JPS5356932A - Access system of main memory expansion unit - Google Patents

Access system of main memory expansion unit

Info

Publication number
JPS5356932A
JPS5356932A JP13049476A JP13049476A JPS5356932A JP S5356932 A JPS5356932 A JP S5356932A JP 13049476 A JP13049476 A JP 13049476A JP 13049476 A JP13049476 A JP 13049476A JP S5356932 A JPS5356932 A JP S5356932A
Authority
JP
Japan
Prior art keywords
main memory
access system
expansion unit
memory expansion
facilitate
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
Application number
JP13049476A
Other languages
Japanese (ja)
Other versions
JPS5850B2 (en
Inventor
Masumi Imai
Yoshiki Kobayashi
Hideo Maejima
Yasushi Fukunaga
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP51130494A priority Critical patent/JPS5850B2/en
Publication of JPS5356932A publication Critical patent/JPS5356932A/en
Publication of JPS5850B2 publication Critical patent/JPS5850B2/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F12/00—Accessing, addressing or allocating within memory systems or architectures
    • G06F12/02—Addressing or allocation; Relocation
    • G06F12/0223—User address space allocation, e.g. contiguous or non contiguous base addressing
    • G06F12/0292—User address space allocation, e.g. contiguous or non contiguous base addressing using tables or multilevel address translation means

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Executing Machine-Instructions (AREA)
  • Memory System (AREA)
  • Memory System Of A Hierarchy Structure (AREA)

Abstract

PURPOSE:To facilitate the data reference across plural logical spaces obtained by the expanded main memory.
JP51130494A 1976-11-01 1976-11-01 Main memory expansion unit access method Expired JPS5850B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP51130494A JPS5850B2 (en) 1976-11-01 1976-11-01 Main memory expansion unit access method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP51130494A JPS5850B2 (en) 1976-11-01 1976-11-01 Main memory expansion unit access method

Publications (2)

Publication Number Publication Date
JPS5356932A true JPS5356932A (en) 1978-05-23
JPS5850B2 JPS5850B2 (en) 1983-01-05

Family

ID=15035594

Family Applications (1)

Application Number Title Priority Date Filing Date
JP51130494A Expired JPS5850B2 (en) 1976-11-01 1976-11-01 Main memory expansion unit access method

Country Status (1)

Country Link
JP (1) JPS5850B2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5697165A (en) * 1979-12-29 1981-08-05 Fujitsu Ltd Control system for memory usage
JPS63305443A (en) * 1987-06-08 1988-12-13 Hitachi Ltd Method for managing virtual space group
JPH01163834A (en) * 1987-12-21 1989-06-28 Hitachi Ltd Address modifying system for instruction word
JPH01228038A (en) * 1988-02-10 1989-09-12 Internatl Business Mach Corp <Ibm> Access/register conversion mechanism

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5697165A (en) * 1979-12-29 1981-08-05 Fujitsu Ltd Control system for memory usage
JPS63305443A (en) * 1987-06-08 1988-12-13 Hitachi Ltd Method for managing virtual space group
JPH01163834A (en) * 1987-12-21 1989-06-28 Hitachi Ltd Address modifying system for instruction word
JPH01228038A (en) * 1988-02-10 1989-09-12 Internatl Business Mach Corp <Ibm> Access/register conversion mechanism

Also Published As

Publication number Publication date
JPS5850B2 (en) 1983-01-05

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