--- SheepShaver/src/Unix/sysdeps.h	2004/05/12 11:38:16	1.27
+++ SheepShaver/src/Unix/sysdeps.h	2006/05/02 19:33:10	1.52
@@ -1,7 +1,7 @@
 /*
  *  sysdeps.h - System dependent definitions for Linux
  *
- *  SheepShaver (C) 1997-2004 Christian Bauer and Marc Hellwig
+ *  SheepShaver (C) 1997-2005 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
@@ -41,6 +41,7 @@
 #include <assert.h>
 #include <stdio.h>
 #include <stdlib.h>
+#include <stddef.h>
 #include <string.h>
 #include <signal.h>
 
@@ -63,17 +64,37 @@
 # endif
 #endif
 
+// Fix offsetof() on FreeBSD and GCC >= 3.4
+#if defined(__FreeBSD__) && defined(__cplusplus)
+#undef offsetof
+/* The cast to "char &" below avoids problems with user-defined
+   "operator &", which can appear in a POD type.  */
+#define offsetof(TYPE, MEMBER)                          \
+  (__offsetof__ (reinterpret_cast <size_t>              \
+                 (&reinterpret_cast <char &>            \
+                  (static_cast<TYPE *> (0)->MEMBER))))
+#endif
+
 // Define for external components
 #define SHEEPSHAVER 1
 
-// Mac and host address space are the same
+// Always use Real Addressing mode on native architectures
+// Otherwise, use Direct Addressing mode if NATMEM_OFFSET is set
+#if !defined(EMULATED_PPC)
 #define REAL_ADDRESSING 1
+#include "ppc_asm.tmpl"
+#elif defined(NATMEM_OFFSET)
+#define DIRECT_ADDRESSING 1
+#else
+#define REAL_ADDRESSING 1
+#endif
+
+// Always use the complete non-stubs Ethernet driver
+#define USE_ETHER_FULL_DRIVER 1
 
 #define POWERPC_ROM 1
 
 #if EMULATED_PPC
-// Handle interrupts asynchronously?
-#define ASYNC_IRQ 0
 // Mac ROM is write protected when banked memory is used
 #if REAL_ADDRESSING || DIRECT_ADDRESSING
 # define ROM_IS_WRITE_PROTECTED 0
@@ -82,12 +103,19 @@
 # define ROM_IS_WRITE_PROTECTED 1
 #endif
 // Configure PowerPC emulator
-#define PPC_CHECK_INTERRUPTS (ASYNC_IRQ ? 0 : 1)
+#define PPC_REENTRANT_JIT 1
+#define PPC_CHECK_INTERRUPTS 1
 #define PPC_DECODE_CACHE 1
 #define PPC_FLIGHT_RECORDER 1
 #define PPC_PROFILE_COMPILE_TIME 0
 #define PPC_PROFILE_GENERIC_CALLS 0
 #define KPX_MAX_CPUS 1
+#if ENABLE_DYNGEN
+#define PPC_ENABLE_JIT 1
+#endif
+#if defined(__i386__)
+#define DYNGEN_ASM_OPTS 1
+#endif
 #else
 // Mac ROM is write protected
 #define ROM_IS_WRITE_PROTECTED 1
@@ -247,15 +275,14 @@ static inline int testandset(volatile in
 }
 #endif
 
-#ifdef __i386__
+#if defined(__i386__) || defined(__x86_64__)
 #define HAVE_TEST_AND_SET 1
 static inline int testandset(volatile int *p)
 {
-	int ret;
-	long int readval;
+	long int ret;
 	/* Note: the "xchg" instruction does not need a "lock" prefix */
-	__asm__ __volatile__("xchgl %0, %1"
-						 : "=r" (ret), "=m" (*p), "=a" (readval)
+	__asm__ __volatile__("xchgl %k0, %1"
+						 : "=r" (ret), "=m" (*p)
 						 : "0" (1), "m" (*p)
 						 : "memory");
 	return ret;
@@ -327,12 +354,13 @@ static inline int testandset(volatile in
 
 #endif /* __GNUC__ */
 
-#if HAVE_TEST_AND_SET
-#define HAVE_SPINLOCKS 1
 typedef volatile int spinlock_t;
 
 static const spinlock_t SPIN_LOCK_UNLOCKED = 0;
 
+#if defined(HAVE_TEST_AND_SET) && defined(HAVE_PTHREADS)
+// There is nothing to lock if we are not in an multithreaded environment
+#define HAVE_SPINLOCKS 1
 static inline void spin_lock(spinlock_t *lock)
 {
 	while (testandset(lock));
@@ -347,6 +375,19 @@ static inline int spin_trylock(spinlock_
 {
 	return !testandset(lock);
 }
+#else
+static inline void spin_lock(spinlock_t *lock)
+{
+}
+
+static inline void spin_unlock(spinlock_t *lock)
+{
+}
+
+static inline int spin_trylock(spinlock_t *lock)
+{
+	return 1;
+}
 #endif
 
 // Time data type for Time Manager emulation
@@ -356,11 +397,25 @@ typedef struct timespec tm_time_t;
 typedef struct timeval tm_time_t;
 #endif
 
