1 files changed, 19 insertions, 0 deletions
diff --git a/techlibs/xilinx/cells.box b/techlibs/xilinx/cells.box
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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 1 3 1
+217 223 296
+
+# Inputs: 0 1 S0
+# Outputs: OUT
+MUXF8 2 1 3 1
+104 94 273
+
+MUXCY 3 1 3 1
+1 1 1
+
+XORCY 4 1 2 1
+1 1