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Comparing CBOR-XS/ecb.h (file contents):
Revision 1.1 by root, Fri Oct 25 23:09:45 2013 UTC vs.
Revision 1.6 by root, Sun Jan 5 14:24:54 2014 UTC

1/* 1/*
2 * libecb - http://software.schmorp.de/pkg/libecb 2 * libecb - http://software.schmorp.de/pkg/libecb
3 * 3 *
4 * Copyright (©) 2009-2012 Marc Alexander Lehmann <libecb@schmorp.de> 4 * Copyright (©) 2009-2013 Marc Alexander Lehmann <libecb@schmorp.de>
5 * Copyright (©) 2011 Emanuele Giaquinta 5 * Copyright (©) 2011 Emanuele Giaquinta
6 * All rights reserved. 6 * All rights reserved.
7 * 7 *
8 * Redistribution and use in source and binary forms, with or without modifica- 8 * Redistribution and use in source and binary forms, with or without modifica-
9 * tion, are permitted provided that the following conditions are met: 9 * tion, are permitted provided that the following conditions are met:
… …
64 #define ECB_PTRSIZE 4 64 #define ECB_PTRSIZE 4
65 #endif 65 #endif
66#endif 66#endif
67 67
68/* work around x32 idiocy by defining proper macros */ 68/* work around x32 idiocy by defining proper macros */
69#if __x86_64 || _M_AMD64 69#if __amd64 || __x86_64 || _M_AMD64 || _M_X64
70 #if _ILP32 70 #if _ILP32
71 #define ECB_AMD64_X32 1 71 #define ECB_AMD64_X32 1
72 #else 72 #else
73 #define ECB_AMD64 1 73 #define ECB_AMD64 1
74 #endif 74 #endif
… …
134 || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ 134 || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__
135 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory") 135 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory")
136 #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \ 136 #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \
137 || defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__ 137 || defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__
138 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory") 138 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory")
139 #elif __sparc || __sparc__ 139 #elif (__sparc || __sparc__) && !__sparcv8
140 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory") 140 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory")
141 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory") 141 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory")
142 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore") 142 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore")
143 #elif defined __s390__ || defined __s390x__ 143 #elif defined __s390__ || defined __s390x__
144 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory") 144 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory")
… …
177 * #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST) 177 * #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST)
178 */ 178 */
179 179
180 #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__ 180 #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__
181 #define ECB_MEMORY_FENCE __sync_synchronize () 181 #define ECB_MEMORY_FENCE __sync_synchronize ()
182 #elif _MSC_VER >= 1500 /* VC++ 2008 */
183 /* apparently, microsoft broke all the memory barrier stuff in Visual Studio 2008... */
184 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
185 #define ECB_MEMORY_FENCE _ReadWriteBarrier (); MemoryBarrier()
186 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier (); MemoryBarrier() /* according to msdn, _ReadBarrier is not a load fence */
187 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier (); MemoryBarrier()
182 #elif _MSC_VER >= 1400 /* VC++ 2005 */ 188 #elif _MSC_VER >= 1400 /* VC++ 2005 */
183 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) 189 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
184 #define ECB_MEMORY_FENCE _ReadWriteBarrier () 190 #define ECB_MEMORY_FENCE _ReadWriteBarrier ()
185 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */ 191 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */
186 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier () 192 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier ()
… …
581 || defined _M_IX86 || defined _M_AMD64 || defined _M_IA64 587 || defined _M_IX86 || defined _M_AMD64 || defined _M_IA64
582 #define ECB_STDFP 1 588 #define ECB_STDFP 1
583 #include <string.h> /* for memcpy */ 589 #include <string.h> /* for memcpy */
584#else 590#else
585 #define ECB_STDFP 0 591 #define ECB_STDFP 0
586 #include <math.h> /* for frexp*, ldexp* */
587#endif 592#endif
588 593
589#ifndef ECB_NO_LIBM 594#ifndef ECB_NO_LIBM
595
596 #include <math.h> /* for frexp*, ldexp*, INFINITY, NAN */
597
598 /* only the oldest of old doesn't have this one. solaris. */
599 #ifdef INFINITY
600 #define ECB_INFINITY INFINITY
601 #else
602 #define ECB_INFINITY HUGE_VAL
603 #endif
604
605 #ifdef NAN
606 #define ECB_NAN NAN
607 #else
608 #define ECB_NAN ECB_INFINITY
609 #endif
610
611 /* converts an ieee half/binary16 to a float */
612 ecb_function_ float ecb_binary16_to_float (uint16_t x) ecb_const;
613 ecb_function_ float
614 ecb_binary16_to_float (uint16_t x)
615 {
616 int e = (x >> 10) & 0x1f;
617 int m = x & 0x3ff;
618 float r;
619
620 if (!e ) r = ldexpf (m , -24);
621 else if (e != 31) r = ldexpf (m + 0x400, e - 25);
622 else if (m ) r = ECB_NAN;
623 else r = ECB_INFINITY;
624
625 return x & 0x8000 ? -r : r;
626 }
590 627
591 /* convert a float to ieee single/binary32 */ 628 /* convert a float to ieee single/binary32 */
592 ecb_function_ uint32_t ecb_float_to_binary32 (float x) ecb_const; 629 ecb_function_ uint32_t ecb_float_to_binary32 (float x) ecb_const;
593 ecb_function_ uint32_t 630 ecb_function_ uint32_t
594 ecb_float_to_binary32 (float x) 631 ecb_float_to_binary32 (float x)

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