From 80f77eb3d9f72245bf3484af91276a82d23022e8 Mon Sep 17 00:00:00 2001
From: dinkc64 <12570148+dinkc64@users.noreply.github.com>
Date: Sun, 20 Apr 2014 14:05:45 +0000
Subject: [PATCH] A little modification on the W32 side - backup savestate
 before overwriting it.

---
 src/burner/state.cpp | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/src/burner/state.cpp b/src/burner/state.cpp
index bafe8b5f7..311446675 100644
--- a/src/burner/state.cpp
+++ b/src/burner/state.cpp
@@ -289,7 +289,8 @@ INT32 BurnStateSave(TCHAR* szName, INT32 bAll)
 {
 	const char szHeader[] = "FB1 ";						// File identifier
 	INT32 nLen = 0, nVer = 0;
-	INT32 nRet = 0;
+        INT32 nRet = 0;
+        TCHAR szBackupName[1024] = _T("");
 
 	if (bAll) {											// Get amount of data
 		StateInfo(&nLen, &nVer, 1);
@@ -299,7 +300,12 @@ INT32 BurnStateSave(TCHAR* szName, INT32 bAll)
 	if (nLen <= 0) {									// No data, so exit without creating a savestate
 		return 0;										// Don't return an error code
 	}
-
+#ifdef _WIN32
+        // backup last savestate just incase - dink
+        _stprintf(szBackupName, _T("%s.backup"), szName);
+        DeleteFileW(szBackupName);
+        MoveFileW(szName, szBackupName);
+#endif
 	FILE* fp = _tfopen(szName, _T("wb"));
 	if (fp == NULL) {
 		return 1;