JPS5475965A - Pipeline control check system - Google Patents

Pipeline control check system

Info

Publication number
JPS5475965A
JPS5475965A JP14340677A JP14340677A JPS5475965A JP S5475965 A JPS5475965 A JP S5475965A JP 14340677 A JP14340677 A JP 14340677A JP 14340677 A JP14340677 A JP 14340677A JP S5475965 A JPS5475965 A JP S5475965A
Authority
JP
Japan
Prior art keywords
discrimination
codes
control part
synchronism
pipeline
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
JP14340677A
Other languages
Japanese (ja)
Other versions
JPS5626871B2 (en
Inventor
Yasuo Matsumoto
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 JP14340677A priority Critical patent/JPS5475965A/en
Publication of JPS5475965A publication Critical patent/JPS5475965A/en
Publication of JPS5626871B2 publication Critical patent/JPS5626871B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Advance Control (AREA)
  • Complex Calculations (AREA)

Abstract

PURPOSE: To detect simply the synchronism slippage between an arithmetic part and a control part by inputting discrimination codes, which discriminate instructions belonging to processing steps, to the pipeline arithmetic part and the control part of it respectively and comparing discrimination codes outputted from both parts with each other.
CONSTITUTION: Control part 1 and pipeline arithemtic part 2 are provided with discrimination code registers 5A to 5D and 6B to 6D respectively, and discrimination codes iD1, iD2... to discriminate instructions belonging to each processing step are inputted to discrimination code registers from discrimination code generator 4 in respect to each processing step. According as processing steps are advanced, the execution of instructions is shifted, and simultaneously, discrimination codes are shifted. In transmitting the calculation result, which is outputted from the pipeline arithmetic part, to the external, discrimination code iD1 of register 6D in pipeline arithmetic part 2 and discrimination code iD1 of register 5D in control part 1 are compared with each other in comparator circuit 13. Then, synchronism is normal when both codes agree with each other, and both codes do not agree with each other to output an error signal from circuit 13 in case of synchronism slippage.
COPYRIGHT: (C)1979,JPO&Japio
JP14340677A 1977-11-30 1977-11-30 Pipeline control check system Granted JPS5475965A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14340677A JPS5475965A (en) 1977-11-30 1977-11-30 Pipeline control check system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14340677A JPS5475965A (en) 1977-11-30 1977-11-30 Pipeline control check system

Publications (2)

Publication Number Publication Date
JPS5475965A true JPS5475965A (en) 1979-06-18
JPS5626871B2 JPS5626871B2 (en) 1981-06-22

Family

ID=15338021

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14340677A Granted JPS5475965A (en) 1977-11-30 1977-11-30 Pipeline control check system

Country Status (1)

Country Link
JP (1) JPS5475965A (en)

Also Published As

Publication number Publication date
JPS5626871B2 (en) 1981-06-22

Similar Documents

Publication Publication Date Title
EP0366331A3 (en) System and method for error detection in the result of an arithmetic operation
EP0262674A3 (en) Microcomputer having z-flag capable of detecting coincidence at high speed
JPS5475965A (en) Pipeline control check system
JPS63110840A (en) Synchronization detection circuit
JPS57137977A (en) Similarity degree comparing circuit of character recognizing device
JPS57212549A (en) Information processing device
JPS54124947A (en) Error check system of arithmetic circuit
JPS5435626A (en) Keyboard encoder
JPS5484447A (en) Interruption detector circuit
JPS5457919A (en) Generation system for memory circuit protective alarm
JPS5647846A (en) Parity check system
JPS56129451A (en) Communication controller
JPS5553940A (en) Error detection system
JPS57193809A (en) Generator for quadric curve signal
JPS5576472A (en) Error display system
JPS5621250A (en) Instruction retrial system
JPS5532186A (en) Data processing device
JPS57137916A (en) Computer for car
JPS5730039A (en) Error processing system
JPS5488748A (en) Error detection system
JPS5652443A (en) Parity addition system
JPS5552155A (en) Check system of arithmetic logical operation unit
JPS543444A (en) Error detection system
GB862281A (en) Parity bit generator
JPS5478944A (en) Error detection and correction unit