diff options
Diffstat (limited to 'nexus/main.cc')
| -rw-r--r-- | nexus/main.cc | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/nexus/main.cc b/nexus/main.cc index 6ffc9a20..667b6d80 100644 --- a/nexus/main.cc +++ b/nexus/main.cc @@ -51,6 +51,8 @@ po::options_description NexusCommandHandler::getArchOptions() specific.add_options()("fasm", po::value<std::string>(), "fasm file to write"); specific.add_options()("pdc", po::value<std::string>(), "physical constraints file"); specific.add_options()("no-post-place-opt", "disable post-place repacking (debugging use only)"); + specific.add_options()("no-pack-lutff", "disable packing (clustering) LUTs and FFs together"); + specific.add_options()("carry-lutff-ratio", po::value<float>(), "ratio of FFs to be added to carry-chain LUT clusters"); return specific; } @@ -76,6 +78,15 @@ std::unique_ptr<Context> NexusCommandHandler::createContext(dict<std::string, Pr auto ctx = std::unique_ptr<Context>(new Context(chipArgs)); if (vm.count("no-post-place-opt")) ctx->settings[ctx->id("no_post_place_opt")] = Property::State::S1; + if (vm.count("no-pack-lutff")) + ctx->settings[ctx->id("no_pack_lutff")] = Property::State::S1; + if (vm.count("carry-lutff-ratio")) { + float ratio = vm["carry-lutff-ratio"].as<float>(); + if (ratio < 0.0f || ratio > 1.0f) { + log_error("Carry LUT+FF packing ration must be between 0.0 and 1.0"); + } + ctx->settings[ctx->id("carry_lutff_ratio")] = ratio; + } return ctx; } |