6.5.4. Static predictor

Branches must be resolved one time to be predicted by the dynamic predictor. To accelerate cold startup of code, the Cortex-A15 processor includes a static predictor that detects branches in the code stream as follows:

To avoid potential illegal speculation, the static predictor is disabled when the MMU is disabled. The static predictor does not predict return stack pops with r9 base register in ThumbEE state.

Copyright © 2011 ARM. All rights reserved.ARM DDI 0438D