JPS57755A - Information processor - Google Patents

Information processor

Info

Publication number
JPS57755A
JPS57755A JP7395880A JP7395880A JPS57755A JP S57755 A JPS57755 A JP S57755A JP 7395880 A JP7395880 A JP 7395880A JP 7395880 A JP7395880 A JP 7395880A JP S57755 A JPS57755 A JP S57755A
Authority
JP
Japan
Prior art keywords
branch
unit
processing
contents
comparison
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
JP7395880A
Other languages
Japanese (ja)
Other versions
JPS6023378B2 (en
Inventor
Akira Fujita
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 JP7395880A priority Critical patent/JPS6023378B2/en
Publication of JPS57755A publication Critical patent/JPS57755A/en
Publication of JPS6023378B2 publication Critical patent/JPS6023378B2/en
Expired legal-status Critical Current

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  • Advance Control (AREA)

Abstract

PURPOSE: To increase a processing speed when a branch is not implemented, by comparing data while transferring the data to an arithmetic unit in two-machine cycles by a device which performs overlapping processing for instructions.
CONSTITUTION: The contents of a general register GR indicated by the part R1 of a branch instruction in an instruction register 107 and those of the GR indicated by the part R3 are added by an address adder 122 and while the addition result and the contents of the GR by the R3 or R3+1 are sent to a unit E, they are compared by a comparing circuit 130 to judge by a branch discriminating circuit 131 whether a branch should be implemented or not. Thus, the processing is speeded by one cycle in comparison with the case of the discrimination between the implement and nonimplement of the branch by performing the addition and comparison by the E unit.
COPYRIGHT: (C)1982,JPO&Japio
JP7395880A 1980-06-02 1980-06-02 information processing equipment Expired JPS6023378B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7395880A JPS6023378B2 (en) 1980-06-02 1980-06-02 information processing equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7395880A JPS6023378B2 (en) 1980-06-02 1980-06-02 information processing equipment

Publications (2)

Publication Number Publication Date
JPS57755A true JPS57755A (en) 1982-01-05
JPS6023378B2 JPS6023378B2 (en) 1985-06-07

Family

ID=13533092

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7395880A Expired JPS6023378B2 (en) 1980-06-02 1980-06-02 information processing equipment

Country Status (1)

Country Link
JP (1) JPS6023378B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1985002280A1 (en) * 1983-11-16 1985-05-23 Fujitsu Limited Method of controlling branching
JPS61253541A (en) * 1985-05-07 1986-11-11 Hitachi Ltd Instruction processor
JPS62103736A (en) * 1985-10-31 1987-05-14 Fujitsu Ltd Branch control system

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1985002280A1 (en) * 1983-11-16 1985-05-23 Fujitsu Limited Method of controlling branching
JPS60107141A (en) * 1983-11-16 1985-06-12 Fujitsu Ltd Branch control system
EP0162929A1 (en) * 1983-11-16 1985-12-04 Fujitsu Limited Method of controlling branching
EP0162929B1 (en) * 1983-11-16 1991-09-25 Fujitsu Limited Method of controlling branching
JPS61253541A (en) * 1985-05-07 1986-11-11 Hitachi Ltd Instruction processor
JPS62103736A (en) * 1985-10-31 1987-05-14 Fujitsu Ltd Branch control system

Also Published As

Publication number Publication date
JPS6023378B2 (en) 1985-06-07

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