JPS6433658A - Computer system - Google Patents
Computer systemInfo
- Publication number
- JPS6433658A JPS6433658A JP18875487A JP18875487A JPS6433658A JP S6433658 A JPS6433658 A JP S6433658A JP 18875487 A JP18875487 A JP 18875487A JP 18875487 A JP18875487 A JP 18875487A JP S6433658 A JPS6433658 A JP S6433658A
- Authority
- JP
- Japan
- Prior art keywords
- cpu
- status
- command block
- interface
- memory part
- 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
Landscapes
- Information Transfer Systems (AREA)
Abstract
PURPOSE:To reduce the load of a system bus and to simplify the CPU software structure by checking the status part included in a command block of a memory part so that a CPU knows the status of an input/output equipment and at the same time reading the command block out of a memory part of the CPU via a bus interface. CONSTITUTION:A CPU 1 delivers the address of a command block stored in a memory part to a bus interface 4. The interface 4 gives an access to the memory part of the CPU 1 based on said address and supplies the contents of the command block to perform the processing to a controller 3. Then the interface 4 writes the status obtained at that time point into the status part of the command block in the memory part of the CPU 1. While the CPU 1 delivers an address to the interface 4 and checks said status part to carry out the necessary processing in response to said checking result. Thus it is possible to reduce the load of a system bus and to simplify the CPU software structure.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP18875487A JPS6433658A (en) | 1987-07-30 | 1987-07-30 | Computer system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP18875487A JPS6433658A (en) | 1987-07-30 | 1987-07-30 | Computer system |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6433658A true JPS6433658A (en) | 1989-02-03 |
Family
ID=16229184
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP18875487A Pending JPS6433658A (en) | 1987-07-30 | 1987-07-30 | Computer system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6433658A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5582414A (en) * | 1993-06-07 | 1996-12-10 | Teikoku Piston Ring Co., Ltd. | Sliding member and method for manufacturing the same |
US5618590A (en) * | 1991-09-20 | 1997-04-08 | Teikoku Piston Ring Co., Ltd. | Process for manufacturing a piston ring |
JPH11184800A (en) * | 1997-12-22 | 1999-07-09 | Konica Corp | Data processor and system constitution method |
JPH11184801A (en) * | 1997-12-22 | 1999-07-09 | Konica Corp | Interface device and data processing system |
JPH11187230A (en) * | 1997-12-22 | 1999-07-09 | Konica Corp | Image forming device |
-
1987
- 1987-07-30 JP JP18875487A patent/JPS6433658A/en active Pending
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5618590A (en) * | 1991-09-20 | 1997-04-08 | Teikoku Piston Ring Co., Ltd. | Process for manufacturing a piston ring |
US5582414A (en) * | 1993-06-07 | 1996-12-10 | Teikoku Piston Ring Co., Ltd. | Sliding member and method for manufacturing the same |
JPH11184800A (en) * | 1997-12-22 | 1999-07-09 | Konica Corp | Data processor and system constitution method |
JPH11184801A (en) * | 1997-12-22 | 1999-07-09 | Konica Corp | Interface device and data processing system |
JPH11187230A (en) * | 1997-12-22 | 1999-07-09 | Konica Corp | Image forming device |
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