公开(公告)号：HK1210846A1

公开(公告)日：2016-05-06

申请号：HK15111617

申请日：2015-11-25

Applicant: IBM

Inventor： GREINER DAN D ,  ROGERS ROBERT R ,  SITTMANN GUSTAV G

IPC: G06F20060101

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.

公开(公告)号：HK1207441A1

公开(公告)日：2016-01-29

申请号：HK15108072

申请日：2015-08-20

Applicant: IBM

Inventor： GREINER DAN D ,  SITTMANN GUSTAV G

IPC: G06F20060101

Abstract: A computer implemented instruction is executed. One or more translation table entry locations (TLB) are specified by the instruction. Based on a local-clearing (LC) control specified by the instruction being a first value, the processor selectively clears TLBs in a plurality of the CPUs in a configuration of entries corresponding to the determined translation table entry location. Based on the local-clearing (LC) being a second value, the processor selectively clears only the TLBs of the CPU executing the instruction of entries corresponding to the determined translation table entry location. A computer program product, computer system and computer implemented method are provided.