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diff --git a/source/mupen64plus-rsp-z64/src/z64.h b/source/mupen64plus-rsp-z64/src/z64.h
new file mode 100644
index 0000000..0a57679
--- /dev/null
+++ b/source/mupen64plus-rsp-z64/src/z64.h
@@ -0,0 +1,90 @@
+/*
+ * z64
+ *
+ * Copyright (C) 2007  ziggy
+ *
+ * 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 _Z64_H_
+#define _Z64_H_
+#include <stdint.h>
+
+#define DACRATE_NTSC    (48681812)
+#define DACRATE_PAL     (49656530)
+#define DACRATE_MPAL    (48628316)
+
+#define SP_INTERRUPT    0x1
+#define SI_INTERRUPT    0x2
+#define AI_INTERRUPT    0x4
+#define VI_INTERRUPT    0x8
+#define PI_INTERRUPT    0x10
+#define DP_INTERRUPT    0x20
+
+#define SP_STATUS_HALT                  0x0001
+#define SP_STATUS_BROKE                 0x0002
+#define SP_STATUS_DMABUSY               0x0004
+#define SP_STATUS_DMAFULL               0x0008
+#define SP_STATUS_IOFULL                0x0010
+#define SP_STATUS_SSTEP                 0x0020
+#define SP_STATUS_INTR_BREAK            0x0040
+#define SP_STATUS_SIGNAL0               0x0080
+#define SP_STATUS_SIGNAL1               0x0100
+#define SP_STATUS_SIGNAL2               0x0200
+#define SP_STATUS_SIGNAL3               0x0400
+#define SP_STATUS_SIGNAL4               0x0800
+#define SP_STATUS_SIGNAL5               0x1000
+#define SP_STATUS_SIGNAL6               0x2000
+#define SP_STATUS_SIGNAL7               0x4000
+
+#define DP_STATUS_XBUS_DMA              0x01
+#define DP_STATUS_FREEZE                0x02
+#define DP_STATUS_FLUSH                 0x04
+#define DP_STATUS_START_GCLK            0x008
+#define DP_STATUS_TMEM_BUSY             0x010
+#define DP_STATUS_PIPE_BUSY             0x020
+#define DP_STATUS_CMD_BUSY              0x040
+#define DP_STATUS_CBUF_READY            0x080
+#define DP_STATUS_DMA_BUSY              0x100
+#define DP_STATUS_END_VALID             0x200
+#define DP_STATUS_START_VALID           0x400
+
+#define R4300i_SP_Intr 1
+
+
+#define LSB_FIRST 1 // TODO : check for platform
+#ifdef LSB_FIRST
+    #define BYTE_ADDR_XOR           3
+    #define WORD_ADDR_XOR           1
+    #define BYTE4_XOR_BE(a)         ((a) ^ 3)           /* read/write a byte to a 32-bit space */
+#else
+    #define BYTE_ADDR_XOR           0
+    #define WORD_ADDR_XOR           0
+    #define BYTE4_XOR_BE(a)         (a)
+#endif
+
+
+typedef uint64_t UINT64;
+typedef int64_t INT64;
+typedef uint32_t UINT32;
+typedef int32_t INT32;
+typedef uint16_t UINT16;
+typedef int16_t INT16;
+typedef uint8_t UINT8;
+typedef int8_t INT8;
+typedef unsigned int offs_t;
+#endif
+