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root/cebix/BasiliskII/src/Unix/sysdeps.h
Revision: 1.29
Committed: 2004-01-12T15:29:25Z (20 years, 9 months ago) by cebix
Content type: text/plain
Branch: MAIN
CVS Tags: nigel-build-16, nigel-build-15
Changes since 1.28: +1 -1 lines
Log Message:
Happy New Year! :)

File Contents

# User Rev Content
1 cebix 1.1 /*
2     * sysdeps.h - System dependent definitions for Unix
3     *
4 cebix 1.29 * Basilisk II (C) 1997-2004 Christian Bauer
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 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    
46 gbeauche 1.24 #ifdef HAVE_PTHREADS
47     # include <pthread.h>
48     #endif
49    
50 cebix 1.1 #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    
66 cebix 1.11 #ifdef ENABLE_NATIVE_M68K
67    
68     /* Mac and host address space are the same */
69     #define REAL_ADDRESSING 1
70    
71     /* Using 68k natively */
72     #define EMULATED_68K 0
73    
74     /* Mac ROM is not write protected */
75     #define ROM_IS_WRITE_PROTECTED 0
76 cebix 1.14 #define USE_SCRATCHMEM_SUBTERFUGE 1
77 cebix 1.11
78     #else
79    
80     /* Mac and host address space are distinct */
81 gbeauche 1.13 #ifndef REAL_ADDRESSING
82 cebix 1.1 #define REAL_ADDRESSING 0
83 gbeauche 1.13 #endif
84 cebix 1.1
85 cebix 1.11 /* Using 68k emulator */
86 cebix 1.1 #define EMULATED_68K 1
87    
88 gbeauche 1.13 /* The m68k emulator uses a prefetch buffer ? */
89     #define USE_PREFETCH_BUFFER 0
90    
91 cebix 1.14 /* Mac ROM is write protected when banked memory is used */
92 gbeauche 1.13 #if REAL_ADDRESSING || DIRECT_ADDRESSING
93     # define ROM_IS_WRITE_PROTECTED 0
94     # define USE_SCRATCHMEM_SUBTERFUGE 1
95     #else
96     # define ROM_IS_WRITE_PROTECTED 1
97     #endif
98 cebix 1.1
99 cebix 1.11 #endif
100    
101 gbeauche 1.13 /* Direct Addressing requires Video on SEGV signals */
102     #if DIRECT_ADDRESSING && !ENABLE_VOSF
103     # undef ENABLE_VOSF
104     # define ENABLE_VOSF 1
105     #endif
106    
107 cebix 1.6 /* ExtFS is supported */
108     #define SUPPORTS_EXTFS 1
109 cebix 1.11
110 cebix 1.20 /* BSD socket API supported */
111     #define SUPPORTS_UDP_TUNNEL 1
112    
113 cebix 1.6
114 cebix 1.1 /* Data types */
115     typedef unsigned char uint8;
116     typedef signed char int8;
117     #if SIZEOF_SHORT == 2
118     typedef unsigned short uint16;
119     typedef short int16;
120     #elif SIZEOF_INT == 2
121     typedef unsigned int uint16;
122     typedef int int16;
123     #else
124     #error "No 2 byte type, you lose."
125     #endif
126     #if SIZEOF_INT == 4
127     typedef unsigned int uint32;
128     typedef int int32;
129     #elif SIZEOF_LONG == 4
130     typedef unsigned long uint32;
131     typedef long int32;
132     #else
133     #error "No 4 byte type, you lose."
134     #endif
135     #if SIZEOF_LONG == 8
136     typedef unsigned long uint64;
137     typedef long int64;
138 cebix 1.8 #define VAL64(a) (a ## l)
139     #define UVAL64(a) (a ## ul)
140 cebix 1.1 #elif SIZEOF_LONG_LONG == 8
141     typedef unsigned long long uint64;
142     typedef long long int64;
143 cebix 1.8 #define VAL64(a) (a ## LL)
144     #define UVAL64(a) (a ## uLL)
145 cebix 1.1 #else
146     #error "No 8 byte type, you lose."
147 gbeauche 1.13 #endif
148     #if SIZEOF_VOID_P == 4
149     typedef uint32 uintptr;
150     typedef int32 intptr;
151     #elif SIZEOF_VOID_P == 8
152     typedef uint64 uintptr;
153     typedef int64 intptr;
154     #else
155     #error "Unsupported size of pointer"
156 cebix 1.1 #endif
157    
158 nigel 1.27 #ifndef HAVE_LOFF_T
159 gbeauche 1.28 typedef off_t loff_t;
160     #endif
161     #ifndef HAVE_CADDR_T
162     typedef char * caddr_t;
163 nigel 1.27 #endif
164    
165 cebix 1.1 /* Time data type for Time Manager emulation */
166     #ifdef HAVE_CLOCK_GETTIME
167     typedef struct timespec tm_time_t;
168     #else
169     typedef struct timeval tm_time_t;
170     #endif
171    
172 gbeauche 1.23 /* Define codes for all the float formats that we know of.
