diff options
Diffstat (limited to 'sim')
| -rw-r--r-- | sim/d10v/ChangeLog | 5 | ||||
| -rw-r--r-- | sim/d10v/endian.c | 77 |
2 files changed, 5 insertions, 77 deletions
diff --git a/sim/d10v/ChangeLog b/sim/d10v/ChangeLog index 5c647bf..7d639fd 100644 --- a/sim/d10v/ChangeLog +++ b/sim/d10v/ChangeLog @@ -1,3 +1,8 @@ +2016-01-04 Mike Frysinger <vapier@gentoo.org> + + * endian.c (get_word): Delete all arch/big endian logic. + (get_longword, write_word, write_longword): Likewise. + 2016-01-03 Mike Frysinger <vapier@gentoo.org> * interp.c (sim_open): Update sim_parse_args comment. diff --git a/sim/d10v/endian.c b/sim/d10v/endian.c index 8d85bcb..dbc3db2 100644 --- a/sim/d10v/endian.c +++ b/sim/d10v/endian.c @@ -10,53 +10,13 @@ ENDIAN_INLINE uint16 get_word (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 (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 @@ -70,54 +30,17 @@ get_longlong (uint8 *x) ENDIAN_INLINE void write_word (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 (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 |