In the current C6000 CGT Version 7.4.6 (and in the previous versions) in the header file c6x.h there are some intinsics guarded by the define #ifdef _TMS320C6700 (line 200). These intrinsics also apply for C6600 DSP, and, thus, shall be guarded by #if defined(_TMS320C6700) || defined(_TMS320C6600).
For example, I am using the intrinsic _rsqrsp() (defined on line 208 in c6x.h) on the C6657 DSP and it works, but some tools (like PC lint) are, of cours, issuing an error due to not defined function.
