SYSTEM, METHOD AND SOFTWARE TO PRELOAD INSTRUCTIONS FROM INSTRUCTION SET OTHER THAN CURRENTLY EXECUTING INSTRUCTION SET

摘要

PROBLEM TO BE SOLVED: To provide a system and method for pre-decoding pre-loaded instructions according to an instruction set other than an executing instruction set.SOLUTION: An instruction preload instruction executed in a first processor instruction set operating mode is operative to correctly preload instructions in a different, second instruction set. The instructions are pre-decoded according to the second instruction set encoding in response to an instruction set preload indicator (ISPI). The ISPI may be set prior to executing the preload instruction, or may comprise part of the preload instruction or the preload target address.