JPH08504977A - スーパースカラ・マイクロプロセサにおけるロード及び/又はストア動作を扱うシステム及び方法 - Google Patents
スーパースカラ・マイクロプロセサにおけるロード及び/又はストア動作を扱うシステム及び方法Info
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- JPH08504977A JPH08504977A JP6509063A JP50906394A JPH08504977A JP H08504977 A JPH08504977 A JP H08504977A JP 6509063 A JP6509063 A JP 6509063A JP 50906394 A JP50906394 A JP 50906394A JP H08504977 A JPH08504977 A JP H08504977A
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Classifications
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- 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
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K47/00—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient
- A61K47/30—Macromolecular organic or inorganic compounds, e.g. inorganic polyphosphates
- A61K47/32—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds, e.g. carbomers, poly(meth)acrylates, or polyvinyl pyrrolidone
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- G06F9/30—Arrangements for executing machine instructions, e.g. instruction decode
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- G06F9/30043—LOAD or STORE instructions; Clear instruction
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- 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
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- G—PHYSICS
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- 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
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- G—PHYSICS
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- 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
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- G—PHYSICS
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- 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 or look ahead
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- Chemical & Material Sciences (AREA)
- Pharmacology & Pharmacy (AREA)
- Medicinal Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Epidemiology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Advance Control (AREA)
- Executing Machine-Instructions (AREA)
- Memory System Of A Hierarchy Structure (AREA)
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Abstract
Description
Claims (1)
- 【特許請求の範囲】 特許請求の範囲は以下の通りである。 1. プログラム・ストリームを実行するマイクロプロセサ・システムで、前記 マイクロプロセサ・システムは、 (a)命令ストアから命令を取りだして予め決められた複数の前記命令を命令 バッファに供給する命令フェッチ・ユニツトと、 (b)前記命令フェッチ・ユニットに連結された、前記命令バッファからの前 記複数の前記命令をアウト・オブ・オーダで実行する実行ユニットで、前記実行 ユニットはロード要求をメモリ・システムに対してアウト・オブ・オーダでスト ア要求をイン・オーダで行なうように適性化されたロード・ストア・ユニットを 備え、前記ロード・ストア・ユニットは、 (i) 実行中の前記複数の前記命令に対応する複数のアドレスを管理 するように適性化されたアドレス・パスと、 (ii)アドレス衝突及び書き込み実行待ちが実行中前記複数の前記命令 の各々の間に存在するか否かを検出して信号を送るアドレス衝突手段で、アドレ ス衝突も書き込み実行待ちも検出されなければ前記ロード・ストア・ユニットが 前記ロード要求を実行する、アドレス衝突手段と、 (iii)ロード及び/叉はストア・データを前記メモリ・システム及び前記 実行ユニット間で転送するデータ・パスで、前記データ・パスは前記メモリ・シ ステムから返されたデータを位置合わせし、それによりワード境界と一致するデ ータが前記メモリから正しいアライメントで前記実行ユニットに返されるように 構成されたデータ・パスと、 を有する、実行ユニットと、 から成ることを特徴とするマイクロプロセサ・システム。 2. 前記アドレス・パスは前記ロード及び/又は前記ストア要求の上位バイト 及び下位バイトを格納するための複数のアドレス・バッファを含むことを特徴と する請求項1に記載のシステム。 3. 前記データがワード境界と一致する場合、前記ロード・ストア・ユニット が複数のメモリ要求をメモリに対して行なう手段を含むことを特徴とする請求項 1に記載のシステム。 4. 前記ロード・ストア・ユニットに接続され、前記複数の命令用のアドレス を計算するために適性化されたデータ・アドレス機能ユニットからさらに成るこ とを特徴とする請求項1に記載のシステム。 