src/Unix/sysdeps.h

/*
 *  sysdeps.h - System dependent definitions for Unix
 *
 *  Basilisk II (C) 1997-1999 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>
#include <pthread.h>

#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


/* Are the Mac and the host address space the same? */
#define REAL_ADDRESSING 0

/* Are we using a 68k emulator or the real thing? */
#define EMULATED_68K 1

/* Is the Mac ROM write protected? */
#define ROM_IS_WRITE_PROTECTED 1

/* ExtFS is supported */
#define SUPPORTS_EXTFS 1

/* 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

/* 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

/* Offset Mac->Unix time in seconds */
#define TIME_OFFSET 0x7c25b080

/* 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__)
# define CPU_CAN_ACCESS_UNALIGNED
#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 */

#ifdef __i386__

/* 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

#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 */

#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

#ifdef USE_COMPILER
#define USE_MAPPED_MEMORY
#define CAN_MAP_MEMORY
#define NO_EXCEPTION_3
#define NO_PREFETCH_BUFFER
#else
#undef USE_MAPPED_MEMORY
#undef CAN_MAP_MEMORY
#endif

#ifdef X86_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:	1.9
Committed:	1999-11-03T10:56:29Z (25 years ago) by cebix
Content type:	text/plain
Branch:	MAIN
CVS Tags:	snapshot-22121999, release-0_8-1
Changes since 1.8:	+10 -3 lines
Log Message:	- imported UAE CPU 0.8.10 changes - new utility functions Mac_memset, Mac2Host_memcpy, Host2Mac_memcpu and Mac2Mac_memcpy - extfs.cpp: fixed bug in fs_rename() and fs_cat_move() (auxiliary IOParam block was not in Mac address space) - some provisions for using UAE CPU compiler (doesn't work yet)
#	User	Rev	Content
1	cebix	1.1	/*
2			* sysdeps.h - System dependent definitions for Unix
3			*
4			* Basilisk II (C) 1997-1999 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	cebix	1.3	#include "user_strings_unix.h"
30	cebix	1.1
31			#ifndef STDC_HEADERS
32			#error "You don't have ANSI C header files."
33			#endif
34
35	cebix	1.2	#ifdef HAVE_UNISTD_H
36			# include <sys/types.h>
37			# include <unistd.h>
38			#endif
39
40	cebix	1.1	#include <netinet/in.h>
41			#include <assert.h>
42			#include <stdio.h>
43			#include <stdlib.h>
44			#include <string.h>
45			#include <pthread.h>
46
47			#ifdef HAVE_FCNTL_H
48			# include <fcntl.h>
49			#endif
50
51			#ifdef TIME_WITH_SYS_TIME
52			# include <sys/time.h>
53			# include <time.h>
54			#else
55			# ifdef HAVE_SYS_TIME_H
56			# include <sys/time.h>
57			# else
58			# include <time.h>
59			# endif
60			#endif
61
62
63			/* Are the Mac and the host address space the same? */
64			#define REAL_ADDRESSING 0
65
66			/* Are we using a 68k emulator or the real thing? */
67			#define EMULATED_68K 1
68
69			/* Is the Mac ROM write protected? */
70			#define ROM_IS_WRITE_PROTECTED 1
71
72	cebix	1.6	/* ExtFS is supported */
73			#define SUPPORTS_EXTFS 1
74
75	cebix	1.1	/* Data types */
76			typedef unsigned char uint8;
77			typedef signed char int8;
78			#if SIZEOF_SHORT == 2
79			typedef unsigned short uint16;
80			typedef short int16;
81			#elif SIZEOF_INT == 2
82			typedef unsigned int uint16;
83			typedef int int16;
84			#else
85			#error "No 2 byte type, you lose."
86			#endif
87			#if SIZEOF_INT == 4
88			typedef unsigned int uint32;
89			typedef int int32;
90			#elif SIZEOF_LONG == 4
91			typedef unsigned long uint32;
92			typedef long int32;
93			#else
94			#error "No 4 byte type, you lose."
95			#endif
96			#if SIZEOF_LONG == 8
97			typedef unsigned long uint64;
98			typedef long int64;
99	cebix	1.8	#define VAL64(a) (a ## l)
100			#define UVAL64(a) (a ## ul)
101	cebix	1.1	#elif SIZEOF_LONG_LONG == 8
102			typedef unsigned long long uint64;
103			typedef long long int64;
104	cebix	1.8	#define VAL64(a) (a ## LL)
105			#define UVAL64(a) (a ## uLL)
106	cebix	1.1	#else
107			#error "No 8 byte type, you lose."
108			#endif
109
110			/* Time data type for Time Manager emulation */
111			#ifdef HAVE_CLOCK_GETTIME
112			typedef struct timespec tm_time_t;
113			#else
114			typedef struct timeval tm_time_t;
115			#endif
116
117	cebix	1.5	/* Offset Mac->Unix time in seconds */
118			#define TIME_OFFSET 0x7c25b080
119
120	cebix	1.1	/* UAE CPU data types */
121			#define uae_s8 int8
122			#define uae_u8 uint8
123			#define uae_s16 int16
124			#define uae_u16 uint16
125			#define uae_s32 int32
126			#define uae_u32 uint32
127	cebix	1.7	#define uae_s64 int64
128			#define uae_u64 uint64
129	cebix	1.1	typedef uae_u32 uaecptr;
130
131			/* Alignment restrictions */
132	cebix	1.4	#if defined(__i386__) \|\| defined(__powerpc__) \|\| defined(__m68k__)
