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Diffstat (limited to 'frontends/rtlil/rtlil_frontend.cc')
| -rw-r--r-- | frontends/rtlil/rtlil_frontend.cc | 115 |
1 files changed, 115 insertions, 0 deletions
diff --git a/frontends/rtlil/rtlil_frontend.cc b/frontends/rtlil/rtlil_frontend.cc new file mode 100644 index 000000000..00c34175e --- /dev/null +++ b/frontends/rtlil/rtlil_frontend.cc @@ -0,0 +1,115 @@ +/* + * yosys -- Yosys Open SYnthesis Suite + * + * Copyright (C) 2012 Clifford Wolf <clifford@clifford.at> + * + * Permission to use, copy, modify, and/or distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * --- + * + * A very simple and straightforward frontend for the RTLIL text + * representation. + * + */ + +#include "rtlil_frontend.h" +#include "kernel/register.h" +#include "kernel/log.h" + +void rtlil_frontend_yyerror(char const *s) +{ + YOSYS_NAMESPACE_PREFIX log_error("Parser error in line %d: %s\n", rtlil_frontend_yyget_lineno(), s); +} + +YOSYS_NAMESPACE_BEGIN + +struct RTLILFrontend : public Frontend { + RTLILFrontend() : Frontend("rtlil", "read modules from RTLIL file") { } + void help() override + { + // |---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---| + log("\n"); + log(" read_rtlil [filename]\n"); + log("\n"); + log("Load modules from an RTLIL file to the current design. (RTLIL is a text\n"); + log("representation of a design in yosys's internal format.)\n"); + log("\n"); + log(" -nooverwrite\n"); + log(" ignore re-definitions of modules. (the default behavior is to\n"); + log(" create an error message if the existing module is not a blackbox\n"); + log(" module, and overwrite the existing module if it is a blackbox module.)\n"); + log("\n"); + log(" -overwrite\n"); + log(" overwrite existing modules with the same name\n"); + log("\n"); + log(" -lib\n"); + log(" only create empty blackbox modules\n"); + log("\n"); + } + void execute(std::istream *&f, std::string filename, std::vector<std::string> args, RTLIL::Design *design) override + { + RTLIL_FRONTEND::flag_nooverwrite = false; + RTLIL_FRONTEND::flag_overwrite = false; + RTLIL_FRONTEND::flag_lib = false; + + log_header(design, "Executing RTLIL frontend.\n"); + + size_t argidx; + for (argidx = 1; argidx < args.size(); argidx++) { + std::string arg = args[argidx]; + if (arg == "-nooverwrite") { + RTLIL_FRONTEND::flag_nooverwrite = true; + RTLIL_FRONTEND::flag_overwrite = false; + continue; + } + if (arg == "-overwrite") { + RTLIL_FRONTEND::flag_nooverwrite = false; + RTLIL_FRONTEND::flag_overwrite = true; + continue; + } + if (arg == "-lib") { + RTLIL_FRONTEND::flag_lib = true; + continue; + } + break; + } + extra_args(f, filename, args, argidx); + + log("Input filename: %s\n", filename.c_str()); + + RTLIL_FRONTEND::lexin = f; + RTLIL_FRONTEND::current_design = design; + rtlil_frontend_yydebug = false; + rtlil_frontend_yyrestart(NULL); + rtlil_frontend_yyparse(); + rtlil_frontend_yylex_destroy(); + } +} RTLILFrontend; + +struct IlangFrontend : public Frontend { + IlangFrontend() : Frontend("ilang", "(deprecated) alias of read_rtlil") { } + void help() override + { + // |---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---| + log("\n"); + log("See `help read_rtlil`.\n"); + log("\n"); + } + void execute(std::istream *&f, std::string filename, std::vector<std::string> args, RTLIL::Design *design) override + { + RTLILFrontend.execute(f, filename, args, design); + } +} IlangFrontend; + +YOSYS_NAMESPACE_END + |