src/Unix/sysdeps.h

/*
 *  sysdeps.h - System dependent definitions for Unix
 *
 *  Basilisk II (C) 1997-2008 Christian Bauer
 *
 *  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>

#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

#if defined(__MACH__)
#include <mach/clock.h>
#endif

#ifdef ENABLE_NATIVE_M68K

/* Mac and host address space are the same */
#define REAL_ADDRESSING 1

/* Using 68k natively */
#define EMULATED_68K 0

/* Mac ROM is not write protected */
#define ROM_IS_WRITE_PROTECTED 0
#define USE_SCRATCHMEM_SUBTERFUGE 1

#else

/* Mac and host address space are distinct */
#ifndef REAL_ADDRESSING
#define REAL_ADDRESSING 0
#endif

/* Using 68k emulator */
#define EMULATED_68K 1

/* The m68k emulator uses a prefetch buffer ? */
#define USE_PREFETCH_BUFFER 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

#endif

/* Direct Addressing requires Video on SEGV signals in plain X11 mode */
#if DIRECT_ADDRESSING && (!ENABLE_VOSF && !USE_SDL_VIDEO)
# undef  ENABLE_VOSF
# define ENABLE_VOSF 1
#endif

/* ExtFS is supported */
#define SUPPORTS_EXTFS 1

/* BSD socket API supported */
#define SUPPORTS_UDP_TUNNEL 1

/* Use the CPU emulator to check for periodic tasks? */
#ifdef HAVE_PTHREADS
#define USE_PTHREADS_SERVICES
#endif
#if EMULATED_68K
#if defined(__NetBSD__)
#define USE_CPU_EMUL_SERVICES
#endif
#endif
#ifdef USE_CPU_EMUL_SERVICES
#undef USE_PTHREADS_SERVICES
#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

#ifndef HAVE_LOFF_T
typedef off_t loff_t;
#endif
#ifndef HAVE_CADDR_T
typedef char * caddr_t;
#endif

/* Time data type for Time Manager emulation */
#ifdef HAVE_CLOCK_GETTIME
typedef struct timespec tm_time_t;
#elif defined(__MACH__)
typedef mach_timespec_t tm_time_t;
#else
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

/* UAE CPU data types */
#define uae_s8 int8
#define uae_u8 uint8
#define uae_s16 int16
#define uae_u16 uint16
#define uae_s32 int32
#define uae_u32 uint32
#define uae_s64 int64
#define uae_u64 uint64
typedef uae_u32 uaecptr;

/* Alignment restrictions */
#if defined(__i386__) || defined(__powerpc__) || defined(__m68k__) || defined(__x86_64__)
# define CPU_CAN_ACCESS_UNALIGNED
#endif

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

/* Spinlocks */
#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

/* FIXME: SheepShaver occasionnally hangs with those locks */
#if 0 && (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 __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__ */

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

/* 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

#ifdef HAVE_PTHREADS
/* Centralized pthread attribute setup */
void Set_pthread_attr(pthread_attr_t *attr, int priority);
#endif

/* UAE CPU defines */
#ifdef WORDS_BIGENDIAN

#ifdef CPU_CAN_ACCESS_UNALIGNED

/* Big-endian CPUs which can do unaligned accesses */
static inline uae_u32 do_get_mem_long(uae_u32 *a) {return *a;}
static inline uae_u32 do_get_mem_word(uae_u16 *a) {return *a;}
static inline void do_put_mem_long(uae_u32 *a, uae_u32 v) {*a = v;}
static inline void do_put_mem_word(uae_u16 *a, uae_u32 v) {*a = v;}

#else /* CPU_CAN_ACCESS_UNALIGNED */

#ifdef sgi
/* The SGI MIPSPro compilers can do unaligned accesses given enough hints.
 * They will automatically inline these routines. */
#ifdef __cplusplus
extern "C" { /* only the C compiler does unaligned accesses */
#endif
extern uae_u32 do_get_mem_long(uae_u32 *a);
extern uae_u32 do_get_mem_word(uae_u16 *a);
extern void do_put_mem_long(uae_u32 *a, uae_u32 v);
extern void do_put_mem_word(uae_u16 *a, uae_u32 v);
#ifdef __cplusplus
}
#endif

