src/Unix/sysdeps.h

/*
 *  sysdeps.h - System dependent definitions for Linux
 *
 *  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
 *  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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

#ifndef SYSDEPS_H
#define SYSDEPS_H

#ifndef __STDC__
#error "Your compiler is not ANSI. Get a real one."
#endif

#include "config.h"
#include "user_strings_unix.h"

#ifndef STDC_HEADERS
#error "You don't have ANSI C header files."
#endif

#ifdef HAVE_UNISTD_H
# include <sys/types.h>
# include <unistd.h>
#endif

#include <netinet/in.h>
#include <assert.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <signal.h>

#ifdef HAVE_PTHREADS
# include <pthread.h>
#endif

#ifdef HAVE_FCNTL_H
# include <fcntl.h>
#endif

#ifdef TIME_WITH_SYS_TIME
# include <sys/time.h>
# include <time.h>
#else
# ifdef HAVE_SYS_TIME_H
#  include <sys/time.h>
# else
#  include <time.h>
# endif
#endif

// Define for external components
#define SHEEPSHAVER 1

// Mac and host address space are the same
#define REAL_ADDRESSING 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
# define USE_SCRATCHMEM_SUBTERFUGE 1
#else
# define ROM_IS_WRITE_PROTECTED 1
#endif
// Configure PowerPC emulator
#define PPC_CHECK_INTERRUPTS (ASYNC_IRQ ? 0 : 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 defined(__i386__)
#define DYNGEN_ASM_OPTS 1
#endif
#else
// Mac ROM is write protected
#define ROM_IS_WRITE_PROTECTED 1
#define USE_SCRATCHMEM_SUBTERFUGE 0
#endif

// Data types
typedef unsigned char uint8;
typedef signed char int8;
#if SIZEOF_SHORT == 2
typedef unsigned short uint16;
typedef short int16;
#elif SIZEOF_INT == 2
typedef unsigned int uint16;
typedef int int16;
#else
#error "No 2 byte type, you lose."
#endif
#if SIZEOF_INT == 4
typedef unsigned int uint32;
typedef int int32;
#elif SIZEOF_LONG == 4
typedef unsigned long uint32;
typedef long int32;
#else
#error "No 4 byte type, you lose."
#endif
#if SIZEOF_LONG == 8
typedef unsigned long uint64;
typedef long int64;
#define VAL64(a) (a ## l)
#define UVAL64(a) (a ## ul)
#elif SIZEOF_LONG_LONG == 8
typedef unsigned long long uint64;
typedef long long int64;
#define VAL64(a) (a ## LL)
#define UVAL64(a) (a ## uLL)
#else
#error "No 8 byte type, you lose."
#endif
#if SIZEOF_VOID_P == 4
typedef uint32 uintptr;
typedef int32 intptr;
#elif SIZEOF_VOID_P == 8
typedef uint64 uintptr;
typedef int64 intptr;
#else
#error "Unsupported size of pointer"
#endif

/**
 *              Helper functions to byteswap data
 **/

#if defined(__GNUC__)
#if defined(__x86_64__) || defined(__i386__)
// Linux/AMD64 currently has no asm optimized bswap_32() in <byteswap.h>
#define opt_bswap_32 do_opt_bswap_32
static inline uint32 do_opt_bswap_32(uint32 x)
{
  uint32 v;
  __asm__ __volatile__ ("bswap %0" : "=r" (v) : "0" (x));
  return v;
}
#endif
#endif

#ifdef HAVE_BYTESWAP_H
#include <byteswap.h>
#endif

#ifdef  opt_bswap_16
#undef  bswap_16
#define bswap_16 opt_bswap_16
#endif
#ifndef bswap_16
#define bswap_16 generic_bswap_16
#endif

static inline uint16 generic_bswap_16(uint16 x)
{
  return ((x & 0xff) << 8) | ((x >> 8) & 0xff);
}

