diff options
Diffstat (limited to 'src/common/common.h')
-rw-r--r-- | src/common/common.h | 46 |
1 files changed, 45 insertions, 1 deletions
diff --git a/src/common/common.h b/src/common/common.h index 418757855..2578d0010 100644 --- a/src/common/common.h +++ b/src/common/common.h @@ -21,7 +21,7 @@ #define STACKALIGN -#if __cplusplus >= 201103 || defined(_MSC_VER) || defined(__GXX_EXPERIMENTAL_CXX0X__) +#if __cplusplus >= 201103L || defined(_MSC_VER) || defined(__GXX_EXPERIMENTAL_CXX0X__) #define HAVE_CXX11_SYNTAX 1 #endif @@ -159,4 +159,48 @@ enum EMUSTATE_CHANGE EMUSTATE_CHANGE_STOP }; + +#ifdef _MSC_VER +#ifndef _XBOX +inline unsigned long long bswap64(unsigned long long x) { return _byteswap_uint64(x); } +inline unsigned int bswap32(unsigned int x) { return _byteswap_ulong(x); } +inline unsigned short bswap16(unsigned short x) { return _byteswap_ushort(x); } +#else +inline unsigned long long bswap64(unsigned long long x) { return __loaddoublewordbytereverse(0, &x); } +inline unsigned int bswap32(unsigned int x) { return __loadwordbytereverse(0, &x); } +inline unsigned short bswap16(unsigned short x) { return __loadshortbytereverse(0, &x); } +#endif +#else +// TODO: speedup +inline unsigned short bswap16(unsigned short x) { return (x << 8) | (x >> 8); } +inline unsigned int bswap32(unsigned int x) { return (x >> 24) | ((x & 0xFF0000) >> 8) | ((x & 0xFF00) << 8) | (x << 24);} +inline unsigned long long bswap64(unsigned long long x) {return ((unsigned long long)bswap32(x) << 32) | bswap32(x >> 32); } +#endif + +inline float bswapf(float f) { + union { + float f; + unsigned int u32; + } dat1, dat2; + + dat1.f = f; + dat2.u32 = bswap32(dat1.u32); + + return dat2.f; +} + +inline double bswapd(double f) { + union { + double f; + unsigned long long u64; + } dat1, dat2; + + dat1.f = f; + dat2.u64 = bswap64(dat1.u64); + + return dat2.f; +} + +#include "swap.h" + #endif // _COMMON_H_ |