JPS57103200A - Memory package area compression system - Google Patents
Memory package area compression systemInfo
- Publication number
- JPS57103200A JPS57103200A JP55179852A JP17985280A JPS57103200A JP S57103200 A JPS57103200 A JP S57103200A JP 55179852 A JP55179852 A JP 55179852A JP 17985280 A JP17985280 A JP 17985280A JP S57103200 A JPS57103200 A JP S57103200A
- Authority
- JP
- Japan
- Prior art keywords
- memory
- space
- address
- code
- package
- 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
- Techniques For Improving Reliability Of Storages (AREA)
Abstract
PURPOSE: To perform address conversion in memory packaging and to improve memory package efficiency, by using memory constitution wherein memory space is divided into data space and code space.
CONSTITUTION: In memory constitution where memory space is divided into data space and code space, the maximum address of an area used as the data space is set 1 as a boundary value E, which is added 2 to the address Ac of the code part C of the code space; and the address AD of the data part E is used as an actual address as it is. Then, the package capacity (address) of a memory to be packaged is set 3 as a package limit value F, which is compared with said sum value and the result is discriminated 4; when the sum value exceeds the package limit value F, an interruption signal G showing that the memory is not packaged is generated when not, the sum value is used as the actual address A'c of the code part C.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55179852A JPS57103200A (en) | 1980-12-19 | 1980-12-19 | Memory package area compression system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55179852A JPS57103200A (en) | 1980-12-19 | 1980-12-19 | Memory package area compression system |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS57103200A true JPS57103200A (en) | 1982-06-26 |
Family
ID=16073033
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP55179852A Pending JPS57103200A (en) | 1980-12-19 | 1980-12-19 | Memory package area compression system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57103200A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6219950A (en) * | 1985-07-18 | 1987-01-28 | Fujitsu Ltd | Address error detection system for storage device |
JPH04308944A (en) * | 1991-04-05 | 1992-10-30 | Oki Electric Ind Co Ltd | Memory access system |
JPH0736774A (en) * | 1993-07-22 | 1995-02-07 | Matsushita Electric Ind Co Ltd | Memory managing device |
-
1980
- 1980-12-19 JP JP55179852A patent/JPS57103200A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6219950A (en) * | 1985-07-18 | 1987-01-28 | Fujitsu Ltd | Address error detection system for storage device |
JPH04308944A (en) * | 1991-04-05 | 1992-10-30 | Oki Electric Ind Co Ltd | Memory access system |
JPH0736774A (en) * | 1993-07-22 | 1995-02-07 | Matsushita Electric Ind Co Ltd | Memory managing device |
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