#ifdef  opt_bswap_32
#undef  bswap_32
#define bswap_32 opt_bswap_32
#endif
#ifndef bswap_32
#define bswap_32 generic_bswap_32
#endif

static inline uint32 generic_bswap_32(uint32 x)
{
  return (((x & 0xff000000) >> 24) |
                  ((x & 0x00ff0000) >>  8) |
                  ((x & 0x0000ff00) <<  8) |
                  ((x & 0x000000ff) << 24) );
}

#if defined(__i386__)
#define opt_bswap_64 do_opt_bswap_64
static inline uint64 do_opt_bswap_64(uint64 x)
{
  return (bswap_32(x >> 32) | (((uint64)bswap_32((uint32)x)) << 32));
}
#endif

#ifdef  opt_bswap_64
#undef  bswap_64
#define bswap_64 opt_bswap_64
#endif
#ifndef bswap_64
#define bswap_64 generic_bswap_64
#endif

static inline uint64 generic_bswap_64(uint64 x)
{
  return (((x & UVAL64(0xff00000000000000)) >> 56) |
                  ((x & UVAL64(0x00ff000000000000)) >> 40) |
                  ((x & UVAL64(0x0000ff0000000000)) >> 24) |
                  ((x & UVAL64(0x000000ff00000000)) >>  8) |
                  ((x & UVAL64(0x00000000ff000000)) <<  8) |
                  ((x & UVAL64(0x0000000000ff0000)) << 24) |
                  ((x & UVAL64(0x000000000000ff00)) << 40) |
                  ((x & UVAL64(0x00000000000000ff)) << 56) );
}

#ifdef WORDS_BIGENDIAN
static inline uint16 tswap16(uint16 x) { return x; }
static inline uint32 tswap32(uint32 x) { return x; }
static inline uint64 tswap64(uint64 x) { return x; }
#else
static inline uint16 tswap16(uint16 x) { return bswap_16(x); }
static inline uint32 tswap32(uint32 x) { return bswap_32(x); }
static inline uint64 tswap64(uint64 x) { return bswap_64(x); }
#endif

// spin locks
#ifdef __GNUC__

#if defined(__powerpc__) || defined(__ppc__)
#define HAVE_TEST_AND_SET 1
static inline int testandset(volatile int *p)
{
        int ret;
        __asm__ __volatile__("0:    lwarx       %0,0,%1\n"
                                                 "      xor.    %0,%3,%0\n"
                                                 "      bne             1f\n"
                                                 "      stwcx.  %2,0,%1\n"
                                                 "      bne-    0b\n"
                                                 "1:    "
                                                 : "=&r" (ret)
                                                 : "r" (p), "r" (1), "r" (0)
                                                 : "cr0", "memory");
        return ret;
}
#endif

#ifdef __i386__
#define HAVE_TEST_AND_SET 1
static inline int testandset(volatile int *p)
{
        int ret;
        long int readval;
        /* Note: the "xchg" instruction does not need a "lock" prefix */
        __asm__ __volatile__("xchgl %0, %1"
                                                 : "=r" (ret), "=m" (*p), "=a" (readval)
                                                 : "0" (1), "m" (*p)
                                                 : "memory");
        return ret;
}
#endif

#ifdef __s390__
#define HAVE_TEST_AND_SET 1
static inline int testandset(volatile int *p)
{
        int ret;

        __asm__ __volatile__("0: cs    %0,%1,0(%2)\n"
                                                 "   jl    0b"
                                                 : "=&d" (ret)
                                                 : "r" (1), "a" (p), "0" (*p) 
                                                 : "cc", "memory" );
        return ret;
}
#endif

#ifdef __alpha__
#define HAVE_TEST_AND_SET 1
static inline int testandset(volatile int *p)
{
        int ret;
        unsigned long one;

        __asm__ __volatile__("0:        mov 1,%2\n"
                                                 "      ldl_l %0,%1\n"
                                                 "      stl_c %2,%1\n"
                                                 "      beq %2,1f\n"
                                                 ".subsection 2\n"
                                                 "1:    br 0b\n"
                                                 ".previous"
                                                 : "=r" (ret), "=m" (*p), "=r" (one)
                                                 : "m" (*p));
        return ret;
}
#endif

