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diff --git a/source/mupen64plus-core/src/api/common.c b/source/mupen64plus-core/src/api/common.c
new file mode 100644
index 0000000..492c089
--- /dev/null
+++ b/source/mupen64plus-core/src/api/common.c
@@ -0,0 +1,109 @@
+/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
+ *   Mupen64plus-core - api/common.c                                       *
+ *   Mupen64Plus homepage: http://code.google.com/p/mupen64plus/           *
+ *   Copyright (C) 2009 Richard Goedeken                                   *
+ *                                                                         *
+ *   This program is free software; you can redistribute it and/or modify  *
+ *   it under the terms of the GNU General Public License as published by  *
+ *   the Free Software Foundation; either version 2 of the License, or     *
+ *   (at your option) any later version.                                   *
+ *                                                                         *
+ *   This program is distributed in the hope that it will be useful,       *
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
+ *   GNU General Public License for more details.                          *
+ *                                                                         *
+ *   You should have received a copy of the GNU General Public License     *
+ *   along with this program; if not, write to the                         *
+ *   Free Software Foundation, Inc.,                                       *
+ *   51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.          *
+ * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
+
+/* This file contains the Core common functions which will be exported
+ * outside of the core library.
+ */
+
+#include <stdlib.h>
+
+#define M64P_CORE_PROTOTYPES 1
+#include "m64p_types.h"
+#include "m64p_common.h"
+#include "../main/version.h"
+
+EXPORT m64p_error CALL PluginGetVersion(m64p_plugin_type *PluginType, int *PluginVersion, int *APIVersion, const char **PluginNamePtr, int *Capabilities)
+{
+    /* set version info */
+    if (PluginType != NULL)
+        *PluginType = M64PLUGIN_CORE;
+
+    if (PluginVersion != NULL)
+        *PluginVersion = MUPEN_CORE_VERSION;
+
+    if (APIVersion != NULL)
+        *APIVersion = FRONTEND_API_VERSION;
+    
+    if (PluginNamePtr != NULL)
+        *PluginNamePtr = MUPEN_CORE_NAME;
+
+    if (Capabilities != NULL)
+    {
+        *Capabilities = 0;
+#if defined(DBG)
+        *Capabilities |= M64CAPS_DEBUGGER;
+#endif
+#if defined(DYNAREC)
+        *Capabilities |= M64CAPS_DYNAREC;
+#endif
+#if defined(COMPARE_CORE)
+        *Capabilities |= M64CAPS_CORE_COMPARE;
+#endif
+    }
+                    
+    return M64ERR_SUCCESS;
+}
+
+EXPORT m64p_error CALL CoreGetAPIVersions(int *ConfigVersion, int *DebugVersion, int *VidextVersion, int *ExtraVersion)
+{
+    /* set version info */
+    if (ConfigVersion != NULL)
+        *ConfigVersion = CONFIG_API_VERSION;
+
+    if (DebugVersion != NULL)
+        *DebugVersion = DEBUG_API_VERSION;
+
+    if (VidextVersion != NULL)
+        *VidextVersion = VIDEXT_API_VERSION;
+
+    if (ExtraVersion != NULL)
+        *ExtraVersion = 0;
+
+    return M64ERR_SUCCESS;
+}
+
+static const char *ErrorMessages[] = {
+                   "SUCCESS: No error",
+                   "NOT_INIT: A function was called before it's associated module was initialized",
+                   "ALREADY_INIT: Initialization function called twice",
+                   "INCOMPATIBLE: API versions between components are incompatible",
+                   "INPUT_ASSERT: Invalid function parameters, such as a NULL pointer",
+                   "INPUT_INVALID: An input function parameter is logically invalid",
+                   "INPUT_NOT_FOUND: The input parameter(s) specified a particular item which was not found",
+                   "NO_MEMORY: Memory allocation failed",
+                   "FILES: Error opening, creating, reading, or writing to a file",
+                   "INTERNAL: logical inconsistency in program code.  Probably a bug.",
+                   "INVALID_STATE: An operation was requested which is not allowed in the current state",
+                   "PLUGIN_FAIL: A plugin function returned a fatal error",
+                   "SYSTEM_FAIL: A system function call, such as an SDL or file operation, failed",
+                   "UNSUPPORTED: Function call is not supported (ie, core not built with debugger)",
+                   "WRONG_TYPE: A given input type parameter cannot be used for desired operation" };
+
+EXPORT const char * CALL CoreErrorMessage(m64p_error ReturnCode)
+{
+    int i = (int) ReturnCode;
+
+    if (i < 0 || i > (sizeof(ErrorMessages) / sizeof(char *)))
+        return "ERROR: Invalid m64p_error code given to CoreErrorMessage()";
+
+    return ErrorMessages[i];
+}
+