u8 bits_mirror_u8(u8 data)
{u8 result;
result = 0;
if (data & 0x01) result = 0x80;
if (data & 0x02) result |= 0x40;
if (data & 0x04) result |= 0x20;
if (data & 0x08) result |= 0x10;
if (data & 0x10) result |= 0x08;
if (data & 0x20) result |= 0x04;
if (data & 0x40) result |= 0x02;
if (data & 0x80) result |= 0x01;
return(result);
}



char table[16]={0,8,4,12,2,10,6,14,1,9,5,13,3,11,7,15};

t = (table[t & 0x0F]<<4)|table[(t>>4) & 0x0F];




for (i=out_byte=0; i<8; i++) out_byte = (out_byte << 1) | ((in_byte >> i) & 1);