发明申请
US20090210662A1 MICROPROCESSOR, METHOD AND COMPUTER PROGRAM PRODUCT FOR DIRECT PAGE PREFETCH IN MILLICODE CAPABLE COMPUTER SYSTEM 有权
MICROPROCESSOR,方法和计算机程序产品,用于在MILLICODE可编程计算机系统中直接提取

MICROPROCESSOR, METHOD AND COMPUTER PROGRAM PRODUCT FOR DIRECT PAGE PREFETCH IN MILLICODE CAPABLE COMPUTER SYSTEM
摘要:
A microprocessor equipped to provide hardware initiated prefetching, includes at least one architecture for performing: issuance of a prefetch instruction; writing of a prefetch address into a prefetch fetch address register (PFAR); attempting a prefetch according to the address; detecting one of a cache miss and a cache hit; and if there is a cache miss, then sending a miss request to a next cache level and attempting cache access in a non-busy cycle; and if there is a cache hit, then incrementing the address in the PFAR and completing the prefetch. A method and a computer program product are provided.
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