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Comparing SheepShaver/src/Unix/sysdeps.h (file contents):
Revision 1.1 by cebix, 2002-02-04T16:58:13Z vs.
Revision 1.22 by gbeauche, 2004-01-18T22:05:28Z

# Line 1 | Line 1
1   /*
2   *  sysdeps.h - System dependent definitions for Linux
3   *
4 < *  SheepShaver (C) 1997-2002 Christian Bauer and Marc Hellwig
4 > *  SheepShaver (C) 1997-2004 Christian Bauer and Marc Hellwig
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
# Line 59 | Line 59
59   # endif
60   #endif
61  
62 < // Are we using a PPC emulator or the real thing?
63 < #ifdef __powerpc__
64 < #define EMULATED_PPC 0
65 < #else
66 < #define EMULATED_PPC 1
67 < #endif
62 > // Define for external components
63 > #define SHEEPSHAVER 1
64 >
65 > // Mac and host address space are the same
66 > #define REAL_ADDRESSING 1
67  
68   #define POWERPC_ROM 1
69  
70 + #if EMULATED_PPC
71 + // Handle interrupts asynchronously?
72 + #define ASYNC_IRQ 0
73 + // Mac ROM is write protected when banked memory is used
74 + #if REAL_ADDRESSING || DIRECT_ADDRESSING
75 + # define ROM_IS_WRITE_PROTECTED 0
76 + # define USE_SCRATCHMEM_SUBTERFUGE 1
77 + #else
78 + # define ROM_IS_WRITE_PROTECTED 1
79 + #endif
80 + // Configure PowerPC emulator
81 + #define PPC_CHECK_INTERRUPTS (ASYNC_IRQ ? 0 : 1)
82 + #define PPC_DECODE_CACHE 1
83 + #define PPC_FLIGHT_RECORDER 1
84 + #define PPC_PROFILE_COMPILE_TIME 0
85 + #define PPC_PROFILE_GENERIC_CALLS 0
86 + #define KPX_MAX_CPUS 1
87 + #else
88 + // Mac ROM is write protected
89 + #define ROM_IS_WRITE_PROTECTED 1
90 + #define USE_SCRATCHMEM_SUBTERFUGE 0
91 + #endif
92 +
93   // Data types
94   typedef unsigned char uint8;
95   typedef signed char int8;
# Line 92 | Line 114 | typedef long int32;
114   #if SIZEOF_LONG == 8
115   typedef unsigned long uint64;
116   typedef long int64;
117 + #define VAL64(a) (a ## l)
118 + #define UVAL64(a) (a ## ul)
119   #elif SIZEOF_LONG_LONG == 8
120   typedef unsigned long long uint64;
121   typedef long long int64;
122 + #define VAL64(a) (a ## LL)
123 + #define UVAL64(a) (a ## uLL)
124   #else
125   #error "No 8 byte type, you lose."
126   #endif
127 + #if SIZEOF_VOID_P == 4
128 + typedef uint32 uintptr;
129 + typedef int32 intptr;
130 + #elif SIZEOF_VOID_P == 8
131 + typedef uint64 uintptr;
132 + typedef int64 intptr;
133 + #else
134 + #error "Unsupported size of pointer"
135 + #endif
136 +
137 + /**
138 + *              Helper functions to byteswap data
139 + **/
140 +
141 + #if defined(__GNUC__)
142 + #if defined(__x86_64__)
143 + // Linux/AMD64 currently has no asm optimized bswap_32() in <byteswap.h>
144 + #define opt_bswap_32 do_opt_bswap_32
145 + static inline uint32 do_opt_bswap_32(uint32 x)
146 + {
147 +  uint32 v;
148 +  __asm__ __volatile__ ("bswap %0" : "=r" (v) : "0" (x));
149 +  return v;
150 + }
151 + #endif
152 + #endif
153 +
154 + #ifdef HAVE_BYTESWAP_H
155 + #include <byteswap.h>
156 + #endif
157 +
158 + #ifdef  opt_bswap_16
159 + #undef  bswap_16
160 + #define bswap_16 opt_bswap_16
161 + #endif
162 + #ifndef bswap_16
163 + #define bswap_16 generic_bswap_16
164 + #endif
165 +
166 + static inline uint16 generic_bswap_16(uint16 x)
167 + {
168 +  return ((x & 0xff) << 8) | ((x >> 8) & 0xff);
169 + }
170 +
171 + #ifdef  opt_bswap_32
172 + #undef  bswap_32
173 + #define bswap_32 opt_bswap_32
174 + #endif
175 + #ifndef bswap_32
176 + #define bswap_32 generic_bswap_32
177 + #endif
178 +
179 + static inline uint32 generic_bswap_32(uint32 x)
180 + {
181 +  return (((x & 0xff000000) >> 24) |
182 +                  ((x & 0x00ff0000) >>  8) |
183 +                  ((x & 0x0000ff00) <<  8) |
184 +                  ((x & 0x000000ff) << 24) );
185 + }
186 +
187 + #ifdef  opt_bswap_64
188 + #undef  bswap_64
189 + #define bswap_64 opt_bswap_64
190 + #endif
191 + #ifndef bswap_64
192 + #define bswap_64 generic_bswap_64
193 + #endif
194 +
195 + static inline uint64 generic_bswap_64(uint64 x)
196 + {
197 +  return (((x & UVAL64(0xff00000000000000)) >> 56) |
198 +                  ((x & UVAL64(0x00ff000000000000)) >> 40) |
199 +                  ((x & UVAL64(0x0000ff0000000000)) >> 24) |
200 +                  ((x & UVAL64(0x000000ff00000000)) >>  8) |
201 +                  ((x & UVAL64(0x00000000ff000000)) <<  8) |
