JP2001513933A - キャッシュ再充填中のcpuアイドルサイクルを最小にする追加のレジスタ - Google Patents
キャッシュ再充填中のcpuアイドルサイクルを最小にする追加のレジスタInfo
- Publication number
- JP2001513933A JP2001513933A JP53350599A JP53350599A JP2001513933A JP 2001513933 A JP2001513933 A JP 2001513933A JP 53350599 A JP53350599 A JP 53350599A JP 53350599 A JP53350599 A JP 53350599A JP 2001513933 A JP2001513933 A JP 2001513933A
- Authority
- JP
- Japan
- Prior art keywords
- cache
- data
- execution unit
- buffer
- instruction
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F12/00—Accessing, addressing or allocating within memory systems or architectures
- G06F12/02—Addressing or allocation; Relocation
- G06F12/08—Addressing or allocation; Relocation in hierarchically structured memory systems, e.g. virtual memory systems
- G06F12/0802—Addressing of a memory level in which the access to the desired data or data block requires associative addressing means, e.g. caches
- G06F12/0875—Addressing of a memory level in which the access to the desired data or data block requires associative addressing means, e.g. caches with dedicated cache, e.g. instruction or stack
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F9/00—Arrangements for program control, e.g. control units
- G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
- G06F9/30—Arrangements for executing machine instructions, e.g. instruction decode
- G06F9/38—Concurrent instruction execution, e.g. pipeline, look ahead
- G06F9/3824—Operand accessing
- G06F9/383—Operand prefetching
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F12/00—Accessing, addressing or allocating within memory systems or architectures
- G06F12/02—Addressing or allocation; Relocation
- G06F12/08—Addressing or allocation; Relocation in hierarchically structured memory systems, e.g. virtual memory systems
- G06F12/0802—Addressing of a memory level in which the access to the desired data or data block requires associative addressing means, e.g. caches
- G06F12/0844—Multiple simultaneous or quasi-simultaneous cache accessing
- G06F12/0855—Overlapped cache accessing, e.g. pipeline
- G06F12/0859—Overlapped cache accessing, e.g. pipeline with reload from main memory
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F9/00—Arrangements for program control, e.g. control units
- G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
- G06F9/30—Arrangements for executing machine instructions, e.g. instruction decode
- G06F9/30003—Arrangements for executing specific machine instructions
- G06F9/3004—Arrangements for executing specific machine instructions to perform operations on memory
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F9/00—Arrangements for program control, e.g. control units
- G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
- G06F9/30—Arrangements for executing machine instructions, e.g. instruction decode
- G06F9/38—Concurrent instruction execution, e.g. pipeline, look ahead
- G06F9/3802—Instruction prefetching
- G06F9/3814—Implementation provisions of instruction buffers, e.g. prefetch buffer; banks
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F9/00—Arrangements for program control, e.g. control units
- G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
- G06F9/30—Arrangements for executing machine instructions, e.g. instruction decode
- G06F9/38—Concurrent instruction execution, e.g. pipeline, look ahead
- G06F9/3824—Operand accessing
Abstract
Description
Claims (1)
- 【特許請求の範囲】 1.CPUを具える電子回路であって、このCPUが、 − 情報アイテムを受信する入力部と、 − その情報アイテムを処理する実行ユニットと、 − 前記入力部と実行ユニットとの間にあるキャッシュと、 − 前記入力部と実行ユニットとの間にあり、前記アイテムを格納するバッファ と、 − 前記バッファに接続され、前記バッファへの前記アイテムの格納及びキャッ シュ再充填のほぼ完了時での前記アイテムの前記実行ユニットへの供給を制御す るバッファコントローラとを有することを特徴とする電子回路。 2.前記バッファコントローラがキャッシュコントローラを具えることを特徴と する請求の範囲1記載の電子回路。 3.前記キャッシュがデータキャッシュを具えることを特徴とする請求の範囲1 記載の電子回路。 4.前記キャッシュがインストラクションキャッシュを具えることを特徴とする 請求の範囲1記載の電子回路。 5.CPUを具える電子回路であって、このCPUが、 − データを受信するデータ入力部と、 − インストラクションを受信するインストラクション入力部と、 − 前記インストラクションの制御の下で前記データを処理する実行ユニットと 、 − 前記データ入力部と前記実行ユニットとの間にあるデータキャッシュと、 − 前記データ入力部と前記実行ユニットとの間にあり、前記データを格納する データバッファと、 − 前記データバッファに接続され、前記データバッファへの前記データの格納 及びデータキャッシュ再充填のほぼ完了時での前記データの前記実行ユニットへ の供給を制御するデータバッファコントローラと、 − 前記インストラクション入力部と前記実行ユニットとの間にあるインストラ クションキャッシュと、 − 前記インストラクション入力部と前記実行ユニットとの間にあり、前記イン ストラクションを格納するインストラクションバッファと、 − 前記インストラクションバッファに接続され、前記インストラクションバッ ファへの前記インストラクションの格納及びインストラクションキャッシュ再充 填のほぼ完了時での前記インストラクションの前記実行ユニットへの供給を制御 するインストラクションバッファコントローラとを具えることを特徴とする電子 回路。 6.情報アイテムを処理する実行ユニット及びキャッシュを有する電子回路によ って情報を処理するに当たり、前記アイテムをバッファに格納するとともにキャ ッシュ再充填がほぼ完了する際に前記アイテムを前記実行ユニットに供給するこ とを特徴とする情報処理方法。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/995,820 US6308241B1 (en) | 1997-12-22 | 1997-12-22 | On-chip cache file register for minimizing CPU idle cycles during cache refills |
