33 #if defined(_MSC_VER) && (_MSC_VER >= 1400)
37 #ifndef __PRFCHWINTRIN_H
38 #define __PRFCHWINTRIN_H
39 static __inline__ void __attribute__((__always_inline__, __nodebug__))
40 _m_prefetch(
void *__P)
42 __builtin_prefetch (__P, 0, 3 );
54 #define SDL_LIL_ENDIAN 1234
55 #define SDL_BIG_ENDIAN 4321
61 #define SDL_BYTEORDER __BYTE_ORDER
62 #elif defined(__OpenBSD__)
64 #define SDL_BYTEORDER BYTE_ORDER
65 #elif defined(__FreeBSD__) || defined(__NetBSD__)
66 #include <sys/endian.h>
67 #define SDL_BYTEORDER BYTE_ORDER
69 #elif defined(__ORDER_LITTLE_ENDIAN__) && defined(__ORDER_BIG_ENDIAN__) && defined(__BYTE_ORDER__)
70 #if (__BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__)
71 #define SDL_BYTEORDER SDL_LIL_ENDIAN
72 #elif (__BYTE_ORDER__ == __ORDER_BIG_ENDIAN__)
73 #define SDL_BYTEORDER SDL_BIG_ENDIAN
75 #error Unsupported endianness
78 #if defined(__hppa__) || \
79 defined(__m68k__) || defined(mc68000) || defined(_M_M68K) || \
80 (defined(__MIPS__) && defined(__MIPSEB__)) || \
81 defined(__ppc__) || defined(__POWERPC__) || defined(_M_PPC) || \
83 #define SDL_BYTEORDER SDL_BIG_ENDIAN
85 #define SDL_BYTEORDER SDL_LIL_ENDIAN
102 #if defined(__GNUC__) || defined(__clang__)
103 # define HAS_BUILTIN_BSWAP16 (_SDL_HAS_BUILTIN(__builtin_bswap16)) || \
104 (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 8))
105 # define HAS_BUILTIN_BSWAP32 (_SDL_HAS_BUILTIN(__builtin_bswap32)) || \
106 (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3))
107 # define HAS_BUILTIN_BSWAP64 (_SDL_HAS_BUILTIN(__builtin_bswap64)) || \
108 (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3))
111 # define HAS_BROKEN_BSWAP (__GNUC__ == 2 && __GNUC_MINOR__ <= 95)
113 # define HAS_BUILTIN_BSWAP16 0
114 # define HAS_BUILTIN_BSWAP32 0
115 # define HAS_BUILTIN_BSWAP64 0
116 # define HAS_BROKEN_BSWAP 0
119 #if HAS_BUILTIN_BSWAP16
120 #define SDL_Swap16(x) __builtin_bswap16(x)
121 #elif defined(_MSC_VER) && (_MSC_VER >= 1400)
122 #pragma intrinsic(_byteswap_ushort)
123 #define SDL_Swap16(x) _byteswap_ushort(x)
124 #elif defined(__i386__) && !HAS_BROKEN_BSWAP
128 __asm__(
"xchgb %b0,%h0":
"=q"(x):
"0"(x));
131 #elif defined(__x86_64__)
135 __asm__(
"xchgb %b0,%h0":
"=Q"(x):
"0"(x));
138 #elif (defined(__powerpc__) || defined(__ppc__))
144 __asm__(
"rlwimi %0,%2,8,16,23":
"=&r"(result):
"0"(x >> 8),
"r"(x));
147 #elif (defined(__m68k__) && !defined(__mcoldfire__))
151 __asm__(
"rorw #8,%0":
"=d"(x):
"0"(x):
"cc");
154 #elif defined(__WATCOMC__) && defined(__386__)
