JPS57103200A - Memory package area compression system - Google Patents

Memory package area compression system

Info

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
Application number
JP55179852A
Other languages
Japanese (ja)
Inventor
Tomohito Shibata
Masaaki Kobayashi
Shigeru Hashimoto
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fujitsu Ltd
Original Assignee
Fujitsu Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP55179852A priority Critical patent/JPS57103200A/en
Publication of JPS57103200A publication Critical patent/JPS57103200A/en
Pending legal-status Critical Current

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
JP55179852A 1980-12-19 1980-12-19 Memory package area compression system Pending JPS57103200A (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (3)

* Cited by examiner, † Cited by third party
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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