#S33
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Symphony gives you the power to conserve Analysis memory with
the MASK
and UNMSK commands. These functions are defined in the Program field of
the Vectors window. Clearly, you must be operating in the
Programmed
rather than Sequential mode as shown to the upper right. In the Vectors window shown to the right we see a pattern
generator
program defined to repeat vector 7 four times (the LOAD value plus
one).
Your actual program may have a LOAD value of hundreds or thousands, or
you might use the CJMP instruction to loop through a series of vectors
many times. But the MASK feature works the same in any instance.
Executing our vectors by clicking the RUN button or by
pressing the
button on the TestBox will yield a capture in the Analysis window
similar
to the example at the right. Note the four captures of vector 7.
To use the MASK function, go back to the Vectors window and
place the
text cursor in the Program field. Enter the command “MASK”
at the vector preceding the LOAD instruction. Also enter an UNMSK
command at the vector immediately following the LOOP. See the
example
to the right.
A view of the Analysis window after again clicking RUN shows us that the MASKed vector ranges are excluded from the capture, as shown to the right. This not only conserves Analysis memory, but can make viewing and managing your test results easier by excluding redundant “uninteresting” vectors from the capture.
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     Also See: Q'nApp #S7: Pattern Generator Looping
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