JPS5729162A - Program tracer - Google Patents

Program tracer

Info

Publication number
JPS5729162A
JPS5729162A JP10346980A JP10346980A JPS5729162A JP S5729162 A JPS5729162 A JP S5729162A JP 10346980 A JP10346980 A JP 10346980A JP 10346980 A JP10346980 A JP 10346980A JP S5729162 A JPS5729162 A JP S5729162A
Authority
JP
Japan
Prior art keywords
program
signal
counter
instruction fetch
value
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
JP10346980A
Other languages
Japanese (ja)
Inventor
Masaki Yagyu
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 JP10346980A priority Critical patent/JPS5729162A/en
Publication of JPS5729162A publication Critical patent/JPS5729162A/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
    • G06F11/30—Monitoring
    • G06F11/34—Recording or statistical evaluation of computer activity, e.g. of down time, of input/output operation ; Recording or statistical evaluation of user activity, e.g. usability assessment

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)
  • Debugging And Monitoring (AREA)

Abstract

PURPOSE:To trace the program of any electronic computer by storing the value of a program counter in a storage device in every instruction fetch cycle by using an instruction fetch signal as a gate signal. CONSTITUTION:When a trace start address is set in an address setting part 201, a program to be traced is made run. Therefore, an instruction fetch M1 signal is inputted to a counter 205, an address coincidence detection part 202 and an instruction decoding part 203 through a gate. This detection part 202 compares the set value of the counter 205 with the value of the setting part 201 in response to every M1 signal and, when their coincidence is obtained, supplies the MI signal to the counter 205, whose count-up output is supplied to a storage device 204. A program counter output is supplied to the device 204, but this input is brought under write control by the M1 signal. Consequently, the processing path of the program is traced according to a program written in program counter values.
JP10346980A 1980-07-28 1980-07-28 Program tracer Pending JPS5729162A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10346980A JPS5729162A (en) 1980-07-28 1980-07-28 Program tracer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10346980A JPS5729162A (en) 1980-07-28 1980-07-28 Program tracer

Publications (1)

Publication Number Publication Date
JPS5729162A true JPS5729162A (en) 1982-02-17

Family

ID=14354864

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10346980A Pending JPS5729162A (en) 1980-07-28 1980-07-28 Program tracer

Country Status (1)

Country Link
JP (1) JPS5729162A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08320808A (en) * 1995-05-24 1996-12-03 Nec Corp Emulation system
US5762131A (en) * 1993-09-03 1998-06-09 Kabushiki Kaisha Sekuto Kagaku Heat radiating board and method for cooling by using the same

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5762131A (en) * 1993-09-03 1998-06-09 Kabushiki Kaisha Sekuto Kagaku Heat radiating board and method for cooling by using the same
JPH08320808A (en) * 1995-05-24 1996-12-03 Nec Corp Emulation system

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