公开(公告)号：US20250117252A1

公开(公告)日：2025-04-10

申请号：US18483636

申请日：2023-10-10

Applicant: Arm Limited

Inventor： Kim Richard SCHUTTENBERG ,  Joshua David KNEBEL

IPC: G06F9/48 ,  G06F9/30 ,  G06F9/38

Abstract: Apparatuses, methods, systems, chip containing products, and computer readable media are disclosed. An apparatus comprises dispatch circuitry to receive instructions, and to identify linear chains of instructions each comprising a first instruction and one or more further instructions, which are temporarily ineligible for execution due to a dependence on an immediately preceding instruction. The apparatus further comprises offline storage circuitry. The dispatch circuitry is configured, for each of the linear chains: to dispatch the sequentially first instruction to the issue circuitry and to retain the one or more further instructions in the offline storage circuitry until a chain trigger signal is received, the chain trigger signal indicating that a previously dispatched instruction, on which a sequentially next instruction depends, has satisfied a predefined issuing condition. In response to receipt of the chain trigger signal, the dispatch circuitry is configured to dispatch the sequentially next instruction to the issue circuitry.

公开(公告)号：US20240111535A1

公开(公告)日：2024-04-04

申请号：US17959556

申请日：2022-10-04

Applicant: Arm Limited

Inventor： William Elton BURKY ,  Nicholas Andrew PLANTE ,  Alexander Cole SHULYAK ,  Joshua David KNEBEL ,  Yasuo ISHII

IPC: G06F9/30 ,  G06F9/38

CPC classification number: G06F9/30145 ,  G06F9/30181 ,  G06F9/3855

Abstract: A data processing apparatus includes detection circuitry that detects a parent instruction and a child instruction from a stream of instructions. The parent instruction references a destination register that is referenced as a source register by the child instruction. Adjustment circuitry then adjusts the child instruction to produce an adjusted child instruction whose behaviour is logically equivalent to a behaviour of executing the parent instruction followed by the child instruction.