JPS56147256A - Program branch system for mini electronic computer - Google Patents

Program branch system for mini electronic computer

Info

Publication number
JPS56147256A
JPS56147256A JP5008780A JP5008780A JPS56147256A JP S56147256 A JPS56147256 A JP S56147256A JP 5008780 A JP5008780 A JP 5008780A JP 5008780 A JP5008780 A JP 5008780A JP S56147256 A JPS56147256 A JP S56147256A
Authority
JP
Japan
Prior art keywords
program
instruction
address
branch system
memory
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
JP5008780A
Other languages
Japanese (ja)
Other versions
JPS6338732B2 (en
Inventor
Junichi Yoshida
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.)
Casio Computer Co Ltd
Original Assignee
Casio Computer Co 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 Casio Computer Co Ltd filed Critical Casio Computer Co Ltd
Priority to JP5008780A priority Critical patent/JPS56147256A/en
Publication of JPS56147256A publication Critical patent/JPS56147256A/en
Publication of JPS6338732B2 publication Critical patent/JPS6338732B2/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
    • G06F9/30—Arrangements for executing machine instructions, e.g. instruction decode
    • G06F9/30003—Arrangements for executing specific machine instructions
    • G06F9/3005—Arrangements for executing specific machine instructions to perform operations for flow control
    • G06F9/30058—Conditional branch instructions

Abstract

PURPOSE:To generate a program provided with generality, by adding a return instruction or an end instruction to the branch instruction to obtain a branch system of a program where conditional jump is executed without using GO TO sentence, a label, etc. CONSTITUTION:When a program is written in P1, contents of program memory 5 are read out to instruction decoder 6 successively from address O by operating the execution key after the operation of the P1 key. This decoder 6 transmits signal J to operating device 3 when decoding the decision instruction, and device 3 decides whether contents of a prescribed register in main memory 2 are ''0'' or not. If the answer is ''YES'' as the result, signal (a) is output, and program counter 7 is reset to designate address 0 of memory 5 again. The control is not returned to the start address but also branched to the end step on a basis of the decision result.
JP5008780A 1980-04-15 1980-04-15 Program branch system for mini electronic computer Granted JPS56147256A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5008780A JPS56147256A (en) 1980-04-15 1980-04-15 Program branch system for mini electronic computer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5008780A JPS56147256A (en) 1980-04-15 1980-04-15 Program branch system for mini electronic computer

Publications (2)

Publication Number Publication Date
JPS56147256A true JPS56147256A (en) 1981-11-16
JPS6338732B2 JPS6338732B2 (en) 1988-08-02

Family

ID=12849245

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5008780A Granted JPS56147256A (en) 1980-04-15 1980-04-15 Program branch system for mini electronic computer

Country Status (1)

Country Link
JP (1) JPS56147256A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60225939A (en) * 1984-04-25 1985-11-11 Sony Corp Electronic calculating device
JPS62150434A (en) * 1985-12-24 1987-07-04 Nippon Denso Co Ltd Loop control type data processor
JPS63298632A (en) * 1987-05-29 1988-12-06 Matsushita Electric Ind Co Ltd Microprocessor

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5439542A (en) * 1977-09-05 1979-03-27 Hitachi Ltd Microprogram control system

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5439542A (en) * 1977-09-05 1979-03-27 Hitachi Ltd Microprogram control system

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60225939A (en) * 1984-04-25 1985-11-11 Sony Corp Electronic calculating device
JPS62150434A (en) * 1985-12-24 1987-07-04 Nippon Denso Co Ltd Loop control type data processor
JPH0578856B2 (en) * 1985-12-24 1993-10-29 Nippon Denso Co
JPS63298632A (en) * 1987-05-29 1988-12-06 Matsushita Electric Ind Co Ltd Microprocessor

Also Published As

Publication number Publication date
JPS6338732B2 (en) 1988-08-02

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