yosys/backends/cxxrtl/cxxrtl_capi.cc

93 lines
2.9 KiB
C++

/*
* yosys -- Yosys Open SYnthesis Suite
*
* Copyright (C) 2020 whitequark <whitequark@whitequark.org>
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted.
*
* 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.
*
*/
// This file is a part of the CXXRTL C API. It should be used together with `cxxrtl_capi.h`.
#include <backends/cxxrtl/cxxrtl.h>
#include <backends/cxxrtl/cxxrtl_capi.h>
struct _cxxrtl_handle {
std::unique_ptr<cxxrtl::module> module;
cxxrtl::debug_items objects;
};
// Private function for use by other units of the C API.
const cxxrtl::debug_items &cxxrtl_debug_items_from_handle(cxxrtl_handle handle) {
return handle->objects;
}
cxxrtl_handle cxxrtl_create(cxxrtl_toplevel design) {
return cxxrtl_create_at(design, "");
}
cxxrtl_handle cxxrtl_create_at(cxxrtl_toplevel design, const char *root) {
std::string path = root;
if (!path.empty()) {
// module::debug_info() accepts either an empty path, or a path ending in space to simplify
// the logic in generated code. While this is sketchy at best to expose in the C++ API, this
// would be a lot worse in the C API, so don't expose it here.
assert(path.back() != ' ');
path += ' ';
}
cxxrtl_handle handle = new _cxxrtl_handle;
handle->module = std::move(design->module);
handle->module->debug_info(handle->objects, path);
delete design;
return handle;
}
void cxxrtl_destroy(cxxrtl_handle handle) {
delete handle;
}
void cxxrtl_reset(cxxrtl_handle handle) {
handle->module->reset();
}
int cxxrtl_eval(cxxrtl_handle handle) {
return handle->module->eval();
}
int cxxrtl_commit(cxxrtl_handle handle) {
return handle->module->commit();
}
size_t cxxrtl_step(cxxrtl_handle handle) {
return handle->module->step();
}
struct cxxrtl_object *cxxrtl_get_parts(cxxrtl_handle handle, const char *name, size_t *parts) {
auto it = handle->objects.table.find(name);
if (it == handle->objects.table.end())
return nullptr;
*parts = it->second.size();
return static_cast<cxxrtl_object*>(&it->second[0]);
}
void cxxrtl_enum(cxxrtl_handle handle, void *data,
void (*callback)(void *data, const char *name,
cxxrtl_object *object, size_t parts)) {
for (auto &it : handle->objects.table)
callback(data, it.first.c_str(), static_cast<cxxrtl_object*>(&it.second[0]), it.second.size());
}
void cxxrtl_outline_eval(cxxrtl_outline outline) {
outline->eval();
}