#else /* sgi */

/* Big-endian CPUs which can not do unaligned accesses (this is not the most efficient way to do this...) */
static inline uae_u32 do_get_mem_long(uae_u32 *a) {uint8 *b = (uint8 *)a; return (b[0] << 24) | (b[1] << 16) | (b[2] << 8) | b[3];}
static inline uae_u32 do_get_mem_word(uae_u16 *a) {uint8 *b = (uint8 *)a; return (b[0] << 8) | b[1];}
static inline void do_put_mem_long(uae_u32 *a, uae_u32 v) {uint8 *b = (uint8 *)a; b[0] = v >> 24; b[1] = v >> 16; b[2] = v >> 8; b[3] = v;}
static inline void do_put_mem_word(uae_u16 *a, uae_u32 v) {uint8 *b = (uint8 *)a; b[0] = v >> 8; b[1] = v;}
#endif /* sgi */

#endif /* CPU_CAN_ACCESS_UNALIGNED */

#else /* WORDS_BIGENDIAN */

#if defined(__i386__) || defined(__x86_64__)

/* Intel x86 */
#define X86_PPRO_OPT
static inline uae_u32 do_get_mem_long(uae_u32 *a) {uint32 retval; __asm__ ("bswap %0" : "=r" (retval) : "0" (*a) : "cc"); return retval;}
#ifdef X86_PPRO_OPT
static inline uae_u32 do_get_mem_word(uae_u16 *a) {uint32 retval; __asm__ ("movzwl %w1,%k0\n\tshll $16,%k0\n\tbswapl %k0\n" : "=&r" (retval) : "m" (*a) : "cc"); return retval;}
#else
static inline uae_u32 do_get_mem_word(uae_u16 *a) {uint32 retval; __asm__ ("xorl %k0,%k0\n\tmovw %w1,%w0\n\trolw $8,%w0" : "=&r" (retval) : "m" (*a) : "cc"); return retval;}
#endif
#define HAVE_GET_WORD_UNSWAPPED
#define do_get_mem_word_unswapped(a) ((uae_u32)*((uae_u16 *)(a)))
static inline void do_put_mem_long(uae_u32 *a, uae_u32 v) {__asm__ ("bswap %0" : "=r" (v) : "0" (v) : "cc"); *a = v;}
#ifdef X86_PPRO_OPT
static inline void do_put_mem_word(uae_u16 *a, uae_u32 v) {__asm__ ("bswapl %0" : "=&r" (v) : "0" (v << 16) : "cc"); *a = v;}
#else
static inline void do_put_mem_word(uae_u16 *a, uae_u32 v) {__asm__ ("rolw $8,%0" : "=r" (v) : "0" (v) : "cc"); *a = v;}
#endif
#define HAVE_OPTIMIZED_BYTESWAP_32
/* bswap doesn't affect condition codes */
static inline uae_u32 do_byteswap_32(uae_u32 v) {__asm__ ("bswap %0" : "=r" (v) : "0" (v)); return v;}
#define HAVE_OPTIMIZED_BYTESWAP_16
#ifdef X86_PPRO_OPT
static inline uae_u32 do_byteswap_16(uae_u32 v) {__asm__ ("bswapl %0" : "=&r" (v) : "0" (v << 16) : "cc"); return v;}
#else
static inline uae_u32 do_byteswap_16(uae_u32 v) {__asm__ ("rolw $8,%0" : "=r" (v) : "0" (v) : "cc"); return v;}
#endif

#elif defined(CPU_CAN_ACCESS_UNALIGNED)

/* Other little-endian CPUs which can do unaligned accesses */
static inline uae_u32 do_get_mem_long(uae_u32 *a) {uint32 x = *a; return (x >> 24) | (x >> 8) & 0xff00 | (x << 8) & 0xff0000 | (x << 24);}
static inline uae_u32 do_get_mem_word(uae_u16 *a) {uint16 x = *a; return (x >> 8) | (x << 8);}
static inline void do_put_mem_long(uae_u32 *a, uae_u32 v) {*a = (v >> 24) | (v >> 8) & 0xff00 | (v << 8) & 0xff0000 | (v << 24);}
static inline void do_put_mem_word(uae_u16 *a, uae_u32 v) {*a = (v >> 8) | (v << 8);}

