aboutsummaryrefslogtreecommitdiffstats
path: root/backends/jny
diff options
context:
space:
mode:
Diffstat (limited to 'backends/jny')
-rw-r--r--backends/jny/Makefile.inc2
-rw-r--r--backends/jny/jny.cc326
2 files changed, 328 insertions, 0 deletions
diff --git a/backends/jny/Makefile.inc b/backends/jny/Makefile.inc
new file mode 100644
index 000000000..5e417128e
--- /dev/null
+++ b/backends/jny/Makefile.inc
@@ -0,0 +1,2 @@
+
+OBJS += backends/jny/jny.o
diff --git a/backends/jny/jny.cc b/backends/jny/jny.cc
new file mode 100644
index 000000000..1c1b8d694
--- /dev/null
+++ b/backends/jny/jny.cc
@@ -0,0 +1,326 @@
+/*
+ * yosys -- Yosys Open SYnthesis Suite
+ *
+ * Copyright (C) 2012 Aki "lethalbit" Van Ness <aki@yosyshq.com> <aki@lethalbit.net>
+ *
+ * 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/cellaigs.h"
+#include "kernel/log.h"
+#include <string>
+#include <unordered_map>
+#include <vector>
+
+USING_YOSYS_NAMESPACE
+PRIVATE_NAMESPACE_BEGIN
+
+
+struct JnyWriter
+{
+ private:
+ std::ostream &f;
+ bool _use_selection;
+ std::unordered_map<std::string, std::vector<Cell*>> _cells{};
+
+ // XXX(aki): this was pulled from the json backend, needs to be pulled
+ // out possibly into some sort of utilities file, or integrated into rtlil.h
+ // directly
+ string get_string(string str)
+ {
+ string newstr = "\"";
+ for (char c : str) {
+ if (c == '\\')
+ newstr += c;
+ newstr += c;
+ }
+ return newstr + "\"";
+ }
+
+ // XXX(aki): I know this is far from ideal but i'm out of spoons and cant focus so
+ // it'll have to do for now,
+ void coalesce_cells(Module* mod)
+ {
+ for (auto cell : mod->cells()) {
+ const auto cell_type = get_string(RTLIL::unescape_id(cell->type));
+
+ if (_cells.find(cell_type) == _cells.end())
+ _cells.emplace(cell_type, std::vector<Cell*>());
+
+ _cells.at(cell_type).push_back(cell);
+ }
+ }
+
+ public:
+ JnyWriter(std::ostream &f, bool use_selection) noexcept: f(f), _use_selection(use_selection) { }
+
+ void write_metadata(Design *design)
+ {
+ log_assert(design != nullptr);
+
+ design->sort();
+
+ f << "{\n";
+ f << stringf(" \"generator\": %s,\n", get_string(yosys_version_str).c_str());
+ // XXX(aki): Replace this with a proper version info eventually:tm:
+ f << " \"version\": \"0.0.0\",\n";
+ f << " \"modules\": [\n";
+
+ bool first{true};
+ for (auto mod : _use_selection ? design->selected_modules() : design->modules()) {
+ if (!first)
+ f << ",\n";
+ write_module(mod);
+
+ f << "\n";
+
+ first = false;
+ }
+
+ f << " ]\n";
+ f << "}\n";
+ }
+
+ void write_module(Module* mod)
+ {
+ log_assert(mod != nullptr);
+
+ coalesce_cells(mod);
+
+ f << " {\n";
+ f << stringf(" \"name\": %s,\n", get_string(RTLIL::unescape_id(mod->name)).c_str());
+ f << " \"cell_sorts\": [\n";
+
+ bool first_sort{true};
+ for (auto& sort : _cells) {
+ if (!first_sort)
+ f << ",\n";
+
+ write_cell_sort(sort);
+
+ first_sort = false;
+ }
+ f << "\n";
+
+ f << " ],\n";
+ f << " \"connections\": [\n";
+
+ f << " ]\n";
+ f << " }";
+ }
+
+
+ void write_cell_sort(std::pair<const std::string, std::vector<Cell*>>& sort)
+ {
+ const auto port_cell = sort.second.front();
+
+ f << " {\n";
+ f << stringf(" \"type\": %s,\n", sort.first.c_str());
+ f << " \"ports\": [\n";
+
+ bool first_port{true};
+ for (auto con : port_cell->connections()) {
+ if (!first_port)
+ f << ",\n";
+
+ f << " {\n";
+ f << stringf(" \"name\": %s,\n", get_string(RTLIL::unescape_id(con.first)).c_str());
+ f << " \"direction\": \"";
+ if (port_cell->input(con.first))
+ f << "i";
+ if (port_cell->input(con.first))
+ f << "o";
+ f << "\",\n";
+ if (con.second.size() == 1)
+ f << " \"range\": [0, 0]\n";
+ else
+ f << stringf(" \"range\": [%d, %d]\n", con.second.size(), 0);
+ f << " }";
+
+ first_port = false;
+ }
+ f << "\n";
+
+ f << " ],\n \"cells\": [\n";
+ bool first_cell{true};
+ for (auto& cell : sort.second) {
+ if (!first_cell)
+ f << ",\n";
+
