From edec73fec1973e5d2491e577127ff8932f67cb88 Mon Sep 17 00:00:00 2001 From: Eddie Hung Date: Wed, 21 Aug 2019 15:37:55 -0700 Subject: [PATCH] abc9 to perform new 'map_ffs' before 'map_luts' --- techlibs/xilinx/synth_xilinx.cc | 21 ++++++++++++++++++--- 1 file changed, 18 insertions(+), 3 deletions(-) diff --git a/techlibs/xilinx/synth_xilinx.cc b/techlibs/xilinx/synth_xilinx.cc index 49f32002c..2c5f2ec57 100644 --- a/techlibs/xilinx/synth_xilinx.cc +++ b/techlibs/xilinx/synth_xilinx.cc @@ -383,6 +383,14 @@ struct SynthXilinxPass : public ScriptPass run("clean"); } + if (check_label("map_ffs")) { + if (abc9 || help_mode) { + run("techmap -map +/xilinx/ff_map.v", "('-abc9' only)"); + run("dffinit -ff FDRE Q INIT -ff FDCE Q INIT -ff FDPE Q INIT -ff FDSE Q INIT " + "-ff FDRE_1 Q INIT -ff FDCE_1 Q INIT -ff FDPE_1 Q INIT -ff FDSE_1 Q INIT", "('-abc9' only)"); + } + } + if (check_label("map_luts")) { run("opt_expr -mux_undef"); if (help_mode) @@ -407,9 +415,16 @@ struct SynthXilinxPass : public ScriptPass // has performed any necessary retiming if (!nosrl || help_mode) run("xilinx_srl -minlen 3", "(skip if '-nosrl')"); - run("techmap -map +/xilinx/lut_map.v -map +/xilinx/ff_map.v -map +/xilinx/cells_map.v"); - run("dffinit -ff FDRE Q INIT -ff FDCE Q INIT -ff FDPE Q INIT -ff FDSE Q INIT " - "-ff FDRE_1 Q INIT -ff FDCE_1 Q INIT -ff FDPE_1 Q INIT -ff FDSE_1 Q INIT"); + + std::string techmap_args = "-map +/xilinx/lut_map.v -map +/xilinx/cells_map.v"; + if (help_mode) + techmap_args += " [-map +/xilinx/ff_map.v]"; + else if (!abc9) + techmap_args += " -map +/xilinx/ff_map.v"; + run("techmap " + techmap_args); + if (!abc9) + run("dffinit -ff FDRE Q INIT -ff FDCE Q INIT -ff FDPE Q INIT -ff FDSE Q INIT " + "-ff FDRE_1 Q INIT -ff FDCE_1 Q INIT -ff FDPE_1 Q INIT -ff FDSE_1 Q INIT", "(without '-abc9' only)"); run("clean"); } -- 2.30.2