1#ifndef COMMON_H
 2#define COMMON_H
 3
 4#include <ctype.h>
 5#include <fcntl.h>
 6#include <limits.h>
 7#include <math.h>
 8#include <stdarg.h>
 9#include <stdbool.h>
10#include <stddef.h>
11#include <stdint.h>
12#include <stdio.h>
13#include <stdlib.h>
14#include <string.h>
15#include <unistd.h>
16
17#define UNUSED(V) (void)(V)
18
19#if defined(__PPC__) || defined(__POWERPC__)
20#define LOAD_32(DEST, ADDR, ARR) { \
21	uint32_t _tmp = (ADDR); \
22	asm("lwbrx %0, %1, %2" : "=r"(DEST) : "r"(_tmp), "p"(ARR)); \
23}
24
25#define LOAD_16(DEST, ADDR, ARR) { \
26	uint32_t _tmp = (ADDR); \
27	asm("lhbrx %0, %1, %2" : "=r"(DEST) : "r"(_tmp), "p"(ARR)); \
28}
29
30#define STORE_32(SRC, ADDR, ARR) { \
31	uint32_t _tmp = (ADDR); \
32	asm("stwbrx %0, %1, %2" : : "r"(SRC), "r"(_tmp), "p"(ARR)); \
33}
34
35#define STORE_16(SRC, ADDR, ARR) { \
36	uint32_t _tmp = (ADDR); \
37	asm("sthbrx %0, %1, %2" : : "r"(SRC), "r"(_tmp), "p"(ARR)); \
38}
39#else
40#define LOAD_32(DEST, ADDR, ARR) DEST = ((uint32_t*) ARR)[(ADDR) >> 2]
41#define LOAD_16(DEST, ADDR, ARR) DEST = ((uint16_t*) ARR)[(ADDR) >> 1]
42#define STORE_32(SRC, ADDR, ARR) ((uint32_t*) ARR)[(ADDR) >> 2] = SRC
43#define STORE_16(SRC, ADDR, ARR) ((uint16_t*) ARR)[(ADDR) >> 1] = SRC
44#endif
45
46#define MAKE_MASK(START, END) (((1 << ((END) - (START))) - 1) << (START))
47#define CHECK_BITS(SRC, START, END) ((SRC) & MAKE_MASK(START, END))
48#define EXT_BITS(SRC, START, END) (((SRC) >> (START)) & ((1 << ((END) - (START))) - 1))
49#define INS_BITS(SRC, START, END, BITS) (CLEAR_BITS(SRC, START, END) | (((BITS) << (START)) & MAKE_MASK(START, END)))
50#define CLEAR_BITS(SRC, START, END) ((SRC) & ~MAKE_MASK(START, END))
51#define FILL_BITS(SRC, START, END) ((SRC) | MAKE_MASK(START, END))
52
53#define DECL_BITFIELD(NAME, TYPE) typedef TYPE NAME
54
55#define DECL_BITS(TYPE, FIELD, START, SIZE) \
56	static inline TYPE TYPE ## Is ## FIELD (TYPE src) { \
57		return CHECK_BITS(src, (START), (START) + (SIZE)); \
58	} \
59	static inline TYPE TYPE ## Get ## FIELD (TYPE src) { \
60		return EXT_BITS(src, (START), (START) + (SIZE)); \
61	} \
62	static inline TYPE TYPE ## Clear ## FIELD (TYPE src) { \
63		return CLEAR_BITS(src, (START), (START) + (SIZE)); \
64	} \
65	static inline TYPE TYPE ## Fill ## FIELD (TYPE src) { \
66		return FILL_BITS(src, (START), (START) + (SIZE)); \
67	} \
68	static inline TYPE TYPE ## Set ## FIELD (TYPE src, TYPE bits) { \
69		return INS_BITS(src, (START), (START) + (SIZE), bits); \
70	}
71
72#define DECL_BIT(TYPE, FIELD, BIT) DECL_BITS(TYPE, FIELD, BIT, 1)
73#endif