Forum Post: Question about "double format" ?

Hi,

I read sprabg7.pdf on C66x optimization. There are several parts talking about single precision instruction, but it also says "double precision format". I list two example below. Could you explain it to me on that?

Thanks,

Page 15/49:

CMPYSP:
– Perform the multiply operations for a complex multiply of two complex numbers a and b. Both sources are in double-precision format.

_complex_conjugate_mpysp(): C=_complex_conjugate_mpysp(A, B). If this intrinsic is used, both sources and results are in double format.