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root/cebix/BasiliskII/src/Unix/sysdeps.h
Revision: 1.18
Committed: 2001-07-03T15:59:47Z (23 years, 4 months ago) by cebix
Content type: text/plain
Branch: MAIN
Changes since 1.17: +0 -2 lines
Log Message:
- added support for platform-independant mutexes, currently only properly
  implemented under Unix
- adb.cpp uses mutexes for thread-safe mouse handling
- video_x.cpp: pressing Ctrl-F5 in windowed mode switches to a "grabbed"
  relative mouse mode, useful for some games
- video_x.cpp: fixed some bugs relating to the hotkeys (key releases are no
  longer treated as hotkeys)

File Contents

# User Rev Content
1 cebix 1.1 /*
2     * sysdeps.h - System dependent definitions for Unix
3     *
4 cebix 1.17 * Basilisk II (C) 1997-2001 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     #ifdef HAVE_FCNTL_H
47     # include <fcntl.h>
48     #endif
49    
50     #ifdef TIME_WITH_SYS_TIME
51     # include <sys/time.h>
52     # include <time.h>
53     #else
54     # ifdef HAVE_SYS_TIME_H
55     # include <sys/time.h>
56     # else
57     # include <time.h>
58     # endif
59     #endif
60    
61    
62 cebix 1.11 #ifdef ENABLE_NATIVE_M68K
63    
64     /* Mac and host address space are the same */
65     #define REAL_ADDRESSING 1
66    
67     /* Using 68k natively */
68     #define EMULATED_68K 0
69    
70     /* Mac ROM is not write protected */
71     #define ROM_IS_WRITE_PROTECTED 0
72 cebix 1.14 #define USE_SCRATCHMEM_SUBTERFUGE 1
73 cebix 1.11
74     #else
75    
76     /* Mac and host address space are distinct */
77 gbeauche 1.13 #ifndef REAL_ADDRESSING
78 cebix 1.1 #define REAL_ADDRESSING 0
79 gbeauche 1.13 #endif
80 cebix 1.1
81 cebix 1.11 /* Using 68k emulator */
82 cebix 1.1 #define EMULATED_68K 1
83    
84 gbeauche 1.13 /* The m68k emulator uses a prefetch buffer ? */
85     #define USE_PREFETCH_BUFFER 0
86    
87 cebix 1.14 /* Mac ROM is write protected when banked memory is used */
88 gbeauche 1.13 #if REAL_ADDRESSING || DIRECT_ADDRESSING
89     # define ROM_IS_WRITE_PROTECTED 0
90     # define USE_SCRATCHMEM_SUBTERFUGE 1
91     #else
92     # define ROM_IS_WRITE_PROTECTED 1
93     #endif
94 cebix 1.1
95 cebix 1.11 #endif
96    
97 gbeauche 1.13 /* Direct Addressing requires Video on SEGV signals */
98     #if DIRECT_ADDRESSING && !ENABLE_VOSF
99     # undef ENABLE_VOSF
100     # define ENABLE_VOSF 1
101     #endif
102    
103 cebix 1.6 /* ExtFS is supported */
104     #define SUPPORTS_EXTFS 1
105 cebix 1.11
106 cebix 1.6
107 cebix 1.1 /* Data types */
108     typedef unsigned char uint8;
109     typedef signed char int8;
110     #if SIZEOF_SHORT == 2
111     typedef unsigned short uint16;
112     typedef short int16;
113     #elif SIZEOF_INT == 2
114     typedef unsigned int uint16;
115     typedef int int16;
116     #else
117     #error "No 2 byte type, you lose."
118     #endif
119     #if SIZEOF_INT == 4
120     typedef unsigned int uint32;
121     typedef int int32;
122     #elif SIZEOF_LONG == 4
123     typedef unsigned long uint32;
124     typedef long int32;
125     #else
126     #error "No 4 byte type, you lose."
127     #endif
128     #if SIZEOF_LONG == 8
129     typedef unsigned long uint64;
130     typedef long int64;
131 cebix 1.8 #define VAL64(a) (a ## l)
132     #define UVAL64(a) (a ## ul)
133 cebix 1.1 #elif SIZEOF_LONG_LONG == 8
134     typedef unsigned long long uint64;
135     typedef long long int64;
136 cebix 1.8 #define VAL64(a) (a ## LL)
137     #define UVAL64(a) (a ## uLL)
138 cebix 1.1 #else
139     #error "No 8 byte type, you lose."
