MICRO-OP FUSION FOR NON-ADJACENT INSTRUCTIONS

Method(s) for up/down fusion and/or pseudo-fusion of micro-operations are performed in a hardware processor configured to execute program code. A mergeable pair of micro-operations is identified in a sequence of micro-operations of the program code. The pair of micro-operations includes a first micr...

Full description

Saved in:
Bibliographic Details
Main Authors FRIEDMANN, Jonathan, LEVISON, Nadav, MIZRAHI, Noam
Format Patent
LanguageEnglish
Published 10.05.2018
Subjects
CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
PHYSICS
Online AccessGet full text

Cover

More Information
Summary:Method(s) for up/down fusion and/or pseudo-fusion of micro-operations are performed in a hardware processor configured to execute program code. A mergeable pair of micro-operations is identified in a sequence of micro-operations of the program code. The pair of micro-operations includes a first micro-operation for performing a first function and a non-consecutive second micro-operation for performing a second function. The first micro-operation precedes the second micro-operation in the sequence of micro-operations being processed. The first micro-operation is merged into the second micro-operation to create a third micro-operation which performs both the first function and the second function. In up/down fusion the third micro-operation is dispatched instead of the first micro-operation or instead of the second micro-operation, based on whether fuse-up or fuse-down is performed. In pseudo-fusion the first micro-operation is retained in the sequence of micro-operations and the second micro-operation is replaced with the third micro-operation.
Bibliography:Application Number: US201715690536