src/Windows/sysdeps.h

/*
 *  sysdeps.h - System dependent definitions for Windows
 *
 *  SheepShaver (C) 1997-2008 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_windows.h"

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

#include <assert.h>
#include <stdio.h>
#include <stdlib.h>
#include <stdint.h>
#include <string.h>
#include <time.h>
#ifdef __WIN32__
#include <windows.h>
#endif
#include <sys/types.h>


// Define for external components
#define SHEEPSHAVER 1
#define POWERPC_ROM 1
#define EMULATED_PPC 1
#define CONFIG_WIN32 1

// Use Direct Addressing mode
#define DIRECT_ADDRESSING 1
#define NATMEM_OFFSET 0x11000000

// Always use the complete (non-stubs based) Ethernet driver
#if DIRECT_ADDRESSING
#define USE_ETHER_FULL_DRIVER 1
#endif

// 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_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

// 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

// Define if the host processor supports fast unaligned load/stores
#if defined __i386__ || defined __x86_64__
#define UNALIGNED_PROFITABLE 1
#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  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

#define do_byteswap_16_g bswap_16
#define do_byteswap_16_c(x) \
     ((((x) >> 8) & 0xff) | (((x) & 0xff) << 8))

#define do_byteswap_32_g bswap_32
#define do_byteswap_32_c(x) \
     ((((x) & 0xff000000) >> 24) | (((x) & 0x00ff0000) >>  8) | \
      (((x) & 0x0000ff00) <<  8) | (((x) & 0x000000ff) << 24))

#if defined(__GNUC__)
#define do_byteswap_16(x)                                               \
                (__extension__                                                  \
                 ({ register uint16 __v, __x = (x);             \
                 if (__builtin_constant_p(__x))                 \
                   __v = do_byteswap_16_c(__x);                 \
                 else                                                                   \
                   __v = do_byteswap_16_g(__x);                 \
                 __v; }))

#define do_byteswap_32(x)                                               \
                (__extension__                                                  \
                 ({ register uint32 __v, __x = (x);             \
                 if (__builtin_constant_p(__x))                 \
                   __v = do_byteswap_32_c(__x);                 \
                 else                                                                   \
                   __v = do_byteswap_32_g(__x);                 \
                 __v; }))
#else
#define do_byteswap_16(x) do_byteswap_16_g(x)
#define do_byteswap_32(x) do_byteswap_32_g(x)
#endif

#if defined(__i386__) || defined(__x86_64__)
#define ntohl(x) do_byteswap_32(x)
#define ntohs(x) do_byteswap_16(x)
#define htonl(x) do_byteswap_32(x)
#define htons(x) do_byteswap_16(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

#if defined(__i386__) || defined(__x86_64__)
#define HAVE_TEST_AND_SET 1
static inline int testandset(volatile int *p)
{
        long int ret;
        /* Note: the "xchg" instruction does not need a "lock" prefix */
        __asm__ __volatile__("xchgl %k0, %1"
                                                 : "=r" (ret), "=m" (*p)
                                                 : "0" (1), "m" (*p)
                                                 : "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

#endif /* __GNUC__ */

typedef volatile int spinlock_t;

static const spinlock_t SPIN_LOCK_UNLOCKED = 0;

#if HAVE_TEST_AND_SET
#define HAVE_SPINLOCKS 1
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);
}
#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
typedef int64 tm_time_t;

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

// Various definitions
typedef struct rgb_color {
        uint8           red;
        uint8           green;
        uint8           blue;
        uint8           alpha;
} rgb_color;

// Macro for calling MacOS routines
#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" {
#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

// Misc platform specific definitions
#ifdef __WIN32__
typedef int64 loff_t;
#endif
#define ATTRIBUTE_PACKED __attribute__((__packed__))

