sim/d10v/endian.c

   1 #ifndef ENDIAN_INLINE
   2 #define NO_ENDIAN_INLINE
   3 #include "d10v_sim.h"
   4 #define ENDIAN_INLINE
   5 #endif
   6
   7 ENDIAN_INLINE uint32
   8 get_longword (x)
   9       uint8 *x;
  10 {
  11   return ((uint32)x[0]<<24) + ((uint32)x[1]<<16) + ((uint32)x[2]<<8) + ((uint32)x[3]);
  12 }
  13
  14 ENDIAN_INLINE int64
  15 get_longlong (x)
  16       uint8 *x;
  17 {
  18   uint32 top = ((uint32)x[0]<<24) + ((uint32)x[1]<<16) + ((uint32)x[2]<<8) + ((uint32)x[3]);
  19   uint32 bottom = ((uint32)x[4]<<24) + ((uint32)x[5]<<16) + ((uint32)x[6]<<8) + ((uint32)x[7]);
  20   return (((int64)top)<<32) | (int64)bottom;
  21 }
  22
  23 ENDIAN_INLINE uint16
  24 get_word (x)
  25       uint8 *x;
  26 {
  27   return ((uint16)x[0]<<8) + x[1];
  28 }
  29
  30 ENDIAN_INLINE void
  31 write_word (addr, data)
  32      uint8 *addr;
  33      uint16 data;
  34 {
  35   addr[0] = (data >> 8) & 0xff;
  36   addr[1] = data & 0xff;
  37 }
  38
  39 ENDIAN_INLINE void
  40 write_longword (addr, data)
  41      uint8 *addr;
  42      uint32 data;
  43 {
  44   addr[0] = (data >> 24) & 0xff;
  45   addr[1] = (data >> 16) & 0xff;
  46   addr[2] = (data >> 8) & 0xff;
  47   addr[3] = data & 0xff;
  48 }
  49
  50 ENDIAN_INLINE void
  51 write_longlong (addr, data)
  52      uint8 *addr;
  53      int64 data;
  54 {
  55   addr[0] = data >> 56;
  56   addr[1] = (data >> 48) & 0xff;
  57   addr[2] = (data >> 40) & 0xff;
  58   addr[3] = (data >> 32) & 0xff;
  59   addr[4] = (data >> 24) & 0xff;
  60   addr[5] = (data >> 16) & 0xff;
  61   addr[6] = (data >> 8) & 0xff;
  62   addr[7] = data & 0xff;
  63 }