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Clifford Wolf 2013-01-05 11:13:26 +01:00
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/*
* 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.
*
*/
#include "kernel/register.h"
#include "kernel/log.h"
#include <stdlib.h>
#include <stdio.h>
struct FsmPass : public Pass {
FsmPass() : Pass("fsm") { }
virtual void execute(std::vector<std::string> args, RTLIL::Design *design)
{
bool flag_nomap = false;
bool flag_norecode = false;
bool flag_expand = false;
bool flag_export = false;
std::string fm_set_fsm_file_opt;
log_header("Executing FSM pass (extract and optimize FSM).\n");
log_push();
size_t argidx;
for (argidx = 1; argidx < args.size(); argidx++) {
std::string arg = args[argidx];
if (arg == "-fm_set_fsm_file" && argidx+1 < args.size() && fm_set_fsm_file_opt.empty()) {
fm_set_fsm_file_opt = " -fm_set_fsm_file " + args[++argidx];
continue;
}
if (arg == "-norecode") {
flag_norecode = true;
continue;
}
if (arg == "-nomap") {
flag_nomap = true;
continue;
}
if (arg == "-expand") {
flag_expand = true;
continue;
}
if (arg == "-export") {
flag_export = true;
continue;
}
break;
}
extra_args(args, argidx, design);
Pass::call(design, "fsm_detect");
Pass::call(design, "fsm_extract");
Pass::call(design, "fsm_opt");
Pass::call(design, "opt_rmunused");
Pass::call(design, "fsm_opt");
if (flag_expand) {
Pass::call(design, "fsm_expand");
Pass::call(design, "opt_rmunused");
Pass::call(design, "fsm_opt");
}
if (!flag_norecode)
Pass::call(design, "fsm_recode" + fm_set_fsm_file_opt);
Pass::call(design, "fsm_info");
if (!flag_nomap)
Pass::call(design, "fsm_map");
if (flag_export)
Pass::call(design, "fsm_export");
log_pop();
}
} FsmPass;