JPS6426961A - Exclusive control system for input/output port - Google Patents
Exclusive control system for input/output portInfo
- 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
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.
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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0651329A2 (en) * | 1993-10-28 | 1995-05-03 | Microsoft Corporation | Frame buffering of network packets |
-
1987
- 1987-07-23 JP JP18441887A patent/JPS6426961A/en active Pending
Cited By (3)
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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