#ifdef __sparc__
#define HAVE_TEST_AND_SET 1
static inline int testandset(volatile int *p)
{
        int ret;

        __asm__ __volatile__("ldstub    [%1], %0"
                                                 : "=r" (ret)
                                                 : "r" (p)
                                                 : "memory");

        return (ret ? 1 : 0);
}
#endif

#ifdef __arm__
#define HAVE_TEST_AND_SET 1
static inline int testandset(volatile int *p)
{
        register unsigned int ret;
        __asm__ __volatile__("swp %0, %1, [%2]"
                                                 : "=r"(ret)
                                                 : "0"(1), "r"(p));
        
        return ret;
}
#endif

#endif /* __GNUC__ */

#if HAVE_TEST_AND_SET
#define HAVE_SPINLOCKS 1
typedef volatile int spinlock_t;

static const spinlock_t SPIN_LOCK_UNLOCKED = 0;

static inline void spin_lock(spinlock_t *lock)
{
        while (testandset(lock));
}

static inline void spin_unlock(spinlock_t *lock)
{
        *lock = 0;
}

static inline int spin_trylock(spinlock_t *lock)
{
        return !testandset(lock);
}
#endif

// Time data type for Time Manager emulation
#ifdef HAVE_CLOCK_GETTIME
typedef struct timespec tm_time_t;
#else
typedef struct timeval tm_time_t;
#endif

// Timing functions
extern uint64 GetTicks_usec(void);
extern void Delay_usec(uint32 usec);

#if defined(HAVE_PTHREADS) || (defined(__linux__) && defined(__powerpc__))
// Setup pthread attributes
extern void Set_pthread_attr(pthread_attr_t *attr, int priority);
#endif

// Various definitions
typedef struct rgb_color {
        uint8           red;
        uint8           green;
        uint8           blue;
        uint8           alpha;
} 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)
#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);
#else
#define XDisplayLock()
#define XDisplayUnlock()
#endif
#ifdef X11_LOCK_TYPE
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)

#ifdef __cplusplus
extern "C" {
#endif
extern uint32 call_macos(uint32 tvect);
extern uint32 call_macos1(uint32 tvect, uint32 arg1);
extern uint32 call_macos2(uint32 tvect, uint32 arg1, uint32 arg2);
extern uint32 call_macos3(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3);
extern uint32 call_macos4(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3, uint32 arg4);
extern uint32 call_macos5(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3, uint32 arg4, uint32 arg5);
extern uint32 call_macos6(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3, uint32 arg4, uint32 arg5, uint32 arg6);
extern uint32 call_macos7(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3, uint32 arg4, uint32 arg5, uint32 arg6, uint32 arg7);
#ifdef __cplusplus
}
#endif

