--- SheepShaver/src/include/cpu_emulation.h	2004/01/10 08:46:57	1.9
+++ SheepShaver/src/include/cpu_emulation.h	2004/05/31 09:04:44	1.12
@@ -1,7 +1,7 @@
 /*
  *  cpu_emulation.h - Definitions for CPU emulation and Mac memory access
  *
- *  SheepShaver (C) 1997-2002 Christian Bauer and Marc Hellwig
+ *  SheepShaver (C) 1997-2004 Christian Bauer and Marc Hellwig
  *
  *  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
@@ -31,6 +31,8 @@ const uintptr ROM_BASE = 0x40800000;			/
 const uint32  ROM_SIZE = 0x400000;				// Size of ROM file
 const uint32  ROM_AREA_SIZE = 0x500000;			// Size of ROM area
 const uintptr ROM_END = ROM_BASE + ROM_SIZE;	// End of ROM
+const uintptr DR_EMULATOR_BASE = 0x68070000;	// Address of DR emulator code
+const uint32  DR_EMULATOR_SIZE = 0x10000;		// Size of DR emulator code
 const uintptr DR_CACHE_BASE = 0x69000000;		// Address of DR cache
 const uint32  DR_CACHE_SIZE = 0x80000;			// Size of DR Cache
 
@@ -97,6 +99,15 @@ static inline void *Mac2Mac_memcpy(uint3
 #define PW(X) ((((X) >> 8) & 0xff) | (((X) & 0xff) << 8))
 #endif
 
+// PowerPC procedure helper to write a big-endian 32-bit word
+#ifdef WORDS_BIGENDIAN
+#define PL(X) X
+#else
+#define PL(X)													\
+     ((((X) & 0xff000000) >> 24) | (((X) & 0x00ff0000) >>  8) |	\
+      (((X) & 0x0000ff00) <<  8) | (((X) & 0x000000ff) << 24))
+#endif
+
 struct M68kRegisters;
 extern void Execute68k(uint32, M68kRegisters *r);			// Execute 68k subroutine from EMUL_OP routine, must be ended with RTS
 extern void Execute68kTrap(uint16 trap, M68kRegisters *r);	// Execute 68k A-Trap from EMUL_OP routine