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CCS/MSP430F67791A: More time with 64bit/64bit in CCS

Part Number: MSP430F67791A
Other Parts Discussed in Thread: MSP430F67791,

Tool/software: Code Composer Studio

Hello team ,

One of my custoemrs is using CCS ver7.2 with MSP430F67791 and reported below issue.. Please confirm what is the root cause and is it solved in Latest version of CCS?

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we are developing is a Multi function meter with 0.2 Class accuracy and 31 St Harmonics THD. We have considered MSP430F67791A for this application.  

Now coming back to one small issue that we are facing during division of 64 bit / 64 bit is that it is taking around 800 uSec where as 32 bit by 32 bit division is 22 uSec. We are also using hardware multiplier for the same. Is there any additional setting that we are missing because on IAR compiler the same division takes around 280 uSec instead of 800 uSec.

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Regards,

Vikas Chola