CCS/MSP430FR2311: how to read core registers in C

Kent Deines

Tool/software: Code Composer Studio

Is there a way to read core registers, for instance, R12 in C? I have a function that needs both the quotient and the reminder of a pair of values. To get both the code must do both a \ and a % operation. Both make calls to same divide routine, __mspabi_divi , but they return only one appropriate value for the needed result, either R12 for the quotient or R14 for the remainder. The other result is available the other register when the function is divide is finished. It would be great to grab the value the register without having to redo the divide.

Any ideas?

Thank you, Kent

over 5 years ago

0 George Mock over 5 years ago

TI__Guru**** 253410 points

Please consider using one of the standard library RTS functions div, ldiv, or lldiv. TI documentation does not cover standard RTS functions such as these. Please learn about them from your favorite book, web site, etc. on C.

Thanks and regards,

-George

0 Kent Deines over 5 years ago in reply to George Mock

Intellectual 280 points

George,

Thank you. I thought there was a way to do it. Its need was too obvious. I kept searing for examples of calculating both the remainder and the quotient and the only solutions that came up used both \ and %

Thank you again

Kent

Code Composer Studio™︎

Code Composer Studio forum

CCS/MSP430FR2311: how to read core registers in C