SLAU723A October 2017 – October 2018 MSP432E401Y , MSP432E411Y
The FPU provides an extension register file containing 32 single-precision registers. These can be viewed as:
The mapping between the registers is as follows:
For example, you can access the least significant half of the value in D6 by accessing S12, and the most significant half of the elements by accessing S13.