JPS5635250A - Microprogram control device - Google Patents

Microprogram control device

Info

Publication number
JPS5635250A
JPS5635250A JP11019579A JP11019579A JPS5635250A JP S5635250 A JPS5635250 A JP S5635250A JP 11019579 A JP11019579 A JP 11019579A JP 11019579 A JP11019579 A JP 11019579A JP S5635250 A JPS5635250 A JP S5635250A
Authority
JP
Japan
Prior art keywords
result
register
stored
circuit
contents
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
JP11019579A
Other languages
Japanese (ja)
Inventor
Koichi Igari
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 JP11019579A priority Critical patent/JPS5635250A/en
Publication of JPS5635250A publication Critical patent/JPS5635250A/en
Pending legal-status Critical Current

Links

Landscapes

  • Executing Machine-Instructions (AREA)
  • Test And Diagnosis Of Digital Computers (AREA)

Abstract

PURPOSE: To ensure a highly reliable control for the microprogram, by reading out the result of storage immediately after storing the result of operation and then comparing the result of storage with the result of operation which is held previously.
CONSTITUTION: The contents of the general-purpose register 1-1, is added to the contents of the generral-purpose register 1-2, and the result of this addition is stored in the register 1-2. In this case, the selecting circuit 2 selects the registor 1-1 for one cycle of the machine lock, and the selecting circuit 3 selects the register 1-2 respectively. And both the contents of the registers 1-1 and 1-2 are led to the arithmetic circuit 4, and the result of the operation and others are stored into the registers 5 and 1-2 each. Furthermore, a comparison is given between the result of operation of the register 1-2 stored in the circuit 3 and the output given from the register 5 of selection circuit 6. Thus a confirmation is given whether the result of operation could be stored correctly into the general- purpose registers. In such way, a highly reliable control is possible for the microprogram.
COPYRIGHT: (C)1981,JPO&Japio
JP11019579A 1979-08-31 1979-08-31 Microprogram control device Pending JPS5635250A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11019579A JPS5635250A (en) 1979-08-31 1979-08-31 Microprogram control device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11019579A JPS5635250A (en) 1979-08-31 1979-08-31 Microprogram control device

Publications (1)

Publication Number Publication Date
JPS5635250A true JPS5635250A (en) 1981-04-07

Family

ID=14529451

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11019579A Pending JPS5635250A (en) 1979-08-31 1979-08-31 Microprogram control device

Country Status (1)

Country Link
JP (1) JPS5635250A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01265422A (en) * 1988-04-15 1989-10-23 Meidensha Corp Vacuum interrupter

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01265422A (en) * 1988-04-15 1989-10-23 Meidensha Corp Vacuum interrupter

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