0
+# Outputs: OUT
+MUXF8 2 0 3 1
+104 94 273