202 +                  ((x & UVAL64(0x0000000000ff0000)) << 24) |
203 +                  ((x & UVAL64(0x000000000000ff00)) << 40) |
204 +                  ((x & UVAL64(0x00000000000000ff)) << 56) );
205 + }
206 +
207 + #ifdef WORDS_BIGENDIAN
208 + static inline uint16 tswap16(uint16 x) { return x; }
209 + static inline uint32 tswap32(uint32 x) { return x; }
210 + static inline uint64 tswap64(uint64 x) { return x; }
211 + #else
212 + static inline uint16 tswap16(uint16 x) { return bswap_16(x); }
213 + static inline uint32 tswap32(uint32 x) { return bswap_32(x); }
214 + static inline uint64 tswap64(uint64 x) { return bswap_64(x); }
215 + #endif
216 +
217 + // spin locks
218 + #ifdef __GNUC__
219 +
220 + #if defined(__powerpc__) || defined(__ppc__)
221 + #define HAVE_TEST_AND_SET 1
222 + static inline int testandset(volatile int *p)
223 + {
224 +        int ret;
225 +        __asm__ __volatile__("0:    lwarx       %0,0,%1\n"
226 +                                                 "      xor.    %0,%3,%0\n"
227 +                                                 "      bne             1f\n"
228 +                                                 "      stwcx.  %2,0,%1\n"
229 +                                                 "      bne-    0b\n"
230 +                                                 "1:    "
231 +                                                 : "=&r" (ret)
232 +                                                 : "r" (p), "r" (1), "r" (0)
233 +                                                 : "cr0", "memory");
234 +        return ret;
235 + }
236 + #endif
237 +
238 + #ifdef __i386__
239 + #define HAVE_TEST_AND_SET 1
240 + static inline int testandset(volatile int *p)
241 + {
242 +        int ret;
243 +        long int readval;
244 +        /* Note: the "xchg" instruction does not need a "lock" prefix */
245 +        __asm__ __volatile__("xchgl %0, %1"
246 +                                                 : "=r" (ret), "=m" (*p), "=a" (readval)
247 +                                                 : "0" (1), "m" (*p)
248 +                                                 : "memory");
249 +        return ret;
250 + }
251 + #endif
252 +
253 + #ifdef __s390__
254 + #define HAVE_TEST_AND_SET 1
255 + static inline int testandset(volatile int *p)
256 + {
257 +        int ret;
258 +
259 +        __asm__ __volatile__("0: cs    %0,%1,0(%2)\n"
260 +                                                 "   jl    0b"
261 +                                                 : "=&d" (ret)
262 +                                                 : "r" (1), "a" (p), "0" (*p)
263 +                                                 : "cc", "memory" );
264 +        return ret;
265 + }
266 + #endif
267 +
268 + #ifdef __alpha__
269 + #define HAVE_TEST_AND_SET 1
270 + static inline int testandset(volatile int *p)
271 + {
272 +        int ret;
273 +        unsigned long one;
274 +
275 +        __asm__ __volatile__("0:        mov 1,%2\n"
276 +                                                 "      ldl_l %0,%1\n"
277 +                                                 "      stl_c %2,%1\n"
278 +                                                 "      beq %2,1f\n"
279 +                                                 ".subsection 2\n"
280 +                                                 "1:    br 0b\n"
281 +                                                 ".previous"
282 +                                                 : "=r" (ret), "=m" (*p), "=r" (one)
283 +                                                 : "m" (*p));
284 +        return ret;
285 + }
286 + #endif
287 +
288 + #ifdef __sparc__
289 + #define HAVE_TEST_AND_SET 1
290 + static inline int testandset(volatile int *p)
291 + {
292 +        int ret;
293 +
294 +        __asm__ __volatile__("ldstub    [%1], %0"
295 +                                                 : "=r" (ret)
296 +                                                 : "r" (p)
297 +                                                 : "memory");
298 +
299 +        return (ret ? 1 : 0);
300 + }
301 + #endif
302 +
303 + #ifdef __arm__
304 + #define HAVE_TEST_AND_SET 1
305 + static inline int testandset(volatile int *p)
306 + {
307 +        register unsigned int ret;
