SUBTRACT n1 FROM n2.
Subtracts the contents of n1 from the contents of
n2 and stores the result in n2 .
This is equivalent to: n2 = n2 - n1.
DATA NUMBER TYPE P VALUE 3,
RESULT TYPE I VALUE 7.
SUBTRACT NUMBER FROM RESULT.
The field RESULT now contains 4; the value of NUMBER
remains unchanged at 3.
The remarks about conversions and performance under
COMPUTE apply equally to
The runtime required to subtract two numbers of type I or F is approx.
2 msn (standardized microseconds). For
numbers of type P, about 9 msn are needed.
BCD_BADDATA : P field contains no correct BCD
BCD_FIELD_OVERFLOW : Result field is too small (type P )
BCD_OVERFLOW : Overflow with arithmetic operation (type
COMPUTE_INT_MINUS_OVERFLOW : Whole number overflow during
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