133	cebix	1.1	# define CPU_CAN_ACCESS_UNALIGNED
134			#endif
135
136			/* UAE CPU defines */
137			#ifdef WORDS_BIGENDIAN
138
139			#ifdef CPU_CAN_ACCESS_UNALIGNED
140
141			/* Big-endian CPUs which can do unaligned accesses */
142			static inline uae_u32 do_get_mem_long(uae_u32 a) {return a;}
143			static inline uae_u32 do_get_mem_word(uae_u16 a) {return a;}
144			static inline void do_put_mem_long(uae_u32 a, uae_u32 v) {a = v;}
145			static inline void do_put_mem_word(uae_u16 a, uae_u32 v) {a = v;}
146
147			#else /* CPU_CAN_ACCESS_UNALIGNED */
148
149			#ifdef sgi
150			/* The SGI MIPSPro compilers can do unaligned accesses given enough hints.
151			* They will automatically inline these routines. */
152			#ifdef __cplusplus
153			extern "C" { /* only the C compiler does unaligned accesses */
154			#endif
155			extern uae_u32 do_get_mem_long(uae_u32 *a);
156			extern uae_u32 do_get_mem_word(uae_u16 *a);
157			extern void do_put_mem_long(uae_u32 *a, uae_u32 v);
158			extern void do_put_mem_word(uae_u16 *a, uae_u32 v);
159			#ifdef __cplusplus
160			}
161			#endif
162
163			#else /* sgi */
164
165			/* Big-endian CPUs which can not do unaligned accesses (this is not the most efficient way to do this...) */
166			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];}
167			static inline uae_u32 do_get_mem_word(uae_u16 a) {uint8 b = (uint8 *)a; return (b[0] << 8) \| b[1];}
168			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;}
169			static inline void do_put_mem_word(uae_u16 a, uae_u32 v) {uint8 b = (uint8 *)a; b[0] = v >> 8; b[1] = v;}
170			#endif /* sgi */
171
172			#endif /* CPU_CAN_ACCESS_UNALIGNED */
173
174			#else /* WORDS_BIGENDIAN */
175
176			#ifdef __i386__
177
178			/* Intel x86 */
179			#define X86_PPRO_OPT
180			static inline uae_u32 do_get_mem_long(uae_u32 a) {uint32 retval; __asm__ ("bswap %0" : "=r" (retval) : "0" (a) : "cc"); return retval;}
181			#ifdef X86_PPRO_OPT
182			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;}
183			#else
184			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;}
185			#endif
186			#define HAVE_GET_WORD_UNSWAPPED
187			#define do_get_mem_word_unswapped(a) ((uae_u32)((uae_u16 )(a)))
188			static inline void do_put_mem_long(uae_u32 a, uae_u32 v) {__asm__ ("bswap %0" : "=r" (v) : "0" (v) : "cc"); a = v;}
189			#ifdef X86_PPRO_OPT
190			static inline void do_put_mem_word(uae_u16 a, uae_u32 v) {__asm__ ("bswapl %0" : "=&r" (v) : "0" (v << 16) : "cc"); a = v;}
191			#else
192			static inline void do_put_mem_word(uae_u16 a, uae_u32 v) {__asm__ ("rolw $8,%0" : "=r" (v) : "0" (v) : "cc"); a = v;}
193			#endif
194
195			#elif defined(CPU_CAN_ACCESS_UNALIGNED)
196
197			/* Other little-endian CPUs which can do unaligned accesses */
198			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);}
199			static inline uae_u32 do_get_mem_word(uae_u16 a) {uint16 x = a; return (x >> 8) \| (x << 8);}
200			static inline void do_put_mem_long(uae_u32 a, uae_u32 v) {a = (v >> 24) \| (v >> 8) & 0xff00 \| (v << 8) & 0xff0000 \| (v << 24);}
201			static inline void do_put_mem_word(uae_u16 a, uae_u32 v) {a = (v >> 8) \| (v << 8);}
202
203			#else /* CPU_CAN_ACCESS_UNALIGNED */
204
205			/* Other little-endian CPUs which can not do unaligned accesses (this needs optimization) */
206			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];}
207			static inline uae_u32 do_get_mem_word(uae_u16 a) {uint8 b = (uint8 *)a; return (b[0] << 8) \| b[1];}
208			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;}
209			static inline void do_put_mem_word(uae_u16 a, uae_u32 v) {uint8 b = (uint8 *)a; b[0] = v >> 8; b[1] = v;}
210
211			#endif /* CPU_CAN_ACCESS_UNALIGNED */
212
213			#endif /* WORDS_BIGENDIAN */
214
215			#define do_get_mem_byte(a) ((uae_u32)((uae_u8 )(a)))
216			#define do_put_mem_byte(a, v) ((uae_u8 )(a) = (v))
217
218			#define call_mem_get_func(func, addr) ((*func)(addr))
219			#define call_mem_put_func(func, addr, v) ((*func)(addr, v))
220			#define __inline__ inline
221			#define CPU_EMU_SIZE 0
222			#undef NO_INLINE_MEMORY_ACCESS
223			#undef MD_HAVE_MEM_1_FUNCS
224			#define ENUMDECL typedef enum
225			#define ENUMNAME(name) name
226			#define write_log printf
227	cebix	1.9
228			#ifdef USE_COMPILER
229			#define USE_MAPPED_MEMORY
230			#define CAN_MAP_MEMORY
231			#define NO_EXCEPTION_3
232			#define NO_PREFETCH_BUFFER
233			#else
234			#undef USE_MAPPED_MEMORY
235			#undef CAN_MAP_MEMORY
236			#endif
237	cebix	1.1
238			#ifdef X86_ASSEMBLY
239			#define ASM_SYM_FOR_FUNC(a) __asm__(a)
240			#else
241			#define ASM_SYM_FOR_FUNC(a)
242			#endif
243
244			#ifndef REGPARAM
245			# define REGPARAM
246			#endif
247			#define REGPARAM2
248
249			#endif