+ write_cell(cell);
+
+ first_cell = false;
+ }
+ f << "\n";
+ f << " ]\n";
+ f << " }";
+ }
+
+ void write_param_val(const Const& v)
+ {
+ if ((v.flags & RTLIL::ConstFlags::CONST_FLAG_STRING) == RTLIL::ConstFlags::CONST_FLAG_STRING) {
+ const auto str = v.decode_string();
+
+
+ f << get_string(str);
+ } else if ((v.flags & RTLIL::ConstFlags::CONST_FLAG_SIGNED) == RTLIL::ConstFlags::CONST_FLAG_SIGNED) {
+ f << stringf("\"%dsd %d\"", v.size(), v.as_int());
+ } else if ((v.flags & RTLIL::ConstFlags::CONST_FLAG_REAL) == RTLIL::ConstFlags::CONST_FLAG_REAL) {
+
+ } else {
+ f << get_string(v.as_string());
+ }
+ }
+
+ void write_cell(Cell* cell)
+ {
+ log_assert(cell != nullptr);
+
+ f << " {\n";
+ f << stringf(" \"name\": %s,\n", get_string(RTLIL::unescape_id(cell->name)).c_str());
+ f << " \"attributes\": {\n";
+
+ bool first_attr{true};
+ for (auto& attr : cell->attributes) {
+ if (!first_attr)
+ f << stringf(",\n");
+ const auto attr_val = attr.second;
+ if (!attr_val.empty()) {
+ f << stringf(" %s: ", get_string(RTLIL::unescape_id(attr.first)).c_str());
+ write_param_val(attr_val);
+ } else {
+ f << stringf(" %s: true", get_string(RTLIL::unescape_id(attr.first)).c_str());
+ }
+
+ first_attr = false;
+ }
+ f << "\n";
+
+ f << " },\n";
+ f << " \"parameters\": {\n";
+
+ bool first_param{true};
+ for (auto& param : cell->parameters) {
+ if (!first_param)
+ f << stringf(",\n");
+ const auto param_val = param.second;
+ if (!param_val.empty()) {
+ f << stringf(" %s: ", get_string(RTLIL::unescape_id(param.first)).c_str());
+ write_param_val(param_val);
+ } else {
+ f << stringf(" %s: true", get_string(RTLIL::unescape_id(param.first)).c_str());
+ }
+
+ first_param = false;
+ }
+ f << "\n";
+
+ f << " },\n";
+ f << " }";
+ }
+};
+
+struct JnyBackend : public Backend {
+ JnyBackend() : Backend("jny", "generate design metadata") { }
+ void help() override
+ {
+ // |---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|
+ log("\n");
+ log(" jny [options] [selection]\n");
+ log("\n");
+ log("Write a JSON metadata for the current design\n");
+ log("\n");
+ log("\n");
+ }
+
+ void execute(std::ostream *&f, std::string filename, std::vector<std::string> args, RTLIL::Design *design) override
+ {
+ size_t argidx{1};
+ extra_args(f, filename, args, argidx);
+
+ log_header(design, "Executing jny backend.\n");
+
+ JnyWriter jny_writer(*f, false);
+ jny_writer.write_metadata(design);
+ }
+
+} JnyBackend;
+
+
+struct JnyPass : public Pass {
+ JnyPass() : Pass("jny", "write design and metadata") { }
+
+ void help() override
+ {
+ // |---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|
+ log("\n");
+ log(" jny [options] [selection]\n");
+ log("\n");
+ log("Write a JSON netlist metadata for the current design\n");
+ log("\n");
+ log(" -o <filename>\n");
+ log(" write to the specified file.\n");
+ log("\n");
+ log("See 'help write_jny' for a description of the JSON format used.\n");
+ log("\n");
+ }
+ void execute(std::vector<std::string> args, RTLIL::Design *design) override
+ {
+ std::string filename{};
+
+ size_t argidx;
+ for (argidx = 1; argidx < args.size(); argidx++)
+ {
+ if (args[argidx] == "-o" && argidx+1 < args.size()) {
+ filename = args[++argidx];
+ continue;
+ }
+ break;
+ }
+ extra_args(args, argidx, design);
+
+ std::ostream *f;
+ std::stringstream buf;
+
+ if (!filename.empty()) {
+ rewrite_filename(filename);
+ std::ofstream *ff = new std::ofstream;
+ ff->open(filename.c_str(), std::ofstream::trunc);
+ if (ff->fail()) {
+ delete ff;
+ log_error("Can't open file `%s' for writing: %s\n", filename.c_str(), strerror(errno));
+ }
+ f = ff;
+ } else {
+ f = &buf;
+ }
+
+
+ JnyWriter jny_writer(*f, false);
+ jny_writer.write_metadata(design);
+
+ if (!filename.empty()) {
+ delete f;
+ } else {
+ log("%s", buf.str().c_str());
+ }
+ }
+
+} JnyPass;
+
+PRIVATE_NAMESPACE_END
generated by cgit v1.2.3 (git 2.25.1) at 2025-04-03 06:33:31 +0000