140 gbeauche 1.13 #endif
141     #if SIZEOF_VOID_P == 4
142     typedef uint32 uintptr;
143     typedef int32 intptr;
144     #elif SIZEOF_VOID_P == 8
145     typedef uint64 uintptr;
146     typedef int64 intptr;
147     #else
148     #error "Unsupported size of pointer"
149 cebix 1.1 #endif
150    
151     /* Time data type for Time Manager emulation */
152     #ifdef HAVE_CLOCK_GETTIME
153     typedef struct timespec tm_time_t;
154     #else
155     typedef struct timeval tm_time_t;
156     #endif
157    
158 cebix 1.5 /* Offset Mac->Unix time in seconds */
159     #define TIME_OFFSET 0x7c25b080
160    
161 cebix 1.1 /* UAE CPU data types */
162     #define uae_s8 int8
163     #define uae_u8 uint8
164     #define uae_s16 int16
165     #define uae_u16 uint16
166     #define uae_s32 int32
167     #define uae_u32 uint32
168 cebix 1.7 #define uae_s64 int64
169     #define uae_u64 uint64
170 cebix 1.1 typedef uae_u32 uaecptr;
171    
172     /* Alignment restrictions */
173 cebix 1.4 #if defined(__i386__) || defined(__powerpc__) || defined(__m68k__)
174 cebix 1.1 # define CPU_CAN_ACCESS_UNALIGNED
175     #endif
176    
177 cebix 1.12 /* Timing functions */
178     extern uint64 GetTicks_usec(void);
179     extern void Delay_usec(uint32 usec);
180    
181 cebix 1.1 /* UAE CPU defines */
182     #ifdef WORDS_BIGENDIAN
183    
184     #ifdef CPU_CAN_ACCESS_UNALIGNED
185    
186     /* Big-endian CPUs which can do unaligned accesses */
187     static inline uae_u32 do_get_mem_long(uae_u32 *a) {return *a;}
188     static inline uae_u32 do_get_mem_word(uae_u16 *a) {return *a;}
189     static inline void do_put_mem_long(uae_u32 *a, uae_u32 v) {*a = v;}
190     static inline void do_put_mem_word(uae_u16 *a, uae_u32 v) {*a = v;}
191    
192     #else /* CPU_CAN_ACCESS_UNALIGNED */
193    
194     #ifdef sgi
195     /* The SGI MIPSPro compilers can do unaligned accesses given enough hints.
196     * They will automatically inline these routines. */
197     #ifdef __cplusplus
198     extern "C" { /* only the C compiler does unaligned accesses */
199     #endif
200     extern uae_u32 do_get_mem_long(uae_u32 *a);
201     extern uae_u32 do_get_mem_word(uae_u16 *a);
202     extern void do_put_mem_long(uae_u32 *a, uae_u32 v);
203     extern void do_put_mem_word(uae_u16 *a, uae_u32 v);
204     #ifdef __cplusplus
205     }
206     #endif
207    
208     #else /* sgi */
209    
210     /* Big-endian CPUs which can not do unaligned accesses (this is not the most efficient way to do this...) */
211     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];}
212     static inline uae_u32 do_get_mem_word(uae_u16 *a) {uint8 *b = (uint8 *)a; return (b[0] << 8) | b[1];}
213     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;}
214     static inline void do_put_mem_word(uae_u16 *a, uae_u32 v) {uint8 *b = (uint8 *)a; b[0] = v >> 8; b[1] = v;}
215     #endif /* sgi */
216    
217     #endif /* CPU_CAN_ACCESS_UNALIGNED */
218    
219     #else /* WORDS_BIGENDIAN */
220    
221     #ifdef __i386__
222    
223     /* Intel x86 */
224     #define X86_PPRO_OPT
225     static inline uae_u32 do_get_mem_long(uae_u32 *a) {uint32 retval; __asm__ ("bswap %0" : "=r" (retval) : "0" (*a) : "cc"); return retval;}
226     #ifdef X86_PPRO_OPT
227     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;}
228     #else
229     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;}
230     #endif
231     #define HAVE_GET_WORD_UNSWAPPED
