JPS57191759A - Microprogram tracing system - Google Patents

Microprogram tracing system

Info

Publication number
JPS57191759A
JPS57191759A JP56074959A JP7495981A JPS57191759A JP S57191759 A JPS57191759 A JP S57191759A JP 56074959 A JP56074959 A JP 56074959A JP 7495981 A JP7495981 A JP 7495981A JP S57191759 A JPS57191759 A JP S57191759A
Authority
JP
Japan
Prior art keywords
control memory
microprogram
micro instruction
control
register
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
JP56074959A
Other languages
Japanese (ja)
Inventor
Hiroaki Kamibayashi
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP56074959A priority Critical patent/JPS57191759A/en
Publication of JPS57191759A publication Critical patent/JPS57191759A/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 facilitate the operation analysis, by providing a storage part for a microprogram. CONSTITUTION:A microprogram indicating control contents of an information processing device to be traced by a microprogram is stored in a control memory 1, and a microin struction is read out from the address designated by a control memory address register 3 under the control of a control memory read circuit 2 and is set to a control memory data register 4. The micro instruction set to the register 4 is decoded by an instruction decoder 5 and is inputted to a controlling circuit 6. The controlling circuit 6 executes the micro instruction and sets the control memory address of a micro instruction to be next executed to the control memory address register 3 and instructs a control memory reading circuit 2 to read the next micro instruction.
JP56074959A 1981-05-20 1981-05-20 Microprogram tracing system Pending JPS57191759A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56074959A JPS57191759A (en) 1981-05-20 1981-05-20 Microprogram tracing system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56074959A JPS57191759A (en) 1981-05-20 1981-05-20 Microprogram tracing system

Publications (1)

Publication Number Publication Date
JPS57191759A true JPS57191759A (en) 1982-11-25

Family

ID=13562356

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56074959A Pending JPS57191759A (en) 1981-05-20 1981-05-20 Microprogram tracing system

Country Status (1)

Country Link
JP (1) JPS57191759A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6330942A (en) * 1986-07-25 1988-02-09 Hitachi Ltd Microprogram feed history displaying system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6330942A (en) * 1986-07-25 1988-02-09 Hitachi Ltd Microprogram feed history displaying system

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