JPS5741744A - Program switching system of debug tool - Google Patents

Program switching system of debug tool

Info

Publication number
JPS5741744A
JPS5741744A JP55115622A JP11562280A JPS5741744A JP S5741744 A JPS5741744 A JP S5741744A JP 55115622 A JP55115622 A JP 55115622A JP 11562280 A JP11562280 A JP 11562280A JP S5741744 A JPS5741744 A JP S5741744A
Authority
JP
Japan
Prior art keywords
program
change
instruction code
switching system
comparator
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
JP55115622A
Other languages
Japanese (ja)
Inventor
Shinji Nishikawa
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 JP55115622A priority Critical patent/JPS5741744A/en
Publication of JPS5741744A publication Critical patent/JPS5741744A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F9/00—Arrangements for program control, e.g. control units
    • G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
    • G06F9/46—Multiprogramming arrangements
    • G06F9/48—Program initiating; Program switching, e.g. by interrupt
    • G06F9/4806—Task transfer initiation or dispatching
    • G06F9/4812—Task transfer initiation or dispatching by interrupt, e.g. masked
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00—Error detection; Error correction; Monitoring
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F9/00—Arrangements for program control, e.g. control units
    • G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs

Landscapes

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

Abstract

PURPOSE:To eliminate a change of hardware caused by a change of the program length, by obtainING the switching timing from a monitor program to a user program by comparing the instruction code and the signal of a data bus. CONSTITUTION:The reset instruction code of a program counter 23 is previously inserted into a switching part where a monitor program 26 is switched to a user program 25. A comparator 32 uses the reset instruction code for an input and the signal applied to a data bus D for the other input respectively. When a coincidence is brought about between the both inputs, a switch signal C from the program 26 to the program 25 is produced from the comparator 32. In such a way, no change of hardware is required although the program length is varied. Thus a complicated code form can be avoided.
JP55115622A 1980-08-22 1980-08-22 Program switching system of debug tool Pending JPS5741744A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55115622A JPS5741744A (en) 1980-08-22 1980-08-22 Program switching system of debug tool

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55115622A JPS5741744A (en) 1980-08-22 1980-08-22 Program switching system of debug tool

Publications (1)

Publication Number Publication Date
JPS5741744A true JPS5741744A (en) 1982-03-09

Family

ID=14667206

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55115622A Pending JPS5741744A (en) 1980-08-22 1980-08-22 Program switching system of debug tool

Country Status (1)

Country Link
JP (1) JPS5741744A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007509786A (en) * 2003-11-04 2007-04-19 ヴィデオジェット テクノロジーズ インコーポレイテッド Method and apparatus for reducing lint accumulation in an inkjet printhead

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007509786A (en) * 2003-11-04 2007-04-19 ヴィデオジェット テクノロジーズ インコーポレイテッド Method and apparatus for reducing lint accumulation in an inkjet printhead

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