#endif
Revision:	1.7
Committed:	2008-01-01T09:47:39Z (16 years, 10 months ago) by gbeauche
Content type:	text/plain
Branch:	MAIN
CVS Tags:	HEAD
Changes since 1.6:	+1 -1 lines
Log Message:	Happy New Year!
#	User	Rev	Content
1	gbeauche	1.1	/*
2			* sysdeps.h - System dependent definitions for Windows
3			*
4	gbeauche	1.7	* SheepShaver (C) 1997-2008 Christian Bauer and Marc Hellwig
5	gbeauche	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_windows.h"
30
31			#ifndef STDC_HEADERS
32			#error "You don't have ANSI C header files."
33			#endif
34
35			#include <assert.h>
36			#include <stdio.h>
37			#include <stdlib.h>
38			#include <stdint.h>
39			#include <string.h>
40	gbeauche	1.2	#include <time.h>
41			#ifdef __WIN32__
42	gbeauche	1.1	#include <windows.h>
43	gbeauche	1.2	#endif
44			#include <sys/types.h>
45
46	gbeauche	1.1
47			// Define for external components
48			#define SHEEPSHAVER 1
49			#define POWERPC_ROM 1
50			#define EMULATED_PPC 1
51	gbeauche	1.2	#define CONFIG_WIN32 1
52	gbeauche	1.1
53			// Use Direct Addressing mode
54			#define DIRECT_ADDRESSING 1
55	gbeauche	1.6	#define NATMEM_OFFSET 0x11000000
56	gbeauche	1.1
57	gbeauche	1.4	// Always use the complete (non-stubs based) Ethernet driver
58			#if DIRECT_ADDRESSING
59			#define USE_ETHER_FULL_DRIVER 1
60			#endif
61
62	gbeauche	1.1	// Mac ROM is write protected when banked memory is used
63			#if REAL_ADDRESSING \|\| DIRECT_ADDRESSING
64			# define ROM_IS_WRITE_PROTECTED 0
65			# define USE_SCRATCHMEM_SUBTERFUGE 1
66			#else
67			# define ROM_IS_WRITE_PROTECTED 1
68			#endif
69			// Configure PowerPC emulator
70			#define PPC_REENTRANT_JIT 1
71			#define PPC_CHECK_INTERRUPTS 1
72			#define PPC_DECODE_CACHE 1
73			#define PPC_FLIGHT_RECORDER 1
74			#define PPC_PROFILE_COMPILE_TIME 0
75			#define PPC_PROFILE_GENERIC_CALLS 0
76			#define KPX_MAX_CPUS 1
77			#if ENABLE_DYNGEN
78			#define PPC_ENABLE_JIT 1
79			#endif
80			#if defined(__i386__)
81			#define DYNGEN_ASM_OPTS 1
82			#endif
83
84			// Data types
85			typedef unsigned char uint8;
86			typedef signed char int8;
87			#if SIZEOF_SHORT == 2
88			typedef unsigned short uint16;
89			typedef short int16;
90			#elif SIZEOF_INT == 2
91			typedef unsigned int uint16;
92			typedef int int16;
93			#else
94			#error "No 2 byte type, you lose."
95			#endif
96			#if SIZEOF_INT == 4
97			typedef unsigned int uint32;
98			typedef int int32;
99			#elif SIZEOF_LONG == 4
100			typedef unsigned long uint32;
101			typedef long int32;
102			#else
103			#error "No 4 byte type, you lose."
104			#endif
105			#if SIZEOF_LONG == 8
106			typedef unsigned long uint64;
107			typedef long int64;
108			#define VAL64(a) (a ## l)
109			#define UVAL64(a) (a ## ul)
110			#elif SIZEOF_LONG_LONG == 8
111			typedef unsigned long long uint64;
112			typedef long long int64;
113			#define VAL64(a) (a ## LL)
114			#define UVAL64(a) (a ## uLL)
115			#else
116			#error "No 8 byte type, you lose."
117			#endif
118			#if SIZEOF_VOID_P == 4
119			typedef uint32 uintptr;
120			typedef int32 intptr;
121			#elif SIZEOF_VOID_P == 8
122			typedef uint64 uintptr;
123			typedef int64 intptr;
124			#else
125			#error "Unsupported size of pointer"
126			#endif
127
128	gbeauche	1.5	// Define if the host processor supports fast unaligned load/stores
129			#if defined __i386__ \|\| defined __x86_64__
130			#define UNALIGNED_PROFITABLE 1
131			#endif
132
133	gbeauche	1.1
134			/**
135			* Helper functions to byteswap data
136			**/
137
138			#if defined(__GNUC__)
139			#if defined(__x86_64__) \|\| defined(__i386__)
140			// Linux/AMD64 currently has no asm optimized bswap_32() in <byteswap.h>
141			#define opt_bswap_32 do_opt_bswap_32
142			static inline uint32 do_opt_bswap_32(uint32 x)
143			{
144			uint32 v;
145			__asm__ __volatile__ ("bswap %0" : "=r" (v) : "0" (x));
146			return v;
147			}
148			#endif
149			#endif
