JPS6410368A - Information processing unit - Google Patents
Information processing unitInfo
- Publication number
- JPS6410368A JPS6410368A JP16553987A JP16553987A JPS6410368A JP S6410368 A JPS6410368 A JP S6410368A JP 16553987 A JP16553987 A JP 16553987A JP 16553987 A JP16553987 A JP 16553987A JP S6410368 A JPS6410368 A JP S6410368A
- Authority
- JP
- Japan
- Prior art keywords
- input
- output
- processing unit
- access paths
- output device
- 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
Abstract
PURPOSE:To quicken the processing by providing mask information representing an accessible path from plural input/output processing units among plural access paths in the unit of input/output devices or in the unit of input/output device groups having the same access path. CONSTITUTION:A central processing unit 1, a main storage device 2, input/ output processing units 3, 4 and an input/output device 5 applying input/output operation are provided. Moreover, access paths 10, 11 from the input/output processing unit 3 to the input/output device 5 and access paths 20, 21 from the input/output processing unit 4 to the input/output device 5 are provided. When the input/output operation to the input/output device 5 is commanded by a program, the central processing unit 1 commands the input/output operation to the input/output processing unit 3. The input/output processing unit 3 decides an accessible path group among plural access paths to the input/output device 5 prepared in advance based on mask information representing the accessible path from the input/output processing unit 3, selects either of the access paths 10, 11 depending on an algorithm to initiate the input/output operation.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62165539A JP2570301B2 (en) | 1987-07-03 | 1987-07-03 | Information processing device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62165539A JP2570301B2 (en) | 1987-07-03 | 1987-07-03 | Information processing device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6410368A true JPS6410368A (en) | 1989-01-13 |
JP2570301B2 JP2570301B2 (en) | 1997-01-08 |
Family
ID=15814307
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62165539A Expired - Lifetime JP2570301B2 (en) | 1987-07-03 | 1987-07-03 | Information processing device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2570301B2 (en) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61125666A (en) * | 1984-11-21 | 1986-06-13 | Hitachi Ltd | Channel path selection system |
-
1987
- 1987-07-03 JP JP62165539A patent/JP2570301B2/en not_active Expired - Lifetime
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61125666A (en) * | 1984-11-21 | 1986-06-13 | Hitachi Ltd | Channel path selection system |
Also Published As
Publication number | Publication date |
---|---|
JP2570301B2 (en) | 1997-01-08 |
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