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