3.1.2. Multiplier Adder Sum Mode
The multiplier adder sum mode uses the equations:
- resulta = (bx * by) + (ax * ay) to calculate the sum of the two 18 x 19 multiplications.
- resulta = (bx * by) - (ax * ay) to calculate the difference of the two 18 x 19 multiplications.
In this figure, the variable is defined as follows:
- n = 19 for 18 × 19 signed operands
- n = 18 for 18 × 18 unsigned operands
Set the SUB dynamic control signal to high to calculate the difference of the two 18 × 19 multiplications.
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