JPS57200983A - Stacker control system - Google Patents

Stacker control system

Info

Publication number
JPS57200983A
JPS57200983A JP56084857A JP8485781A JPS57200983A JP S57200983 A JPS57200983 A JP S57200983A JP 56084857 A JP56084857 A JP 56084857A JP 8485781 A JP8485781 A JP 8485781A JP S57200983 A JPS57200983 A JP S57200983A
Authority
JP
Japan
Prior art keywords
stacker
written
state
return address
address
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
JP56084857A
Other languages
Japanese (ja)
Inventor
Takahito Noda
Tsuguo Ueki
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 JP56084857A priority Critical patent/JPS57200983A/en
Publication of JPS57200983A publication Critical patent/JPS57200983A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11C—STATIC STORES
    • G11C8/00—Arrangements for selecting an address in a digital store
    • G11C8/04—Arrangements for selecting an address in a digital store using a sequential addressing device, e.g. shift register, counter

Landscapes

  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Executing Machine-Instructions (AREA)

Abstract

PURPOSE:To generate a nest exceeding the capacity of a stacker, by saving the contents of the stacker when write has been executed in a state that the stacker is full, and returning the saved information to the stacker when read-out has been executed in a state that the stacker is idle. CONSTITUTION:When processing jumps to a subroutine (a) by a call instruction of this program in a state that a stacker pointer STP is ''00'' and an address of a stacker STK is ''0'', the pointer is added by ''1'', and a return address A of this program is written in the stacker address ''0''. In case when the call instruction is given in the course of running of the subroutine (a), a return address B is written, and a return address C is further written in a state that the stacker is full, its contents are saved into a main storage device MS, and the return address C is written. Subsequently, when the subroutine C ends, the pointer is subtracted by ''1'', the return address C is read out, and also the return addresses A, B in the MS are restored and read out continuously. In this way, a nest exceeding the capacity of the stacker is generated.
JP56084857A 1981-06-02 1981-06-02 Stacker control system Pending JPS57200983A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56084857A JPS57200983A (en) 1981-06-02 1981-06-02 Stacker control system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56084857A JPS57200983A (en) 1981-06-02 1981-06-02 Stacker control system

Publications (1)

Publication Number Publication Date
JPS57200983A true JPS57200983A (en) 1982-12-09

Family

ID=13842475

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56084857A Pending JPS57200983A (en) 1981-06-02 1981-06-02 Stacker control system

Country Status (1)

Country Link
JP (1) JPS57200983A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61216035A (en) * 1985-03-22 1986-09-25 Mitsubishi Electric Corp Method for processing overflow of address stack
JP2008282105A (en) * 2007-05-08 2008-11-20 Fujitsu Microelectronics Ltd Microprocessor and register saving method

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61216035A (en) * 1985-03-22 1986-09-25 Mitsubishi Electric Corp Method for processing overflow of address stack
JP2008282105A (en) * 2007-05-08 2008-11-20 Fujitsu Microelectronics Ltd Microprocessor and register saving method
US8484446B2 (en) 2007-05-08 2013-07-09 Fujitsu Semiconductor Limited Microprocessor saving data stored in register and register saving method

Similar Documents

Publication Publication Date Title
JPS56140452A (en) Memory protection system
JPS57200983A (en) Stacker control system
JPS54122059A (en) Inter-processor information transfer system
JPS5760451A (en) Fixed data read-out system
JPS57200984A (en) Information stack system
JPS5759260A (en) Microcomputer
JPS57109055A (en) Readout control system for microinstruction
JPS5563453A (en) Memory system
JPS5785148A (en) Instruction sequence control device
JPS57101945A (en) Control system of information processor
JPS5713563A (en) Data access system in auxiliary memory device
JPS5737795A (en) Read-only memory element
JPS5769460A (en) Data saving control system
JPS5614358A (en) Operation log storing system
JPS56162151A (en) Information processing device
JPS5750378A (en) Control system of data processor
JPS57100547A (en) Log-out control system
JPS5549752A (en) Microprogram control unit
JPS56123043A (en) Address stop circuit of data processor
JPS5725054A (en) Memory access control system
JPS5462735A (en) Memory control system
JPS54161859A (en) Program indexing system
JPS5743222A (en) Input and output processing system
JPS5727340A (en) List processor
JPS5713551A (en) Data processing equipment