MIPS64, part 1: Add MIPS64 support to interpreter.

Contributed by Djordje Kovacevic and Stefan Pejic from RT-RK.com.
Sponsored by Cisco Systems, Inc.

src/lj_frame.h

@@ -229,26 +229,41 @@ enum { LJ_CONT_TAILCALL, LJ_CONT_FFI_CALLBACK };  /* Special continuations. */
 #define CFRAME_SIZE		272
 #define CFRAME_SHIFT_MULTRES	3
 #endif
-#elif LJ_TARGET_MIPS
+#elif LJ_TARGET_MIPS32
 #if LJ_ARCH_HASFPU
 #define CFRAME_OFS_ERRF		124
 #define CFRAME_OFS_NRES		120
 #define CFRAME_OFS_PREV		116
 #define CFRAME_OFS_L		112
-#define CFRAME_OFS_PC		20
-#define CFRAME_OFS_MULTRES	16
 #define CFRAME_SIZE		112
-#define CFRAME_SHIFT_MULTRES	3
 #else
 #define CFRAME_OFS_ERRF		76
 #define CFRAME_OFS_NRES		72
 #define CFRAME_OFS_PREV		68
 #define CFRAME_OFS_L		64
+#define CFRAME_SIZE		64
+#endif
 #define CFRAME_OFS_PC		20
 #define CFRAME_OFS_MULTRES	16
-#define CFRAME_SIZE		64
 #define CFRAME_SHIFT_MULTRES	3
+#elif LJ_TARGET_MIPS64
+#if LJ_ARCH_HASFPU
+#define CFRAME_OFS_ERRF		188
+#define CFRAME_OFS_NRES		184
+#define CFRAME_OFS_PREV		176
+#define CFRAME_OFS_L		168
+#define CFRAME_OFS_PC		160
+#define CFRAME_SIZE		192
+#else
+#define CFRAME_OFS_ERRF		124
+#define CFRAME_OFS_NRES		120
+#define CFRAME_OFS_PREV		112
+#define CFRAME_OFS_L		104
+#define CFRAME_OFS_PC		96
+#define CFRAME_SIZE		128
 #endif
+#define CFRAME_OFS_MULTRES	0
+#define CFRAME_SHIFT_MULTRES	3
 #else
 #error "Missing CFRAME_* definitions for this architecture"
 #endif