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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/rtlil.h"
+#include "kernel/register.h"
+#include "kernel/sigtools.h"
+#include "kernel/celltypes.h"
+#include "kernel/log.h"
+#include <string>
+#include <assert.h>
+
+struct EdifBackend : public Backend {
+ EdifBackend() : Backend("edif", "write design to EDIF netlist file") { }
+ virtual void help()
+ {
+ // |---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|
+ log("\n");
+ log(" write_edif [options] [filename]\n");
+ log("\n");
+ log("Write the current design to an EDIF netlist file.\n");
+ log("\n");
+ log(" -top top_module\n");
+ log(" set the specified module as design top module\n");
+ log("\n");
+ log("FIXME: This backend in under construction!\n");
+ log("\n");
+ }
+ virtual void execute(FILE *&f, std::string filename, std::vector<std::string> args, RTLIL::Design *design)
+ {
+ log_header("Executing EDIF backend.\n");
+
+ std::string top_module_name;
+ std::map<std::string, std::set<std::string>> lib_cell_ports;
+ CellTypes ct(design);
+
+ size_t argidx;
+ for (argidx = 1; argidx < args.size(); argidx++)
+ {
+ if (args[argidx] == "-top" && argidx+1 < args.size()) {
+ top_module_name = args[++argidx];
+ continue;
+ }
+ break;
+ }
+ extra_args(f, filename, args, argidx);
+
+ for (auto module_it : design->modules)
+ {
+ RTLIL::Module *module = module_it.second;
+ if ((module->attributes.count("\\placeholder") > 0) > 0)
+ continue;
+
+ if (top_module_name.empty())
+ top_module_name = module->name;
+
+ if (module->processes.size() != 0)
+ log_error("Found unmapped processes in module %s: unmapped processes are not supported in EDIF backend!\n", RTLIL::id2cstr(module->name));
+ if (module->memories.size() != 0)
+ log_error("Found munmapped emories in module %s: unmapped memories are not supported in EDIF backend!\n", RTLIL::id2cstr(module->name));
+
+ for (auto cell_it : module->cells)
+ {
+ RTLIL::Cell *cell = cell_it.second;
+ if (!design->modules.count(cell->type) || design->modules.at(cell->type)->attributes.count("\\placeholder")) {
+ lib_cell_ports[cell->type];
+ for (auto p : cell->connections) {
+ if (p.second.width > 1)
+ log_error("Found multi-bit port %s on library cell %s.%s (%s): not supported in EDIF backend!\n",
+ RTLIL::id2cstr(p.first), RTLIL::id2cstr(module->name), RTLIL::id2cstr(cell->name), RTLIL::id2cstr(cell->type));
+ lib_cell_ports[cell->type].insert(p.first);
+ }
+ }
+ }
+ }
+
+ if (top_module_name.empty())
+ log_error("No module found in design!\n");
+
+ fprintf(f, "(edif %s\n", RTLIL::id2cstr(top_module_name));
+ fprintf(f, " (edifVersion 2 0 0)\n");
+ fprintf(f, " (edifLevel 0)\n");
+ fprintf(f, " (keywordMap (keywordLevel 0))\n");
+
+ fprintf(f, " (external LIB\n");
+ fprintf(f, " (edifLevel 0)\n");
+ fprintf(f, " (technology (numberDefinition))\n");
+ for (auto &cell_it : lib_cell_ports) {
+ fprintf(f, " (cell %s\n", RTLIL::id2cstr(cell_it.first));
+ fprintf(f, " (cellType GENERIC)\n");
+ fprintf(f, " (view VIEW_NETLIST\n");
+ fprintf(f, " (viewType NETLIST)\n");
