refactor mappers

2 files changed, 38 insertions, 1 deletions

diff --git a/lib/nes/util/CMakeLists.txt b/lib/nes/util/CMakeLists.txt
index fdbc939..6f5c112 100644
--- a/lib/nes/util/CMakeLists.txt
+++ b/lib/nes/util/CMakeLists.txt
@@ -7,4 +7,5 @@ target_sources(
 		debug.hh
 		display.hh
         rgb.hh
-		snapshot.hh)
\ No newline at end of file
+		snapshot.hh
+		status.hh)
\ No newline at end of file
diff --git a/lib/nes/util/status.hh b/lib/nes/util/status.hh
new file mode 100644
index 0000000..64f5969
--- /dev/null
+++ b/lib/nes/util/status.hh
@@ -0,0 +1,36 @@
+#pragma once
+
+namespace nes
+{
+	/// A status code.
+	enum class status
+	{
+		success,
+		error_uninitialized,
+		error_system_error,
+		error_invalid_ines_data,
+		error_unsupported_mapper,
+		error_unsupported_instruction,
+	};
+
+	constexpr auto to_string(status const status) -> char const*
+	{
+		switch (status)
+		{
+			case status::success:
+				return "Success";
+			case status::error_uninitialized:
+				return "Uninitialized";
+			case status::error_system_error:
+				return "System error";
+			case status::error_invalid_ines_data:
+				return "Invalid iNES data";
+			case status::error_unsupported_mapper:
+				return "Unsupported mapper";
+			case status::error_unsupported_instruction:
+				return "Unsupported instruction";
+		}
+
+		return "(invalid)";
+	}
+} // namespace nes
\ No newline at end of file