[Kernel] Implement err:f

src/core/kernel/error.cpp

@@ -0,0 +1,45 @@
+#include "kernel.hpp"
+
+namespace Commands {
+	enum : u32 {
+		Throw = 0x00010800
+	};
+}
+
+namespace FatalErrorType {
+	enum : u32 {
+		Generic = 0,
+		Corrupted = 1,
+		CardRemoved = 2,
+		Exception = 3,
+		ResultFailure = 4,
+		Logged = 5
+	};
+}
+
+// Handle SendSyncRequest targetting the err:f port
+void Kernel::handleErrorSyncRequest(u32 messagePointer) {
+	u32 cmd = mem.read32(messagePointer);
+	switch (cmd) {
+		case Commands::Throw: throwError(messagePointer); break;
+
+		default:
+			Helpers::panic("Unimplemented err:f command %08X\n", cmd);
+			break;
+	}
+}
+
+void Kernel::throwError(u32 messagePointer) {
+	const auto type = mem.read8(messagePointer + 4); // Fatal error type
+	const u32 pc = mem.read32(messagePointer + 12);
+	const u32 pid = mem.read32(messagePointer + 16);
+	logError("Thrown fatal error @ %08X (pid = %X, type = %d)\n", pc, pid, type);
+
+	// Read the error message if type == 4
+	if (type == FatalErrorType::ResultFailure) {
+		const auto error = mem.readString(messagePointer + 0x24, 0x60);
+		logError("ERROR: %s\n", error.c_str());
+	}
+
+	Helpers::panic("Thrown fatal error");
+}