JPS5783857A - Microprogram control device - Google Patents

Microprogram control device

Info

Publication number
JPS5783857A
JPS5783857A JP55158792A JP15879280A JPS5783857A JP S5783857 A JPS5783857 A JP S5783857A JP 55158792 A JP55158792 A JP 55158792A JP 15879280 A JP15879280 A JP 15879280A JP S5783857 A JPS5783857 A JP S5783857A
Authority
JP
Japan
Prior art keywords
data
register
bit
bus
control 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.)
Pending
Application number
JP55158792A
Other languages
Japanese (ja)
Inventor
Tsuneo Shimizu
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP55158792A priority Critical patent/JPS5783857A/en
Publication of JPS5783857A publication Critical patent/JPS5783857A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00—Error detection; Error correction; Monitoring
    • G06F11/22—Detection or location of defective computer hardware by testing during standby operation or during idle time, e.g. start-up testing

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Quality & Reliability (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Test And Diagnosis Of Digital Computers (AREA)

Abstract

PURPOSE:To generate one-word components of diagnostic data by a micro instruction of one step, by providing a part of control storage words in a circuit to be diagnosed for micro diagnosis. CONSTITUTION:One control storage word is read out from a control storage 101 into a control storage read register 102; and if set data is indicated by the bit 3, the output of an operation circuit 111 is selected by a selecting circuit 106 and appears on a common data bus 112. When a register 102 is set to ''1'', inversion of input data 113 is indicated in the operation mode of the circuit 111. Further, when the bit 10 is designated to ''1'', the output of a gate 103 becomes ''1'', and data on the bus 112 is set to an instruction register 107. Similarly, data on the bus 112 is set to a data input register 108 if the bit 11 of the register 102 is ''1'', and data on the bus 112 is set to a memory error register 109 if the bit 12 of the register 102 is ''1''.
JP55158792A 1980-11-13 1980-11-13 Microprogram control device Pending JPS5783857A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55158792A JPS5783857A (en) 1980-11-13 1980-11-13 Microprogram control device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55158792A JPS5783857A (en) 1980-11-13 1980-11-13 Microprogram control device

Publications (1)

Publication Number Publication Date
JPS5783857A true JPS5783857A (en) 1982-05-25

Family

ID=15679435

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55158792A Pending JPS5783857A (en) 1980-11-13 1980-11-13 Microprogram control device

Country Status (1)

Country Link
JP (1) JPS5783857A (en)

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