JPS57209545A - Data processing system - Google Patents

Data processing system

Info

Publication number
JPS57209545A
JPS57209545A JP56093947A JP9394781A JPS57209545A JP S57209545 A JPS57209545 A JP S57209545A JP 56093947 A JP56093947 A JP 56093947A JP 9394781 A JP9394781 A JP 9394781A JP S57209545 A JPS57209545 A JP S57209545A
Authority
JP
Japan
Prior art keywords
address
register
instruction
source data
local storage
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
JP56093947A
Other languages
Japanese (ja)
Other versions
JPS6138497B2 (en
Inventor
Matsuo Shironaga
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 JP56093947A priority Critical patent/JPS57209545A/en
Publication of JPS57209545A publication Critical patent/JPS57209545A/en
Publication of JPS6138497B2 publication Critical patent/JPS6138497B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F9/00—Arrangements for program control, e.g. control units
    • G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
    • G06F9/22—Microcontrol or microprogram arrangements

Abstract

PURPOSE:To decrease the cost of device without the need for registers exclusive use for source data, by providing a storage area of the source data for the re- execution of instruction on an instruction memory. CONSTITUTION:The content of an address section 1-3 is set to an address register 3 and a local storage 4 is accessed. A value of a register 2 possible for renewal is set to the address register 3, an instruction re-execution data area 4-2 at the address 24 in the local storage 4 is accessed, and the content of a data register 5 is written. Thus, in re-executing an instruction after storing a source data to the local storage 4, the source data is read out by accessing addresses from the address 24 of the local storage 4 to an address having a value smaller than the present value of the register 2 by (1) with the value of the address section 1-3 of an instruction register 1 to store the source data again.
JP56093947A 1981-06-19 1981-06-19 Data processing system Granted JPS57209545A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56093947A JPS57209545A (en) 1981-06-19 1981-06-19 Data processing system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56093947A JPS57209545A (en) 1981-06-19 1981-06-19 Data processing system

Publications (2)

Publication Number Publication Date
JPS57209545A true JPS57209545A (en) 1982-12-22
JPS6138497B2 JPS6138497B2 (en) 1986-08-29

Family

ID=14096626

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56093947A Granted JPS57209545A (en) 1981-06-19 1981-06-19 Data processing system

Country Status (1)

Country Link
JP (1) JPS57209545A (en)

Also Published As

Publication number Publication date
JPS6138497B2 (en) 1986-08-29

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