libutils/source/utils/utils.h
2017-10-29 09:24:06 +01:00

47 lines
1.8 KiB
C

#ifndef __UTILS_H_
#define __UTILS_H_
#include <malloc.h>
#ifdef __cplusplus
extern "C" {
#endif
#define FlushBlock(addr) asm volatile("dcbf %0, %1\n" \
"icbi %0, %1\n" \
"sync\n" \
"eieio\n" \
"isync\n" \
: \
:"r"(0), "r"(((addr) & ~31)) \
:"memory", "ctr", "lr", "3", "4", "5", "6", "7", "8", "9", "10", "11", "12" \
);
#define LIMIT(x, min, max) \
({ \
typeof( x ) _x = x; \
typeof( min ) _min = min; \
typeof( max ) _max = max; \
( ( ( _x ) < ( _min ) ) ? ( _min ) : ( ( _x ) > ( _max ) ) ? ( _max) : ( _x ) ); \
})
#define DegToRad(a) ( (a) * 0.01745329252f )
#define RadToDeg(a) ( (a) * 57.29577951f )
#define ALIGN4(x) (((x) + 3) & ~3)
#define ALIGN32(x) (((x) + 31) & ~31)
// those work only in powers of 2
#define ROUNDDOWN(val, align) ((val) & ~(align-1))
#define ROUNDUP(val, align) ROUNDDOWN(((val) + (align-1)), align)
#define le16(i) ((((u16) ((i) & 0xFF)) << 8) | ((u16) (((i) & 0xFF00) >> 8)))
#define le32(i) ((((u32)le16((i) & 0xFFFF)) << 16) | ((u32)le16(((i) & 0xFFFF0000) >> 16)))
#define le64(i) ((((u64)le32((i) & 0xFFFFFFFFLL)) << 32) | ((u64)le32(((i) & 0xFFFFFFFF00000000LL) >> 32)))
#ifdef __cplusplus
}
#endif
#endif // __UTILS_H_