JPS5752947A - Information processing equipment - Google Patents

Information processing equipment

Info

Publication number
JPS5752947A
JPS5752947A JP12953680A JP12953680A JPS5752947A JP S5752947 A JPS5752947 A JP S5752947A JP 12953680 A JP12953680 A JP 12953680A JP 12953680 A JP12953680 A JP 12953680A JP S5752947 A JPS5752947 A JP S5752947A
Authority
JP
Japan
Prior art keywords
stack
content
program
stack pointer
contents
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
JP12953680A
Other languages
Japanese (ja)
Inventor
Katsuhiko Nakazawa
Hiroshi Sugaya
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 JP12953680A priority Critical patent/JPS5752947A/en
Publication of JPS5752947A publication Critical patent/JPS5752947A/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

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Quality & Reliability (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Executing Machine-Instructions (AREA)

Abstract

PURPOSE:To inform stack abnormalities by generating detect signals when contents of the stack pointer which changes the content in accordance with the number of characteristic of evacuating programs to be stored in the stack memory do not coincide with preset contents. CONSTITUTION:When the program being executed is evacuated because a processing, such as interruption, is generated during the course of program execution of a processing section 12, its characteristic (e.g. the return address when the evacuating program is returns) is planted in a stack memory 13, and a stack pointer 1 is a counter for example, whose content is processed every time when the above mentioned returning address is set, and is used for address designation when evacuated programs are called. When the content of the stack pointer 1 becomes more than or less than contents of an upper limit and lower limit registers 2 and 3, respectively at comparators 4 and 5, the content of the stack pointer 1 is output as interrupt signals 9 and 10 after detect signals 15 and 16 are respectively generated. In this way, destructions of program process can be prevented.
JP12953680A 1980-09-17 1980-09-17 Information processing equipment Pending JPS5752947A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12953680A JPS5752947A (en) 1980-09-17 1980-09-17 Information processing equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12953680A JPS5752947A (en) 1980-09-17 1980-09-17 Information processing equipment

Publications (1)

Publication Number Publication Date
JPS5752947A true JPS5752947A (en) 1982-03-29

Family

ID=15011941

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12953680A Pending JPS5752947A (en) 1980-09-17 1980-09-17 Information processing equipment

Country Status (1)

Country Link
JP (1) JPS5752947A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60151752A (en) * 1984-01-18 1985-08-09 Nec Corp Interruption processing system of microcomputer
JPS61160146A (en) * 1984-12-31 1986-07-19 Fujitsu Ltd Control system of address stack pointer device
JPS6231435A (en) * 1985-07-31 1987-02-10 Nec Corp Detecting system for end of stack
JPH04128345U (en) * 1991-05-10 1992-11-24 カシオ計算機株式会社 signal processing device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60151752A (en) * 1984-01-18 1985-08-09 Nec Corp Interruption processing system of microcomputer
JPS61160146A (en) * 1984-12-31 1986-07-19 Fujitsu Ltd Control system of address stack pointer device
JPS6231435A (en) * 1985-07-31 1987-02-10 Nec Corp Detecting system for end of stack
JPH04128345U (en) * 1991-05-10 1992-11-24 カシオ計算機株式会社 signal processing device

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