Panasonic FP Series Programming Manual page 499

Arithmetic instructions
In Step 1 the F99 function is activated, shifting in the value given in the variable ShiftinData at s,
LD
i.e. 31, and compressing the rest of the data.
In Step 2 the F98 function is activated, and the value defined in the variable at d3, i.e. 11, is shifted
out.
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