MUXF78 -> $__MUXF78 to indicate internal

diff --git a/techlibs/xilinx/abc_xc7.box b/techlibs/xilinx/abc_xc7.box
index 7fe8a7236c4b30ccfd2974fda07b573386d89bfc..273d365739006bc1109855849c0e9ccf286517b8 100644 (file)
--- a/techlibs/xilinx/abc_xc7.box
+++ b/techlibs/xilinx/abc_xc7.box
@@ -16,7 +16,7 @@ MUXF8 2 1 3 1
 
 # Inputs: I0 I1 I2 I3 S0 S1
 # Outputs: O
-MUXF78 3 1 6 1
+$__MUXF78 3 1 6 1
 190 193 217 223 296 273
 
 # CARRY4 + CARRY4_[ABCD]X