slowswap()

FASTLED_FORCE_INLINE void slowswap	(	unsigned char *	A,
		unsigned char *	B )

Slow version of the 8 byte by 8 bit rotation.

Definition at line 162 of file bitswap.h.

                                                                       {
 
  for(int row = 0; row < 7; ++row) {
    uint8_t x = A[row];
 
    uint8_t bit = (1<<row);
    unsigned char *p = B;
    for(uint32_t mask = 1<<7 ; mask ; mask >>= 1) {
      if(x & mask) {
        *p++ |= bit;
      } else {
        *p++ &= ~bit;
      }
    }
    // B[7] |= (x & 0x01) << row; x >>= 1;
    // B[6] |= (x & 0x01) << row; x >>= 1;
    // B[5] |= (x & 0x01) << row; x >>= 1;
    // B[4] |= (x & 0x01) << row; x >>= 1;
    // B[3] |= (x & 0x01) << row; x >>= 1;
    // B[2] |= (x & 0x01) << row; x >>= 1;
    // B[1] |= (x & 0x01) << row; x >>= 1;
    // B[0] |= (x & 0x01) << row; x >>= 1;
  }
}

References FASTLED_FORCE_INLINE, p, and x.