#endif
Revision:	1.28
Committed:	2004-05-14T08:25:30Z (20 years, 6 months ago) by gbeauche
Content type:	text/plain
Branch:	MAIN
Changes since 1.27:	+3 -0 lines
Log Message:	Use assembly optimizations on x86 for adde/addo/etc. emulation
#	User	Rev	Content
1	cebix	1.1	/*
2			* sysdeps.h - System dependent definitions for Linux
3			*
4	cebix	1.21	* SheepShaver (C) 1997-2004 Christian Bauer and Marc Hellwig
5	cebix	1.1	*
6			* This program is free software; you can redistribute it and/or modify
7			* it under the terms of the GNU General Public License as published by
8			* the Free Software Foundation; either version 2 of the License, or
9			* (at your option) any later version.
10			*
11			* This program is distributed in the hope that it will be useful,
12			* but WITHOUT ANY WARRANTY; without even the implied warranty of
13			* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14			* GNU General Public License for more details.
15			*
16			* You should have received a copy of the GNU General Public License
17			* along with this program; if not, write to the Free Software
18			* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
19			*/
20
21			#ifndef SYSDEPS_H
22			#define SYSDEPS_H
23
24			#ifndef __STDC__
25			#error "Your compiler is not ANSI. Get a real one."
26			#endif
27
28			#include "config.h"
29			#include "user_strings_unix.h"
30
31			#ifndef STDC_HEADERS
32			#error "You don't have ANSI C header files."
33			#endif
34
35			#ifdef HAVE_UNISTD_H
36			# include <sys/types.h>
37			# include <unistd.h>
38			#endif
39
40			#include <netinet/in.h>
41			#include <assert.h>
42			#include <stdio.h>
43			#include <stdlib.h>
44			#include <string.h>
45			#include <signal.h>
46
47	gbeauche	1.24	#ifdef HAVE_PTHREADS
48			# include <pthread.h>
49			#endif
50
51	cebix	1.1	#ifdef HAVE_FCNTL_H
52			# include <fcntl.h>
53			#endif
54
55			#ifdef TIME_WITH_SYS_TIME
56			# include <sys/time.h>
57			# include <time.h>
58			#else
59			# ifdef HAVE_SYS_TIME_H
60			# include <sys/time.h>
61			# else
62			# include <time.h>
63			# endif
64			#endif
65
66	gbeauche	1.5	// Define for external components
67			#define SHEEPSHAVER 1
68
69	gbeauche	1.4	// Mac and host address space are the same
70			#define REAL_ADDRESSING 1
71
72	gbeauche	1.5	#define POWERPC_ROM 1
73
74			#if EMULATED_PPC
75	gbeauche	1.7	// Handle interrupts asynchronously?
76			#define ASYNC_IRQ 0
77	gbeauche	1.5	// Mac ROM is write protected when banked memory is used
78			#if REAL_ADDRESSING \|\| DIRECT_ADDRESSING
79			# define ROM_IS_WRITE_PROTECTED 0
80			# define USE_SCRATCHMEM_SUBTERFUGE 1
81	cebix	1.1	#else
82	gbeauche	1.5	# define ROM_IS_WRITE_PROTECTED 1
83			#endif
84	gbeauche	1.9	// Configure PowerPC emulator
85	gbeauche	1.13	#define PPC_CHECK_INTERRUPTS (ASYNC_IRQ ? 0 : 1)
86	gbeauche	1.14	#define PPC_DECODE_CACHE 1
87	gbeauche	1.10	#define PPC_FLIGHT_RECORDER 1
88	gbeauche	1.17	#define PPC_PROFILE_COMPILE_TIME 0
89			#define PPC_PROFILE_GENERIC_CALLS 0
90	gbeauche	1.16	#define KPX_MAX_CPUS 1
91	gbeauche	1.28	#if defined(__i386__)
92			#define DYNGEN_ASM_OPTS 1
93			#endif
94	gbeauche	1.5	#else
95			// Mac ROM is write protected
96			#define ROM_IS_WRITE_PROTECTED 1
97			#define USE_SCRATCHMEM_SUBTERFUGE 0
98	cebix	1.1	#endif
99
100			// Data types
101			typedef unsigned char uint8;
102			typedef signed char int8;
103			#if SIZEOF_SHORT == 2
