diff options
Diffstat (limited to 'techlibs/xilinx/synth_xilinx.cc')
| -rw-r--r-- | techlibs/xilinx/synth_xilinx.cc | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/techlibs/xilinx/synth_xilinx.cc b/techlibs/xilinx/synth_xilinx.cc index 0adec57a2..6a060c8fe 100644 --- a/techlibs/xilinx/synth_xilinx.cc +++ b/techlibs/xilinx/synth_xilinx.cc @@ -1,7 +1,7 @@ /* * yosys -- Yosys Open SYnthesis Suite * - * Copyright (C) 2012 Clifford Wolf <clifford@clifford.at> + * Copyright (C) 2012 Claire Xenia Wolf <claire@yosyshq.com> * (C) 2019 Eddie Hung <eddie@fpgeh.com> * * Permission to use, copy, modify, and/or distribute this software for any @@ -558,9 +558,10 @@ struct SynthXilinxPass : public ScriptPass } if (check_label("map_cells")) { - // Needs to be done before logic optimization, so that inverters (OE vs T) are handled. + // Needs to be done before logic optimization, so that inverters (inserted + // here because of negative-polarity output enable) are handled. if (help_mode || !noiopad) - run("iopadmap -bits -outpad OBUF I:O -inpad IBUF O:I -toutpad $__XILINX_TOUTPAD OE:I:O -tinoutpad $__XILINX_TINOUTPAD OE:O:I:IO A:top", "(skip if '-noiopad')"); + run("iopadmap -bits -outpad OBUF I:O -inpad IBUF O:I -toutpad OBUFT ~T:I:O -tinoutpad IOBUF ~T:O:I:IO A:top", "(skip if '-noiopad')"); std::string techmap_args = "-map +/techmap.v -map +/xilinx/cells_map.v"; if (widemux > 0) techmap_args += stringf(" -D MIN_MUX_INPUTS=%d", widemux); @@ -662,6 +663,7 @@ struct SynthXilinxPass : public ScriptPass run("hierarchy -check"); run("stat -tech xilinx"); run("check -noinit"); + run("blackbox =A:whitebox"); } if (check_label("edif")) { @@ -671,7 +673,7 @@ struct SynthXilinxPass : public ScriptPass if (check_label("blif")) { if (!blif_file.empty() || help_mode) - run(stringf("write_blif %s", edif_file.c_str())); + run(stringf("write_blif %s", blif_file.c_str())); } } } SynthXilinxPass; |