+ fprintf(f, " (interface\n");
+ for (auto &port_it : cell_it.second) {
+ const char *dir = "INOUT";
+ if (ct.cell_known(cell_it.first)) {
+ if (!ct.cell_output(cell_it.first, port_it))
+ dir = "INPUT";
+ else if (!ct.cell_input(cell_it.first, port_it))
+ dir = "OUTPUT";
+ }
+ fprintf(f, " (port %s (direction %s))\n", RTLIL::id2cstr(port_it), dir);
+ }
+ fprintf(f, " )\n");
+ fprintf(f, " )\n");
+ fprintf(f, " )\n");
+ }
+ fprintf(f, " )\n");
+
+ fprintf(f, " (library DESIGN\n");
+ fprintf(f, " (edifLevel 0)\n");
+ fprintf(f, " (technology (numberDefinition))\n");
+ for (auto module_it : design->modules)
+ {
+ RTLIL::Module *module = module_it.second;
+ if ((module->attributes.count("\\placeholder") > 0) > 0)
+ continue;
+
+ SigMap sigmap(module);
+ std::map<RTLIL::SigSpec, std::set<std::string>> net_join_db;
+
+ fprintf(f, " (cell %s\n", RTLIL::id2cstr(module->name));
+ fprintf(f, " (cellType GENERIC)\n");
+ fprintf(f, " (view VIEW_NETLIST\n");
+ fprintf(f, " (viewType NETLIST)\n");
+ fprintf(f, " (interface\n");
+ for (auto &wire_it : module->wires) {
+ RTLIL::Wire *wire = wire_it.second;
+ if (wire->port_id == 0)
+ continue;
+ const char *dir = "INOUT";
+ if (!wire->port_output)
+ dir = "INPUT";
+ else if (!wire->port_input)
+ dir = "OUTPUT";
+ for (int i = 0; i < wire->width; i++) {
+ std::string portname = wire->width > 1 ? stringf("%s[%d]", RTLIL::id2cstr(wire->name),
+ i+wire->start_offset) : RTLIL::id2cstr(wire->name);
+ fprintf(f, " (port %s (direction %s))\n", portname.c_str(), dir);
+ RTLIL::SigSpec sig = sigmap(RTLIL::SigSpec(wire, 1, i));
+ net_join_db[sig].insert(stringf("(portRef %s)", portname.c_str()));
+ }
+ }
+ fprintf(f, " )\n");
+ fprintf(f, " (contents\n");
+ for (auto &cell_it : module->cells) {
+ RTLIL::Cell *cell = cell_it.second;
+ fprintf(f, " (instance %s (viewRef VIEW_NETLIST (cellRef %s%s)))\n",
+ RTLIL::id2cstr(cell->name), RTLIL::id2cstr(cell->type),
+ lib_cell_ports.count(cell->type) > 0 ? " (libraryRef LIB)" : "");
+ for (auto &p : cell->connections) {
+ RTLIL::SigSpec sig = sigmap(p.second);
+ sig.expand();
+ for (int i = 0; i < sig.width; i++) {
+ RTLIL::SigSpec sigbit(sig.chunks.at(i));
+ std::string portname = sig.width > 1 ? stringf("%s[%d]", RTLIL::id2cstr(p.first), i) : RTLIL::id2cstr(p.first);
+ net_join_db[sigbit].insert(stringf("(portRef %s (instanceRef %s))", portname.c_str(), RTLIL::id2cstr(cell->name)));
+ }
+ }
+ }
+ for (auto &it : net_join_db) {
+ std::string netname = log_signal(it.first);
+ for (size_t i = 0; i < netname.size(); i++)
+ if (netname[i] == ' ' || netname[i] == '\\')
+ netname.erase(netname.begin() + i--);
+ fprintf(f, " (net %s (joined\n", netname.c_str());
+ for (auto &ref : it.second)
+ fprintf(f, " %s\n", ref.c_str());
+ fprintf(f, " ))\n");
+ }
+ fprintf(f, " )\n");
+ fprintf(f, " )\n");
+ fprintf(f, " )\n");
+ }
+ fprintf(f, " )\n");
+
+ fprintf(f, " (design %s\n", RTLIL::id2cstr(top_module_name));
+ fprintf(f, " (cellRef %s (libraryRef DESIGN))\n", RTLIL::id2cstr(top_module_name));
+ fprintf(f, " )\n");
+
+ fprintf(f, ")\n");
+ }
+} EdifBackend;
+