JPS6426961A - Exclusive control system for input/output port - Google Patents

Exclusive control system for input/output port

Info

Publication number
JPS6426961A
JPS6426961A JP18441887A JP18441887A JPS6426961A JP S6426961 A JPS6426961 A JP S6426961A JP 18441887 A JP18441887 A JP 18441887A JP 18441887 A JP18441887 A JP 18441887A JP S6426961 A JPS6426961 A JP S6426961A
Authority
JP
Japan
Prior art keywords
input
hardware
type
output port
control system
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
Application number
JP18441887A
Other languages
Japanese (ja)
Inventor
Yasuko Shimada
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Alps Alpine Co Ltd
Original Assignee
Alps Electric Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Alps Electric Co Ltd filed Critical Alps Electric Co Ltd
Priority to JP18441887A priority Critical patent/JPS6426961A/en
Publication of JPS6426961A publication Critical patent/JPS6426961A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE:To always ensure the normal working of hardware by providing a control part to a 386-machine to decide the request for permission of application of an input/output port so that the mixture is avoided with a task of another V86 type. CONSTITUTION:A system 2 is constituted under the tasks 1 of a protection mode of a V86 type and the drivers 3.3... for protection are added. Furthermore an input/output I/O port control part 4 is added as a software constitution together with a hardware 5. Here a certain task 1 of a V86 type, for example, desires to carry out directly an input/output instruction as shown by a line A or wants to use one of drivers 3 as shown by a line B. In such a case, both lines A and B receive the control through the part 4 and the allowed one of both lines can use the hardware 5.
JP18441887A 1987-07-23 1987-07-23 Exclusive control system for input/output port Pending JPS6426961A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18441887A JPS6426961A (en) 1987-07-23 1987-07-23 Exclusive control system for input/output port

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18441887A JPS6426961A (en) 1987-07-23 1987-07-23 Exclusive control system for input/output port

Publications (1)

Publication Number Publication Date
JPS6426961A true JPS6426961A (en) 1989-01-30

Family

ID=16152817

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18441887A Pending JPS6426961A (en) 1987-07-23 1987-07-23 Exclusive control system for input/output port

Country Status (1)

Country Link
JP (1) JPS6426961A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0651329A2 (en) * 1993-10-28 1995-05-03 Microsoft Corporation Frame buffering of network packets

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0651329A2 (en) * 1993-10-28 1995-05-03 Microsoft Corporation Frame buffering of network packets
EP0651329A3 (en) * 1993-10-28 1995-08-30 Microsoft Corp Frame buffering of network packets.
US5826041A (en) * 1993-10-28 1998-10-20 Microsoft Corporation Method and system for buffering network packets that are transferred between a V86 mode network driver and a protected mode computer program

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