ViewVC Help
View File | Revision Log | Show Annotations | Revision Graph | Root Listing
root/cebix/SheepShaver/src/Unix/sysdeps.h
(Generate patch)

Comparing SheepShaver/src/Unix/sysdeps.h (file contents):
Revision 1.1 by cebix, 2002-02-04T16:58:13Z vs.
Revision 1.7 by gbeauche, 2003-09-29T15:46:07Z

# 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 + #else
81 + // Mac ROM is write protected
82 + #define ROM_IS_WRITE_PROTECTED 1
83 + #define USE_SCRATCHMEM_SUBTERFUGE 0
84 + #endif
85 +
86   // Data types
87   typedef unsigned char uint8;
88   typedef signed char int8;
# Line 92 | Line 107 | typedef long int32;
107   #if SIZEOF_LONG == 8
108   typedef unsigned long uint64;
109   typedef long int64;
110 + #define VAL64(a) (a ## l)
111 + #define UVAL64(a) (a ## ul)
112   #elif SIZEOF_LONG_LONG == 8
113   typedef unsigned long long uint64;
114   typedef long long int64;
115 + #define VAL64(a) (a ## LL)
116 + #define UVAL64(a) (a ## uLL)
117   #else
118   #error "No 8 byte type, you lose."
119   #endif
120 + #if SIZEOF_VOID_P == 4
121 + typedef uint32 uintptr;
122 + typedef int32 intptr;
123 + #elif SIZEOF_VOID_P == 8
124 + typedef uint64 uintptr;
125 + typedef int64 intptr;
126 + #else
127 + #error "Unsupported size of pointer"
128 + #endif
129 +
130 + // Helper functions to byteswap data
131 + #ifdef HAVE_BYTESWAP_H
132 + #include <byteswap.h>
133 + #endif
134 +
135 + #ifndef bswap_16
136 + #define bswap_16 generic_bswap_16
137 + #endif
138 +
139 + static inline uint16 generic_bswap_16(uint16 x)
140 + {
141 +  return ((x & 0xff) << 8) | ((x >> 8) & 0xff);
142 + }
143 +
144 + #ifndef bswap_32
145 + #define bswap_32 generic_bswap_32
146 + #endif
147 +
148 + static inline uint32 generic_bswap_32(uint32 x)
149 + {
150 +  return (((x & 0xff000000) >> 24) |
151 +                  ((x & 0x00ff0000) >>  8) |
152 +                  ((x & 0x0000ff00) <<  8) |
153 +                  ((x & 0x000000ff) << 24) );
154 + }
155 +
156 + #ifndef bswap_64
157 + #define bswap_64 generic_bswap_64
158 + #endif
159 +
160 + static inline uint64 generic_bswap_64(uint64 x)
161 + {
162 +  return (((x & UVAL64(0xff00000000000000)) >> 56) |
163 +                  ((x & UVAL64(0x00ff000000000000)) >> 40) |
164 +                  ((x & UVAL64(0x0000ff0000000000)) >> 24) |
165 +                  ((x & UVAL64(0x000000ff00000000)) >>  8) |
166 +                  ((x & UVAL64(0x00000000ff000000)) <<  8) |
167 +                  ((x & UVAL64(0x0000000000ff0000)) << 24) |
168 +                  ((x & UVAL64(0x000000000000ff00)) << 40) |
169 +                  ((x & UVAL64(0x00000000000000ff)) << 56) );
170 + }
171 +
172 + #ifdef WORDS_BIGENDIAN
173 + static inline uint16 tswap16(uint16 x) { return x; }
174 + static inline uint32 tswap32(uint32 x) { return x; }
175 + static inline uint64 tswap64(uint64 x) { return x; }
176 + #else
177 + static inline uint16 tswap16(uint16 x) { return bswap_16(x); }
178 + static inline uint32 tswap32(uint32 x) { return bswap_32(x); }
179 + static inline uint64 tswap64(uint64 x) { return bswap_64(x); }
180 + #endif
181 +
182 + // spin locks
183 + #ifdef __GNUC__
184 +
185 + #ifdef __powerpc__
186 + #define HAVE_TEST_AND_SET 1
187 + static inline int testandset(int *p)
188 + {
189 +        int ret;
190 +        __asm__ __volatile__("0:    lwarx %0,0,%1 ;"
191 +                                                 "      xor. %0,%3,%0;"
192 +                                                 "      bne 1f;"
193 +                                                 "      stwcx. %2,0,%1;"
194 +                                                 "      bne- 0b;"
195 +                                                 "1:    "
196 +                                                 : "=&r" (ret)
197 +                                                 : "r" (p), "r" (1), "r" (0)
198 +                                                 : "cr0", "memory");
199 +        return ret;
200 + }
201 + #endif
202 +
203 + #ifdef __i386__
204 + #define HAVE_TEST_AND_SET 1
205 + static inline int testandset(int *p)
206 + {
207 +        char ret;
208 +        long int readval;
209 +        
210 +        __asm__ __volatile__("lock; cmpxchgl %3, %1; sete %0"
211 +                                                 : "=q" (ret), "=m" (*p), "=a" (readval)
212 +                                                 : "r" (1), "m" (*p), "a" (0)
213 +                                                 : "memory");
214 +        return ret;
215 + }
216 + #endif
217 +
218 + #ifdef __s390__
219 + #define HAVE_TEST_AND_SET 1
220 + static inline int testandset(int *p)
221 + {
222 +        int ret;
223 +
224 +        __asm__ __volatile__("0: cs    %0,%1,0(%2)\n"
225 +                                                 "   jl    0b"
226 +                                                 : "=&d" (ret)
