From aa1eeda567d09e2d2ffd40cd008d0166d2910273 Mon Sep 17 00:00:00 2001 From: Eddie Hung Date: Mon, 24 Jun 2019 11:51:55 -0700 Subject: [PATCH] Modify costs for muxcover --- techlibs/xilinx/synth_xilinx.cc | 16 +++++++++++++++- 1 file changed, 15 insertions(+), 1 deletion(-) diff --git a/techlibs/xilinx/synth_xilinx.cc b/techlibs/xilinx/synth_xilinx.cc index 2cf28fce1..a84f54e99 100644 --- a/techlibs/xilinx/synth_xilinx.cc +++ b/techlibs/xilinx/synth_xilinx.cc @@ -282,7 +282,21 @@ struct SynthXilinxPass : public ScriptPass // NB: Cost of mux2 is 100; mux8 should cost between 3 and 4 // of those so that 4:1 muxes and below are implemented // out of mux2s - std::string muxcover_args = " -dmux=0 -mux8=350 -mux16=400"; + std::string muxcover_args = " -dmux=0"; + switch (minmuxf) { + case 5: muxcover_args += " -mux8=350 -mux16=400"; break; + case 6: muxcover_args += " -mux8=450 -mux16=500"; break; + case 7: muxcover_args += " -mux8=550 -mux16=600"; break; + case 8: muxcover_args += " -mux8=650 -mux16=700"; break; + case 9: muxcover_args += " -mux16=750"; break; + case 10: muxcover_args += " -mux16=850"; break; + case 11: muxcover_args += " -mux16=950"; break; + case 12: muxcover_args += " -mux16=1050"; break; + case 13: muxcover_args += " -mux16=1150"; break; + case 14: muxcover_args += " -mux16=1250"; break; + case 15: muxcover_args += " -mux16=1350"; break; + default: muxcover_args += " -mux16=1450"; break; + } run("muxcover " + muxcover_args, "('-minmuxf' only)"); } } -- 2.30.2