diff options
Diffstat (limited to 'backends/cxxrtl/cxxrtl.h')
| -rw-r--r-- | backends/cxxrtl/cxxrtl.h | 29 |
1 files changed, 28 insertions, 1 deletions
diff --git a/backends/cxxrtl/cxxrtl.h b/backends/cxxrtl/cxxrtl.h index c988c9e80..bc3162981 100644 --- a/backends/cxxrtl/cxxrtl.h +++ b/backends/cxxrtl/cxxrtl.h @@ -716,6 +716,9 @@ struct metadata { typedef std::map<std::string, metadata> metadata_map; +// Helper class to disambiguate values/wires and their aliases. +struct debug_alias {}; + // This structure is intended for consumption via foreign function interfaces, like Python's ctypes. // Because of this it uses a C-style layout that is easy to parse rather than more idiomatic C++. // @@ -726,6 +729,7 @@ struct debug_item : ::cxxrtl_object { VALUE = CXXRTL_VALUE, WIRE = CXXRTL_WIRE, MEMORY = CXXRTL_MEMORY, + ALIAS = CXXRTL_ALIAS, }; debug_item(const ::cxxrtl_object &object) : cxxrtl_object(object) {} @@ -748,7 +752,7 @@ struct debug_item : ::cxxrtl_object { type = VALUE; width = Bits; depth = 1; - curr = const_cast<uint32_t*>(item.data); + curr = const_cast<chunk_t*>(item.data); next = nullptr; } @@ -774,6 +778,29 @@ struct debug_item : ::cxxrtl_object { curr = item.data.empty() ? nullptr : item.data[0].data; next = nullptr; } + + template<size_t Bits> + debug_item(debug_alias, const value<Bits> &item) { + static_assert(sizeof(item) == value<Bits>::chunks * sizeof(chunk_t), + "value<Bits> is not compatible with C layout"); + type = ALIAS; + width = Bits; + depth = 1; + curr = const_cast<chunk_t*>(item.data); + next = nullptr; + } + + template<size_t Bits> + debug_item(debug_alias, const wire<Bits> &item) { + static_assert(sizeof(item.curr) == value<Bits>::chunks * sizeof(chunk_t) && + sizeof(item.next) == value<Bits>::chunks * sizeof(chunk_t), + "wire<Bits> is not compatible with C layout"); + type = ALIAS; + width = Bits; + depth = 1; + curr = const_cast<chunk_t*>(item.curr.data); + next = nullptr; + } }; static_assert(std::is_standard_layout<debug_item>::value, "debug_item is not compatible with C layout"); |