173     * Though we only handle IEEE format. */
174     #define UNKNOWN_FLOAT_FORMAT 0
175     #define IEEE_FLOAT_FORMAT 1
176     #define VAX_FLOAT_FORMAT 2
177     #define IBM_FLOAT_FORMAT 3
178     #define C4X_FLOAT_FORMAT 4
179    
180 cebix 1.1 /* UAE CPU data types */
181     #define uae_s8 int8
182     #define uae_u8 uint8
183     #define uae_s16 int16
184     #define uae_u16 uint16
185     #define uae_s32 int32
186     #define uae_u32 uint32
187 cebix 1.7 #define uae_s64 int64
188     #define uae_u64 uint64
189 cebix 1.1 typedef uae_u32 uaecptr;
190    
191     /* Alignment restrictions */
192 gbeauche 1.25 #if defined(__i386__) || defined(__powerpc__) || defined(__m68k__) || defined(__x86_64__)
193 cebix 1.1 # define CPU_CAN_ACCESS_UNALIGNED
194     #endif
195    
196 cebix 1.12 /* Timing functions */
197     extern uint64 GetTicks_usec(void);
198     extern void Delay_usec(uint32 usec);
199    
200 cebix 1.22 #ifdef HAVE_PTHREADS
201     /* Centralized pthread attribute setup */
202     void Set_pthread_attr(pthread_attr_t *attr, int priority);
203     #endif
204    
205 cebix 1.1 /* UAE CPU defines */
206     #ifdef WORDS_BIGENDIAN
207    
208     #ifdef CPU_CAN_ACCESS_UNALIGNED
209    
210     /* Big-endian CPUs which can do unaligned accesses */
211     static inline uae_u32 do_get_mem_long(uae_u32 *a) {return *a;}
212     static inline uae_u32 do_get_mem_word(uae_u16 *a) {return *a;}
213     static inline void do_put_mem_long(uae_u32 *a, uae_u32 v) {*a = v;}
214     static inline void do_put_mem_word(uae_u16 *a, uae_u32 v) {*a = v;}
215    
216     #else /* CPU_CAN_ACCESS_UNALIGNED */
217    
218     #ifdef sgi
219     /* The SGI MIPSPro compilers can do unaligned accesses given enough hints.
220     * They will automatically inline these routines. */
221     #ifdef __cplusplus
222     extern "C" { /* only the C compiler does unaligned accesses */
223     #endif
224     extern uae_u32 do_get_mem_long(uae_u32 *a);
225     extern uae_u32 do_get_mem_word(uae_u16 *a);
226     extern void do_put_mem_long(uae_u32 *a, uae_u32 v);
227     extern void do_put_mem_word(uae_u16 *a, uae_u32 v);
228     #ifdef __cplusplus
229     }
230     #endif
231    
232     #else /* sgi */
233    
234     /* Big-endian CPUs which can not do unaligned accesses (this is not the most efficient way to do this...) */
235     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];}
236     static inline uae_u32 do_get_mem_word(uae_u16 *a) {uint8 *b = (uint8 *)a; return (b[0] << 8) | b[1];}
237     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;}
238     static inline void do_put_mem_word(uae_u16 *a, uae_u32 v) {uint8 *b = (uint8 *)a; b[0] = v >> 8; b[1] = v;}
239     #endif /* sgi */
240    
241     #endif /* CPU_CAN_ACCESS_UNALIGNED */
242    
243     #else /* WORDS_BIGENDIAN */
244    
245 gbeauche 1.25 #if defined(__i386__) || defined(__x86_64__)
246 cebix 1.1
247     /* Intel x86 */
248     #define X86_PPRO_OPT
249     static inline uae_u32 do_get_mem_long(uae_u32 *a) {uint32 retval; __asm__ ("bswap %0" : "=r" (retval) : "0" (*a) : "cc"); return retval;}
250     #ifdef X86_PPRO_OPT
251     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;}
252     #else
253     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;}
254     #endif
255     #define HAVE_GET_WORD_UNSWAPPED
256     #define do_get_mem_word_unswapped(a) ((uae_u32)*((uae_u16 *)(a)))
