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Comparing libecb/ecb.h (file contents):
Revision 1.114 by root, Wed Dec 19 23:33:47 2012 UTC vs.
Revision 1.124 by root, Tue Dec 3 15:35:14 2013 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:
… …
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 __x86_64 || _M_AMD64
70 #if __ILP32 70 #if _ILP32
71 #define ECB_AMD64_X32 71 #define ECB_AMD64_X32 1
72 #else 72 #else
73 #define ECB_AMD64 73 #define ECB_AMD64 1
74 #endif 74 #endif
75#endif 75#endif
76 76
77/* many compilers define _GNUC_ to some versions but then only implement 77/* many compilers define _GNUC_ to some versions but then only implement
78 * what their idiot authors think are the "more important" extensions, 78 * what their idiot authors think are the "more important" extensions,
… …
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")
145 #elif defined __mips__ 145 #elif defined __mips__
146 /* GNU/Linux emulates sync on mips1 architectures, so we force its use */
147 /* anybody else who still uses mips1 is supposed to send in their version, with detection code. */
146 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") 148 #define ECB_MEMORY_FENCE __asm__ __volatile__ (".set mips2; sync; .set mips0" : : : "memory")
147 #elif defined __alpha__ 149 #elif defined __alpha__
148 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory") 150 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory")
149 #elif defined __hppa__ 151 #elif defined __hppa__
150 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory") 152 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
151 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") 153 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
152 #elif defined __ia64__ 154 #elif defined __ia64__
153 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mf" : : : "memory") 155 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mf" : : : "memory")
156 #elif defined __m68k__
157 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
158 #elif defined __m88k__
159 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("tb1 0,%%r0,128" : : : "memory")
160 #elif defined __sh__
161 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
154 #endif 162 #endif
155 #endif 163 #endif
156#endif 164#endif
157 165
158#ifndef ECB_MEMORY_FENCE 166#ifndef ECB_MEMORY_FENCE
… …
565 || defined __s390__ || defined __s390x__ \ 573 || defined __s390__ || defined __s390x__ \
566 || defined __mips__ \ 574 || defined __mips__ \
567 || defined __alpha__ \ 575 || defined __alpha__ \
568 || defined __hppa__ \ 576 || defined __hppa__ \
569 || defined __ia64__ \ 577 || defined __ia64__ \
578 || defined __m68k__ \
579 || defined __m88k__ \
580 || defined __sh__ \
570 || defined _M_IX86 || defined _M_AMD64 || defined _M_IA64 581 || defined _M_IX86 || defined _M_AMD64 || defined _M_IA64
571 #define ECB_STDFP 1 582 #define ECB_STDFP 1
572 #include <string.h> /* for memcpy */ 583 #include <string.h> /* for memcpy */
573#else 584#else
574 #define ECB_STDFP 0 585 #define ECB_STDFP 0
575 #include <math.h> /* for frexp*, ldexp* */
576#endif 586#endif
577 587
578#ifndef ECB_NO_LIBM 588#ifndef ECB_NO_LIBM
589
590 #include <math.h> /* for frexp*, ldexp*, INFINITY, NAN */
591
592 /* only the oldest of old doesn't have this one. solaris. */
593 #ifdef INFINITY
594 #define ECB_INFINITY INFINITY
595 #else
596 #define ECB_INFINITY HUGE_VAL
597 #endif
598
599 #ifdef NAN
600 #define ECB_NAN NAN
601 #else
602 #define ECB_NAN ECB_INFINITY
603 #endif
604
605 /* converts an ieee half/binary16 to a float */
606 ecb_function_ float ecb_binary16_to_float (uint16_t x) ecb_const;
607 ecb_function_ float
608 ecb_binary16_to_float (uint16_t x)
609 {
610 int e = (x >> 10) & 0x1f;
611 int m = x & 0x3ff;
612 float r;
613
614 if (!e ) r = ldexpf (m , -24);
615 else if (e != 31) r = ldexpf (m + 0x400, e - 25);
616 else if (m ) r = ECB_NAN;
617 else r = ECB_INFINITY;
618
619 return x & 0x8000 ? -r : r;
620 }
579 621
580 /* convert a float to ieee single/binary32 */ 622 /* convert a float to ieee single/binary32 */
581 ecb_function_ uint32_t ecb_float_to_binary32 (float x) ecb_const; 623 ecb_function_ uint32_t ecb_float_to_binary32 (float x) ecb_const;
582 ecb_function_ uint32_t 624 ecb_function_ uint32_t
583 ecb_float_to_binary32 (float x) 625 ecb_float_to_binary32 (float x)

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