232     #define do_get_mem_word_unswapped(a) ((uae_u32)*((uae_u16 *)(a)))
233     static inline void do_put_mem_long(uae_u32 *a, uae_u32 v) {__asm__ ("bswap %0" : "=r" (v) : "0" (v) : "cc"); *a = v;}
234     #ifdef X86_PPRO_OPT
235     static inline void do_put_mem_word(uae_u16 *a, uae_u32 v) {__asm__ ("bswapl %0" : "=&r" (v) : "0" (v << 16) : "cc"); *a = v;}
236     #else
237     static inline void do_put_mem_word(uae_u16 *a, uae_u32 v) {__asm__ ("rolw $8,%0" : "=r" (v) : "0" (v) : "cc"); *a = v;}
238     #endif
239 gbeauche 1.16 #define HAVE_OPTIMIZED_BYTESWAP_32
240     /* bswap doesn't affect condition codes */
241     static inline uae_u32 do_byteswap_32(uae_u32 v) {__asm__ ("bswap %0" : "=r" (v) : "0" (v)); return v;}
242     #define HAVE_OPTIMIZED_BYTESWAP_16
243     #ifdef X86_PPRO_OPT
244     static inline uae_u32 do_byteswap_16(uae_u32 v) {__asm__ ("bswapl %0" : "=&r" (v) : "0" (v << 16) : "cc"); return v;}
245     #else
246     static inline uae_u32 do_byteswap_16(uae_u32 v) {__asm__ ("rolw $8,%0" : "=r" (v) : "0" (v) : "cc"); return v;}
247     #endif
248 cebix 1.1
249     #elif defined(CPU_CAN_ACCESS_UNALIGNED)
250    
251     /* Other little-endian CPUs which can do unaligned accesses */
252     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);}
253     static inline uae_u32 do_get_mem_word(uae_u16 *a) {uint16 x = *a; return (x >> 8) | (x << 8);}
254     static inline void do_put_mem_long(uae_u32 *a, uae_u32 v) {*a = (v >> 24) | (v >> 8) & 0xff00 | (v << 8) & 0xff0000 | (v << 24);}
255     static inline void do_put_mem_word(uae_u16 *a, uae_u32 v) {*a = (v >> 8) | (v << 8);}
256    
257     #else /* CPU_CAN_ACCESS_UNALIGNED */
258    
259     /* Other little-endian CPUs which can not do unaligned accesses (this needs optimization) */
260     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];}
261     static inline uae_u32 do_get_mem_word(uae_u16 *a) {uint8 *b = (uint8 *)a; return (b[0] << 8) | b[1];}
262     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;}
263     static inline void do_put_mem_word(uae_u16 *a, uae_u32 v) {uint8 *b = (uint8 *)a; b[0] = v >> 8; b[1] = v;}
264    
265     #endif /* CPU_CAN_ACCESS_UNALIGNED */
266    
267     #endif /* WORDS_BIGENDIAN */
268 gbeauche 1.16
269     #ifndef HAVE_OPTIMIZED_BYTESWAP_32
270     static inline uae_u32 do_byteswap_32(uae_u32 v)
271     { return (((v >> 24) & 0xff) | ((v >> 8) & 0xff00) | ((v & 0xff) << 24) | ((v & 0xff00) << 8)); }
272     #endif
273    
274     #ifndef HAVE_OPTIMIZED_BYTESWAP_16
275     static inline uae_u32 do_byteswap_16(uae_u32 v)
276     { return (((v >> 8) & 0xff) | ((v & 0xff) << 8)); }
277     #endif
278 cebix 1.1
279     #define do_get_mem_byte(a) ((uae_u32)*((uae_u8 *)(a)))
280     #define do_put_mem_byte(a, v) (*(uae_u8 *)(a) = (v))
281    
282     #define call_mem_get_func(func, addr) ((*func)(addr))
283     #define call_mem_put_func(func, addr, v) ((*func)(addr, v))
284     #define __inline__ inline
285     #define CPU_EMU_SIZE 0
286     #undef NO_INLINE_MEMORY_ACCESS
287     #undef MD_HAVE_MEM_1_FUNCS
288     #define ENUMDECL typedef enum
289     #define ENUMNAME(name) name
290     #define write_log printf
291    
292     #ifdef X86_ASSEMBLY
293     #define ASM_SYM_FOR_FUNC(a) __asm__(a)
294     #else
295     #define ASM_SYM_FOR_FUNC(a)
296     #endif
297    
298     #ifndef REGPARAM
299     # define REGPARAM
300     #endif
301     #define REGPARAM2
302    
303     #endif