Special Instructions
    The special instructions perform application-specific operations.
Available Instructions
If you want to:  | Use this instruction:  | 
|---|---|
Compare data against a known, good reference and record any mismatches.  | |
Compare data against a known, good reference, record any mismatches, and update the reference to match the source.  | |
Pass the source data through a mask and compare the result to reference data. Then write the source into the reference for the next comparison.  | |
Control a PID loop.  | 
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