5. 仮想アドレスから生成される物理アドレス変換を前記実行ユニット及び前 記ロード・ストア・ユニットに供給されるように適性化された仮想メモリユニッ トからさらに成ることを特徴とする請求項4に記載のシステム。 6. 前記ロード・ストア・ユニットはメモリ要求を行なう前に前記データ・ア ドレス機能及び前記仮想メモリユニットからの物理アドレスを必要とすることを 特徴とする請求項5に記載のシステム。 7. 前記命令がCISC型命令であり、そして前記命令実行ユニットが前記CISC型 命令をRISC型命令にデコードするデコード手段から成ることを特徴とする請求項 1に記載のシステム。 8. 前記ロード・ストア・ユニットがメモリから受け取るデータを行き先レジ スタの元々の内容とマージさせる手段から成ることを特徴とする請求項1に記載 のシステム。 9. 前記データ・パスにロード及び/叉は実行データを直接転送し、それによ って後続のストア・オペレーションがその後に直ちに実行されるようにするため に前記実行ユニット及び前記ロード/ストア・データ・パス間にデータ線を備え ることを特徴とする請求項1に記載のシステム。 10. 前記命令バッファ中の命令の比較的新しさを示す履歴ポインタからさらに 成ることを特徴とする請求項1に記載のシステム。 11. 前記衝突手段が、アドレス衝突又は実行待ちストア・アドレスが存在する かどうかを決定することによってロード依存性を示すことを特徴とする請求項1 に記載のシステム。 12. システムの状態を不正に変更するようなロード・バイパスを防止する手段 からさらに成ることを特徴とする請求項1に記載のシステム。 13. 前記ロード/ストア・データ・パスにストア・データを直接供給するため に機能ユニットの結果を監視する(スヌーピング)手段からさらに成ることを特 徴とする請求項1に記載のシステム。 14. 前記ロード・ストア・ユニットが浮動小数点演算用に別個のロード/スト ア・データ・パスを含むことを特徴とする請求項1に記載のシステム。 15. 前記実行ユニットにはレジスタ・ファイルが含まれ、レジスタ・ファイル には複数の実バッファ及び複数の一時バッファが含まれることを特徴とする請求 項1に記載のシステム。 16. ロード命令をアウト・オブ・オーダで発行する実行ユニットを有するRISC 型スーパースカラ・マイクロプロセサに於いて、メモリ素子との間のロード並び にストア要求を管理する方法で、その方法は、 (1) 命令ウィンドウから選択された命令のアドレスを計算し、前記アド レスを一つのロード・ストア・ユニットに転送するステップと、 (2) 前記命令がロード・オペレーション、ストア・オペレーション、実 行オペレーション、或いは前記ロード、前記ストア、及び前記実行の各オペレー ションの組み合わせを伴うか否かを決定するステツプと、 (3) 前記命令にロード・オペレーションが含まれる場合、アドレス衝突 及び書き込み実行待ちが存在するか否かを検査し、そして前記検査の結果を知ら せるステツプと、 (4) 優先度スキーム及び前記検査ステップ(3)の結果に基づき前記メモリ 素子に要求を行なうステップと、 (5) 要求されたデータを前記ロード・オペレーション及び/又は前記スト ア・オペレーションから前記ロード・ストア・ユニットのデータ・パス部分に於 いて受け取るステップと、 (6) 前記要求データが位置合わせされていないデータである場合、前記 要求データの位置合わせを行なうステップと、 から成ることを特徴とするロード及びストア要求を管理する方法。 17. 発行のステップ(1)は前記命令に対してデータ依存性検査を行なうステッ プが含むことを特徴とする請求項16に記載の方法。 18. 前記命令の結果を一時バッファ内の、予め決められた場所に書き込むステ ップからさらに成ることを特徴とする請求項16に記載の方法。 19. 前記一時バッファをバイパスすることによって前記ロード・ストア・ユニ ットにデータを供給するステップからさらに成ることを特徴とする請求項18に記 載の方法。 20. 全てのストア・オペレーション要求をプログラムの順序に行なうステップ からさらに成ることを特徴とする請求項16に記載の方法。 21. システムの状態を不正に変更するようなロード・オペレーションのロード ・バイパスを防止するステップからさらに成ることを特徴とする請求項16に記載 の方法。 22. メモリから受け取ったデータを行き先レジスタの元々の内容とマージさせ るステップからさらに成ることを特徴とする請求項16に記載の方法。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US95408492A | 1992-09-29 | 1992-09-29 | |
US07/954,084 | 1992-09-29 | ||
PCT/US1993/008331 WO1994008287A1 (en) | 1992-09-29 | 1993-09-03 | System and method for handling load and/or store operations in a superscalar microprocessor |
Related Child Applications (13)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2000008268A Division JP2000148491A (ja) | 1992-09-29 | 2000-01-17 | マイクロコンピュ―タシステム |
JP2000008265A Division JP2000148490A (ja) | 1992-09-29 | 2000-01-17 | コンピュ―タシステム |
JP2000008271A Division JP2000148494A (ja) | 1992-09-29 | 2000-01-17 | コンピュ―タシステム |
JP2000008269A Division JP2000148492A (ja) | 1992-09-29 | 2000-01-17 | コンピュ―タシステム |
JP2000008267A Division JP2000148483A (ja) | 1992-09-29 | 2000-01-17 | コンピュ―タシステム |
JP2000008263A Division JP2000148480A (ja) | 1992-09-29 | 2000-01-17 | 要求管理方法 |
JP2000008264A Division JP2000148481A (ja) | 1992-09-29 | 2000-01-17 | コンピュ―タシステム |
JP2000008270A Division JP2000148493A (ja) | 1992-09-29 | 2000-01-17 | コンピュ―タシステム |
JP2000008266A Division JP2000181708A (ja) | 1992-09-29 | 2000-01-17 | コンピュ―タシステム |
JP2002312519A Division JP3588755B2 (ja) | 1992-09-29 | 2002-10-28 | コンピュータシステム |
JP2002312520A Division JP3620530B2 (ja) | 1992-09-29 | 2002-10-28 | コンピュータシステム |
