diff options
Diffstat (limited to 'plugins/gme/game-music-emu-0.5.5/gme/blargg_endian.h')
| -rw-r--r-- | plugins/gme/game-music-emu-0.5.5/gme/blargg_endian.h | 158 |
1 files changed, 0 insertions, 158 deletions
diff --git a/plugins/gme/game-music-emu-0.5.5/gme/blargg_endian.h b/plugins/gme/game-music-emu-0.5.5/gme/blargg_endian.h deleted file mode 100644 index 4d160d2f..00000000 --- a/plugins/gme/game-music-emu-0.5.5/gme/blargg_endian.h +++ /dev/null @@ -1,158 +0,0 @@ -// CPU Byte Order Utilities - -// Game_Music_Emu 0.5.5 -#ifndef BLARGG_ENDIAN -#define BLARGG_ENDIAN - -#include "blargg_common.h" - -// BLARGG_CPU_CISC: Defined if CPU has very few general-purpose registers (< 16) -#if defined (_M_IX86) || defined (_M_IA64) || defined (__i486__) || \ - defined (__x86_64__) || defined (__ia64__) || defined (__i386__) - #define BLARGG_CPU_X86 1 - #define BLARGG_CPU_CISC 1 -#endif - -#if defined (__powerpc__) || defined (__ppc__) || defined (__POWERPC__) || defined (__powerc) - #define BLARGG_CPU_POWERPC 1 -#endif - -// BLARGG_BIG_ENDIAN, BLARGG_LITTLE_ENDIAN: Determined automatically, otherwise only -// one may be #defined to 1. Only needed if something actually depends on byte order. -#if !defined (BLARGG_BIG_ENDIAN) && !defined (BLARGG_LITTLE_ENDIAN) -#ifdef __GLIBC__ - // GCC handles this for us - #include <endian.h> - #if __BYTE_ORDER == __LITTLE_ENDIAN - #define BLARGG_LITTLE_ENDIAN 1 - #elif __BYTE_ORDER == __BIG_ENDIAN - #define BLARGG_BIG_ENDIAN 1 - #endif -#else - -#if defined (LSB_FIRST) || defined (__LITTLE_ENDIAN__) || BLARGG_CPU_X86 || \ - (defined (LITTLE_ENDIAN) && LITTLE_ENDIAN+0 != 1234) - #define BLARGG_LITTLE_ENDIAN 1 -#endif - -#if defined (MSB_FIRST) || defined (__BIG_ENDIAN__) || defined (WORDS_BIGENDIAN) || \ - defined (__mips__) || defined (__sparc__) || BLARGG_CPU_POWERPC || \ - (defined (BIG_ENDIAN) && BIG_ENDIAN+0 != 4321) - #define BLARGG_BIG_ENDIAN 1 -#else - // No endian specified; assume little-endian, since it's most common - #define BLARGG_LITTLE_ENDIAN 1 -#endif -#endif -#endif - -#if BLARGG_LITTLE_ENDIAN && BLARGG_BIG_ENDIAN - #undef BLARGG_LITTLE_ENDIAN - #undef BLARGG_BIG_ENDIAN -#endif - -inline void blargg_verify_byte_order() -{ - #ifndef NDEBUG - #if BLARGG_BIG_ENDIAN - volatile int i = 1; - assert( *(volatile char*) &i == 0 ); - #elif BLARGG_LITTLE_ENDIAN - volatile int i = 1; - assert( *(volatile char*) &i != 0 ); - #endif - #endif -} - -inline unsigned get_le16( void const* p ) { - return ((unsigned char const*) p) [1] * 0x100u + - ((unsigned char const*) p) [0]; -} -inline unsigned get_be16( void const* p ) { - return ((unsigned char const*) p) [0] * 0x100u + - ((unsigned char const*) p) [1]; -} -inline blargg_ulong get_le32( void const* p ) { - return ((unsigned char const*) p) [3] * 0x01000000u + - ((unsigned char const*) p) [2] * 0x00010000u + - ((unsigned char const*) p) [1] * 0x00000100u + - ((unsigned char const*) p) [0]; -} -inline blargg_ulong get_be32( void const* p ) { - return ((unsigned char const*) p) [0] * 0x01000000u + - ((unsigned char const*) p) [1] * 0x00010000u + - ((unsigned char const*) p) [2] * 0x00000100u + - ((unsigned