104			typedef unsigned short uint16;
105			typedef short int16;
106			#elif SIZEOF_INT == 2
107			typedef unsigned int uint16;
108			typedef int int16;
109			#else
110			#error "No 2 byte type, you lose."
111			#endif
112			#if SIZEOF_INT == 4
113			typedef unsigned int uint32;
114			typedef int int32;
115			#elif SIZEOF_LONG == 4
116			typedef unsigned long uint32;
117			typedef long int32;
118			#else
119			#error "No 4 byte type, you lose."
120			#endif
121			#if SIZEOF_LONG == 8
122			typedef unsigned long uint64;
123			typedef long int64;
124	gbeauche	1.3	#define VAL64(a) (a ## l)
125			#define UVAL64(a) (a ## ul)
126	cebix	1.1	#elif SIZEOF_LONG_LONG == 8
127			typedef unsigned long long uint64;
128			typedef long long int64;
129	gbeauche	1.3	#define VAL64(a) (a ## LL)
130			#define UVAL64(a) (a ## uLL)
131	cebix	1.1	#else
132			#error "No 8 byte type, you lose."
133			#endif
134	gbeauche	1.3	#if SIZEOF_VOID_P == 4
135			typedef uint32 uintptr;
136			typedef int32 intptr;
137			#elif SIZEOF_VOID_P == 8
138			typedef uint64 uintptr;
139			typedef int64 intptr;
140			#else
141			#error "Unsupported size of pointer"
142	gbeauche	1.5	#endif
143
144	gbeauche	1.15	/**
145			* Helper functions to byteswap data
146			**/
147
148			#if defined(__GNUC__)
149	gbeauche	1.23	#if defined(__x86_64__) \|\| defined(__i386__)
150	gbeauche	1.15	// Linux/AMD64 currently has no asm optimized bswap_32() in <byteswap.h>
151			#define opt_bswap_32 do_opt_bswap_32
152			static inline uint32 do_opt_bswap_32(uint32 x)
153			{
154			uint32 v;
155			__asm__ __volatile__ ("bswap %0" : "=r" (v) : "0" (x));
156			return v;
157			}
158			#endif
159			#endif
160
161	gbeauche	1.5	#ifdef HAVE_BYTESWAP_H
162			#include <byteswap.h>
163			#endif
164
165	gbeauche	1.15	#ifdef opt_bswap_16
166			#undef bswap_16
167			#define bswap_16 opt_bswap_16
168			#endif
169	gbeauche	1.5	#ifndef bswap_16
170			#define bswap_16 generic_bswap_16
171			#endif
172
173			static inline uint16 generic_bswap_16(uint16 x)
174			{
175			return ((x & 0xff) << 8) \| ((x >> 8) & 0xff);
176			}
177
178	gbeauche	1.15	#ifdef opt_bswap_32
179			#undef bswap_32
180			#define bswap_32 opt_bswap_32
181			#endif
182	gbeauche	1.5	#ifndef bswap_32
183			#define bswap_32 generic_bswap_32
184			#endif
185
186			static inline uint32 generic_bswap_32(uint32 x)
187			{
188			return (((x & 0xff000000) >> 24) \|
189			((x & 0x00ff0000) >> 8) \|
190			((x & 0x0000ff00) << 8) \|
191			((x & 0x000000ff) << 24) );
192			}
193	gbeauche	1.23
194			#if defined(__i386__)
195			#define opt_bswap_64 do_opt_bswap_64
196			static inline uint64 do_opt_bswap_64(uint64 x)
197			{
198			return (bswap_32(x >> 32) \| (((uint64)bswap_32((uint32)x)) << 32));
199			}
200			#endif
201	gbeauche	1.5
202	gbeauche	1.15	#ifdef opt_bswap_64
203			#undef bswap_64
204			#define bswap_64 opt_bswap_64
205			#endif
206	gbeauche	1.5	#ifndef bswap_64
207			#define bswap_64 generic_bswap_64
208			#endif
209
210			static inline uint64 generic_bswap_64(uint64 x)
211			{
212			return (((x & UVAL64(0xff00000000000000)) >> 56) \|
213			((x & UVAL64(0x00ff000000000000)) >> 40) \|
214			((x & UVAL64(0x0000ff0000000000)) >> 24) \|
215			((x & UVAL64(0x000000ff00000000)) >> 8) \|
216			((x & UVAL64(0x00000000ff000000)) << 8) \|
217			((x & UVAL64(0x0000000000ff0000)) << 24) \|
218			((x & UVAL64(0x000000000000ff00)) << 40) \|
