Texas Instruments TMS320C64X Programmer's Reference Manual page 28

Differences Between the C64x and C64x+ DSPLIBs
Table 3−10. Functions Optimized in the C64x+ DSPLIB (Continued)
Function
DSP_blk_eswap16
DSP_blk_eswap32
DSP_blk_move
DSP_fltoq15
DSP_minerror
DSP_q15tofl
DSP_bitrev_cplx
DSP_radix2
DSP_r4fft
DSP_fft
DSP_fft16x16t
3-10
C64x+ Optimized
Any functions which were not optimized for the C64x+ have the same
performance as on the C64x.
Optimization Type
No
No
Yes SPLOOP conversion
No
No
No
No Obsolete
No Obsolete
No Obsolete
No Obsolete
No Obsolete