diff options
Diffstat (limited to 'techlibs/xilinx/synth_xilinx.cc')
| -rw-r--r-- | techlibs/xilinx/synth_xilinx.cc | 39 |
1 files changed, 18 insertions, 21 deletions
diff --git a/techlibs/xilinx/synth_xilinx.cc b/techlibs/xilinx/synth_xilinx.cc index 229ffcb3d..b66dc850d 100644 --- a/techlibs/xilinx/synth_xilinx.cc +++ b/techlibs/xilinx/synth_xilinx.cc @@ -30,13 +30,13 @@ struct SynthXilinxPass : public ScriptPass { SynthXilinxPass() : ScriptPass("synth_xilinx", "synthesis for Xilinx FPGAs") { } - void on_register() YS_OVERRIDE + void on_register() override { RTLIL::constpad["synth_xilinx.abc9.xc7.W"] = "300"; // Number with which ABC will map a 6-input gate // to one LUT6 (instead of a LUT5 + LUT2) } - void help() YS_OVERRIDE + void help() override { // |---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---| log("\n"); @@ -143,13 +143,13 @@ struct SynthXilinxPass : public ScriptPass std::string top_opt, edif_file, blif_file, family; bool flatten, retime, vpr, ise, noiopad, noclkbuf, nobram, nolutram, nosrl, nocarry, nowidelut, nodsp, uram; - bool abc9, dff_mode; + bool abc9, dff; bool flatten_before_abc; int widemux; int lut_size; int widelut_size; - void clear_flags() YS_OVERRIDE + void clear_flags() override { top_opt = "-auto-top"; edif_file.clear(); @@ -170,13 +170,13 @@ struct SynthXilinxPass : public ScriptPass nodsp = false; uram = false; abc9 = false; - dff_mode = false; + dff = false; flatten_before_abc = false; widemux = 0; lut_size = 6; } - void execute(std::vector<std::string> args, RTLIL::Design *design) YS_OVERRIDE + void execute(std::vector<std::string> args, RTLIL::Design *design) override { std::string run_from, run_to; clear_flags(); @@ -217,7 +217,7 @@ struct SynthXilinxPass : public ScriptPass continue; } if (args[argidx] == "-retime") { - dff_mode = true; + dff = true; retime = true; continue; } @@ -281,7 +281,7 @@ struct SynthXilinxPass : public ScriptPass continue; } if (args[argidx] == "-dff") { - dff_mode = true; + dff = true; continue; } break; @@ -337,7 +337,7 @@ struct SynthXilinxPass : public ScriptPass log_pop(); } - void script() YS_OVERRIDE + void script() override { std::string lut_size_s = std::to_string(lut_size); if (help_mode) @@ -540,7 +540,7 @@ struct SynthXilinxPass : public ScriptPass } if (check_label("fine")) { - run("dff2dffe -direct-match $_DFF_* -direct-match $__DFFS_*"); + run("dff2dffe -direct-match $_DFF_* -direct-match $_SDFF_*"); if (help_mode) run("muxcover <internal options> ('-widemux' only)"); else if (widemux > 0) { @@ -595,9 +595,11 @@ struct SynthXilinxPass : public ScriptPass run("clean"); } - if (check_label("map_ffs")) { + if (check_label("map_ffs", "('-abc9' only)")) { if (abc9 || help_mode) { - run("techmap -map " + ff_map_file, "('-abc9' only)"); + if (dff || help_mode) + run("zinit -all w:* t:$_DFF_?_ t:$_DFFE_??_ t:$_SDFF*", "('-dff' only)"); + run("techmap -map " + ff_map_file); } } @@ -606,18 +608,14 @@ struct SynthXilinxPass : public ScriptPass if (flatten_before_abc) run("flatten"); if (help_mode) - run("abc -luts 2:2,3,6:5[,10,20] [-dff] [-D 1]", "(option for 'nowidelut', '-dff', '-retime')"); + run("abc -luts 2:2,3,6:5[,10,20] [-dff] [-D 1]", "(option for '-nowidelut', '-dff', '-retime')"); else if (abc9) { if (lut_size != 6) log_error("'synth_xilinx -abc9' not currently supported for LUT4-based devices.\n"); if (family != "xc7") log_warning("'synth_xilinx -abc9' not currently supported for the '%s' family, " "will use timing for 'xc7' instead.\n", family.c_str()); - std::string techmap_args = "-map +/xilinx/abc9_map.v -max_iter 1"; - if (dff_mode) - techmap_args += " -D DFF_MODE"; - run("techmap " + techmap_args); - run("read_verilog -icells -lib -specify +/abc9_model.v +/xilinx/abc9_model.v"); + run("read_verilog -icells -lib -specify +/xilinx/abc9_model.v"); std::string abc9_opts; std::string k = "synth_xilinx.abc9.W"; if (active_design && active_design->scratchpad.count(k)) @@ -628,10 +626,9 @@ struct SynthXilinxPass : public ScriptPass } if (nowidelut) abc9_opts += stringf(" -maxlut %d", lut_size); - if (dff_mode) + if (dff) abc9_opts += " -dff"; run("abc9" + abc9_opts); - run("techmap -map +/xilinx/abc9_unmap.v"); } else { std::string abc_opts; @@ -648,7 +645,7 @@ struct SynthXilinxPass : public ScriptPass else abc_opts += " -luts 2:2,3,6:5,10,20,40"; } - if (dff_mode) + if (dff) abc_opts += " -dff"; if (retime) abc_opts += " -D 1"; |