219			((x & UVAL64(0x00000000000000ff)) << 56) );
220			}
221
222			#ifdef WORDS_BIGENDIAN
223			static inline uint16 tswap16(uint16 x) { return x; }
224			static inline uint32 tswap32(uint32 x) { return x; }
225			static inline uint64 tswap64(uint64 x) { return x; }
226			#else
227			static inline uint16 tswap16(uint16 x) { return bswap_16(x); }
228			static inline uint32 tswap32(uint32 x) { return bswap_32(x); }
229			static inline uint64 tswap64(uint64 x) { return bswap_64(x); }
230	gbeauche	1.3	#endif
231	cebix	1.1
232	gbeauche	1.6	// spin locks
233			#ifdef __GNUC__
234
235	gbeauche	1.22	#if defined(__powerpc__) \|\| defined(__ppc__)
236	gbeauche	1.6	#define HAVE_TEST_AND_SET 1
237	gbeauche	1.20	static inline int testandset(volatile int *p)
238	gbeauche	1.6	{
239			int ret;
240	gbeauche	1.22	__asm__ __volatile__("0: lwarx %0,0,%1\n"
241			" xor. %0,%3,%0\n"
242			" bne 1f\n"
243			" stwcx. %2,0,%1\n"
244			" bne- 0b\n"
245	gbeauche	1.6	"1: "
246			: "=&r" (ret)
247			: "r" (p), "r" (1), "r" (0)
248			: "cr0", "memory");
249			return ret;
250			}
251			#endif
252
253			#ifdef __i386__
254			#define HAVE_TEST_AND_SET 1
255	gbeauche	1.20	static inline int testandset(volatile int *p)
256	gbeauche	1.6	{
257	gbeauche	1.20	int ret;
258	gbeauche	1.6	long int readval;
259	gbeauche	1.20	/* Note: the "xchg" instruction does not need a "lock" prefix */
260			__asm__ __volatile__("xchgl %0, %1"
261			: "=r" (ret), "=m" (*p), "=a" (readval)
262			: "0" (1), "m" (*p)
263	gbeauche	1.6	: "memory");
264			return ret;
265			}
266			#endif
267
268			#ifdef __s390__
269			#define HAVE_TEST_AND_SET 1
270	gbeauche	1.20	static inline int testandset(volatile int *p)
271	gbeauche	1.6	{
272			int ret;
273
274			__asm__ __volatile__("0: cs %0,%1,0(%2)\n"
275			" jl 0b"
276			: "=&d" (ret)
277			: "r" (1), "a" (p), "0" (*p)
278			: "cc", "memory" );
279			return ret;
280			}
281			#endif
282
283			#ifdef __alpha__
284			#define HAVE_TEST_AND_SET 1
285	gbeauche	1.20	static inline int testandset(volatile int *p)
286	gbeauche	1.6	{
287			int ret;
288			unsigned long one;
289
290			__asm__ __volatile__("0: mov 1,%2\n"
291			" ldl_l %0,%1\n"
292			" stl_c %2,%1\n"
293			" beq %2,1f\n"
294			".subsection 2\n"
295			"1: br 0b\n"
296			".previous"
297			: "=r" (ret), "=m" (*p), "=r" (one)
298			: "m" (*p));
299			return ret;
300			}
301			#endif
302
303			#ifdef __sparc__
304			#define HAVE_TEST_AND_SET 1
305	gbeauche	1.20	static inline int testandset(volatile int *p)
306	gbeauche	1.6	{
307			int ret;
308
309			__asm__ __volatile__("ldstub [%1], %0"
310			: "=r" (ret)
311			: "r" (p)
312			: "memory");
313
314			return (ret ? 1 : 0);
315			}
316			#endif
317
318			#ifdef __arm__
319			#define HAVE_TEST_AND_SET 1
320	gbeauche	1.20	static inline int testandset(volatile int *p)
321	gbeauche	1.6	{
322			register unsigned int ret;
323			__asm__ __volatile__("swp %0, %1, [%2]"
324			: "=r"(ret)
325			: "0"(1), "r"(p));
326
327			return ret;
328			}
329			#endif
330
331			#endif /* __GNUC__ */
332
333			#if HAVE_TEST_AND_SET
334			#define HAVE_SPINLOCKS 1
335	gbeauche	1.20	typedef volatile int spinlock_t;
336	gbeauche	1.6
337	gbeauche	1.8	static const spinlock_t SPIN_LOCK_UNLOCKED = 0;
338	gbeauche	1.6
339			static inline void spin_lock(spinlock_t *lock)
340			{
341			while (testandset(lock));
342			}
343
344			static inline void spin_unlock(spinlock_t *lock)
