44 lines
961 B
C
44 lines
961 B
C
#ifndef defs_h
|
|
#define defs_h
|
|
|
|
#ifdef GB_INTERNAL
|
|
|
|
// "Keyword" definitions
|
|
#define likely(x) __builtin_expect((x), 1)
|
|
#define unlikely(x) __builtin_expect((x), 0)
|
|
|
|
#define internal __attribute__((visibility("internal")))
|
|
|
|
#if __clang__
|
|
#define unrolled _Pragma("unroll")
|
|
#elif __GNUC__ >= 8
|
|
#define unrolled _Pragma("GCC unroll 8")
|
|
#else
|
|
#define unrolled
|
|
#endif
|
|
|
|
#ifdef GB_BIG_ENDIAN
|
|
#define LE16(x) __builtin_bswap16(x)
|
|
#define LE32(x) __builtin_bswap32(x)
|
|
#define LE64(x) __builtin_bswap64(x)
|
|
#define BE16(x) (x)
|
|
#define BE32(x) (x)
|
|
#define BE64(x) (x)
|
|
#else
|
|
#define LE16(x) (x)
|
|
#define LE32(x) (x)
|
|
#define LE64(x) (x)
|
|
#define BE16(x) __builtin_bswap16(x)
|
|
#define BE32(x) __builtin_bswap32(x)
|
|
#define BE64(x) __builtin_bswap64(x)
|
|
#endif
|
|
#endif
|
|
|
|
#if __GNUC__ < 4 || (__GNUC__ == 4 && __GNUC_MINOR__ < 8)
|
|
#define __builtin_bswap16(x) ({ typeof(x) _x = (x); _x >> 8 | _x << 8; })
|
|
#endif
|
|
|
|
struct GB_gameboy_s;
|
|
typedef struct GB_gameboy_s GB_gameboy_t;
|
|
#endif
|