char const*) p) [3]; -} -inline void set_le16( void* p, unsigned n ) { - ((unsigned char*) p) [1] = (unsigned char) (n >> 8); - ((unsigned char*) p) [0] = (unsigned char) n; -} -inline void set_be16( void* p, unsigned n ) { - ((unsigned char*) p) [0] = (unsigned char) (n >> 8); - ((unsigned char*) p) [1] = (unsigned char) n; -} -inline void set_le32( void* p, blargg_ulong n ) { - ((unsigned char*) p) [3] = (unsigned char) (n >> 24); - ((unsigned char*) p) [2] = (unsigned char) (n >> 16); - ((unsigned char*) p) [1] = (unsigned char) (n >> 8); - ((unsigned char*) p) [0] = (unsigned char) n; -} -inline void set_be32( void* p, blargg_ulong n ) { - ((unsigned char*) p) [0] = (unsigned char) (n >> 24); - ((unsigned char*) p) [1] = (unsigned char) (n >> 16); - ((unsigned char*) p) [2] = (unsigned char) (n >> 8); - ((unsigned char*) p) [3] = (unsigned char) n; -} - -#if BLARGG_NONPORTABLE - // Optimized implementation if byte order is known - #if BLARGG_LITTLE_ENDIAN - #define GET_LE16( addr ) (*(BOOST::uint16_t*) (addr)) - #define GET_LE32( addr ) (*(BOOST::uint32_t*) (addr)) - #define SET_LE16( addr, data ) (void) (*(BOOST::uint16_t*) (addr) = (data)) - #define SET_LE32( addr, data ) (void) (*(BOOST::uint32_t*) (addr) = (data)) - #elif BLARGG_BIG_ENDIAN - #define GET_BE16( addr ) (*(BOOST::uint16_t*) (addr)) - #define GET_BE32( addr ) (*(BOOST::uint32_t*) (addr)) - #define SET_BE16( addr, data ) (void) (*(BOOST::uint16_t*) (addr) = (data)) - #define SET_BE32( addr, data ) (void) (*(BOOST::uint32_t*) (addr) = (data)) - #endif - - #if BLARGG_CPU_POWERPC && defined (__MWERKS__) - // PowerPC has special byte-reversed instructions - // to do: assumes that PowerPC is running in big-endian mode - // to do: implement for other compilers which don't support these macros - #define GET_LE16( addr ) (__lhbrx( (addr), 0 )) - #define GET_LE32( addr ) (__lwbrx( (addr), 0 )) - #define SET_LE16( addr, data ) (__sthbrx( (data), (addr), 0 )) - #define SET_LE32( addr, data ) (__stwbrx( (data), (addr), 0 )) - #endif -#endif - -#ifndef GET_LE16 - #define GET_LE16( addr ) get_le16( addr ) - #define GET_LE32( addr ) get_le32( addr ) - #define SET_LE16( addr, data ) set_le16( addr, data ) - #define SET_LE32( addr, data ) set_le32( addr, data ) -#endif - -#ifndef GET_BE16 - #define GET_BE16( addr ) get_be16( addr ) - #define GET_BE32( addr ) get_be32( addr ) - #define SET_BE16( addr, data ) set_be16( addr, data ) - #define SET_BE32( addr, data ) set_be32( addr, data ) -#endif - -// auto-selecting versions - -inline void set_le( BOOST::uint16_t* p, unsigned n ) { SET_LE16( p, n ); } -inline void set_le( BOOST::uint32_t* p, blargg_ulong n ) { SET_LE32( p, n ); } -inline void set_be( BOOST::uint16_t* p, unsigned n ) { SET_BE16( p, n ); } -inline void set_be( BOOST::uint32_t* p, blargg_ulong n ) { SET_BE32( p, n ); } -inline unsigned get_le( BOOST::uint16_t* p ) { return GET_LE16( p ); } -inline blargg_ulong get_le( BOOST::uint32_t* p ) { return GET_LE32( p ); } -inline unsigned get_be( BOOST::uint16_t* p ) { return GET_BE16( p ); } -inline blargg_ulong get_be( BOOST::uint32_t* p ) { return GET_BE32( p ); } - -#endif |