JPS57168355A - Operation sequence storing device of microprogram - Google Patents

Operation sequence storing device of microprogram

Info

Publication number
JPS57168355A
JPS57168355A JP56048599A JP4859981A JPS57168355A JP S57168355 A JPS57168355 A JP S57168355A JP 56048599 A JP56048599 A JP 56048599A JP 4859981 A JP4859981 A JP 4859981A JP S57168355 A JPS57168355 A JP S57168355A
Authority
JP
Japan
Prior art keywords
microprogram
memory
routine
address
circuit
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
JP56048599A
Other languages
Japanese (ja)
Inventor
Yoichi Iijima
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 JP56048599A priority Critical patent/JPS57168355A/en
Publication of JPS57168355A publication Critical patent/JPS57168355A/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
    • G06F11/36—Preventing errors by testing or debugging software

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Quality & Reliability (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Debugging And Monitoring (AREA)

Abstract

PURPOSE:To clarify history and step of a change of a routine, by storing an operated routine of a program in a memory, and reading out data in its memory. CONSTITUTION:An operation decoding circuit 70 is connected to an output of an operation register 50 for inputting and latching a readout signal of a control memory 40 storing a microprogram, decodes a readout microprogram, and discriminates whether there is a change in a routine or not. Subsequently, an address generating circuit 80 receives an output of the circuit 70, and changes an address. Also, this device is provided with a monitoring memory 90 which receives a microprogram address input data of the memory 40, as write data, and stores only the head microprogram address input data for changing the routine, in an address designated by output data of the circuit 80. In this way, the history of operation of the microprogram is recorded.
JP56048599A 1981-03-31 1981-03-31 Operation sequence storing device of microprogram Pending JPS57168355A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56048599A JPS57168355A (en) 1981-03-31 1981-03-31 Operation sequence storing device of microprogram

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56048599A JPS57168355A (en) 1981-03-31 1981-03-31 Operation sequence storing device of microprogram

Publications (1)

Publication Number Publication Date
JPS57168355A true JPS57168355A (en) 1982-10-16

Family

ID=12807866

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56048599A Pending JPS57168355A (en) 1981-03-31 1981-03-31 Operation sequence storing device of microprogram

Country Status (1)

Country Link
JP (1) JPS57168355A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5211843A (en) * 1975-07-18 1977-01-29 Hitachi Ltd Microprogram address tracing unit
JPS5528182A (en) * 1978-08-22 1980-02-28 Nec Corp Information processing unit

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5211843A (en) * 1975-07-18 1977-01-29 Hitachi Ltd Microprogram address tracing unit
JPS5528182A (en) * 1978-08-22 1980-02-28 Nec Corp Information processing unit

Similar Documents

Publication Publication Date Title
JPS57168355A (en) Operation sequence storing device of microprogram
JPS5447438A (en) Control system for scratch memory
JPS55134442A (en) Data transfer unit
JPS57130150A (en) Register control system
JPS5710853A (en) Memory device
JPS57189229A (en) Recording and controlling system for career information
JPS5793457A (en) Microprogram controller
JPS575152A (en) Readout control system of control storage device
JPS5699550A (en) Information processing unit
JPS56152047A (en) Microprogram controller
KR910010299A (en) Bit operation processing circuit of programmable controller
JPS55115159A (en) Information processing unit
JPS5737795A (en) Read-only memory element
JPS57114945A (en) Microprogram controller
JPS5538668A (en) Memory unit
JPS5719869A (en) Input information processor
JPS56152051A (en) Asynchronous microprogram control system
JPS5771054A (en) Microprogram controller
JPS5528142A (en) Control unit
JPS56101247A (en) Audio output device
JPS57197653A (en) Control device of microprogram
JPS57191759A (en) Microprogram tracing system
JPS56105546A (en) Memory mapping circuit
JPS5682950A (en) Microprogram controlling device
JPS57203141A (en) Method and device for controlling microprogram