#else /* CPU_CAN_ACCESS_UNALIGNED */

/* Other little-endian CPUs which can not do unaligned accesses (this needs optimization) */
static inline uae_u32 do_get_mem_long(uae_u32 *a) {uint8 *b = (uint8 *)a; return (b[0] << 24) | (b[1] << 16) | (b[2] << 8) | b[3];}
static inline uae_u32 do_get_mem_word(uae_u16 *a) {uint8 *b = (uint8 *)a; return (b[0] << 8) | b[1];}
static inline void do_put_mem_long(uae_u32 *a, uae_u32 v) {uint8 *b = (uint8 *)a; b[0] = v >> 24; b[1] = v >> 16; b[2] = v >> 8; b[3] = v;}
static inline void do_put_mem_word(uae_u16 *a, uae_u32 v) {uint8 *b = (uint8 *)a; b[0] = v >> 8; b[1] = v;}

#endif /* CPU_CAN_ACCESS_UNALIGNED */

#endif /* WORDS_BIGENDIAN */

#ifndef HAVE_OPTIMIZED_BYTESWAP_32
static inline uae_u32 do_byteswap_32(uae_u32 v)
        { return (((v >> 24) & 0xff) | ((v >> 8) & 0xff00) | ((v & 0xff) << 24) | ((v & 0xff00) << 8)); }
#endif

#ifndef HAVE_OPTIMIZED_BYTESWAP_16
static inline uae_u32 do_byteswap_16(uae_u32 v)
        { return (((v >> 8) & 0xff) | ((v & 0xff) << 8)); }
#endif

#define do_get_mem_byte(a) ((uae_u32)*((uae_u8 *)(a)))
#define do_put_mem_byte(a, v) (*(uae_u8 *)(a) = (v))

#define call_mem_get_func(func, addr) ((*func)(addr))
#define call_mem_put_func(func, addr, v) ((*func)(addr, v))
#define __inline__ inline
#define CPU_EMU_SIZE 0
#undef NO_INLINE_MEMORY_ACCESS
#undef MD_HAVE_MEM_1_FUNCS
#define ENUMDECL typedef enum
#define ENUMNAME(name) name
#define write_log printf

#if defined(X86_ASSEMBLY) || defined(X86_64_ASSEMBLY)
#define ASM_SYM_FOR_FUNC(a) __asm__(a)
#else
#define ASM_SYM_FOR_FUNC(a)
#endif

