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undecoded instruction on ccs 5.5, can someone tell me what it is

Hi, everyone

i ran a fft program, target at c6678 on ccs 5.5, the result is ok, but i met something weird when i assembly step over.

And I disassembled the .out with dis6x which comes with the ccs 6.0, and I got this

but clearly, it's not the "DPSP" instruction according to the manual

So, can someone help me out here, thanks