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root/cebix/SheepShaver/src/Unix/sysdeps.h
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Comparing SheepShaver/src/Unix/sysdeps.h (file contents):
Revision 1.40 by gbeauche, 2005-03-05T19:07:35Z vs.
Revision 1.47 by gbeauche, 2005-07-03T13:39:06Z

# Line 83 | Line 83
83   #if !defined(EMULATED_PPC)
84   #define REAL_ADDRESSING 1
85   #include "ppc_asm.tmpl"
86 #elif defined(__CYGWIN__)
87 #define DIRECT_ADDRESSING 1
88 #define DIRECT_ADDRESSING_HACK 1
89 /*
90  The following address translation functions were empirically
91  determined on a Windows XP system running Cygwin 1.5.12-1 so
92  that RAM size can be maximized (up to 960 MB) and avoiding
93  the use of a TLB. This also takes into account reduced address
94  space available when the Cygwin runtime is used.
95 */
96 #define DIRECT_ADDRESSING_VIRT2PHYS(ADDR) \
97        ((ADDR) + (((ADDR)  < 0x41000000) ? 0x39000000 : 0xcf800000))
98 #define DIRECT_ADDRESSING_PHYS2VIRT(ADDR) \
99        ((ADDR) - (((ADDR) >= 0x39000000) ? 0x39000000 : 0xcf800000))
86   #elif defined(NATMEM_OFFSET)
87   #define DIRECT_ADDRESSING 1
88   #else
# Line 288 | Line 274 | static inline int testandset(volatile in
274   }
275   #endif
276  
277 < /* FIXME: SheepShaver occasionnally hangs with those locks */
292 < #if 0 && (defined(__i386__) || defined(__x86_64__))
277 > #if defined(__i386__) || defined(__x86_64__)
278   #define HAVE_TEST_AND_SET 1
279   static inline int testandset(volatile int *p)
280   {
# Line 372 | Line 357 | typedef volatile int spinlock_t;
357  
358   static const spinlock_t SPIN_LOCK_UNLOCKED = 0;
359  
360 < #if HAVE_TEST_AND_SET
360 > #if defined(HAVE_TEST_AND_SET) && defined(HAVE_PTHREADS)
361 > // There is nothing to lock if we are not in an multithreaded environment
362   #define HAVE_SPINLOCKS 1
363   static inline void spin_lock(spinlock_t *lock)
364   {
# Line 410 | Line 396 | typedef struct timespec tm_time_t;
396   typedef struct timeval tm_time_t;
397   #endif
398  
399 + /* Define codes for all the float formats that we know of.
400 + * Though we only handle IEEE format.  */
401 + #define UNKNOWN_FLOAT_FORMAT 0
402 + #define IEEE_FLOAT_FORMAT 1
403 + #define VAX_FLOAT_FORMAT 2
404 + #define IBM_FLOAT_FORMAT 3
405 + #define C4X_FLOAT_FORMAT 4
406 +
407   // High-precision timing
408   #if defined(HAVE_PTHREADS) && defined(HAVE_CLOCK_NANOSLEEP)
409   #define PRECISE_TIMING 1
# Line 420 | Line 414 | typedef struct timeval tm_time_t;
414   extern uint64 GetTicks_usec(void);
415   extern void Delay_usec(uint32 usec);
416  
417 < #if defined(HAVE_PTHREADS) || ((defined(__linux__) || defined(__NetBSD__)) && defined(__powerpc__))
417 > #ifdef HAVE_PTHREADS
418   // Setup pthread attributes
419   extern void Set_pthread_attr(pthread_attr_t *attr, int priority);
420   #endif
# Line 434 | Line 428 | typedef struct rgb_color {
428   } rgb_color;
429  
430   // X11 display fast locks
431 < #ifdef HAVE_SPINLOCKS
438 < #define X11_LOCK_TYPE spinlock_t
439 < #define X11_LOCK_INIT SPIN_LOCK_UNLOCKED
440 < #define XDisplayLock() spin_lock(&x_display_lock)
441 < #define XDisplayUnlock() spin_unlock(&x_display_lock)
442 < #elif defined(HAVE_PTHREADS)
431 > #if defined(HAVE_PTHREADS)
432   #define X11_LOCK_TYPE pthread_mutex_t
433   #define X11_LOCK_INIT PTHREAD_MUTEX_INITIALIZER
434   #define XDisplayLock() pthread_mutex_lock(&x_display_lock);
435   #define XDisplayUnlock() pthread_mutex_unlock(&x_display_lock);
436 + #elif defined(HAVE_SPINLOCKS)
437 + #define X11_LOCK_TYPE spinlock_t
438 + #define X11_LOCK_INIT SPIN_LOCK_UNLOCKED
439 + #define XDisplayLock() spin_lock(&x_display_lock)
440 + #define XDisplayUnlock() spin_unlock(&x_display_lock)
441   #else
442   #define XDisplayLock()
443   #define XDisplayUnlock()

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