I dumped an object file using 'objdump', and found wierd instructions (unknown instructions). The following shows that wierd part.
The object file is built with thumb-2 compile option. So, you can find normal 16-bit and 32-bit instructions from line 0x524 and 0x56c. But, from line 0x570 to line 0x580, there are instructions I can not found in the reference manual (e.g. http://class.ece.iastate.edu/cpre288/resources/docs/Thumb-2SupplementReferenceManual.pdf).
What are they? and How can I interpret those instructions?