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 #include "d10v-sim.h"
  14
  15 ENDIAN_INLINE uint16_t
  16 get_word (const uint8_t *x)
  17 {
  18   return ((uint16_t)x[0]<<8) + x[1];
  19 }
  20
  21 ENDIAN_INLINE uint32_t
  22 get_longword (const uint8_t *x)
  23 {
  24   return ((uint32_t)x[0]<<24) + ((uint32_t)x[1]<<16) + ((uint32_t)x[2]<<8) + ((uint32_t)x[3]);
  25 }
  26
  27 ENDIAN_INLINE int64_t
  28 get_longlong (const uint8_t *x)
  29 {
  30   uint32_t top = get_longword (x);
  31   uint32_t bottom = get_longword (x+4);
  32   return (((int64_t)top)<<32) | (int64_t)bottom;
  33 }
  34
  35 ENDIAN_INLINE void
  36 write_word (uint8_t *addr, uint16_t data)
  37 {
  38   addr[0] = (data >> 8) & 0xff;
  39   addr[1] = data & 0xff;
  40 }
  41
  42 ENDIAN_INLINE void
  43 write_longword (uint8_t *addr, uint32_t data)
  44 {
  45   addr[0] = (data >> 24) & 0xff;
  46   addr[1] = (data >> 16) & 0xff;
  47   addr[2] = (data >> 8) & 0xff;
  48   addr[3] = data & 0xff;
  49 }
  50
  51 ENDIAN_INLINE void
  52 write_longlong (uint8_t *addr, int64_t data)
  53 {
  54   write_longword (addr, (uint32_t)(data >> 32));
  55   write_longword (addr+4, (uint32_t)data);
  56 }