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/*
* yosys -- Yosys Open SYnthesis Suite
*
* Copyright (C) 2012 Claire Xenia Wolf <claire@yosyshq.com>
*
* 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>
USING_YOSYS_NAMESPACE
PRIVATE_NAMESPACE_BEGIN
struct ProcPass : public Pass {
ProcPass() : Pass("proc", "translate processes to netlists") { }
void help() override
{
// |---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|
log("\n");
log(" proc [options] [selection]\n");
log("\n");
log("This pass calls all the other proc_* passes in the most common order.\n");
log("\n");
log(" proc_clean\n");
log(" proc_rmdead\n");
log(" proc_prune\n");
log(" proc_init\n");
log(" proc_arst\n");
log(" proc_rom\n");
log(" proc_mux\n");
log(" proc_dlatch\n");
log(" proc_dff\n");
log(" proc_memwr\n");
log(" proc_clean\n");
log(" opt_expr -keepdc\n");
log("\n");
log("This replaces the processes in the design with multiplexers,\n");
log("flip-flops and latches.\n");
log("\n");
log("The following options are supported:\n");
log("\n");
log(" -nomux\n");
log(" Will omit the proc_mux pass.\n");
log("\n");
log(" -norom\n");
log(" Will omit the proc_rom pass.\n");
log("\n");
log(" -global_arst [!]<netname>\n");
log(" This option is passed through to proc_arst.\n");
log("\n");
log(" -ifx\n");
log(" This option is passed through to proc_mux. proc_rmdead is not\n");
log(" executed in -ifx mode.\n");
log("\n");
log(" -noopt\n");
log(" Will omit the opt_expr pass.\n");
log("\n");
}
void execute(std::vector<std::string> args, RTLIL::Design *design) override
{
std::string global_arst;
bool ifxmode = false;
bool nomux = false;
bool noopt = false;
bool norom = false;
log_header(design, "Executing PROC pass (convert processes to netlists).\n");
log_push();
size_t argidx;
for (argidx = 1; argidx < args.size(); argidx++)
{
if (args[argidx] == "-nomux") {
nomux = true;
continue;
}
if (args[argidx] == "-global_arst" && argidx+1 < args.size()) {
global_arst = args[++argidx];
continue;
}
if (args[argidx] == "-ifx") {
ifxmode = true;
continue;
}
if (args[argidx] == "-noopt") {
noopt = true;
continue;
}
if (args[argidx] == "-norom") {
norom = true;
continue;
}
break;
}
extra_args(args, argidx, design);
Pass::call(design, "proc_clean");
if (!ifxmode)
Pass::call(design, "proc_rmdead");
Pass::call(design, "proc_prune");
Pass::call(design, "proc_init");
if (global_arst.empty())
Pass::call(design, "proc_arst");
else
Pass::call(design, "proc_arst -global_arst " + global_arst);
if (!norom)
Pass::call(design, "proc_rom");
if (!nomux)
Pass::call(design, ifxmode ? "proc_mux -ifx" : "proc_mux");
Pass::call(design, "proc_dlatch");
Pass::call(design, "proc_dff");
Pass::call(design, "proc_memwr");
Pass::call(design, "proc_clean");
if (!noopt)
Pass::call(design, "opt_expr -keepdc");
log_pop();
}
} ProcPass;
PRIVATE_NAMESPACE_END
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