Analog Devices ADSP-BF53x Blackfin Reference page 597

Required Mode
User & Supervisor
Parallel Issue
This instruction can be issued in parallel with specific other 16-bit
instructions. For details, see
Example
r2.l = signbits r7 ;
r1.l = signbits r5.l ;
r0.l = signbits r4.h ;
r6.l = signbits a0 ;
r5.l = signbits a1 ;
Also See
EXPADJ
Special Applications
You can use the exponent as shift magnitude for array normalization. You
can accomplish normalization by using the
without using special normalizing instructions, as required on other
architectures.
ADSP-BF53x/BF56x Blackfin Processor Programming Reference
"Issuing Parallel Instructions" on page
ASHIFT
Arithmetic Operations
instruction directly,
20-1.
15-85