#ifndef REGPARAM
# define REGPARAM
#endif
#define REGPARAM2

#endif
Revision:	1.35
Committed:	2009-08-17T20:42:26Z (14 years, 9 months ago) by asvitkine
Content type:	text/plain
Branch:	MAIN
CVS Tags:	HEAD
Changes since 1.34:	+5 -0 lines
Log Message:	[Charles Srstka] Attached is a set of patches to port the precise timer that is currently used in the Linux and BeOS builds of SheepShaver to Mac OS X (and any other Mach-based operating systems). Currently, the Linux build uses the clock_gettime() function to get nanosecond-precision time, and falls back on gettimeofday() if it is not present. Unfortunately, Mac OS X does not currently support clock_gettime(), and gettimeofday() has only microsecond granularity. The Mach kernel, however, has a clock_get_time() function that does very nearly the same thing as clock_gettime(). The patches to BasiliskII cause the timing functions such as timer_current_time() to use clock_get_time() instead of gettimeofday() on Mach-based systems that do not support clock_gettime(). The changes to SheepShaver involve the precise timer. The existing code for Linux uses pthreads and real-time signals to handle the timing. Mac OS X unfortunately does not seem to support real-time signals, so Mach calls are again used to suspend and resume the timer thread in order to attempt to duplicate the Linux and BeOS versions of the timer. The code is somewhat ugly right now, as I decided to leave alone the pre-existing style of the source file, which unfortunately involves #ifdefs scattered throughout the file and some duplication of code. A future patch may want to clean this up to separate out the OS-specific code and put it all together at the top of the file. However, for the time being, this seems to work. This has not been extensively tested, because I have not been able to get my hands on a good test-case app for the classic Mac OS that would run inside the emulator and try out the timer. However, performance does seem to be better than with the pre-existing code, and nothing seems to have blown up as far as I can tell. I did find a game via a Google search - Cap'n Magneto - that is known to have problems with Basilisk/SheepShaver's legacy 60 Hz timer, and the opening fade-to-color for this game appears to run much more smoothly with the precise timer code in place.
#	Content
1	/*
2	* sysdeps.h - System dependent definitions for Unix
3	*
4	* Basilisk II (C) 1997-2008 Christian Bauer
5	*
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
46	#ifdef HAVE_PTHREADS
47	# include <pthread.h>
48	#endif
49
50	#ifdef HAVE_FCNTL_H
51	# include <fcntl.h>
52	#endif
53
54	#ifdef TIME_WITH_SYS_TIME
55	# include <sys/time.h>
56	# include <time.h>
57	#else
58	# ifdef HAVE_SYS_TIME_H
59	# include <sys/time.h>
60	# else
61	# include <time.h>
62	# endif
63	#endif
64
65	#if defined(__MACH__)
66	#include <mach/clock.h>
67	#endif
68
69	#ifdef ENABLE_NATIVE_M68K
70
71	/* Mac and host address space are the same */
72	#define REAL_ADDRESSING 1
73
74	/* Using 68k natively */
75	#define EMULATED_68K 0
76
77	/* Mac ROM is not write protected */
78	#define ROM_IS_WRITE_PROTECTED 0
79	#define USE_SCRATCHMEM_SUBTERFUGE 1
80
81	#else
82
83	/* Mac and host address space are distinct */
