binary.h

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/**************************************************************************/
/**************************************************************************/

#ifndef _TUSB_BINARY_H_
#define _TUSB_BINARY_H_

#ifdef __cplusplus
 extern "C" {
#endif

#include "primitive_types.h"
#include "compiler/compiler.h"

//------------- Bit manipulation -------------//
#define BIT_(n) (1U << (n))                                
#define BIT_SET_(x, n) ( (x) | BIT_(n) )                   
#define BIT_CLR_(x, n) ( (x) & (~BIT_(n)) )                
#define BIT_TEST_(x, n) ( ((x) & BIT_(n)) ? true : false ) 

static inline uint32_t bit_set(uint32_t value, uint8_t n) ATTR_CONST ATTR_ALWAYS_INLINE;
static inline uint32_t bit_set(uint32_t value, uint8_t n)
{
  return value | BIT_(n);
}

static inline uint32_t bit_clear(uint32_t value, uint8_t n) ATTR_CONST ATTR_ALWAYS_INLINE;
static inline uint32_t bit_clear(uint32_t value, uint8_t n)
{
  return value & (~BIT_(n));
}

static inline bool bit_test(uint32_t value, uint8_t n) ATTR_CONST ATTR_ALWAYS_INLINE;
static inline bool bit_test(uint32_t value, uint8_t n)
{
  return (value & BIT_(n)) ? true : false;
}

static inline uint32_t bit_mask(uint8_t n) ATTR_CONST ATTR_ALWAYS_INLINE;
static inline uint32_t bit_mask(uint8_t n)
{
  return (n < 32) ? ( BIT_(n) - 1 ) : UINT32_MAX;
}

static inline uint32_t bit_mask_range(uint8_t start, uint32_t end) ATTR_CONST ATTR_ALWAYS_INLINE;
static inline uint32_t bit_mask_range(uint8_t start, uint32_t end)
{
  return bit_mask(end+1) & ~ bit_mask(start);
}

static inline uint32_t bit_set_range(uint32_t value, uint8_t start, uint8_t end, uint32_t pattern) ATTR_CONST ATTR_ALWAYS_INLINE;
static inline uint32_t bit_set_range(uint32_t value, uint8_t start, uint8_t end, uint32_t pattern)
{
   return ( value & ~bit_mask_range(start, end) ) | (pattern << start);
}


//------------- Binary Constant -------------//
#if defined(__GNUC__) && !defined(__CC_ARM)

#define BIN8(x)               ((uint8_t)  (0b##x))
#define BIN16(b1, b2)         ((uint16_t) (0b##b1##b2))
#define BIN32(b1, b2, b3, b4) ((uint32_t) (0b##b1##b2##b3##b4))

#else

//  internal macro of B8, B16, B32
#define _B8__(x) (((x&0x0000000FUL)?1:0) \
                +((x&0x000000F0UL)?2:0) \
                +((x&0x00000F00UL)?4:0) \
                +((x&0x0000F000UL)?8:0) \
                +((x&0x000F0000UL)?16:0) \
                +((x&0x00F00000UL)?32:0) \
                +((x&0x0F000000UL)?64:0) \
                +((x&0xF0000000UL)?128:0))

#define BIN8(d) ((uint8_t) _B8__(0x##d##UL))
#define BIN16(dmsb,dlsb) (((uint16_t)BIN8(dmsb)<<8) + BIN8(dlsb))
#define BIN32(dmsb,db2,db3,dlsb) \
            (((uint32_t)BIN8(dmsb)<<24) \
            + ((uint32_t)BIN8(db2)<<16) \
            + ((uint32_t)BIN8(db3)<<8) \
            + BIN8(dlsb))
#endif

#ifdef __cplusplus
}
#endif

#endif /* _TUSB_BINARY_H_ */