US08/995,820 | 1997-12-22 | ||
PCT/IB1998/001549 WO1999032979A1 (en) | 1997-12-22 | 1998-10-05 | Extra register minimizes cpu idle cycles during cache refill |
Publications (1)
Publication Number | Publication Date |
---|---|
JP2001513933A true JP2001513933A (ja) | 2001-09-04 |
Family
ID=25542249
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP53350599A Pending JP2001513933A (ja) | 1997-12-22 | 1998-10-05 | キャッシュ再充填中のcpuアイドルサイクルを最小にする追加のレジスタ |
Country Status (7)
Country | Link |
---|---|
US (1) | US6308241B1 (ja) |
EP (1) | EP0968470B1 (ja) |
JP (1) | JP2001513933A (ja) |
KR (1) | KR100618057B1 (ja) |
CN (1) | CN1133932C (ja) |
DE (1) | DE69813196T2 (ja) |
WO (1) | WO1999032979A1 (ja) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6549985B1 (en) * | 2000-03-30 | 2003-04-15 | I P - First, Llc | Method and apparatus for resolving additional load misses and page table walks under orthogonal stalls in a single pipeline processor |
JP5076133B2 (ja) * | 2000-06-27 | 2012-11-21 | インベンサス、コーポレーション | フラッシュを備えた集積回路 |
US6865665B2 (en) * | 2000-12-29 | 2005-03-08 | Stmicroelectronics, Inc. | Processor pipeline cache miss apparatus and method for operation |
US7107471B2 (en) * | 2001-03-21 | 2006-09-12 | Apple Computer, Inc. | Method and apparatus for saving power in pipelined processors |
US7054988B2 (en) * | 2003-04-17 | 2006-05-30 | Lsi Logic Corporation | Bus interface for processor |
US7127560B2 (en) * | 2003-10-14 | 2006-10-24 | International Business Machines Corporation | Method of dynamically controlling cache size |
DE102011010938A1 (de) * | 2011-02-11 | 2012-08-16 | müller co-ax ag | Stufenlos geregeltes, direkt gesteuertes Absperrventil |
US8694994B1 (en) * | 2011-09-07 | 2014-04-08 | Amazon Technologies, Inc. | Optimization of packet processing by delaying a processor from entering an idle state |
CN102831078B (zh) * | 2012-08-03 | 2015-08-26 | 中国人民解放军国防科学技术大学 | 一种cache中提前返回访存数据的方法 |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5179679A (en) * | 1989-04-07 | 1993-01-12 | Shoemaker Kenneth D | Apparatus and method for permitting reading of data from an external memory when data is stored in a write buffer in the event of a cache read miss |
JP3018038B2 (ja) * | 1990-01-18 | 2000-03-13 | 三菱電機株式会社 | キャッシュを有するデータ処理装置 |
EP0473804A1 (en) * | 1990-09-03 | 1992-03-11 | International Business Machines Corporation | Alignment of line elements for memory to cache data transfer |
US5386526A (en) * | 1991-10-18 | 1995-01-31 | Sun Microsystems, Inc. | Cache memory controller and method for reducing CPU idle time by fetching data during a cache fill |
US5353426A (en) | 1992-04-29 | 1994-10-04 | Sun Microsystems, Inc. | Cache miss buffer adapted to satisfy read requests to portions of a cache fill in progress without waiting for the cache fill to complete |
US5671444A (en) * | 1994-02-28 | 1997-09-23 | Intel Corporaiton | Methods and apparatus for caching data in a non-blocking manner using a plurality of fill buffers |
US5752263A (en) * | 1995-06-05 | 1998-05-12 | Advanced Micro Devices, Inc. | Apparatus and method for reducing read miss latency by predicting sequential instruction read-aheads |
US5854914A (en) * | 1996-02-13 | 1998-12-29 | Intel Corporation | Mechanism to improved execution of misaligned loads |
US5765190A (en) * | 1996-04-12 | 1998-06-09 | Motorola Inc. | Cache memory in a data processing system |
-
1997
- 1997-12-22 US US08/995,820 patent/US6308241B1/en not_active Expired - Lifetime
-
1998
- 1998-10-05 KR KR1019997007624A patent/KR100618057B1/ko active IP Right Grant
- 1998-10-05 JP JP53350599A patent/JP2001513933A/ja active Pending
- 1998-10-05 EP EP98944178A patent/EP0968470B1/en not_active Expired - Lifetime
- 1998-10-05 CN CNB988041588A patent/CN1133932C/zh not_active Expired - Lifetime
- 1998-10-05 WO PCT/IB1998/001549 patent/WO1999032979A1/en active IP Right Grant
- 1998-10-05 DE DE69813196T patent/DE69813196T2/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
CN1133932C (zh) | 2004-01-07 |
EP0968470A1 (en) | 2000-01-05 |
US6308241B1 (en) | 2001-10-23 |
WO1999032979A1 (en) | 1999-07-01 |
CN1252143A (zh) | 2000-05-03 |
EP0968470B1 (en) | 2003-04-09 |
DE69813196D1 (de) | 2003-05-15 |
DE69813196T2 (de) | 2003-12-18 |
KR20000075564A (ko) | 2000-12-15 |
KR100618057B1 (ko) | 2006-08-30 |
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