84	#ifndef REAL_ADDRESSING
85	#define REAL_ADDRESSING 0
86	#endif
87
88	/* Using 68k emulator */
89	#define EMULATED_68K 1
90
91	/* The m68k emulator uses a prefetch buffer ? */
92	#define USE_PREFETCH_BUFFER 0
93
94	/* Mac ROM is write protected when banked memory is used */
95	#if REAL_ADDRESSING \|\| DIRECT_ADDRESSING
96	# define ROM_IS_WRITE_PROTECTED 0
97	# define USE_SCRATCHMEM_SUBTERFUGE 1
98	#else
99	# define ROM_IS_WRITE_PROTECTED 1
100	#endif
101
102	#endif
103
104	/* Direct Addressing requires Video on SEGV signals in plain X11 mode */
105	#if DIRECT_ADDRESSING && (!ENABLE_VOSF && !USE_SDL_VIDEO)
106	# undef ENABLE_VOSF
107	# define ENABLE_VOSF 1
108	#endif
109
110	/* ExtFS is supported */
111	#define SUPPORTS_EXTFS 1
112
113	/* BSD socket API supported */
114	#define SUPPORTS_UDP_TUNNEL 1
115
116	/* Use the CPU emulator to check for periodic tasks? */
117	#ifdef HAVE_PTHREADS
118	#define USE_PTHREADS_SERVICES
119	#endif
120	#if EMULATED_68K
121	#if defined(__NetBSD__)
122	#define USE_CPU_EMUL_SERVICES
123	#endif
124	#endif
125	#ifdef USE_CPU_EMUL_SERVICES
126	#undef USE_PTHREADS_SERVICES
127	#endif
128
129
130	/* Data types */
131	typedef unsigned char uint8;
132	typedef signed char int8;
133	#if SIZEOF_SHORT == 2
134	typedef unsigned short uint16;
135	typedef short int16;
136	#elif SIZEOF_INT == 2
137	typedef unsigned int uint16;
138	typedef int int16;
139	#else
140	#error "No 2 byte type, you lose."
141	#endif
142	#if SIZEOF_INT == 4
143	typedef unsigned int uint32;
144	typedef int int32;
145	#elif SIZEOF_LONG == 4
146	typedef unsigned long uint32;
147	typedef long int32;
148	#else
149	#error "No 4 byte type, you lose."
150	#endif
151	#if SIZEOF_LONG == 8
152	typedef unsigned long uint64;
153	typedef long int64;
154	#define VAL64(a) (a ## l)
155	#define UVAL64(a) (a ## ul)
156	#elif SIZEOF_LONG_LONG == 8
157	typedef unsigned long long uint64;
158	typedef long long int64;
159	#define VAL64(a) (a ## LL)
160	#define UVAL64(a) (a ## uLL)
161	#else
162	#error "No 8 byte type, you lose."
163	#endif
164	#if SIZEOF_VOID_P == 4
165	typedef uint32 uintptr;
166	typedef int32 intptr;
167	#elif SIZEOF_VOID_P == 8
168	typedef uint64 uintptr;
169	typedef int64 intptr;
170	#else
171	#error "Unsupported size of pointer"
172	#endif
173
174	#ifndef HAVE_LOFF_T
175	typedef off_t loff_t;
176	#endif
177	#ifndef HAVE_CADDR_T
178	typedef char * caddr_t;
179	#endif
180
181	/* Time data type for Time Manager emulation */
182	#ifdef HAVE_CLOCK_GETTIME
183	typedef struct timespec tm_time_t;
184	#elif defined(__MACH__)
185	typedef mach_timespec_t tm_time_t;
186	#else
187	typedef struct timeval tm_time_t;
188	#endif
189
190	/* Define codes for all the float formats that we know of.
191	* Though we only handle IEEE format. */
192	#define UNKNOWN_FLOAT_FORMAT 0
193	#define IEEE_FLOAT_FORMAT 1
194	#define VAX_FLOAT_FORMAT 2
195	#define IBM_FLOAT_FORMAT 3
196	#define C4X_FLOAT_FORMAT 4
197
198	/* UAE CPU data types */
199	#define uae_s8 int8
200	#define uae_u8 uint8
201	#define uae_s16 int16
202	#define uae_u16 uint16
203	#define uae_s32 int32
204	#define uae_u32 uint32
205	#define uae_s64 int64
206	#define uae_u64 uint64
207	typedef uae_u32 uaecptr;
208
209	/* Alignment restrictions */
