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#ifdef _MSC_VER |
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#include <stdlib.h> |
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#define bswap_32(x) _byteswap_ulong(x) |
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#define bswap_64(x) _byteswap_uint64(x) |
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#elif defined(__APPLE__) |
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// Mac OS X / Darwin features |
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#include <libkern/OSByteOrder.h> |
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#define bswap_32(x) OSSwapInt32(x) |
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#define bswap_64(x) OSSwapInt64(x) |
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#elif defined(__sun) || defined(sun) |
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|
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#include <sys/byteorder.h> |
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#define bswap_32(x) BSWAP_32(x) |
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#define bswap_64(x) BSWAP_64(x) |
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#elif defined(__FreeBSD__) |
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#include <sys/endian.h> |
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#define bswap_32(x) bswap32(x) |
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#define bswap_64(x) bswap64(x) |
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#elif defined(__OpenBSD__) |
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#include <sys/types.h> |
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#define bswap_32(x) swap32(x) |
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#define bswap_64(x) swap64(x) |
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#elif defined(__NetBSD__) |
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#include <sys/types.h> |
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#include <machine/bswap.h> |
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#if defined(__BSWAP_RENAME) && !defined(__bswap_32) |
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#define bswap_32(x) bswap32(x) |
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#define bswap_64(x) bswap64(x) |
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#endif |
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#else |
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#include <byteswap.h> |
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#endif |
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0x00010001 |
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- add ecb_is_pot32/64. |
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- add intptr_t/uintptr_t. |
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- add ECB_PTRSIZE. |
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- more macros for C/C++ version checks. |
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- support C11 atomics for memory fences. |
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- support gcc-4.7 atomics for memory fences. |
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- support m68k, m88k and sh (patch by Miod Vallat). |
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- add ecb_binary16_to_float. |
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|
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TODO: ecb_restrict_array etc. http://ue.tst.eu/5093eafd713ec5fda776d8065070aa4c.txt |
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TODO: ffs/clz |
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64 bit variants of everything |
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TODO: examples from X for clz/ctz |
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TODO: arithmetic right shift |
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TODO: template/generic functions for x32/x64 and so on |
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TODO: #define ecb_integer_multiples_of(n,d) ((char (*)[d])(n) - (char (*)[d])0) |
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TODO: generalised shift |
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TODO: #define ECB_FAST_UNALIGNED_ACCESS |
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unsigned long gensh(unsigned long v, int x) { |
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int a, b; |
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a = (v << x) & -(((unsigned int)x) < 32); |
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x = -x; |
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b = (v >> x) & -(((unsigned int)x) < 32); |
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return a|b; |
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} |
