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Comparing libecb/ecb.h (file contents):
Revision 1.120 by root, Sat Oct 26 09:13:54 2013 UTC vs.
Revision 1.125 by root, Wed Dec 4 10:17:49 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:
… …
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")
… …
585 #define ECB_STDFP 0 585 #define ECB_STDFP 0
586#endif 586#endif
587 587
588#ifndef ECB_NO_LIBM 588#ifndef ECB_NO_LIBM
589 589
590 #include <math.h> /* for frexp*, ldexp* */ 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
591 604
592 /* converts an ieee half/binary16 to a float */ 605 /* converts an ieee half/binary16 to a float */
593 ecb_function_ float ecb_binary16_to_float (uint16_t x) ecb_const; 606 ecb_function_ float ecb_binary16_to_float (uint16_t x) ecb_const;
594 ecb_function_ float 607 ecb_function_ float
595 ecb_binary16_to_float (uint16_t x) 608 ecb_binary16_to_float (uint16_t x)
596 { 609 {
597 int e = (x >> 10) & 0x1f; 610 int e = (x >> 10) & 0x1f;
598 int m = x & 0x3ff; 611 int m = x & 0x3ff;
599 float r; 612 float r;
600 613
601 if (!e)
602 r = ldexpf (m , -24); 614 if (!e ) r = ldexpf (m , -24);
603 else if (e != 31)
604 r = ldexpf (m + 0x400, e - 25); 615 else if (e != 31) r = ldexpf (m + 0x400, e - 25);
605 else if (m) 616 else if (m ) r = ECB_NAN;
606 #ifdef NAN 617 else r = ECB_INFINITY;
607 r = NAN;
608 #endif
609 else
610 r = INFINITY;
611 618
612 return x & 0x8000 ? -r : r; 619 return x & 0x8000 ? -r : r;
613 } 620 }
614 621
615 /* convert a float to ieee single/binary32 */ 622 /* convert a float to ieee single/binary32 */

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