> And actually, the same applies on BE, but the other way around. So we > should mark __xl as an output register as well, as __xl will assume > the right value depending on the endianness.
Why not use "+r" to indicate than an 'output' parameter is also used as an input. Rather cleaner than specifying the same C variable as both input and output. David - Registered Address Lakeside, Bramley Road, Mount Farm, Milton Keynes, MK1 1PT, UK Registration No: 1397386 (Wales)