passes/proc/proc.cc

   1 /*
   2  *  yosys -- Yosys Open SYnthesis Suite
   3  *
   4  *  Copyright (C) 2012  Clifford Wolf <clifford@clifford.at>
   5  *
   6  *  Permission to use, copy, modify, and/or distribute this software for any
   7  *  purpose with or without fee is hereby granted, provided that the above
   8  *  copyright notice and this permission notice appear in all copies.
   9  *
  10  *  THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
  11  *  WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
  12  *  MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
  13  *  ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
  14  *  WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
  15  *  ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
  16  *  OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  17  *
  18  */
  19
  20 #include "kernel/register.h"
  21 #include "kernel/log.h"
  22 #include <stdlib.h>
  23 #include <stdio.h>
  24
  25 struct ProcPass : public Pass {
  26         ProcPass() : Pass("proc", "translate processes to netlists") { }
  27         virtual void help()
  28         {
  29                 //   |---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|
  30                 log("\n");
  31                 log("    proc [selection]\n");
  32                 log("\n");
  33                 log("This pass calls all the other proc_* passes in the most common order.\n");
  34                 log("\n");
  35                 log("    proc_clean\n");
  36                 log("    proc_rmdead\n");
  37                 log("    proc_arst\n");
  38                 log("    proc_mux\n");
  39                 log("    proc_dff\n");
  40                 log("    proc_clean\n");
  41                 log("\n");
  42                 log("This replaces the processes in the design with multiplexers and flip-flops.\n");
  43                 log("\n");
  44         }
  45         virtual void execute(std::vector<std::string> args, RTLIL::Design *design)
  46         {
  47                 log_header("Executing PROC pass (convert processes to netlists).\n");
  48                 log_push();
  49
  50                 extra_args(args, 1, design);
  51
  52                 Pass::call(design, "proc_clean");
  53                 Pass::call(design, "proc_rmdead");
  54                 Pass::call(design, "proc_arst");
  55                 Pass::call(design, "proc_mux");
  56                 Pass::call(design, "proc_dff");
  57                 Pass::call(design, "proc_clean");
  58
  59                 log_pop();
  60         }
  61 } ProcPass;
  62