STEP 5 Operations S5-115F Manual
ExplanationSTL
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L IW 71
L IW 5
XOW
T QW 86
Load input word IW 71 into ACCUM 1.
Load input word IW 5 into ACCUM 1. The previous contents of ACCUM 1
are shifted to ACCUM 2.
Combine the contents of both accumulators bit by bit through
EXCLUSIVE OR.
Transfer the result (contents of ACCUM 1) to output word QW 86.
Numeric Example
Check to see if input words IW 71
and IW 5 are equal. The result bit is
set to ”1” only if corresponding bits
in ACCUM 1 and ACCUM 2 are
unequal.
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X-OR
Result
1 0 0 1 1 0 0 1 1 1 0 0 0 1 1 0
15 0
1 0 0 0 0 0 1 0 1 0 1 0 1 0 1 0
0 0 0 1 1 0 1 1 0 1 1 0 1 1 0 0
IW 5
ACCUM 2
ACCUM 1
ACCUM 1
IW 71
3-48
EWA 4NEB 811 6149-02
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