CA2062771A1 - Appareil et methode d'emulation de systemes de traitement d'informations - Google Patents
Appareil et methode d'emulation de systemes de traitement d'informationsInfo
- Publication number
- CA2062771A1 CA2062771A1 CA2062771A CA2062771A CA2062771A1 CA 2062771 A1 CA2062771 A1 CA 2062771A1 CA 2062771 A CA2062771 A CA 2062771A CA 2062771 A CA2062771 A CA 2062771A CA 2062771 A1 CA2062771 A1 CA 2062771A1
- Authority
- CA
- Canada
- Prior art keywords
- processor
- access
- predetermined address
- bus
- circuitry
- 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.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F13/10—Program control for peripheral devices
- G06F13/105—Program control for peripheral devices where the programme performs an input/output emulation function
Landscapes
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Bus Control (AREA)
- Hardware Redundancy (AREA)
- Test And Diagnosis Of Digital Computers (AREA)
Abstract
Ce système, à utiliser dans le cadre d'un système de traitement de l'information, se compose d'un bus du système (16) possédant un bus d'adresses du système (16a) et un bus de données du système, ainsi qu'au moins deux processeurs de données (12) et (14), couplés au bus du système, d'un dispositif d'émulation permettant au premier processeur d'exécuter, conjointement avec un autre processeur, un programme nécessitant l'accès à des emplacements d'adresses prédéterminées associées à un type spécifique de dispositif, plus particulièrement du type d'un dispositif I/O ne résidant pas en permanence en mémoire centrale. Le dispositif d'émulation comprend un ensemble de circuits (30) servant à détecter l'occurence de l'accès par le premier processeur à un emplacement d'adresse prédéterminée, un autre ensemble de circuits (SO) servant à arrêter le premier processeur avant l'achèvement d'un cycle d'accès et, enfin, un ensemble de circuits servant à prévenir le second processeur de l'arrêt du premier. Le dispositif comprend ensuite un ensemble de circuits (24a) destiné à indiquer au second processeur, une valeur de l'emplacement d'adresse prédéterminée à laquelle on a accédé et un type d'accès à l'emplacement d'adresse prédéterminée qui soit tel que le second processeur ait accès à un dispositif I/O du même type ou à un type correspondant de dispositif I/O. Le second processeur provoque le déblocage du premier processeur pour achever le cycle d'accès.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/367,297 US5093776A (en) | 1989-06-15 | 1989-06-15 | Information processing system emulation apparatus and method |
US367,297 | 1989-06-15 | ||
PCT/US1990/001642 WO1990016027A1 (fr) | 1989-06-15 | 1990-03-28 | Methode et appareil d'emulation pour un systeme de traitement de l'information |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2062771A1 true CA2062771A1 (fr) | 1990-12-16 |
CA2062771C CA2062771C (fr) | 2000-05-16 |
Family
ID=23446604
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002062771A Expired - Fee Related CA2062771C (fr) | 1989-06-15 | 1990-03-28 | Appareil et methode d'emulation de systemes de traitement d'informations |
Country Status (6)
Country | Link |
---|---|
US (1) | US5093776A (fr) |
EP (1) | EP0437550B1 (fr) |
AU (1) | AU640134B2 (fr) |
CA (1) | CA2062771C (fr) |
DE (1) | DE69031799T2 (fr) |
WO (1) | WO1990016027A1 (fr) |
Families Citing this family (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2590267B2 (ja) * | 1989-06-30 | 1997-03-12 | 株式会社日立製作所 | 仮想計算機における表示制御方式 |
US5519873A (en) * | 1990-08-31 | 1996-05-21 | International Business Machines Corporation | Apparatus for switching digital command execution between a general purpose microprocessor and dedicted execution logic |
US5454092A (en) * | 1991-02-04 | 1995-09-26 | Motorola, Inc. | Microcomputer having an improved internal address mapping apparatus |
JP2839730B2 (ja) * | 1991-02-25 | 1998-12-16 | 株式会社東芝 | エミュレーション装置及び半導体装置 |
JPH05216712A (ja) * | 1991-10-23 | 1993-08-27 | Internatl Business Mach Corp <Ibm> | コンピュータシステムおよびこのコンピュータシステム上で内観的タスクを遂行する方法並びにi/oプロセッサアセンブリ |
BR9204660A (pt) * | 1991-12-20 | 1993-06-22 | Ibm | Sistema de rede de computadores que engloba uma interface para sistemas de computadores pequenos(scsi)para dispositivos de scsi nao locais |
US5522069A (en) * | 1993-04-30 | 1996-05-28 | Zenith Data Systems Corporation | Symmetric multiprocessing system with unified environment and distributed system functions |
US5687312A (en) * | 1993-07-30 | 1997-11-11 | Texas Instruments Incorporated | Method and apparatus for processor emulation |
US5526503A (en) * | 1993-10-06 | 1996-06-11 | Ast Research, Inc. | Virtual addressing buffer circuit |
