COMPARE AND REPLACE DAT TABLE ENTRY
    2.
    发明授权

    公开(公告)号:EP2862089B1

    公开(公告)日:2018-12-26

    申请号:EP12879101.9

    申请日:2012-11-26

    Abstract: A first and a second operand are compared. If they are equal, the contents of register R1+1 are stored at the second-operand location, and the specified CPU or CPUs in the configuration are cleared of all TLB table entries of the designated type formed through the use of the replaced entry in storage, and all lower-level TLB table entries formed through the use of the cleared higher-level TLB table entries. A valid DAT table entry is replaced with a new entry, and the Translation Lookaside Buffer (TLB) is purged of any copies of (at least) the single entry on all CPUs in the configuration. If the first and second operands are unequal, the second operand is loaded at the first-operand location. The comparison result is indicated by the condition code. A method, system and a computer program product are provided.

    LOAD REPLAY PRECLUDING MECHANISM
    4.
    发明授权

    公开(公告)号:EP3032400B1

    公开(公告)日:2018-10-31

    申请号:EP15196876.5

    申请日:2015-11-27

    Abstract: An apparatus including first and second reservation stations. The first reservation station dispatches a load micro instruction, and indicates on a hold bus if the load micro instruction is a specified load micro instruction directed to retrieve an operand from a prescribed resource other than on-core cache memory. The second reservation station is coupled to the hold bus, and dispatches one or more younger micro instructions therein that depend on the load micro instruction for execution after a number of clock cycles following dispatch of the first load micro instruction, and if it is indicated on the hold bus that the load micro instruction is the specified load micro instruction, the second reservation station is configured to stall dispatch of the one or more younger micro instructions until the load micro instruction has retrieved the operand. The resources include an advanced programmable interrupt controller (APIC), configured to perform interrupt operations.

    LOOPBACK STRUCTURE AND DATA LOOPBACK PROCESSING METHOD FOR PROCESSOR

    公开(公告)号:EP2709003B1

    公开(公告)日:2018-08-01

    申请号:EP11865214.8

    申请日:2011-09-15

    Inventor: LI, Lihuang LI, Wei

    Abstract: The disclosure discloses a loopback structure and data loopback processing method of a processor. The loopback structure includes a register file unit, a data storing unit, and a data reading unit; wherein the register file unit is configured to provide a data reading-writing service for the data storing unit and the data reading unit; the data storing unit is connected to the register file unit, and is configured to read data via a reading port of the register file unit, to perform a data transformation on the read data, and to feed the transformed data back to the data reading unit; and the data reading unit is connected to the register file unit and the data storing unit, and is configured to transform the data fed back by the data storing unit, and to write the transformed data in the register file unit via a writing port of the register file unit. With the disclosure, it is possible to increase efficiency of the processor and decrease power consumption of the processor.

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