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 /* This must come before any other includes.  */
   5 #include "defs.h"
   6
   7 #ifndef ENDIAN_INLINE
   8 #define NO_ENDIAN_INLINE
   9 #include "sim-main.h"
  10 #define ENDIAN_INLINE
  11 #endif
  12
  13 ENDIAN_INLINE uint16
  14 get_word (uint8 *x)
  15 {
  16   return ((uint16)x[0]<<8) + x[1];
  17 }
  18
  19 ENDIAN_INLINE uint32
  20 get_longword (uint8 *x)
  21 {
  22   return ((uint32)x[0]<<24) + ((uint32)x[1]<<16) + ((uint32)x[2]<<8) + ((uint32)x[3]);
  23 }
  24
  25 ENDIAN_INLINE int64
  26 get_longlong (uint8 *x)
  27 {
  28   uint32 top = get_longword (x);
  29   uint32 bottom = get_longword (x+4);
  30   return (((int64)top)<<32) | (int64)bottom;
  31 }
  32
  33 ENDIAN_INLINE void
  34 write_word (uint8 *addr, uint16 data)
  35 {
  36   addr[0] = (data >> 8) & 0xff;
  37   addr[1] = data & 0xff;
  38 }
  39
  40 ENDIAN_INLINE void
  41 write_longword (uint8 *addr, uint32 data)
  42 {
  43   addr[0] = (data >> 24) & 0xff;
  44   addr[1] = (data >> 16) & 0xff;
  45   addr[2] = (data >> 8) & 0xff;
  46   addr[3] = data & 0xff;
  47 }
  48
  49 ENDIAN_INLINE void
  50 write_longlong (uint8 *addr, int64 data)
  51 {
  52   write_longword (addr, (uint32)(data >> 32));
  53   write_longword (addr+4, (uint32)data);
  54 }