156 #pragma aux SDL_Swap16 = \
168 #if HAS_BUILTIN_BSWAP32
169 #define SDL_Swap32(x) __builtin_bswap32(x)
170 #elif defined(_MSC_VER) && (_MSC_VER >= 1400)
171 #pragma intrinsic(_byteswap_ulong)
172 #define SDL_Swap32(x) _byteswap_ulong(x)
173 #elif defined(__i386__) && !HAS_BROKEN_BSWAP
177 __asm__(
"bswap %0":
"=r"(x):
"0"(x));
180 #elif defined(__x86_64__)
184 __asm__(
"bswapl %0":
"=r"(x):
"0"(x));
187 #elif (defined(__powerpc__) || defined(__ppc__))
193 __asm__(
"rlwimi %0,%2,24,16,23":
"=&r"(result):
"0" (x>>24),
"r"(x));
194 __asm__(
"rlwimi %0,%2,8,8,15" :
"=&r"(result):
"0" (result),
"r"(x));
195 __asm__(
"rlwimi %0,%2,24,0,7" :
"=&r"(result):
"0" (result),
"r"(x));
198 #elif (defined(__m68k__) && !defined(__mcoldfire__))
202 __asm__(
"rorw #8,%0\n\tswap %0\n\trorw #8,%0":
"=d"(x):
"0"(x):
"cc");
205 #elif defined(__WATCOMC__) && defined(__386__)
207 #pragma aux SDL_Swap32 = \
216 ((x >> 8) & 0x0000FF00) | (x >> 24)));
220 #if HAS_BUILTIN_BSWAP64
221 #define SDL_Swap64(x) __builtin_bswap64(x)
222 #elif defined(_MSC_VER) && (_MSC_VER >= 1400)
223 #pragma intrinsic(_byteswap_uint64)
224 #define SDL_Swap64(x) _byteswap_uint64(x)
225 #elif defined(__i386__) && !HAS_BROKEN_BSWAP
236 __asm__(
"bswapl %0 ; bswapl %1 ; xchgl %0,%1"
237 :
"=r"(v.s.a),
"=r"(v.s.b)
238 :
"0" (v.s.a),
"1"(v.s.b));
241 #elif defined(__x86_64__)
245 __asm__(
"bswapq %0":
"=r"(x):
"0"(x));
248 #elif defined(__WATCOMC__) && defined(__386__)
250 #pragma aux SDL_Swap64 = \
287 #undef HAS_BROKEN_BSWAP
288 #undef HAS_BUILTIN_BSWAP16
289 #undef HAS_BUILTIN_BSWAP32
290 #undef HAS_BUILTIN_BSWAP64
297 #if SDL_BYTEORDER == SDL_LIL_ENDIAN
298 #define SDL_SwapLE16(X) (X)
299 #define SDL_SwapLE32(X) (X)
300 #define SDL_SwapLE64(X) (X)
301 #define SDL_SwapFloatLE(X) (X)
302 #define SDL_SwapBE16(X) SDL_Swap16(X)
303 #define SDL_SwapBE32(X) SDL_Swap32(X)
304 #define SDL_SwapBE64(X) SDL_Swap64(X)
305 #define SDL_SwapFloatBE(X) SDL_SwapFloat(X)
307 #define SDL_SwapLE16(X) SDL_Swap16(X)
308 #define SDL_SwapLE32(X) SDL_Swap32(X)
309 #define SDL_SwapLE64(X) SDL_Swap64(X)
310 #define SDL_SwapFloatLE(X) SDL_SwapFloat(X)
311 #define SDL_SwapBE16(X) (X)
312 #define SDL_SwapBE32(X) (X)
313 #define SDL_SwapBE64(X) (X)
314 #define SDL_SwapFloatBE(X) (X)
SDL_FORCE_INLINE Uint32 SDL_Swap32(Uint32 x)
SDL_FORCE_INLINE Uint16 SDL_Swap16(Uint16 x)
SDL_FORCE_INLINE float SDL_SwapFloat(float x)
SDL_FORCE_INLINE Uint64 SDL_Swap64(Uint64 x)
#define SDL_static_cast(type, expression)