JPS556632A - Memory access control system - Google Patents
Memory access control systemInfo
- Publication number
- JPS556632A JPS556632A JP7905278A JP7905278A JPS556632A JP S556632 A JPS556632 A JP S556632A JP 7905278 A JP7905278 A JP 7905278A JP 7905278 A JP7905278 A JP 7905278A JP S556632 A JPS556632 A JP S556632A
- Authority
- JP
- Japan
- Prior art keywords
- cpu
- memory
- main memory
- memory access
- operands
- 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
Landscapes
- Memory System Of A Hierarchy Structure (AREA)
Abstract
PURPOSE: To improve the performance of a system by making it unneeded to lock a main memory by registering blocks of test and set instructions with operands newritten to a cash memory.
CONSTITUTION: Processors CPU1 and CPU2 and channel processor CHP attain access to main common memory MM via memory access controller MCU. Here, CPU1 and CPU2 are equipped with cash memories CM1 and CM2 respectively, which control the rewriting to the main memory by swapping. Namely, blocks of test and set instructions with their operands rewritten to memories CM1 and CM2 are registered to eliminate the need for locking the main memory MM. Consequently, the performance of the system can be improved.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7905278A JPS556632A (en) | 1978-06-29 | 1978-06-29 | Memory access control system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7905278A JPS556632A (en) | 1978-06-29 | 1978-06-29 | Memory access control system |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS556632A true JPS556632A (en) | 1980-01-18 |
JPS6112581B2 JPS6112581B2 (en) | 1986-04-09 |
Family
ID=13679116
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7905278A Granted JPS556632A (en) | 1978-06-29 | 1978-06-29 | Memory access control system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS556632A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5718778A (en) * | 1980-07-08 | 1982-01-30 | Mitsubishi Electric Corp | Liquid crystal composition |
JPS638849A (en) * | 1986-06-30 | 1988-01-14 | Fujitsu Ltd | Chche memory control system |
-
1978
- 1978-06-29 JP JP7905278A patent/JPS556632A/en active Granted
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5718778A (en) * | 1980-07-08 | 1982-01-30 | Mitsubishi Electric Corp | Liquid crystal composition |
JPS621635B2 (en) * | 1980-07-08 | 1987-01-14 | Mitsubishi Electric Corp | |
JPS638849A (en) * | 1986-06-30 | 1988-01-14 | Fujitsu Ltd | Chche memory control system |
Also Published As
Publication number | Publication date |
---|---|
JPS6112581B2 (en) | 1986-04-09 |
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