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cxxrtl: include attributes in performer::on_print callback.

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Catherine 2024-01-16 16:17:10 +00:00
parent 905f07c03f
commit 5a1fcdea13
2 changed files with 31 additions and 28 deletions
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54
backends/cxxrtl/runtime/cxxrtl/cxxrtl.h
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@ -892,33 +892,6 @@ struct fmt_part {
}
};
// An object that can be passed to a `eval()` method in order to act on side effects.
struct performer {
// Called to evaluate a Verilog `$time` expression.
virtual int64_t time() const { return 0; }
// Called to evaluate a Verilog `$realtime` expression.
virtual double realtime() const { return time(); }
// Called when a `$print` cell is triggered.
virtual void on_print(const std::string &output) { std::cout << output; }
};
// An object that can be passed to a `commit()` method in order to produce a replay log of every state change in
// the simulation. Unlike `performer`, `observer` does not use virtual calls as their overhead is unacceptable, and
// a comparatively heavyweight template-based solution is justified.
struct observer {
// Called when the `commit()` method for a wire is about to update the `chunks` chunks at `base` with `chunks` chunks
// at `value` that have a different bit pattern. It is guaranteed that `chunks` is equal to the wire chunk count and
// `base` points to the first chunk.
void on_update(size_t chunks, const chunk_t *base, const chunk_t *value) {}
// Called when the `commit()` method for a memory is about to update the `chunks` chunks at `&base[chunks * index]`
// with `chunks` chunks at `value` that have a different bit pattern. It is guaranteed that `chunks` is equal to
// the memory element chunk count and `base` points to the first chunk of the first element of the memory.
void on_update(size_t chunks, const chunk_t *base, const chunk_t *value, size_t index) {}
};
template<size_t Bits>
struct wire {
static constexpr size_t bits = Bits;
@ -1100,6 +1073,33 @@ struct metadata {
typedef std::map<std::string, metadata> metadata_map;
// An object that can be passed to a `eval()` method in order to act on side effects.
struct performer {
// Called to evaluate a Verilog `$time` expression.
virtual int64_t time() const { return 0; }
// Called to evaluate a Verilog `$realtime` expression.
virtual double realtime() const { return time(); }
// Called when a `$print` cell is triggered.
virtual void on_print(const std::string &output, const metadata_map &attributes) { std::cout << output; }
};
// An object that can be passed to a `commit()` method in order to produce a replay log of every state change in
// the simulation. Unlike `performer`, `observer` does not use virtual calls as their overhead is unacceptable, and
// a comparatively heavyweight template-based solution is justified.
struct observer {
// Called when the `commit()` method for a wire is about to update the `chunks` chunks at `base` with `chunks` chunks
// at `value` that have a different bit pattern. It is guaranteed that `chunks` is equal to the wire chunk count and
// `base` points to the first chunk.
void on_update(size_t chunks, const chunk_t *base, const chunk_t *value) {}
// Called when the `commit()` method for a memory is about to update the `chunks` chunks at `&base[chunks * index]`
// with `chunks` chunks at `value` that have a different bit pattern. It is guaranteed that `chunks` is equal to
// the memory element chunk count and `base` points to the first chunk of the first element of the memory.
void on_update(size_t chunks, const chunk_t *base, const chunk_t *value, size_t index) {}
};
// Tag class to disambiguate values/wires and their aliases.
struct debug_alias {};