+/* Define codes for all the float formats that we know of.
+ * Though we only handle IEEE format.  */
+#define UNKNOWN_FLOAT_FORMAT 0
+#define IEEE_FLOAT_FORMAT 1
+#define VAX_FLOAT_FORMAT 2
+#define IBM_FLOAT_FORMAT 3
+#define C4X_FLOAT_FORMAT 4
+
+// High-precision timing
+#if defined(HAVE_PTHREADS) && defined(HAVE_CLOCK_NANOSLEEP)
+#define PRECISE_TIMING 1
+#define PRECISE_TIMING_POSIX 1
+#endif
+
 // Timing functions
 extern uint64 GetTicks_usec(void);
 extern void Delay_usec(uint32 usec);
 
-#if defined(HAVE_PTHREADS) || (defined(__linux__) && defined(__powerpc__))
+#ifdef HAVE_PTHREADS
 // Setup pthread attributes
 extern void Set_pthread_attr(pthread_attr_t *attr, int priority);
 #endif
@@ -374,16 +429,16 @@ typedef struct rgb_color {
 } rgb_color;
 
 // X11 display fast locks
-#ifdef HAVE_SPINLOCKS
-#define X11_LOCK_TYPE spinlock_t
-#define X11_LOCK_INIT SPIN_LOCK_UNLOCKED
-#define XDisplayLock() spin_lock(&x_display_lock)
-#define XDisplayUnlock() spin_unlock(&x_display_lock)
-#elif defined(HAVE_PTHREADS)
+#if defined(HAVE_PTHREADS)
 #define X11_LOCK_TYPE pthread_mutex_t
 #define X11_LOCK_INIT PTHREAD_MUTEX_INITIALIZER
 #define XDisplayLock() pthread_mutex_lock(&x_display_lock);
 #define XDisplayUnlock() pthread_mutex_unlock(&x_display_lock);
+#elif defined(HAVE_SPINLOCKS)
+#define X11_LOCK_TYPE spinlock_t
+#define X11_LOCK_INIT SPIN_LOCK_UNLOCKED
+#define XDisplayLock() spin_lock(&x_display_lock)
+#define XDisplayUnlock() spin_unlock(&x_display_lock)
 #else
 #define XDisplayLock()
 #define XDisplayUnlock()
@@ -393,14 +448,14 @@ extern X11_LOCK_TYPE x_display_lock;
 #endif
 
 // Macro for calling MacOS routines
-#define CallMacOS(type, tvect) call_macos((uint32)tvect)
-#define CallMacOS1(type, tvect, arg1) call_macos1((uint32)tvect, (uint32)arg1)
-#define CallMacOS2(type, tvect, arg1, arg2) call_macos2((uint32)tvect, (uint32)arg1, (uint32)arg2)
-#define CallMacOS3(type, tvect, arg1, arg2, arg3) call_macos3((uint32)tvect, (uint32)arg1, (uint32)arg2, (uint32)arg3)
-#define CallMacOS4(type, tvect, arg1, arg2, arg3, arg4) call_macos4((uint32)tvect, (uint32)arg1, (uint32)arg2, (uint32)arg3, (uint32)arg4)
-#define CallMacOS5(type, tvect, arg1, arg2, arg3, arg4, arg5) call_macos5((uint32)tvect, (uint32)arg1, (uint32)arg2, (uint32)arg3, (uint32)arg4, (uint32)arg5)
-#define CallMacOS6(type, tvect, arg1, arg2, arg3, arg4, arg5, arg6) call_macos6((uint32)tvect, (uint32)arg1, (uint32)arg2, (uint32)arg3, (uint32)arg4, (uint32)arg5, (uint32)arg6)
-#define CallMacOS7(type, tvect, arg1, arg2, arg3, arg4, arg5, arg6, arg7) call_macos7((uint32)tvect, (uint32)arg1, (uint32)arg2, (uint32)arg3, (uint32)arg4, (uint32)arg5, (uint32)arg6, (uint32)arg7)
+#define CallMacOS(type, tvect) call_macos((uintptr)tvect)
+#define CallMacOS1(type, tvect, arg1) call_macos1((uintptr)tvect, (uintptr)arg1)
+#define CallMacOS2(type, tvect, arg1, arg2) call_macos2((uintptr)tvect, (uintptr)arg1, (uintptr)arg2)
+#define CallMacOS3(type, tvect, arg1, arg2, arg3) call_macos3((uintptr)tvect, (uintptr)arg1, (uintptr)arg2, (uintptr)arg3)
+#define CallMacOS4(type, tvect, arg1, arg2, arg3, arg4) call_macos4((uintptr)tvect, (uintptr)arg1, (uintptr)arg2, (uintptr)arg3, (uintptr)arg4)
+#define CallMacOS5(type, tvect, arg1, arg2, arg3, arg4, arg5) call_macos5((uintptr)tvect, (uintptr)arg1, (uintptr)arg2, (uintptr)arg3, (uintptr)arg4, (uintptr)arg5)
+#define CallMacOS6(type, tvect, arg1, arg2, arg3, arg4, arg5, arg6) call_macos6((uintptr)tvect, (uintptr)arg1, (uintptr)arg2, (uintptr)arg3, (uintptr)arg4, (uintptr)arg5, (uintptr)arg6)
+#define CallMacOS7(type, tvect, arg1, arg2, arg3, arg4, arg5, arg6, arg7) call_macos7((uintptr)tvect, (uintptr)arg1, (uintptr)arg2, (uintptr)arg3, (uintptr)arg4, (uintptr)arg5, (uintptr)arg6, (uintptr)arg7)
 
 #ifdef __cplusplus
 extern "C" {