JPS5654550A - Information processor - Google Patents

Information processor

Info

Publication number
JPS5654550A
JPS5654550A JP13080279A JP13080279A JPS5654550A JP S5654550 A JPS5654550 A JP S5654550A JP 13080279 A JP13080279 A JP 13080279A JP 13080279 A JP13080279 A JP 13080279A JP S5654550 A JPS5654550 A JP S5654550A
Authority
JP
Japan
Prior art keywords
instruction
loop
registers
control parts
program loop
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
JP13080279A
Other languages
Japanese (ja)
Inventor
Michihiro Hirai
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 JP13080279A priority Critical patent/JPS5654550A/en
Publication of JPS5654550A publication Critical patent/JPS5654550A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To simplify software by providing an information processor for pipeline control with a hardward means of detecting a program loop, by forming a closed loop of an instruction queue that corresponds to a stage when the loop is detected, and by executing the program loop by an instruction loop.
CONSTITUTION: Instruction buffer registers 11W14 as an instruction queue consists of instruction code control parts 11aW14a and stage control parts 11bW14b, and information required for pipeline control is held in control parts 116W14b except instruction codes of instruction words. Further, an instruction word is transferred from the position of memory 8 indicated by instruction counter 1 to instruction readout register 9 and information on addresses of an instruction word and branch instruction generated by decoder 10 is applied to register 9, whose output is applied to registers 11W14 to detect a program loop. Then when the loop is detected, registers 1W14 are made into a closed loop and the program loop is executed by execution unit 19 according to the instruction loop, thereby simplifying the software.
COPYRIGHT: (C)1981,JPO&Japio
JP13080279A 1979-10-12 1979-10-12 Information processor Pending JPS5654550A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13080279A JPS5654550A (en) 1979-10-12 1979-10-12 Information processor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13080279A JPS5654550A (en) 1979-10-12 1979-10-12 Information processor

Publications (1)

Publication Number Publication Date
JPS5654550A true JPS5654550A (en) 1981-05-14

Family

ID=15043043

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13080279A Pending JPS5654550A (en) 1979-10-12 1979-10-12 Information processor

Country Status (1)

Country Link
JP (1) JPS5654550A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60196498A (en) * 1984-03-21 1985-10-04 Shinmikuni Kikai Seisakusho:Kk Carburettor for liquefied petroleum gas
WO1998036351A1 (en) * 1997-02-17 1998-08-20 Hitachi, Ltd. Data processor
CN102968293A (en) * 2012-11-28 2013-03-13 中国人民解放军国防科学技术大学 Dynamic detection and execution method of program loop code based on instruction queue

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60196498A (en) * 1984-03-21 1985-10-04 Shinmikuni Kikai Seisakusho:Kk Carburettor for liquefied petroleum gas
WO1998036351A1 (en) * 1997-02-17 1998-08-20 Hitachi, Ltd. Data processor
US6505295B1 (en) 1997-02-17 2003-01-07 Hitachi, Ltd. Data processor
US7080240B2 (en) 1997-02-17 2006-07-18 Hitachi, Ltd. Data processing apparatus
CN102968293A (en) * 2012-11-28 2013-03-13 中国人民解放军国防科学技术大学 Dynamic detection and execution method of program loop code based on instruction queue

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