FIELD: information technology.
SUBSTANCE: branch target address is extracted from a branch target address cache (BTAC) in response to failure in searching for an instruction address in an instruction cache (I-cache). The branch target address is associated with the instruction address. The branch target address extracted from the BTAC is stored in the I-cache. Using the disclosed method, the next instruction addresses are sought for in the I-cache, in a nonparallel manner from the BTAC, thus saving power by cutting useless searches in the BTAC.
EFFECT: faster search by reducing searches in the branch target address cache.
21 cl, 8 dwg
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