Subtracts one BCD value from another.
FMTBcd
BcdSubtract subtracts bcdIn2 from bcdIn1 and returns the result as bcdOut.
The return value is given a precision and number of decimal places that is sufficient to accurately represent the result of the subtraction. You can convert this to a specific precision and number of decimal places using the NormalizeBcd procedure.
BcdMultiply
BcdDivide
BcdAdd
NormalizeBcd
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