Multiplication Rounding

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Now, this is Q4.4. I need Q2.2. You can't represent 14 with two bits. So there will be some wrap around. That is why I need rounding. Essentially, the desired product would be some smaller wrap around number, and a fractional portion of two bits.

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It's unclear, what you want to achieve.

As a first point, the term rounding isn't commonly used for the handling of overflow problems. Basically there are two options:

- omit/cut the high bits, which causes wrap around, in case of signed numbers often resulting in a wrong sign

- apply saturation logic, limiting the output to the highest respectively lowest value that can be represented in the number system. This technique is mostly applied in digital signal processing