JPS5537618A - Memory controller - Google Patents
Memory controllerInfo
- Publication number
- JPS5537618A JPS5537618A JP10935678A JP10935678A JPS5537618A JP S5537618 A JPS5537618 A JP S5537618A JP 10935678 A JP10935678 A JP 10935678A JP 10935678 A JP10935678 A JP 10935678A JP S5537618 A JPS5537618 A JP S5537618A
- Authority
- JP
- Japan
- Prior art keywords
- data
- file
- stored
- address
- mem3
- 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 Retrieval, Db Structures And Fs Structures Therefor (AREA)
- Signal Processing For Digital Recording And Reproducing (AREA)
Abstract
PURPOSE: To improve processing time by allowing access to a file in case that re- access to the file is attained, read data agrees with stored data.
CONSTITUTION: According to assigned address FILN, file control part FC drives file FIL to read data in the corresponding address and then to store it in memories MEM1 and MEM2 and on the basis of the data stored in memory (MEM1), CPU generates new update data and store it in MEM3. To write data stored (MEM3) in FILN of FIL, CPU gives FC FILN as a write address. Then, the read data is compared with stored (MEM2) data read at the time of 1st access and when the both agree, AND gate A2 is opened to store data received from MEM3 into the address of retrieved FIL.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10935678A JPS5537618A (en) | 1978-09-06 | 1978-09-06 | Memory controller |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10935678A JPS5537618A (en) | 1978-09-06 | 1978-09-06 | Memory controller |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5537618A true JPS5537618A (en) | 1980-03-15 |
Family
ID=14508141
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP10935678A Pending JPS5537618A (en) | 1978-09-06 | 1978-09-06 | Memory controller |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5537618A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02165268A (en) * | 1988-12-20 | 1990-06-26 | Matsushita Electric Ind Co Ltd | Document preparing device |
JPH0340042A (en) * | 1989-07-06 | 1991-02-20 | Nec Corp | Multiple accessing device |
-
1978
- 1978-09-06 JP JP10935678A patent/JPS5537618A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02165268A (en) * | 1988-12-20 | 1990-06-26 | Matsushita Electric Ind Co Ltd | Document preparing device |
JPH0340042A (en) * | 1989-07-06 | 1991-02-20 | Nec Corp | Multiple accessing device |
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