On Thu, Jan 26, 2006 at 08:55:41AM +0000, Russell King wrote:
Unfortunately that's not correct. You do not appear to have checked
the compiler output like I did - this code does _not_ generate
constant shifts.
Russell,
By "written stupidly", I thought Richard meant they could have
used constants instead of "s". e.g.:
if (word << 16 == 0) { b += 16; word >>= 16); }
if (word << 24 == 0) { b += 8; word >>= 8); }
if (word << 28 == 0) { b += 4; word >>= 4); }
But I prefer what Edgar Toernig suggested.
grant