p>See also: <strong>Bit(BitBase, BitOffset)</strong> on page 3-11.</p>
<p>Some assemblers support immediate bit offsets larger than 31 by using the immediate bit offset field in combination with the displacement field of the memory operand. See “BT—Bit Test” in this chapter for more information on this addressing mechanism.</p>
<p>This instruction can be used with a LOCK prefix to allow the instruction to be executed atomically.</p>
<p>In 64-bit mode, the instruction’s default operation size is 32 b