308 +        __asm__ __volatile__("swp %0, %1, [%2]"
309 +                                                 : "=r"(ret)
310 +                                                 : "0"(1), "r"(p));
311 +        
312 +        return ret;
313 + }
314 + #endif
315 +
316 + #endif /* __GNUC__ */
317 +
318 + #if HAVE_TEST_AND_SET
319 + #define HAVE_SPINLOCKS 1
320 + typedef volatile int spinlock_t;
321 +
322 + static const spinlock_t SPIN_LOCK_UNLOCKED = 0;
323 +
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 + #endif
339  
340   // Time data type for Time Manager emulation
341   #ifdef HAVE_CLOCK_GETTIME
# Line 106 | Line 344 | typedef struct timespec tm_time_t;
344   typedef struct timeval tm_time_t;
345   #endif
346  
347 + // Timing functions
348 + extern uint64 GetTicks_usec(void);
349 + extern void Delay_usec(uint32 usec);
350 +
351 + // Setup pthread attributes
352 + extern void Set_pthread_attr(pthread_attr_t *attr, int priority);
353 +
354   // Various definitions
355   typedef struct rgb_color {
356          uint8           red;
# Line 114 | Line 359 | typedef struct rgb_color {
359          uint8           alpha;
360   } rgb_color;
361  
362 + // X11 display fast locks
363 + #ifdef HAVE_SPINLOCKS
364 + #define X11_LOCK_TYPE spinlock_t
365 + #define X11_LOCK_INIT SPIN_LOCK_UNLOCKED
366 + #define XDisplayLock() spin_lock(&x_display_lock)
367 + #define XDisplayUnlock() spin_unlock(&x_display_lock)
368 + #elif defined(HAVE_PTHREADS)
369 + #define X11_LOCK_TYPE pthread_mutex_t
370 + #define X11_LOCK_INIT PTHREAD_MUTEX_INITIALIZER
371 + #define XDisplayLock() pthread_mutex_lock(&x_display_lock);
372 + #define XDisplayUnlock() pthread_mutex_unlock(&x_display_lock);
373 + #else
374 + #define XDisplayLock()
375 + #define XDisplayUnlock()
376 + #endif
377 + #ifdef X11_LOCK_TYPE
378 + extern X11_LOCK_TYPE x_display_lock;
379 + #endif
380 +
381   // Macro for calling MacOS routines
382   #define CallMacOS(type, tvect) call_macos((uint32)tvect)
383   #define CallMacOS1(type, tvect, arg1) call_macos1((uint32)tvect, (uint32)arg1)
# Line 124 | Line 388 | typedef struct rgb_color {
388   #define CallMacOS6(type, tvect, arg1, arg2, arg3, arg4, arg5, arg6) call_macos6((uint32)tvect, (uint32)arg1, (uint32)arg2, (uint32)arg3, (uint32)arg4, (uint32)arg5, (uint32)arg6)
389   #define CallMacOS7(type, tvect, arg1, arg2, arg3, arg4, arg5, arg6, arg7) call_macos7((uint32)tvect, (uint32)arg1, (uint32)arg2, (uint32)arg3, (uint32)arg4, (uint32)arg5, (uint32)arg6, (uint32)arg7)
390  
391 < extern "C" uint32 call_macos(uint32 tvect);
392 < extern "C" uint32 call_macos1(uint32 tvect, uint32 arg1);
393 < extern "C" uint32 call_macos2(uint32 tvect, uint32 arg1, uint32 arg2);
394 < extern "C" uint32 call_macos3(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3);
395 < extern "C" uint32 call_macos4(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3, uint32 arg4);
396 < extern "C" uint32 call_macos5(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3, uint32 arg4, uint32 arg5);
397 < extern "C" uint32 call_macos6(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3, uint32 arg4, uint32 arg5, uint32 arg6);
398 < extern "C" uint32 call_macos7(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3, uint32 arg4, uint32 arg5, uint32 arg6, uint32 arg7);
391 > #ifdef __cplusplus
392 > extern "C" {
393 > #endif
394 > extern uint32 call_macos(uint32 tvect);
395 > extern uint32 call_macos1(uint32 tvect, uint32 arg1);
396 > extern uint32 call_macos2(uint32 tvect, uint32 arg1, uint32 arg2);
397 > extern uint32 call_macos3(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3);
398 > extern uint32 call_macos4(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3, uint32 arg4);
399 > extern uint32 call_macos5(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3, uint32 arg4, uint32 arg5);
400 > extern uint32 call_macos6(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3, uint32 arg4, uint32 arg5, uint32 arg6);
401 > extern uint32 call_macos7(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3, uint32 arg4, uint32 arg5, uint32 arg6, uint32 arg7);
402 > #ifdef __cplusplus
403 > }
404 > #endif
405  
406   #endif

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