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<h4 class="subsection">9.15.13 AMD's Trailing Bit Manipulation Instructions</h4>
<p><a name="index-TBM_002c-i386-1145"></a><a name="index-TBM_002c-x86_002d64-1146"></a>
<code>as</code> supports AMD's Trailing Bit Manipulation (TBM)
instruction set, available on AMD's BDVER2 processors (Trinity and
Viperfish).
<p>TBM instructions provide instructions implementing individual bit
manipulation operations such as isolating, masking, setting, resetting,
complementing, and operations on trailing zeros and ones.
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