##### Synopsis

    #include <in430.h>
    unsigned long long _DNEG64(unsigned long long x);

##### Description

_DNEG64 negates (computes the 9's complement of) x using decimal arithmetic. x must be a binary coded decimal number and the result is a binary coded decimal number.

_DNEG64 is an intrinsic function and produces inline code.

##### Portability

_DNEG64 can be used on any MSP430 device.