mirror of https://github.com/YosysHQ/yosys.git
136 lines
3.8 KiB
C++
136 lines
3.8 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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#include "kernel/register.h"
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#include "kernel/log.h"
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#include <stdlib.h>
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#include <stdio.h>
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USING_YOSYS_NAMESPACE
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PRIVATE_NAMESPACE_BEGIN
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struct ProcPass : public Pass {
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ProcPass() : Pass("proc", "translate processes to netlists") { }
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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(" proc [options] [selection]\n");
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log("\n");
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log("This pass calls all the other proc_* passes in the most common order.\n");
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log("\n");
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log(" proc_clean\n");
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log(" proc_rmdead\n");
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log(" proc_prune\n");
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log(" proc_init\n");
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log(" proc_arst\n");
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log(" proc_rom\n");
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log(" proc_mux\n");
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log(" proc_dlatch\n");
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log(" proc_dff\n");
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log(" proc_memwr\n");
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log(" proc_clean\n");
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log(" opt_expr -keepdc\n");
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log("\n");
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log("This replaces the processes in the design with multiplexers,\n");
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log("flip-flops and latches.\n");
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log("\n");
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log("The following options are supported:\n");
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log("\n");
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log(" -nomux\n");
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log(" Will omit the proc_mux pass.\n");
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log("\n");
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log(" -norom\n");
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log(" Will omit the proc_rom pass.\n");
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log("\n");
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log(" -global_arst [!]<netname>\n");
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log(" This option is passed through to proc_arst.\n");
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log("\n");
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log(" -ifx\n");
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log(" This option is passed through to proc_mux. proc_rmdead is not\n");
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log(" executed in -ifx mode.\n");
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log("\n");
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log(" -noopt\n");
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log(" Will omit the opt_expr pass.\n");
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log("\n");
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}
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void execute(std::vector<std::string> args, RTLIL::Design *design) override
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{
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std::string global_arst;
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bool ifxmode = false;
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bool nomux = false;
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bool noopt = false;
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bool norom = false;
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log_header(design, "Executing PROC pass (convert processes to netlists).\n");
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log_push();
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size_t argidx;
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for (argidx = 1; argidx < args.size(); argidx++)
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{
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if (args[argidx] == "-nomux") {
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nomux = true;
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continue;
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}
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if (args[argidx] == "-global_arst" && argidx+1 < args.size()) {
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global_arst = args[++argidx];
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continue;
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}
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if (args[argidx] == "-ifx") {
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ifxmode = true;
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continue;
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}
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if (args[argidx] == "-noopt") {
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noopt = true;
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continue;
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}
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if (args[argidx] == "-norom") {
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norom = 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(args, argidx, design);
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Pass::call(design, "proc_clean");
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if (!ifxmode)
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Pass::call(design, "proc_rmdead");
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Pass::call(design, "proc_prune");
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Pass::call(design, "proc_init");
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if (global_arst.empty())
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Pass::call(design, "proc_arst");
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else
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Pass::call(design, "proc_arst -global_arst " + global_arst);
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if (!norom)
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Pass::call(design, "proc_rom");
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if (!nomux)
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Pass::call(design, ifxmode ? "proc_mux -ifx" : "proc_mux");
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Pass::call(design, "proc_dlatch");
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Pass::call(design, "proc_dff");
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Pass::call(design, "proc_memwr");
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Pass::call(design, "proc_clean");
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if (!noopt)
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Pass::call(design, "opt_expr -keepdc");
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log_pop();
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}
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} ProcPass;
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PRIVATE_NAMESPACE_END
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