regs and we can step into!

src/backend/backend.cpp

@@ -2,6 +2,26 @@
 
 using namespace dbgui::backend;
 
-Backend::~Backend() {
-    
+Backend::~Backend() {}
+
+void Backend::send_state_change(TargetState new_state, StateChangeReason reason)
+{
+	auto msg = std::make_unique<BackToFront::Msg>(
+	  BackToFront::MsgType::state_change,
+	  BackToFront::StateChange{new_state, reason});
+	this->send_msg(std::move(msg));
+}
+
+void Backend::send_proc_info(BackToFront::InitialProcessInfo &&info)
+{
+	auto msg = std::make_unique<BackToFront::Msg>(
+	  BackToFront::MsgType::initial_proc_info, std::move(info));
+	this->send_msg(std::move(msg));
+}
+
+void Backend::send_reg_change(BackToFront::RegsChanged &&info)
+{
+	auto msg = std::make_unique<BackToFront::Msg>(
+	  BackToFront::MsgType::regs_changed, std::move(info));
+	this->send_msg(std::move(msg));
 }