150
151			#ifdef opt_bswap_16
152			#undef bswap_16
153			#define bswap_16 opt_bswap_16
154			#endif
155			#ifndef bswap_16
156			#define bswap_16 generic_bswap_16
157			#endif
158
159			static inline uint16 generic_bswap_16(uint16 x)
160			{
161			return ((x & 0xff) << 8) \| ((x >> 8) & 0xff);
162			}
163
164			#ifdef opt_bswap_32
165			#undef bswap_32
166			#define bswap_32 opt_bswap_32
167			#endif
168			#ifndef bswap_32
169			#define bswap_32 generic_bswap_32
170			#endif
171
172			static inline uint32 generic_bswap_32(uint32 x)
173			{
174			return (((x & 0xff000000) >> 24) \|
175			((x & 0x00ff0000) >> 8) \|
176			((x & 0x0000ff00) << 8) \|
177			((x & 0x000000ff) << 24) );
178			}
179
180			#if defined(__i386__)
181			#define opt_bswap_64 do_opt_bswap_64
182			static inline uint64 do_opt_bswap_64(uint64 x)
183			{
184			return (bswap_32(x >> 32) \| (((uint64)bswap_32((uint32)x)) << 32));
185			}
186			#endif
187
188			#ifdef opt_bswap_64
189			#undef bswap_64
190			#define bswap_64 opt_bswap_64
191			#endif
192			#ifndef bswap_64
193			#define bswap_64 generic_bswap_64
194			#endif
195
196			static inline uint64 generic_bswap_64(uint64 x)
197			{
198			return (((x & UVAL64(0xff00000000000000)) >> 56) \|
199			((x & UVAL64(0x00ff000000000000)) >> 40) \|
200			((x & UVAL64(0x0000ff0000000000)) >> 24) \|
201			((x & UVAL64(0x000000ff00000000)) >> 8) \|
202			((x & UVAL64(0x00000000ff000000)) << 8) \|
203			((x & UVAL64(0x0000000000ff0000)) << 24) \|
204			((x & UVAL64(0x000000000000ff00)) << 40) \|
205			((x & UVAL64(0x00000000000000ff)) << 56) );
206			}
207
208			#ifdef WORDS_BIGENDIAN
209			static inline uint16 tswap16(uint16 x) { return x; }
210			static inline uint32 tswap32(uint32 x) { return x; }
211			static inline uint64 tswap64(uint64 x) { return x; }
212			#else
213			static inline uint16 tswap16(uint16 x) { return bswap_16(x); }
214			static inline uint32 tswap32(uint32 x) { return bswap_32(x); }
215			static inline uint64 tswap64(uint64 x) { return bswap_64(x); }
216			#endif
217
218			#define do_byteswap_16_g bswap_16
219			#define do_byteswap_16_c(x) \
220			((((x) >> 8) & 0xff) \| (((x) & 0xff) << 8))
221
222			#define do_byteswap_32_g bswap_32
223			#define do_byteswap_32_c(x) \
224			((((x) & 0xff000000) >> 24) \| (((x) & 0x00ff0000) >> 8) \| \
225			(((x) & 0x0000ff00) << 8) \| (((x) & 0x000000ff) << 24))
226
227			#if defined(__GNUC__)
228			#define do_byteswap_16(x) \
229			(__extension__ \
230			({ register uint16 __v, __x = (x); \
231			if (__builtin_constant_p(__x)) \
232			__v = do_byteswap_16_c(__x); \
233			else \
234			__v = do_byteswap_16_g(__x); \
235			__v; }))
236
237			#define do_byteswap_32(x) \
238			(__extension__ \
239			({ register uint32 __v, __x = (x); \
240			if (__builtin_constant_p(__x)) \
241			__v = do_byteswap_32_c(__x); \
242			else \
243			__v = do_byteswap_32_g(__x); \
244			__v; }))
245			#else
246			#define do_byteswap_16(x) do_byteswap_16_g(x)
247			#define do_byteswap_32(x) do_byteswap_32_g(x)
248			#endif
249
250			#if defined(__i386__) \|\| defined(__x86_64__)
251			#define ntohl(x) do_byteswap_32(x)
252			#define ntohs(x) do_byteswap_16(x)
253			#define htonl(x) do_byteswap_32(x)
254			#define htons(x) do_byteswap_16(x)
255			#endif
256
257
258			/*
259			* Spin locks
260			*/
261
262			#ifdef __GNUC__
263
264			#if defined(__powerpc__) \|\| defined(__ppc__)
265			#define HAVE_TEST_AND_SET 1
266			static inline int testandset(volatile int *p)
267			{
268			int ret;
269			__asm__ __volatile__("0: lwarx %0,0,%1\n"
270			" xor. %0,%3,%0\n"
271			" bne 1f\n"
272			" stwcx. %2,0,%1\n"
273			" bne- 0b\n"
274			"1: "
275			: "=&r" (ret)
276			: "r" (p), "r" (1), "r" (0)
277			: "cr0", "memory");
278			return ret;
279			}
280			#endif
281
282			#if defined(__i386__) \|\| defined(__x86_64__)
283			#define HAVE_TEST_AND_SET 1