US5867655A (en) * | 1993-12-08 | 1999-02-02 | Packard Bell Nec | Method to store privileged data within the primary CPU memory space |
US5742841A (en) * | 1993-12-08 | 1998-04-21 | Packard Bell Nec | Alternate I/O port access to standard register set |
US5970237A (en) * | 1994-06-14 | 1999-10-19 | Intel Corporation | Device to assist software emulation of hardware functions |
JP2734992B2 (ja) * | 1994-07-25 | 1998-04-02 | 日本電気株式会社 | 情報処理装置 |
US6106565A (en) * | 1997-02-27 | 2000-08-22 | Advanced Micro Devices, Inc. | System and method for hardware emulation of a digital circuit |
US6873948B1 (en) | 1998-05-21 | 2005-03-29 | Lsi Logic Corporation | Method and apparatus for emulating a device within a data processing system |
US7464044B2 (en) * | 1998-12-08 | 2008-12-09 | International Business Machines Corporation | Method and system for using emulation objects for developing point of sale |
US6560573B1 (en) * | 1999-07-30 | 2003-05-06 | Emc Corporation | Storage controller with hardware emulation controller for emulation between control processor and transfer circuitry compatible to different processor |
DE20204651U1 (de) | 2002-03-18 | 2003-08-07 | Peeters Bernd | Vorrichtung zum Schutz gegen unauthorisierte Benutzung von Software |
Family Cites Families (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3938101A (en) * | 1973-12-26 | 1976-02-10 | International Business Machines Corporation | Computer system with post execution I/O emulation |
US3955180A (en) * | 1974-01-02 | 1976-05-04 | Honeywell Information Systems Inc. | Table driven emulation system |
US4031517A (en) * | 1974-04-24 | 1977-06-21 | Honeywell Information Systems, Inc. | Emulation of target system interrupts through the use of counters |
US4315321A (en) * | 1978-06-16 | 1982-02-09 | The Kardios Systems Corporation | Method and apparatus for enhancing the capabilities of a computing system |
US4313162A (en) * | 1979-12-14 | 1982-01-26 | Burroughs Corporation | I/O Subsystem using data link processors |
US4482948A (en) * | 1980-12-29 | 1984-11-13 | Gte Automatic Electric Labs Inc. | Microprocessor bus interchange circuit |
US4447876A (en) * | 1981-07-30 | 1984-05-08 | Tektronix, Inc. | Emulator control sequencer |
US4547849A (en) * | 1981-12-09 | 1985-10-15 | Glenn Louie | Interface between a microprocessor and a coprocessor |
US4484266A (en) * | 1981-12-11 | 1984-11-20 | The United States Of America As Represented By The Secretary Of The Navy | Externally specified index peripheral simulation system |
US4509122A (en) * | 1982-11-18 | 1985-04-02 | International Business Machines Corporation | Method for controlling the file transfer capability of an interactive text processing system that is emulating a host processing system terminal |
US4590556A (en) * | 1983-01-17 | 1986-05-20 | Tandy Corporation | Co-processor combination |
US4665501A (en) * | 1983-09-30 | 1987-05-12 | Esprit Systems, Inc. | Workstation for local and remote data processing |
NL8401886A (nl) * | 1984-06-14 | 1986-01-02 | Tno | Warmtedistributie met buffersysteem. |
US4727480A (en) * | 1984-07-09 | 1988-02-23 | Wang Laboratories, Inc. | Emulation of a data processing system |
US4675813A (en) * | 1985-01-03 | 1987-06-23 | Northern Telecom Limited | Program assignable I/O addresses for a computer |
US4638423A (en) * | 1985-03-06 | 1987-01-20 | Motorola, Inc. | Emulating computer |
US4707803A (en) * | 1985-06-17 | 1987-11-17 | International Business Machines Corporation | Emulator for computer system input-output adapters |
US4875186A (en) * | 1986-02-28 | 1989-10-17 | Prime Computer, Inc. | Peripheral emulation apparatus |
US4920481A (en) * | 1986-04-28 | 1990-04-24 | Xerox Corporation | Emulation with display update trapping |
CA1296807C (fr) * | 1986-09-08 | 1992-03-03 | Paul R. Culley | Commande de debit pour ordinateur a debit de traitement fixe |
-
1989
- 1989-06-15 US US07/367,297 patent/US5093776A/en not_active Expired - Lifetime
-
1990
- 1990-03-28 AU AU53533/90A patent/AU640134B2/en not_active Ceased
- 1990-03-28 WO PCT/US1990/001642 patent/WO1990016027A1/fr active IP Right Grant
- 1990-03-28 EP EP90905836A patent/EP0437550B1/fr not_active Expired - Lifetime
- 1990-03-28 DE DE69031799T patent/DE69031799T2/de not_active Expired - Fee Related
- 1990-03-28 CA CA002062771A patent/CA2062771C/fr not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
EP0437550A1 (fr) | 1991-07-24 |
WO1990016027A1 (fr) | 1990-12-27 |
DE69031799D1 (de) | 1998-01-22 |
DE69031799T2 (de) | 1998-07-09 |
AU640134B2 (en) | 1993-08-19 |
AU5353390A (en) | 1991-01-08 |
US5093776A (en) | 1992-03-03 |
EP0437550B1 (fr) | 1997-12-10 |
CA2062771C (fr) | 2000-05-16 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request | ||
MKLA | Lapsed |