Bugs 3 mini

void rxid2txid(uint8_t rxid_high, uint8_t rxid_low)
{
	uint8_t start, length, index;
	static const uint16_t end[]={
		0x2d9e, 0x95a4, 0x9c5c, 0xb4a6, 0xa9ce, 0x562b, 0x3e73, 0xb895, 0x6a82, 0x9437, 0x3d5a,
		0x4bb2, 0x6949, 0xc224, 0x6b3d, 0x23c6, 0x9ea3, 0xa498, 0x5c9e, 0xa652, 0xce76, 0x2b4b, 0x733a };
	if(rxid_high==0x00 || rxid_high==0xFF)
		rx_tx_addr[0]=0x52;
	else
		rx_tx_addr[0]=rxid_high;
	rx_tx_addr[1]=0x3d;
	if(rxid_low==0x00 || rxid_low==0xFF)
		rx_tx_addr[2]=0x66;
	else
		rx_tx_addr[2]=rxid_low;
	for(uint8_t end_idx=0;end_idx<23;end_idx++)
	{
		//calculate sequence start
		if(end_idx<=7)
			start=end_idx;
		else
			start=(end_idx-7)*16+7;
		//calculate sequence length
		if(end_idx>6)
		{
			if(end_idx>15)
				length=(23-end_idx)<<1;
			else
				length=16;
		}
		else
			length=(end_idx+1)<<1;
		//scan for a possible solution using the current end
		for(uint8_t i=0;i<length;i++)
		{
			index=(i>>1)*7+(((i+1)>>1)<<3);
			index=start+index-rxid_high;
			if(index==rxid_low)
			{ //solution found
				rx_tx_addr[3]=end[end_idx]>>8;
				rx_tx_addr[4]=end[end_idx];
				return;
			}
		}
	}
	// Something bad happened if we arrive here....
}