210	#if defined(__i386__) \|\| defined(__powerpc__) \|\| defined(__m68k__) \|\| defined(__x86_64__)
211	# define CPU_CAN_ACCESS_UNALIGNED
212	#endif
213
214	/* Timing functions */
215	extern uint64 GetTicks_usec(void);
216	extern void Delay_usec(uint32 usec);
217
218	/* Spinlocks */
219	#ifdef __GNUC__
220
221	#if defined(__powerpc__) \|\| defined(__ppc__)
222	#define HAVE_TEST_AND_SET 1
223	static inline int testandset(volatile int *p)
224	{
225	int ret;
226	__asm__ __volatile__("0: lwarx %0,0,%1\n"
227	" xor. %0,%3,%0\n"
228	" bne 1f\n"
229	" stwcx. %2,0,%1\n"
230	" bne- 0b\n"
231	"1: "
232	: "=&r" (ret)
233	: "r" (p), "r" (1), "r" (0)
234	: "cr0", "memory");
235	return ret;
236	}
237	#endif
238
239	/* FIXME: SheepShaver occasionnally hangs with those locks */
240	#if 0 && (defined(__i386__) \|\| defined(__x86_64__))
241	#define HAVE_TEST_AND_SET 1
242	static inline int testandset(volatile int *p)
243	{
244	long int ret;
245	/* Note: the "xchg" instruction does not need a "lock" prefix */
246	__asm__ __volatile__("xchgl %k0, %1"
247	: "=r" (ret), "=m" (*p)
248	: "0" (1), "m" (*p)
249	: "memory");
250	return ret;
251	}
252	#endif
253
254	#ifdef __s390__
255	#define HAVE_TEST_AND_SET 1
256	static inline int testandset(volatile int *p)
257	{
258	int ret;
259
260	__asm__ __volatile__("0: cs %0,%1,0(%2)\n"
261	" jl 0b"
262	: "=&d" (ret)
263	: "r" (1), "a" (p), "0" (*p)
264	: "cc", "memory" );
265	return ret;
266	}
267	#endif
268
269	#ifdef __alpha__
270	#define HAVE_TEST_AND_SET 1
271	static inline int testandset(volatile int *p)
272	{
273	int ret;
274	unsigned long one;
275
276	__asm__ __volatile__("0: mov 1,%2\n"
277	" ldl_l %0,%1\n"
278	" stl_c %2,%1\n"
279	" beq %2,1f\n"
280	".subsection 2\n"
281	"1: br 0b\n"
282	".previous"
283	: "=r" (ret), "=m" (*p), "=r" (one)
284	: "m" (*p));
285	return ret;
286	}
287	#endif
288
289	#ifdef __sparc__
290	#define HAVE_TEST_AND_SET 1
291	static inline int testandset(volatile int *p)
292	{
293	int ret;
294
295	__asm__ __volatile__("ldstub [%1], %0"
296	: "=r" (ret)
297	: "r" (p)
298	: "memory");
299
300	return (ret ? 1 : 0);
301	}
302	#endif
303
304	#ifdef __arm__
305	#define HAVE_TEST_AND_SET 1
306	static inline int testandset(volatile int *p)
307	{
308	register unsigned int ret;
309	__asm__ __volatile__("swp %0, %1, [%2]"
310	: "=r"(ret)
311	: "0"(1), "r"(p));
312
313	return ret;
314	}
315	#endif
316
317	#endif /* __GNUC__ */
318
319	typedef volatile int spinlock_t;
320
321	static const spinlock_t SPIN_LOCK_UNLOCKED = 0;
322
323	#if HAVE_TEST_AND_SET
324	#define HAVE_SPINLOCKS 1
325	static inline void spin_lock(spinlock_t *lock)
326	{
327	while (testandset(lock));
328	}
329
330	static inline void spin_unlock(spinlock_t *lock)
331	{
332	*lock = 0;
333	}
334
335	static inline int spin_trylock(spinlock_t *lock)
336	{
337	return !testandset(lock);
338	}
339	#else
340	static inline void spin_lock(spinlock_t *lock)
341	{
342	}
343
344	static inline void spin_unlock(spinlock_t *lock)
345	{
346	}
347
348	static inline int spin_trylock(spinlock_t *lock)
349	{
350	return 1;
351	}
352	#endif
353
354	/* X11 display fast locks */
355	#ifdef HAVE_SPINLOCKS
356	#define X11_LOCK_TYPE spinlock_t
357	#define X11_LOCK_INIT SPIN_LOCK_UNLOCKED
