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<th width="60%" align="center">Part II. Opcodes Overview</th>
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The opcodes to start and stop internal clocks are:
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<em class="citetitle">clockoff</em>
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<em class="citetitle">clockon</em>
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These clocks count CPU time. There are 32 independent clocks available. You can use the opcode <a class="link" href="readclock.html" title="readclock"><em class="citetitle">readclock</em></a> to read current values of a clock. See <a class="link" href="ControlTimeread.html" title="Time Reading"><em class="citetitle">Time Reading</em></a> for other timing opcodes.
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