Important: The information in this document is obsolete and should not be used for new development.
FractMultiplyYou can use the
FractMultiplyfunction to calculate the product of two numbers.
fract FractMultiply (fract multiplicand, fract multiplier);
- The number to be multiplied by the multiplier.
The number by which the multiplicand is to multiplied.
- function result
- The product of two numbers.
FractMultiplyfunction calculates the product of two numbers, specified in the
multiplierparameters. If the parameters are a and b, the product a b is returned.
The format of the number returned depends on the respective number formats of the
multiplierparameters. The operation has a bias of 30 bits; in general, the bias of the resulting number is the sum of the biases of the input numbers, shifted right by 30 bits. Thus if either the
fract, then the result is the same fixed-point format as the other argument.
Table 8-5 shows the bias of the FractMultiply result. The dashed line indicates that the resulting bias is not equivalent to long, fixed, or fract. Use the rules of the operation to determine it
long fixed fract long --- --- long fixed --- --- fixed fract long fixed fract
FractMultiplydoes not pin its result in the case of an overflow; the result returned is modulo 4.