358	#define XDisplayLock() spin_lock(&x_display_lock)
359	#define XDisplayUnlock() spin_unlock(&x_display_lock)
360	#elif defined(HAVE_PTHREADS)
361	#define X11_LOCK_TYPE pthread_mutex_t
362	#define X11_LOCK_INIT PTHREAD_MUTEX_INITIALIZER
363	#define XDisplayLock() pthread_mutex_lock(&x_display_lock);
364	#define XDisplayUnlock() pthread_mutex_unlock(&x_display_lock);
365	#else
366	#define XDisplayLock()
367	#define XDisplayUnlock()
368	#endif
369	#ifdef X11_LOCK_TYPE
370	extern X11_LOCK_TYPE x_display_lock;
371	#endif
372
373	#ifdef HAVE_PTHREADS
374	/* Centralized pthread attribute setup */
375	void Set_pthread_attr(pthread_attr_t *attr, int priority);
376	#endif
377
378	/* UAE CPU defines */
379	#ifdef WORDS_BIGENDIAN
380
381	#ifdef CPU_CAN_ACCESS_UNALIGNED
382
383	/* Big-endian CPUs which can do unaligned accesses */
384	static inline uae_u32 do_get_mem_long(uae_u32 a) {return a;}
385	static inline uae_u32 do_get_mem_word(uae_u16 a) {return a;}
386	static inline void do_put_mem_long(uae_u32 a, uae_u32 v) {a = v;}
387	static inline void do_put_mem_word(uae_u16 a, uae_u32 v) {a = v;}
388
389	#else /* CPU_CAN_ACCESS_UNALIGNED */
390
391	#ifdef sgi
392	/* The SGI MIPSPro compilers can do unaligned accesses given enough hints.
393	* They will automatically inline these routines. */
394	#ifdef __cplusplus
395	extern "C" { /* only the C compiler does unaligned accesses */
396	#endif
397	extern uae_u32 do_get_mem_long(uae_u32 *a);
398	extern uae_u32 do_get_mem_word(uae_u16 *a);
399	extern void do_put_mem_long(uae_u32 *a, uae_u32 v);
400	extern void do_put_mem_word(uae_u16 *a, uae_u32 v);
401	#ifdef __cplusplus
402	}
403	#endif
404
405	#else /* sgi */
406
407	/* Big-endian CPUs which can not do unaligned accesses (this is not the most efficient way to do this...) */
408	static inline uae_u32 do_get_mem_long(uae_u32 a) {uint8 b = (uint8 *)a; return (b[0] << 24) \| (b[1] << 16) \| (b[2] << 8) \| b[3];}
409	static inline uae_u32 do_get_mem_word(uae_u16 a) {uint8 b = (uint8 *)a; return (b[0] << 8) \| b[1];}
410	static inline void do_put_mem_long(uae_u32 a, uae_u32 v) {uint8 b = (uint8 *)a; b[0] = v >> 24; b[1] = v >> 16; b[2] = v >> 8; b[3] = v;}
411	static inline void do_put_mem_word(uae_u16 a, uae_u32 v) {uint8 b = (uint8 *)a; b[0] = v >> 8; b[1] = v;}
412	#endif /* sgi */
413
414	#endif /* CPU_CAN_ACCESS_UNALIGNED */
415
416	#else /* WORDS_BIGENDIAN */
417
418	#if defined(__i386__) \|\| defined(__x86_64__)
419
420	/* Intel x86 */
421	#define X86_PPRO_OPT
422	static inline uae_u32 do_get_mem_long(uae_u32 a) {uint32 retval; __asm__ ("bswap %0" : "=r" (retval) : "0" (a) : "cc"); return retval;}
423	#ifdef X86_PPRO_OPT
424	static inline uae_u32 do_get_mem_word(uae_u16 a) {uint32 retval; __asm__ ("movzwl %w1,%k0\n\tshll $16,%k0\n\tbswapl %k0\n" : "=&r" (retval) : "m" (a) : "cc"); return retval;}
425	#else
426	static inline uae_u32 do_get_mem_word(uae_u16 a) {uint32 retval; __asm__ ("xorl %k0,%k0\n\tmovw %w1,%w0\n\trolw $8,%w0" : "=&r" (retval) : "m" (a) : "cc"); return retval;}
427	#endif
428	#define HAVE_GET_WORD_UNSWAPPED
429	#define do_get_mem_word_unswapped(a) ((uae_u32)((uae_u16 )(a)))
430	static inline void do_put_mem_long(uae_u32 a, uae_u32 v) {__asm__ ("bswap %0" : "=r" (v) : "0" (v) : "cc"); a = v;}
