sim/d10v/endian.c

   1 /* If we're being compiled as a .c file, rather than being included in
   2    d10v_sim.h, then ENDIAN_INLINE won't be defined yet.  */
   3
   4 #ifndef ENDIAN_INLINE
   5 #define NO_ENDIAN_INLINE
   6 #include "sim-main.h"
   7 #define ENDIAN_INLINE
   8 #endif
   9
  10 ENDIAN_INLINE uint16
  11 get_word (uint8 *x)
  12 {
  13   return ((uint16)x[0]<<8) + x[1];
  14 }
  15
  16 ENDIAN_INLINE uint32
  17 get_longword (uint8 *x)
  18 {
  19   return ((uint32)x[0]<<24) + ((uint32)x[1]<<16) + ((uint32)x[2]<<8) + ((uint32)x[3]);
  20 }
  21
  22 ENDIAN_INLINE int64
  23 get_longlong (uint8 *x)
  24 {
  25   uint32 top = get_longword (x);
  26   uint32 bottom = get_longword (x+4);
  27   return (((int64)top)<<32) | (int64)bottom;
  28 }
  29
  30 ENDIAN_INLINE void
  31 write_word (uint8 *addr, uint16 data)
  32 {
  33   addr[0] = (data >> 8) & 0xff;
  34   addr[1] = data & 0xff;
  35 }
  36
  37 ENDIAN_INLINE void
  38 write_longword (uint8 *addr, uint32 data)
  39 {
  40   addr[0] = (data >> 24) & 0xff;
  41   addr[1] = (data >> 16) & 0xff;
  42   addr[2] = (data >> 8) & 0xff;
  43   addr[3] = data & 0xff;
  44 }
  45
  46 ENDIAN_INLINE void
  47 write_longlong (uint8 *addr, int64 data)
  48 {
  49   write_longword (addr, (uint32)(data >> 32));
  50   write_longword (addr+4, (uint32)data);
  51 }