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diff --git a/source/mupen64plus-core/src/r4300/recomp.h b/source/mupen64plus-core/src/r4300/recomp.h
new file mode 100644
index 0000000..f161520
--- /dev/null
+++ b/source/mupen64plus-core/src/r4300/recomp.h
@@ -0,0 +1,110 @@
+/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
+ *   Mupen64plus - recomp.h                                                *
+ *   Mupen64Plus homepage: http://code.google.com/p/mupen64plus/           *
+ *   Copyright (C) 2002 Hacktarux                                          *
+ *                                                                         *
+ *   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.          *
+ * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
+
+#ifndef RECOMP_H
+#define RECOMP_H
+
+#include <stddef.h>
+#if defined(__x86_64__)
+  #include "x86_64/assemble_struct.h"
+#else
+  #include "x86/assemble_struct.h"
+#endif
+
+typedef struct _precomp_instr
+{
+   void (*ops)(void);
+   union
+     {
+    struct
+      {
+         long long int *rs;
+         long long int *rt;
+         short immediate;
+      } i;
+    struct
+      {
+         unsigned int inst_index;
+      } j;
+    struct
+      {
+         long long int *rs;
+         long long int *rt;
+         long long int *rd;
+         unsigned char sa;
+         unsigned char nrd;
+      } r;
+    struct
+      {
+         unsigned char base;
+         unsigned char ft;
+         short offset;
+      } lf;
+    struct
+      {
+         unsigned char ft;
+         unsigned char fs;
+         unsigned char fd;
+      } cf;
+     } f;
+   unsigned int addr; /* word-aligned instruction address in r4300 address space */
+   unsigned int local_addr; /* byte offset to start of corresponding x86_64 instructions, from start of code block */
+   reg_cache_struct reg_cache_infos;
+} precomp_instr;
+
+typedef struct _precomp_block
+{
+   precomp_instr *block;
+   unsigned int start;
+   unsigned int end;
+   unsigned char *code;
+   unsigned int code_length;
+   unsigned int max_code_length;
+   void *jumps_table;
+   int jumps_number;
+   void *riprel_table;
+   int riprel_number;
+   //unsigned char md5[16];
+   unsigned int adler32;
+} precomp_block;
+
+void recompile_block(int *source, precomp_block *block, unsigned int func);
+void init_block(precomp_block *block);
+void free_block(precomp_block *block);
+void recompile_opcode(void);
+void prefetch_opcode(unsigned int op, unsigned int nextop);
+void dyna_jump(void);
+void dyna_start(void *code);
+void dyna_stop(void);
+void *realloc_exec(void *ptr, size_t oldsize, size_t newsize);
+
+extern precomp_instr *dst; /* precomp_instr structure for instruction being recompiled */
+
+#if defined(__x86_64__)
+  #include "x86_64/assemble.h"
+  #include "x86_64/regcache.h"
+#else
+  #include "x86/assemble.h"
+  #include "x86/regcache.h"
+#endif
+
+#endif
+