JPS57153353A - Debugging device for microcomputer - Google Patents

Debugging device for microcomputer

Info

Publication number
JPS57153353A
JPS57153353A JP56038896A JP3889681A JPS57153353A JP S57153353 A JPS57153353 A JP S57153353A JP 56038896 A JP56038896 A JP 56038896A JP 3889681 A JP3889681 A JP 3889681A JP S57153353 A JPS57153353 A JP S57153353A
Authority
JP
Japan
Prior art keywords
output
discriminator
counter
data bus
digital switches
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
JP56038896A
Other languages
Japanese (ja)
Inventor
Nobumasa Nakano
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP56038896A priority Critical patent/JPS57153353A/en
Publication of JPS57153353A publication Critical patent/JPS57153353A/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 enable to verify a reassembled program, by replacing an arbitrary area on an additional memory with the same part of the batch-processed system memory, so as to test on-line. CONSTITUTION:An output of digital switches 711 and 714 is OR-connected corresponding to the same bit, either of them is energized with an output of a counter 73 and the set output is outputted to a coincidence discriminator 72. A CPU address bus 4 is inputted to one of the discriminator 72 from a CPU1, and a logical ''1'' output is given to the output of the discriminator 72 when both inputs are coincident. An output of digital switches 712 and 713 is OR-connected corresponding to the same bit, the output is connected to the corresponding bit line of a CPU data bus 5, and the set output is give on the CPU data bus 5 with the output of an octal notation counter 73. The octal notation counter 73 counts the output pulse of an OR gate 77 and advances as ''1'', ''2'', ''3''-''7'' from ''0'' and returns to ''0''.
JP56038896A 1981-03-18 1981-03-18 Debugging device for microcomputer Pending JPS57153353A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56038896A JPS57153353A (en) 1981-03-18 1981-03-18 Debugging device for microcomputer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56038896A JPS57153353A (en) 1981-03-18 1981-03-18 Debugging device for microcomputer

Publications (1)

Publication Number Publication Date
JPS57153353A true JPS57153353A (en) 1982-09-21

Family

ID=12537962

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56038896A Pending JPS57153353A (en) 1981-03-18 1981-03-18 Debugging device for microcomputer

Country Status (1)

Country Link
JP (1) JPS57153353A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01156806A (en) * 1987-12-14 1989-06-20 Mitsubishi Electric Corp Debugging device
US8280288B2 (en) 2008-10-08 2012-10-02 Brother Kogyo Kabushiki Kaisha Image forming device having protection member for protecting peeling claw

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01156806A (en) * 1987-12-14 1989-06-20 Mitsubishi Electric Corp Debugging device
US8280288B2 (en) 2008-10-08 2012-10-02 Brother Kogyo Kabushiki Kaisha Image forming device having protection member for protecting peeling claw

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