Analog Devices ADSP-BF53x Blackfin Reference page 695

• If
•
R2.H
•
R3.H
•
R2.L
•
R3.L
then
•
R7.H
•
R7.L
• If
•
R2.H
•
R3.H
•
R2.L
•
R3.L
then
•
R7.H
•
R7.L
Also See
None
Special Applications
Use the Sum on Sign instruction to compute the branch metric used by
each Viterbi Butterfly.
ADSP-BF53x/BF56x Blackfin Processor Programming Reference
= 2
= 23
= –2001
= 1234
= –1211 (or (–1234) + 23)
= –1211
= –2
= 23
= –2001
= 1234
= –1257 (or (–1234) – 23)
= –1257
Vector Operations
19-7