257     static inline void do_put_mem_long(uae_u32 *a, uae_u32 v) {__asm__ ("bswap %0" : "=r" (v) : "0" (v) : "cc"); *a = v;}
258     #ifdef X86_PPRO_OPT
259     static inline void do_put_mem_word(uae_u16 *a, uae_u32 v) {__asm__ ("bswapl %0" : "=&r" (v) : "0" (v << 16) : "cc"); *a = v;}
260     #else
261     static inline void do_put_mem_word(uae_u16 *a, uae_u32 v) {__asm__ ("rolw $8,%0" : "=r" (v) : "0" (v) : "cc"); *a = v;}
262     #endif
263 gbeauche 1.16 #define HAVE_OPTIMIZED_BYTESWAP_32
264     /* bswap doesn't affect condition codes */
265     static inline uae_u32 do_byteswap_32(uae_u32 v) {__asm__ ("bswap %0" : "=r" (v) : "0" (v)); return v;}
266     #define HAVE_OPTIMIZED_BYTESWAP_16
267     #ifdef X86_PPRO_OPT
268     static inline uae_u32 do_byteswap_16(uae_u32 v) {__asm__ ("bswapl %0" : "=&r" (v) : "0" (v << 16) : "cc"); return v;}
269     #else
270     static inline uae_u32 do_byteswap_16(uae_u32 v) {__asm__ ("rolw $8,%0" : "=r" (v) : "0" (v) : "cc"); return v;}
271     #endif
272 cebix 1.1
273     #elif defined(CPU_CAN_ACCESS_UNALIGNED)
274    
275     /* Other little-endian CPUs which can do unaligned accesses */
276     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);}
277     static inline uae_u32 do_get_mem_word(uae_u16 *a) {uint16 x = *a; return (x >> 8) | (x << 8);}
278     static inline void do_put_mem_long(uae_u32 *a, uae_u32 v) {*a = (v >> 24) | (v >> 8) & 0xff00 | (v << 8) & 0xff0000 | (v << 24);}
279     static inline void do_put_mem_word(uae_u16 *a, uae_u32 v) {*a = (v >> 8) | (v << 8);}
280    
281     #else /* CPU_CAN_ACCESS_UNALIGNED */
282    
283     /* Other little-endian CPUs which can not do unaligned accesses (this needs optimization) */
284     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];}
285     static inline uae_u32 do_get_mem_word(uae_u16 *a) {uint8 *b = (uint8 *)a; return (b[0] << 8) | b[1];}
286     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;}
287     static inline void do_put_mem_word(uae_u16 *a, uae_u32 v) {uint8 *b = (uint8 *)a; b[0] = v >> 8; b[1] = v;}
288    
289     #endif /* CPU_CAN_ACCESS_UNALIGNED */
290    
291     #endif /* WORDS_BIGENDIAN */
292 gbeauche 1.16
293     #ifndef HAVE_OPTIMIZED_BYTESWAP_32
294     static inline uae_u32 do_byteswap_32(uae_u32 v)
295     { return (((v >> 24) & 0xff) | ((v >> 8) & 0xff00) | ((v & 0xff) << 24) | ((v & 0xff00) << 8)); }
296     #endif
297    
298     #ifndef HAVE_OPTIMIZED_BYTESWAP_16
299     static inline uae_u32 do_byteswap_16(uae_u32 v)
300     { return (((v >> 8) & 0xff) | ((v & 0xff) << 8)); }
301     #endif
302 cebix 1.1
303     #define do_get_mem_byte(a) ((uae_u32)*((uae_u8 *)(a)))
304     #define do_put_mem_byte(a, v) (*(uae_u8 *)(a) = (v))
305    
306     #define call_mem_get_func(func, addr) ((*func)(addr))
307     #define call_mem_put_func(func, addr, v) ((*func)(addr, v))
308     #define __inline__ inline
309     #define CPU_EMU_SIZE 0
310     #undef NO_INLINE_MEMORY_ACCESS
311     #undef MD_HAVE_MEM_1_FUNCS
312     #define ENUMDECL typedef enum
313     #define ENUMNAME(name) name
314     #define write_log printf
315    
316 gbeauche 1.26 #if defined(X86_ASSEMBLY) || defined(X86_64_ASSEMBLY)
317 cebix 1.1 #define ASM_SYM_FOR_FUNC(a) __asm__(a)
318     #else
319     #define ASM_SYM_FOR_FUNC(a)
320     #endif
321    
322     #ifndef REGPARAM
323     # define REGPARAM
324     #endif
325     #define REGPARAM2
326    
327     #endif