From b6d455a02bd338e9dc0faa09d4d8177ecd8d569a Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Petr=20Mr=C3=A1zek?= Date: Sun, 10 Apr 2016 15:53:05 +0200 Subject: NOISSUE reorganize and document libraries --- libraries/classparser/src/javaendian.h | 76 ++++++++++++++++++++++++++++++++++ 1 file changed, 76 insertions(+) create mode 100644 libraries/classparser/src/javaendian.h (limited to 'libraries/classparser/src/javaendian.h') diff --git a/libraries/classparser/src/javaendian.h b/libraries/classparser/src/javaendian.h new file mode 100644 index 00000000..d488b382 --- /dev/null +++ b/libraries/classparser/src/javaendian.h @@ -0,0 +1,76 @@ +#pragma once +#include + +/** + * Swap bytes between big endian and local number representation + */ +namespace util +{ +#ifdef MULTIMC_BIG_ENDIAN +inline uint64_t bigswap(uint64_t x) +{ + return x; +} +; +inline uint32_t bigswap(uint32_t x) +{ + return x; +} +; +inline uint16_t bigswap(uint16_t x) +{ + return x; +} +; +inline int64_t bigswap(int64_t x) +{ + return x; +} +; +inline int32_t bigswap(int32_t x) +{ + return x; +} +; +inline int16_t bigswap(int16_t x) +{ + return x; +} +; +#else +inline uint64_t bigswap(uint64_t x) +{ + return (x >> 56) | ((x << 40) & 0x00FF000000000000) | ((x << 24) & 0x0000FF0000000000) | + ((x << 8) & 0x000000FF00000000) | ((x >> 8) & 0x00000000FF000000) | + ((x >> 24) & 0x0000000000FF0000) | ((x >> 40) & 0x000000000000FF00) | (x << 56); +} +; +inline uint32_t bigswap(uint32_t x) +{ + return (x >> 24) | ((x << 8) & 0x00FF0000) | ((x >> 8) & 0x0000FF00) | (x << 24); +} +; +inline uint16_t bigswap(uint16_t x) +{ + return (x >> 8) | (x << 8); +} +; +inline int64_t bigswap(int64_t x) +{ + return (x >> 56) | ((x << 40) & 0x00FF000000000000) | ((x << 24) & 0x0000FF0000000000) | + ((x << 8) & 0x000000FF00000000) | ((x >> 8) & 0x00000000FF000000) | + ((x >> 24) & 0x0000000000FF0000) | ((x >> 40) & 0x000000000000FF00) | (x << 56); +} +; +inline int32_t bigswap(int32_t x) +{ + return (x >> 24) | ((x << 8) & 0x00FF0000) | ((x >> 8) & 0x0000FF00) | (x << 24); +} +; +inline int16_t bigswap(int16_t x) +{ + return (x >> 8) | (x << 8); +} +; +#endif +} -- cgit v1.2.3