284			static inline int testandset(volatile int *p)
285			{
286			long int ret;
287			/* Note: the "xchg" instruction does not need a "lock" prefix */
288			__asm__ __volatile__("xchgl %k0, %1"
289			: "=r" (ret), "=m" (*p)
290			: "0" (1), "m" (*p)
291			: "memory");
292			return ret;
293			}
294			#endif
295
296			#ifdef __alpha__
297			#define HAVE_TEST_AND_SET 1
298			static inline int testandset(volatile int *p)
299			{
300			int ret;
301			unsigned long one;
302
303			__asm__ __volatile__("0: mov 1,%2\n"
304			" ldl_l %0,%1\n"
305			" stl_c %2,%1\n"
306			" beq %2,1f\n"
307			".subsection 2\n"
308			"1: br 0b\n"
309			".previous"
310			: "=r" (ret), "=m" (*p), "=r" (one)
311			: "m" (*p));
312			return ret;
313			}
314			#endif
315
316			#endif /* __GNUC__ */
317
318			typedef volatile int spinlock_t;
319
320			static const spinlock_t SPIN_LOCK_UNLOCKED = 0;
321
322			#if HAVE_TEST_AND_SET
323			#define HAVE_SPINLOCKS 1
324			static inline void spin_lock(spinlock_t *lock)
325			{
326			while (testandset(lock));
327			}
328
329			static inline void spin_unlock(spinlock_t *lock)
330			{
331			*lock = 0;
332			}
333
334			static inline int spin_trylock(spinlock_t *lock)
335			{
336			return !testandset(lock);
337			}
338			#else
339			static inline void spin_lock(spinlock_t *lock)
340			{
341			}
342
343			static inline void spin_unlock(spinlock_t *lock)
344			{
345			}
346
347			static inline int spin_trylock(spinlock_t *lock)
348			{
349			return 1;
350			}
351			#endif
352
353			// Time data type for Time Manager emulation
354			typedef int64 tm_time_t;
355
356			// Timing functions
357			extern void timer_init(void);
358			extern uint64 GetTicks_usec(void);
359			extern void Delay_usec(uint32 usec);
360
361			// Various definitions
362			typedef struct rgb_color {
363			uint8 red;
364			uint8 green;
365			uint8 blue;
366			uint8 alpha;
367			} rgb_color;
368
369			// Macro for calling MacOS routines
370			#define CallMacOS(type, tvect) call_macos((uintptr)tvect)
371			#define CallMacOS1(type, tvect, arg1) call_macos1((uintptr)tvect, (uintptr)arg1)
372			#define CallMacOS2(type, tvect, arg1, arg2) call_macos2((uintptr)tvect, (uintptr)arg1, (uintptr)arg2)
373			#define CallMacOS3(type, tvect, arg1, arg2, arg3) call_macos3((uintptr)tvect, (uintptr)arg1, (uintptr)arg2, (uintptr)arg3)
374			#define CallMacOS4(type, tvect, arg1, arg2, arg3, arg4) call_macos4((uintptr)tvect, (uintptr)arg1, (uintptr)arg2, (uintptr)arg3, (uintptr)arg4)
375			#define CallMacOS5(type, tvect, arg1, arg2, arg3, arg4, arg5) call_macos5((uintptr)tvect, (uintptr)arg1, (uintptr)arg2, (uintptr)arg3, (uintptr)arg4, (uintptr)arg5)
376			#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)
377			#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)
378
379			#ifdef __cplusplus
380			extern "C" {
381			#endif
382			extern uint32 call_macos(uint32 tvect);
383			extern uint32 call_macos1(uint32 tvect, uint32 arg1);
384			extern uint32 call_macos2(uint32 tvect, uint32 arg1, uint32 arg2);
385			extern uint32 call_macos3(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3);
386			extern uint32 call_macos4(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3, uint32 arg4);
387			extern uint32 call_macos5(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3, uint32 arg4, uint32 arg5);
388			extern uint32 call_macos6(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3, uint32 arg4, uint32 arg5, uint32 arg6);
389			extern uint32 call_macos7(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3, uint32 arg4, uint32 arg5, uint32 arg6, uint32 arg7);
390			#ifdef __cplusplus
391			}
392			#endif
393
394			// Misc platform specific definitions
395	gbeauche	1.2	#ifdef __WIN32__
396	gbeauche	1.1	typedef int64 loff_t;
397	gbeauche	1.2	#endif
398	gbeauche	1.1	#define ATTRIBUTE_PACKED __attribute__((__packed__))
399
400			#endif