JP2021168036A - 演算処理装置 - Google Patents
演算処理装置 Download PDFInfo
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- JP2021168036A JP2021168036A JP2020071046A JP2020071046A JP2021168036A JP 2021168036 A JP2021168036 A JP 2021168036A JP 2020071046 A JP2020071046 A JP 2020071046A JP 2020071046 A JP2020071046 A JP 2020071046A JP 2021168036 A JP2021168036 A JP 2021168036A
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- 238000000034 method Methods 0.000 claims abstract description 40
- 230000015654 memory Effects 0.000 description 10
- 238000010586 diagram Methods 0.000 description 8
- 230000006870 function Effects 0.000 description 4
- 238000003860 storage Methods 0.000 description 3
- 238000000354 decomposition reaction Methods 0.000 description 2
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F7/00—Methods or arrangements for processing data by operating upon the order or content of the data handled
- G06F7/38—Methods or arrangements for performing computations using exclusively denominational number representation, e.g. using binary, ternary, decimal representation
- G06F7/48—Methods or arrangements for performing computations using exclusively denominational number representation, e.g. using binary, ternary, decimal representation using non-contact-making devices, e.g. tube, solid state device; using unspecified devices
- G06F7/57—Arithmetic logic units [ALU], i.e. arrangements or devices for performing two or more of the operations covered by groups G06F7/483 – G06F7/556 or for performing logical operations
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- 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 or look ahead
- G06F9/3818—Decoding for concurrent execution
- G06F9/3822—Parallel decoding, e.g. parallel decode units
-
- 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
- G06F9/30145—Instruction analysis, e.g. decoding, instruction word fields
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Abstract
【解決手段】単一のサイクルで命令を処理する第1のデコーダ114と、複数のサイクルで命令を処理する第2のデコーダ114と、処理対象の命令が特定の命令であり、且つ、処理中の前方命令が存在しない場合には、第1のデコーダ114に処理対象の命令を処理させる一方、処理対象の命令が特定の命令でなく、又は、処理中の前方命令が存在する場合には、第2のデコーダ114に処理対象の命令を処理させる判定を行なう判定器114aと、を備える。
【選択図】図3
Description
〔A−1〕システム構成例
図1は、実施形態の一例における演算処理装置1のハードウェア構成例を模式的に示すブロック図である。
図1に示した演算処理装置1における対象命令の判定処理を、図7に示すフローチャート(ステップS1〜S6)に従って説明する。
上述した実施形態の一例における演算処理装置1によれば、例えば、以下の作用効果を奏することができる。
開示の技術は上述した実施形態に限定されるものではなく、本実施形態の趣旨を逸脱しない範囲で種々変形して実施することができる。本実施形態の各構成及び各処理は、必要に応じて取捨選択することができ、あるいは適宜組み合わせてもよい。
11 :CPU
101 :一次命令キャッシュ
102 :二次命令キャッシュ
103 :一次データキャッシュ
104 :固定小数点レジスタ
105 :浮動小数点レジスタ
106 :固定小数点更新バッファ
107 :浮動小数点更新バッファ
111 :命令フェッチアドレス生成器
112 :分岐予測機構
113 :命令バッファ
114 :命令デコーダ
114a :simple enable判定器
115 :レジスタリネーミング部
116a :RSA
116b :RSE
116c :RSF
116d :RSBR
116e :CSE
117 :オペランドアドレス生成器
118a,118b:演算器
119 :PC
12 :メモリ
13 :インターコネクト制御部
Claims (2)
- 単一のサイクルで命令を処理する第1のデコーダと、
複数のサイクルで命令を処理する第2のデコーダと、
処理対象の命令が特定の命令であり、且つ、処理中の前方命令が存在しない場合には、前記第1のデコーダに前記処理対象の命令を処理させる一方、前記処理対象の命令が前記特定の命令でなく、又は、処理中の前方命令が存在する場合には、前記第2のデコーダに前記処理対象の命令を処理させる判定を行なう判定器と、
を備える、演算処理装置。 - 前記判定器は、入力された命令オペコードに基づき、前記特定の命令の判定を行なう、
請求項1に記載の演算処理装置。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2020071046A JP7409208B2 (ja) | 2020-04-10 | 2020-04-10 | 演算処理装置 |
US17/182,328 US11720366B2 (en) | 2020-04-10 | 2021-02-23 | Arithmetic processing apparatus using either simple or complex instruction decoder |
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JP2020071046A JP7409208B2 (ja) | 2020-04-10 | 2020-04-10 | 演算処理装置 |
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JP2021168036A true JP2021168036A (ja) | 2021-10-21 |
JP7409208B2 JP7409208B2 (ja) | 2024-01-09 |
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US (1) | US11720366B2 (ja) |
JP (1) | JP7409208B2 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP4166722A1 (en) | 2021-10-13 | 2023-04-19 | Mitsubishi Heavy Industries, Ltd. | Method for disassembling offshore structure |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2510591B2 (ja) * | 1987-06-12 | 1996-06-26 | 株式会社日立製作所 | 命令処理装置 |
JPS6425240A (en) | 1987-07-22 | 1989-01-27 | Hitachi Ltd | Decoding instruction system |
JPH01320540A (ja) | 1988-06-22 | 1989-12-26 | Hitachi Ltd | 半導体集積回路装置 |
JPH0651984A (ja) * | 1992-06-05 | 1994-02-25 | Hitachi Ltd | マイクロプロセッサ |
US5630083A (en) * | 1994-03-01 | 1997-05-13 | Intel Corporation | Decoder for decoding multiple instructions in parallel |
US5881279A (en) * | 1996-11-25 | 1999-03-09 | Intel Corporation | Method and apparatus for handling invalid opcode faults via execution of an event-signaling micro-operation |
JP2002259118A (ja) | 2000-12-28 | 2002-09-13 | Matsushita Electric Ind Co Ltd | マイクロプロセッサ及び命令列変換装置 |
US10437596B2 (en) * | 2014-11-26 | 2019-10-08 | Texas Instruments Incorporated | Processor with a full instruction set decoder and a partial instruction set decoder |
-
2020
- 2020-04-10 JP JP2020071046A patent/JP7409208B2/ja active Active
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2021
- 2021-02-23 US US17/182,328 patent/US11720366B2/en active Active
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP4166722A1 (en) | 2021-10-13 | 2023-04-19 | Mitsubishi Heavy Industries, Ltd. | Method for disassembling offshore structure |
Also Published As
Publication number | Publication date |
---|---|
JP7409208B2 (ja) | 2024-01-09 |
US20210318854A1 (en) | 2021-10-14 |
US11720366B2 (en) | 2023-08-08 |
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