JP2002312517A Division JP2003131870A (ja) | 1992-09-29 | 2002-10-28 | コンピュータシステム |
JP2002312518A Division JP3627737B2 (ja) | 1992-09-29 | 2002-10-28 | コンピュータシステム |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH08504977A true JPH08504977A (ja) | 1996-05-28 |
JP3644959B2 JP3644959B2 (ja) | 2005-05-11 |
Family
ID=25494898
Family Applications (28)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP50906394A Expired - Lifetime JP3644959B2 (ja) | 1992-09-29 | 1993-09-03 | マイクロプロセッサシステム |
JP2000008270A Pending JP2000148493A (ja) | 1992-09-29 | 2000-01-17 | コンピュ―タシステム |
JP2000008263A Withdrawn JP2000148480A (ja) | 1992-09-29 | 2000-01-17 | 要求管理方法 |
JP2000008265A Withdrawn JP2000148490A (ja) | 1992-09-29 | 2000-01-17 | コンピュ―タシステム |
JP2000008269A Pending JP2000148492A (ja) | 1992-09-29 | 2000-01-17 | コンピュ―タシステム |
JP2000008264A Pending JP2000148481A (ja) | 1992-09-29 | 2000-01-17 | コンピュ―タシステム |
JP2000008268A Pending JP2000148491A (ja) | 1992-09-29 | 2000-01-17 | マイクロコンピュ―タシステム |
JP2000008267A Withdrawn JP2000148483A (ja) | 1992-09-29 | 2000-01-17 | コンピュ―タシステム |
JP2000008266A Withdrawn JP2000181708A (ja) | 1992-09-29 | 2000-01-17 | コンピュ―タシステム |
JP2000008271A Pending JP2000148494A (ja) | 1992-09-29 | 2000-01-17 | コンピュ―タシステム |
JP2002312517A Withdrawn JP2003131870A (ja) | 1992-09-29 | 2002-10-28 | コンピュータシステム |
JP2002312519A Expired - Lifetime JP3588755B2 (ja) | 1992-09-29 | 2002-10-28 | コンピュータシステム |
JP2002312520A Expired - Lifetime JP3620530B2 (ja) | 1992-09-29 | 2002-10-28 | コンピュータシステム |
JP2002312518A Expired - Lifetime JP3627737B2 (ja) | 1992-09-29 | 2002-10-28 | コンピュータシステム |
JP2004273803A Expired - Lifetime JP3772899B2 (ja) | 1992-09-29 | 2004-09-21 | コンピュータシステム |
JP2004306379A Expired - Lifetime JP3772900B2 (ja) | 1992-09-29 | 2004-10-21 | コンピュータシステム |
JP2004337022A Expired - Lifetime JP3772901B2 (ja) | 1992-09-29 | 2004-11-22 | コンピュータシステム |
JP2004370411A Expired - Lifetime JP3772902B2 (ja) | 1992-09-29 | 2004-12-22 | コンピュータシステム |
JP2005013797A Expired - Lifetime JP3772903B2 (ja) | 1992-09-29 | 2005-01-21 | コンピュータシステム |
JP2005043359A Expired - Lifetime JP3741144B2 (ja) | 1992-09-29 | 2005-02-21 | コンピュータシステム |
JP2005083005A Expired - Lifetime JP3741146B2 (ja) | 1992-09-29 | 2005-03-23 | コンピュータシステム |
JP2005124391A Expired - Lifetime JP3772905B2 (ja) | 1992-09-29 | 2005-04-22 | コンピュータシステム |
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1999
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JPH11512855A (ja) * | 1995-10-06 | 1999-11-02 | アドバンスト・マイクロ・デバイシズ・インコーポレイテッド | ロード/ストアオペレーションのout−of−order実行の制御 |
JP2000515268A (ja) * | 1996-01-26 | 2000-11-14 | アドバンスト・マイクロ・デバイシズ・インコーポレイテッド | ロード/ストアオペレーションのout―of―order実行コントロールのための階層的スキャンロジック |
JP2000293436A (ja) * | 1999-03-22 | 2000-10-20 | Sun Microsyst Inc | パイプラインメモリシステムにおける複数のターゲットへの複数の未解決要求のサポート |
JP4585647B2 (ja) * | 1999-03-22 | 2010-11-24 | サン・マイクロシステムズ・インコーポレーテッド | パイプラインメモリシステムにおける複数のターゲットへの複数の未解決要求のサポート |
US6986027B2 (en) * | 2000-05-26 | 2006-01-10 | International Business Machines Corporation | Universal load address/value prediction using stride-based pattern history and last-value prediction in a two-level table scheme |
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