xref: /netbsd-src/external/gpl3/gdb.old/dist/sim/d10v/endian.c (revision 8b657b0747480f8989760d71343d6dd33f8d4cf9)
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_t
14 get_word (const uint8_t *x)
15 {
16   return ((uint16_t)x[0]<<8) + x[1];
17 }
18 
19 ENDIAN_INLINE uint32_t
20 get_longword (const uint8_t *x)
21 {
22   return ((uint32_t)x[0]<<24) + ((uint32_t)x[1]<<16) + ((uint32_t)x[2]<<8) + ((uint32_t)x[3]);
23 }
24 
25 ENDIAN_INLINE int64_t
26 get_longlong (const uint8_t *x)
27 {
28   uint32_t top = get_longword (x);
29   uint32_t bottom = get_longword (x+4);
30   return (((int64_t)top)<<32) | (int64_t)bottom;
31 }
32 
33 ENDIAN_INLINE void
34 write_word (uint8_t *addr, uint16_t data)
35 {
36   addr[0] = (data >> 8) & 0xff;
37   addr[1] = data & 0xff;
38 }
39 
40 ENDIAN_INLINE void
41 write_longword (uint8_t *addr, uint32_t 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_t *addr, int64_t data)
51 {
52   write_longword (addr, (uint32_t)(data >> 32));
53   write_longword (addr+4, (uint32_t)data);
54 }
55