345			{
346			*lock = 0;
347			}
348
349			static inline int spin_trylock(spinlock_t *lock)
350			{
351			return !testandset(lock);
352			}
353			#endif
354
355	cebix	1.1	// Time data type for Time Manager emulation
356			#ifdef HAVE_CLOCK_GETTIME
357			typedef struct timespec tm_time_t;
358			#else
359			typedef struct timeval tm_time_t;
360			#endif
361
362	gbeauche	1.18	// Timing functions
363			extern uint64 GetTicks_usec(void);
364			extern void Delay_usec(uint32 usec);
365
366	gbeauche	1.25	#if defined(HAVE_PTHREADS) \|\| (defined(__linux__) && defined(__powerpc__))
367	cebix	1.2	// Setup pthread attributes
368			extern void Set_pthread_attr(pthread_attr_t *attr, int priority);
369	gbeauche	1.24	#endif
370	cebix	1.2
371	cebix	1.1	// Various definitions
372			typedef struct rgb_color {
373			uint8 red;
374			uint8 green;
375			uint8 blue;
376			uint8 alpha;
377			} rgb_color;
378
379	gbeauche	1.19	// X11 display fast locks
380			#ifdef HAVE_SPINLOCKS
381			#define X11_LOCK_TYPE spinlock_t
382			#define X11_LOCK_INIT SPIN_LOCK_UNLOCKED
383			#define XDisplayLock() spin_lock(&x_display_lock)
384			#define XDisplayUnlock() spin_unlock(&x_display_lock)
385			#elif defined(HAVE_PTHREADS)
386			#define X11_LOCK_TYPE pthread_mutex_t
387			#define X11_LOCK_INIT PTHREAD_MUTEX_INITIALIZER
388			#define XDisplayLock() pthread_mutex_lock(&x_display_lock);
389			#define XDisplayUnlock() pthread_mutex_unlock(&x_display_lock);
390			#else
391			#define XDisplayLock()
392			#define XDisplayUnlock()
393			#endif
394			#ifdef X11_LOCK_TYPE
395			extern X11_LOCK_TYPE x_display_lock;
396			#endif
397
398	cebix	1.1	// Macro for calling MacOS routines
399			#define CallMacOS(type, tvect) call_macos((uint32)tvect)
400			#define CallMacOS1(type, tvect, arg1) call_macos1((uint32)tvect, (uint32)arg1)
401			#define CallMacOS2(type, tvect, arg1, arg2) call_macos2((uint32)tvect, (uint32)arg1, (uint32)arg2)
402			#define CallMacOS3(type, tvect, arg1, arg2, arg3) call_macos3((uint32)tvect, (uint32)arg1, (uint32)arg2, (uint32)arg3)
403			#define CallMacOS4(type, tvect, arg1, arg2, arg3, arg4) call_macos4((uint32)tvect, (uint32)arg1, (uint32)arg2, (uint32)arg3, (uint32)arg4)
404			#define CallMacOS5(type, tvect, arg1, arg2, arg3, arg4, arg5) call_macos5((uint32)tvect, (uint32)arg1, (uint32)arg2, (uint32)arg3, (uint32)arg4, (uint32)arg5)
405			#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)
406			#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)
407
408	gbeauche	1.3	#ifdef __cplusplus
409			extern "C" {
410			#endif
411			extern uint32 call_macos(uint32 tvect);
412			extern uint32 call_macos1(uint32 tvect, uint32 arg1);
413			extern uint32 call_macos2(uint32 tvect, uint32 arg1, uint32 arg2);
414			extern uint32 call_macos3(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3);
415			extern uint32 call_macos4(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3, uint32 arg4);
416			extern uint32 call_macos5(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3, uint32 arg4, uint32 arg5);
417			extern uint32 call_macos6(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3, uint32 arg4, uint32 arg5, uint32 arg6);
418			extern uint32 call_macos7(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3, uint32 arg4, uint32 arg5, uint32 arg6, uint32 arg7);
419			#ifdef __cplusplus
420			}
421			#endif
422	cebix	1.1
423			#endif