diff options
Diffstat (limited to 'sim/d10v/endian.c')
-rw-r--r-- | sim/d10v/endian.c | 137 |
1 files changed, 0 insertions, 137 deletions
diff --git a/sim/d10v/endian.c b/sim/d10v/endian.c deleted file mode 100644 index 9ef503e..0000000 --- a/sim/d10v/endian.c +++ /dev/null @@ -1,137 +0,0 @@ -/* If we're being compiled as a .c file, rather than being included in - d10v_sim.h, then ENDIAN_INLINE won't be defined yet. */ - -#ifndef ENDIAN_INLINE -#define NO_ENDIAN_INLINE -#include "d10v_sim.h" -#define ENDIAN_INLINE -#endif - -ENDIAN_INLINE uint16 -get_word (x) - uint8 *x; -{ -#if (defined(__i386__) || defined(__i486__) || defined(__i586__) || defined(__i686__)) && defined(__GNUC__) - - unsigned short word = *(unsigned short *)x; - __asm__ ("xchgb %b0,%h0" : "=q" (word) : "0" (word)); - return word; - -#elif defined(WORDS_BIGENDIAN) - /* It is safe to do this on big endian hosts, since the d10v requires that words be - aligned on 16-bit boundaries. */ - return *(uint16 *)x; - -#else - return ((uint16)x[0]<<8) + x[1]; -#endif -} - -ENDIAN_INLINE uint32 -get_longword (x) - uint8 *x; -{ -#if (defined(__i486__) || defined(__i586__) || defined(__i686__)) && defined(__GNUC__) && defined(USE_BSWAP) - - unsigned int long_word = *(unsigned *)x; - __asm__ ("bswap %0" : "=r" (long_word) : "0" (long_word)); - return long_word; - -#elif (defined(__i386__) || defined(__i486__) || defined(__i586__) || defined(__i686__)) && defined(__GNUC__) - - unsigned int long_word = *(unsigned *)x; - __asm__("xchgb %b0,%h0\n\t" /* swap lower bytes */ - "rorl $16,%0\n\t" /* swap words */ - "xchgb %b0,%h0" /* swap higher bytes */ - :"=q" (long_word) - : "0" (long_word)); - - return long_word; - -#elif (defined(_POWER) && defined(_AIX)) || (defined(__PPC__) && defined(__BIG_ENDIAN__)) - /* Power & PowerPC computers in big endian mode can handle unaligned loads&stores */ - return *(uint32 *)x; - -#elif defined(WORDS_BIGENDIAN) - /* long words must be aligned on at least 16-bit boundaries, so this should be safe. */ - return (((uint32) *(uint16 *)x)<<16) | ((uint32) *(uint16 *)(x+2)); - -#else - return ((uint32)x[0]<<24) + ((uint32)x[1]<<16) + ((uint32)x[2]<<8) + ((uint32)x[3]); -#endif -} - -ENDIAN_INLINE int64 -get_longlong (x) - uint8 *x; -{ - uint32 top = get_longword (x); - uint32 bottom = get_longword (x+4); - return (((int64)top)<<32) | (int64)bottom; -} - -ENDIAN_INLINE void -write_word (addr, data) - uint8 *addr; - uint16 data; -{ -#if (defined(__i386__) || defined(__i486__) || defined(__i586__) || defined(__i686__)) && defined(__GNUC__) - - __asm__ ("xchgb %b0,%h0" : "=q" (data) : "0" (data)); - *(uint16 *)addr = data; - -#elif defined(WORDS_BIGENDIAN) - /* It is safe to do this on big endian hosts, since the d10v requires that words be - aligned on 16-bit boundaries. */ - *(uint16 *)addr = data; - -#else - addr[0] = (data >> 8) & 0xff; - addr[1] = data & 0xff; -#endif -} - -ENDIAN_INLINE void -write_longword (addr, data) - uint8 *addr; - uint32 data; -{ -#if (defined(__i486__) || defined(__i586__) || defined(__i686__)) && defined(__GNUC__) && defined(USE_BSWAP) - - __asm__ ("bswap %0" : "=r" (data) : "0" (data)); - *(uint32 *)addr = data; - -#elif (defined(__i386__) || defined(__i486__) || defined(__i586__) || defined(__i686__)) && defined(__GNUC__) - - __asm__("xchgb %b0,%h0\n\t" /* swap lower bytes */ - "rorl $16,%0\n\t" /* swap words */ - "xchgb %b0,%h0" /* swap higher bytes */ - :"=q" (data) - : "0" (data)); - - *(uint32 *)addr = data; - -#elif (defined(_POWER) && defined(_AIX)) || (defined(__PPC__) && defined(__BIG_ENDIAN__)) - /* Power & PowerPC computers in big endian mode can handle unaligned loads&stores */ - *(uint32 *)addr = data; - -#elif defined(WORDS_BIGENDIAN) - *(uint16 *)addr = (uint16)(data >> 16); - *(uint16 *)(addr + 2) = (uint16)data; - -#else - addr[0] = (data >> 24) & 0xff; - addr[1] = (data >> 16) & 0xff; - addr[2] = (data >> 8) & 0xff; - addr[3] = data & 0xff; -#endif -} - -ENDIAN_INLINE void -write_longlong (addr, data) - uint8 *addr; - int64 data; -{ - write_longword (addr, (uint32)(data >> 32)); - write_longword (addr+4, (uint32)data); -} |