227 +                                                 : "r" (1), "a" (p), "0" (*p)
228 +                                                 : "cc", "memory" );
229 +        return ret;
230 + }
231 + #endif
232 +
233 + #ifdef __alpha__
234 + #define HAVE_TEST_AND_SET 1
235 + static inline int testandset(int *p)
236 + {
237 +        int ret;
238 +        unsigned long one;
239 +
240 +        __asm__ __volatile__("0:        mov 1,%2\n"
241 +                                                 "      ldl_l %0,%1\n"
242 +                                                 "      stl_c %2,%1\n"
243 +                                                 "      beq %2,1f\n"
244 +                                                 ".subsection 2\n"
245 +                                                 "1:    br 0b\n"
246 +                                                 ".previous"
247 +                                                 : "=r" (ret), "=m" (*p), "=r" (one)
248 +                                                 : "m" (*p));
249 +        return ret;
250 + }
251 + #endif
252 +
253 + #ifdef __sparc__
254 + #define HAVE_TEST_AND_SET 1
255 + static inline int testandset(int *p)
256 + {
257 +        int ret;
258 +
259 +        __asm__ __volatile__("ldstub    [%1], %0"
260 +                                                 : "=r" (ret)
261 +                                                 : "r" (p)
262 +                                                 : "memory");
263 +
264 +        return (ret ? 1 : 0);
265 + }
266 + #endif
267 +
268 + #ifdef __arm__
269 + #define HAVE_TEST_AND_SET 1
270 + static inline int testandset(int *p)
271 + {
272 +        register unsigned int ret;
273 +        __asm__ __volatile__("swp %0, %1, [%2]"
274 +                                                 : "=r"(ret)
275 +                                                 : "0"(1), "r"(p));
276 +        
277 +        return ret;
278 + }
279 + #endif
280 +
281 + #endif /* __GNUC__ */
282 +
283 + #if HAVE_TEST_AND_SET
284 + #define HAVE_SPINLOCKS 1
285 + typedef int spinlock_t;
286 +
287 + const spinlock_t SPIN_LOCK_UNLOCKED = 0;
288 +
289 + static inline void spin_lock(spinlock_t *lock)
290 + {
291 +        while (testandset(lock));
292 + }
293 +
294 + static inline void spin_unlock(spinlock_t *lock)
295 + {
296 +        *lock = 0;
297 + }
298 +
299 + static inline int spin_trylock(spinlock_t *lock)
300 + {
301 +        return !testandset(lock);
302 + }
303 + #endif
304  
305   // Time data type for Time Manager emulation
306   #ifdef HAVE_CLOCK_GETTIME
# Line 106 | Line 309 | typedef struct timespec tm_time_t;
309   typedef struct timeval tm_time_t;
310   #endif
311  
312 + // Setup pthread attributes
313 + extern void Set_pthread_attr(pthread_attr_t *attr, int priority);
314 +
315   // Various definitions
316   typedef struct rgb_color {
317          uint8           red;
# Line 124 | Line 330 | typedef struct rgb_color {
330   #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)
331   #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)
332  
333 < extern "C" uint32 call_macos(uint32 tvect);
334 < extern "C" uint32 call_macos1(uint32 tvect, uint32 arg1);
335 < extern "C" uint32 call_macos2(uint32 tvect, uint32 arg1, uint32 arg2);
336 < extern "C" uint32 call_macos3(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3);
337 < extern "C" uint32 call_macos4(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3, uint32 arg4);
338 < extern "C" uint32 call_macos5(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3, uint32 arg4, uint32 arg5);
339 < extern "C" uint32 call_macos6(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3, uint32 arg4, uint32 arg5, uint32 arg6);
340 < extern "C" uint32 call_macos7(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3, uint32 arg4, uint32 arg5, uint32 arg6, uint32 arg7);
333 > #ifdef __cplusplus
334 > extern "C" {
335 > #endif
336 > extern uint32 call_macos(uint32 tvect);
337 > extern uint32 call_macos1(uint32 tvect, uint32 arg1);
338 > extern uint32 call_macos2(uint32 tvect, uint32 arg1, uint32 arg2);
339 > extern uint32 call_macos3(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3);
340 > extern uint32 call_macos4(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3, uint32 arg4);
341 > extern uint32 call_macos5(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3, uint32 arg4, uint32 arg5);
342 > extern uint32 call_macos6(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3, uint32 arg4, uint32 arg5, uint32 arg6);
343 > extern uint32 call_macos7(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3, uint32 arg4, uint32 arg5, uint32 arg6, uint32 arg7);
344 > #ifdef __cplusplus
345 > }
346 > #endif
347  
348   #endif

Diff Legend

Removed lines
+ Added lines
< Changed lines
> Changed lines