431	#ifdef X86_PPRO_OPT
432	static inline void do_put_mem_word(uae_u16 a, uae_u32 v) {__asm__ ("bswapl %0" : "=&r" (v) : "0" (v << 16) : "cc"); a = v;}
433	#else
434	static inline void do_put_mem_word(uae_u16 a, uae_u32 v) {__asm__ ("rolw $8,%0" : "=r" (v) : "0" (v) : "cc"); a = v;}
435	#endif
436	#define HAVE_OPTIMIZED_BYTESWAP_32
437	/* bswap doesn't affect condition codes */
438	static inline uae_u32 do_byteswap_32(uae_u32 v) {__asm__ ("bswap %0" : "=r" (v) : "0" (v)); return v;}
439	#define HAVE_OPTIMIZED_BYTESWAP_16
440	#ifdef X86_PPRO_OPT
441	static inline uae_u32 do_byteswap_16(uae_u32 v) {__asm__ ("bswapl %0" : "=&r" (v) : "0" (v << 16) : "cc"); return v;}
442	#else
443	static inline uae_u32 do_byteswap_16(uae_u32 v) {__asm__ ("rolw $8,%0" : "=r" (v) : "0" (v) : "cc"); return v;}
444	#endif
445
446	#elif defined(CPU_CAN_ACCESS_UNALIGNED)
447
448	/* Other little-endian CPUs which can do unaligned accesses */
449	static inline uae_u32 do_get_mem_long(uae_u32 a) {uint32 x = a; return (x >> 24) \| (x >> 8) & 0xff00 \| (x << 8) & 0xff0000 \| (x << 24);}
450	static inline uae_u32 do_get_mem_word(uae_u16 a) {uint16 x = a; return (x >> 8) \| (x << 8);}
451	static inline void do_put_mem_long(uae_u32 a, uae_u32 v) {a = (v >> 24) \| (v >> 8) & 0xff00 \| (v << 8) & 0xff0000 \| (v << 24);}
452	static inline void do_put_mem_word(uae_u16 a, uae_u32 v) {a = (v >> 8) \| (v << 8);}
453
454	#else /* CPU_CAN_ACCESS_UNALIGNED */
455
456	/* Other little-endian CPUs which can not do unaligned accesses (this needs optimization) */
457	static inline uae_u32 do_get_mem_long(uae_u32 a) {uint8 b = (uint8 *)a; return (b[0] << 24) \| (b[1] << 16) \| (b[2] << 8) \| b[3];}
458	static inline uae_u32 do_get_mem_word(uae_u16 a) {uint8 b = (uint8 *)a; return (b[0] << 8) \| b[1];}
459	static inline void do_put_mem_long(uae_u32 a, uae_u32 v) {uint8 b = (uint8 *)a; b[0] = v >> 24; b[1] = v >> 16; b[2] = v >> 8; b[3] = v;}
460	static inline void do_put_mem_word(uae_u16 a, uae_u32 v) {uint8 b = (uint8 *)a; b[0] = v >> 8; b[1] = v;}
461
462	#endif /* CPU_CAN_ACCESS_UNALIGNED */
463
464	#endif /* WORDS_BIGENDIAN */
465
466	#ifndef HAVE_OPTIMIZED_BYTESWAP_32
467	static inline uae_u32 do_byteswap_32(uae_u32 v)
468	{ return (((v >> 24) & 0xff) \| ((v >> 8) & 0xff00) \| ((v & 0xff) << 24) \| ((v & 0xff00) << 8)); }
469	#endif
470
471	#ifndef HAVE_OPTIMIZED_BYTESWAP_16
472	static inline uae_u32 do_byteswap_16(uae_u32 v)
473	{ return (((v >> 8) & 0xff) \| ((v & 0xff) << 8)); }
474	#endif
475
476	#define do_get_mem_byte(a) ((uae_u32)((uae_u8 )(a)))
477	#define do_put_mem_byte(a, v) ((uae_u8 )(a) = (v))
478
479	#define call_mem_get_func(func, addr) ((*func)(addr))
480	#define call_mem_put_func(func, addr, v) ((*func)(addr, v))
481	#define __inline__ inline
482	#define CPU_EMU_SIZE 0
483	#undef NO_INLINE_MEMORY_ACCESS
484	#undef MD_HAVE_MEM_1_FUNCS
485	#define ENUMDECL typedef enum
486	#define ENUMNAME(name) name
487	#define write_log printf
488
489	#if defined(X86_ASSEMBLY) \|\| defined(X86_64_ASSEMBLY)
490	#define ASM_SYM_FOR_FUNC(a) __asm__(a)
491	#else
492	#define ASM_SYM_FOR_FUNC(a)
493	#endif
494
495	#ifndef REGPARAM
496	# define REGPARAM
497	#endif
498	#define REGPARAM2
499
500	#endif