COMPARING AND REPLACING DYNAMIC ADDRESS TRANSLATION TABLE ENTRY Russian patent published in 2015 - IPC G06F12/12 G06F9/34 

FIELD: physics, computer engineering.

SUBSTANCE: invention relates to data processing in a computing environment. A computer-implemented method of comparing first and second address translation entries includes: determining, by a processor, from an operation code of a machine executable instruction to be executed, that the instruction is a compare and replace DAT table entry instruction, the instruction comprising an R₁ field and an R₂ field; and executing, by the processor, the instruction, the executing comprising: obtaining an original second operand from a memory cell specified by registers of an even-odd register pair designated by the R₂ field of the instruction; comparing a first operand and the obtained original second operand, the first operand contained in an even-numbered (even R₁) register of an even-odd register pair designated by the R₁ field of the instruction; based on the first operand being equal to the original second operand, storing the contents of the even R₁ register in the second operand location as the new second operand.

EFFECT: enabling replacement of a dynamic address translation (DAT) table entry.

14 cl, 7 dwg