diff --git a/finalize/finalize.cpp b/finalize/finalize.cpp
index e7899bf..dda1fe6 100644
--- a/finalize/finalize.cpp
+++ b/finalize/finalize.cpp
@@ -3,7 +3,7 @@
 /*
 <sourcefile>.spslr:
 
-SPSLR_FINALIZE_HEADER <CU filename> <CU uid symbol>
+SPSLR <CU filename> <CU uid symbol>
 target <name> <local uid> <size> <field count>
 f <offset> <size> <flags>
 f <offset> <size> <flags>
diff --git a/pinpoint/final/on_finish_unit.cpp b/pinpoint/final/on_finish_unit.cpp
index 708b173..b01144f 100644
--- a/pinpoint/final/on_finish_unit.cpp
+++ b/pinpoint/final/on_finish_unit.cpp
@@ -4,6 +4,7 @@
 #include <stage1.h>
 #include <string>
 #include <filesystem>
+#include <fstream>
 
 #include <safe-input.h>
 #include <safe-output.h>
@@ -98,6 +99,15 @@ static void emit_cu_uid_label(const std::string& uid) {
 	fprintf(asm_out_file, "%s:\n", label);
 }
 
+static std::ofstream open_spslr_output_file(const std::filesystem::path& p) {
+	std::filesystem::create_directories(p.parent_path());
+	std::ofstream out(p);
+	if (!out)
+		pinpoint_fatal("open_spslr_output_file failed to open spslr dump file");
+
+	return std::move(out);
+}
+
 void on_finish_unit(void* plugin_data, void* user_data) {
 	std::filesystem::path infile = relative_src_path();
 	std::filesystem::path outfile = spslr_output_file(infile);
@@ -110,20 +120,45 @@ void on_finish_unit(void* plugin_data, void* user_data) {
 
 	emit_cu_uid_label(cu_uid);
 
-	// TODO -> Dump to outfile
+	// Dump all accumulated data to spslr file
 
-	for (const auto& [uid, target] : TargetType::all())
-		std::cout << "    Target " << uid << " -> \"" << target.name() << "\" (" << target.size() << ")" << std::endl;
+	std::ofstream out = open_spslr_output_file(outfile);
+
+	// Header associates data with compilation unit
+
+	out << "SPSLR " << infile.string() << " " << cu_uid << std::endl;
+
+	// Dump all target structs
+
+	for (const auto& [uid, target] : TargetType::all()) {
+		// target <name> <local uid> <size> <field count>
+		out << "target " << target.name() << " " << uid << " " << target.size()
+			<< " " << target.fields().size() << std::endl;
+
+		if (!target.has_fields())
+			pinpoint_fatal("on_finish_unit encountered incomplete target type");
+
+		for (const auto& [off, field] : target.fields()) {
+			// f <offset> <size> <flags>
+			out << "f " << field.offset << " " << field.size << " " << field.flags << std::endl;
+		}
+	}
+
+	// Dump all data pins
 
 	for (const DataPin& dpin : DataPin::all()) {
-		std::cout << "    " << (dpin.global ? "Global" : "Local") << " data pin at symbol \""
-			<< dpin.symbol << "\":" << std::endl;
-		for (const DataPin::Component& c : dpin.components)
-			std::cout << "        offset " << c.offset << " (level " << c.level << ") -> target " << c.target << std::endl;
+		for (const DataPin::Component& c : dpin.components) {
+			// dpin <local/global> <symbol> <offset> <level> <target uid>
+			out << "dpin " << (dpin.global ? "g" : "l") << " " << dpin.symbol << " "
+				<< c.offset << " " << c.level << " " << c.target << std::endl;
+		}
 	}
 
+	// Dump all instruction pins
+
 	for (const auto& [uid, ipin] : S1InstructionPin::all()) {
-		std::cout << "    Instruction pin at symbol \"" << SPSLR_PINPOINT_STAGE1_PIN
-			<< uid << "\" -> target " << ipin.target << ", offset " << ipin.offset << std::endl;
+		// ipin <label> <target uid> <field offset>
+		out << "ipin " << SPSLR_PINPOINT_STAGE1_PIN << uid << " "
+			<< ipin.target << " " << ipin.offset << std::endl;
 	}
 }
diff --git a/pinpoint/stage0/stage0.h b/pinpoint/stage0/stage0.h
index 49caa36..9441cc6 100644
--- a/pinpoint/stage0/stage0.h
+++ b/pinpoint/stage0/stage0.h
@@ -42,7 +42,8 @@ public:
 	~TargetType();
 
 	bool valid() const;
-	bool fields() const;
+	bool has_fields() const;
+	const std::map<std::size_t, Field>& fields() const;
 	std::string name() const;
 	const Field* field(std::size_t off, bool exact = true) const;
 	UID uid() const;
diff --git a/pinpoint/stage0/target.cpp b/pinpoint/stage0/target.cpp
index 3df8bd7..8538b2d 100644
--- a/pinpoint/stage0/target.cpp
+++ b/pinpoint/stage0/target.cpp
@@ -26,10 +26,14 @@ bool TargetType::valid() const {
 	return (m_flags & FLAG_MAIN_VARIANT) != 0;
 }
 
-bool TargetType::fields() const {
+bool TargetType::has_fields() const {
 	return (m_flags & FLAG_FIELDS) != 0;
 }
 
+const std::map<std::size_t, TargetType::Field>& TargetType::fields() const {
+	return m_fields;
+}
+
 std::string TargetType::name() const {
 	const char* error_name = "<error>";
 	const char* anonymous_name = "<anonymous>";