JPS57132257A - Data processor - Google Patents

Data processor

Info

Publication number
JPS57132257A
JPS57132257A JP57000321A JP32182A JPS57132257A JP S57132257 A JPS57132257 A JP S57132257A JP 57000321 A JP57000321 A JP 57000321A JP 32182 A JP32182 A JP 32182A JP S57132257 A JPS57132257 A JP S57132257A
Authority
JP
Japan
Prior art keywords
register
address
order
storage part
bits
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
JP57000321A
Other languages
Japanese (ja)
Other versions
JPS623466B2 (en
Inventor
Kenji Hayashi
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 JP57000321A priority Critical patent/JPS57132257A/en
Publication of JPS57132257A publication Critical patent/JPS57132257A/en
Publication of JPS623466B2 publication Critical patent/JPS623466B2/ja
Granted 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
    • G06F12/08—Addressing or allocation; Relocation in hierarchically structured memory systems, e.g. virtual memory systems
    • G06F12/10—Address translation

Landscapes

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

Abstract

PURPOSE:To meet a request for increase in memory capacity by mapping logical address space on an actual address space in a virtual storage type data processor. CONSTITUTION:When memory reference is indicated, the high-order 12 bits of a logical address register 13 and the contents of the logical address storage part 14-1 of a conversion table buffer register 14 are compared independently by comparing circuits 15-1-15-4 and when a coincidence signal is detected, a corresponding actual address storage part 14-2 is read and then set at the high- order 14 bit positions of an actual address register 16 through an OR circuit 15 to be used for the addressing of a main storage device. When the coincidence signal is not detected, on the other hand, a conversion table address obtained in a register 12 is sent to the main storage device via an OR circuit 17 to read the high-order 14 bits of an actual address; and they are stored in the actual address storage part 14-2 and at the same time, the high-order 12 bits of a register 13 are stored in the address storage part 14-1.
JP57000321A 1982-01-06 1982-01-06 Data processor Granted JPS57132257A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP57000321A JPS57132257A (en) 1982-01-06 1982-01-06 Data processor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP57000321A JPS57132257A (en) 1982-01-06 1982-01-06 Data processor

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
JP6735574A Division JPS5615066B2 (en) 1974-06-13 1974-06-13

Publications (2)

Publication Number Publication Date
JPS57132257A true JPS57132257A (en) 1982-08-16
JPS623466B2 JPS623466B2 (en) 1987-01-24

Family

ID=11470639

Family Applications (1)

Application Number Title Priority Date Filing Date
JP57000321A Granted JPS57132257A (en) 1982-01-06 1982-01-06 Data processor

Country Status (1)

Country Link
JP (1) JPS57132257A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20210213764A1 (en) * 2018-06-22 2021-07-15 Mitsubishi Electric Corporation Thermal printer

Also Published As

Publication number Publication date
JPS623466B2 (en) 1987-01-24

Similar Documents

Publication Publication Date Title
GB1413739A (en) Address conversion units and data processing systems embodying the same
JPH0814803B2 (en) Address translation method
JPS5530727A (en) Information processor
JPS57132257A (en) Data processor
JPS5724082A (en) Computer system
JPS57117056A (en) Microcomputer device
JPS5688524A (en) Channel controller
JPS55105884A (en) Address conversion device
JPS5724083A (en) Buffer memory
JPS5644178A (en) Buffer memory control system
JPS558628A (en) Data processing system
JPS5733472A (en) Memory access control system
JPS6032221B2 (en) Address translation method
JPS5533282A (en) Buffer control system
JPS5562576A (en) Information processing unit with address conversion function
JPS57212678A (en) Buffer storage device
JPS55105761A (en) Address conversion system
JPS5564693A (en) Buffer memory unit
JPS55117780A (en) Buffer memory unit
JPS5786180A (en) Memory device having address converting mechanism
JPS5448128A (en) Buffer memory unit
JPS6478343A (en) Address converting device
JPS54142022A (en) Information processor
JPS59132482A (en) Information processor
JPS56159896A (en) Data processing system