Methods, systems and apparatus for supporting wide and efficient front-end operation with guest-architecture emulation

A cache system, comprising:

• a cache controller to:
• fetch, a first cache line that includes a branch instruction and, based on information in a data table, either a second cache line that is adjacent to the first cache line in the instruction cache or a target cache line that is stored at a target address of the branch instruction,
• wherein the information is populated in the data table upon moving the first cache line from an L2 cache to an L1 cache.

A non-transitory machine-readable storage medium that stores instructions, which when executed by a processor, causes the processor to:

• fetch, a first cache line that includes a branch instruction and, based on information in a data table, either a second cache line that is adjacent to the first cache line in an instruction cache or a target cache line that is stored at a target address of the branch instruction,
• wherein the information is populated in the data table upon moving the first cache line from an L2 cache to an L1 cache.