JPS6462735A - Microprogram controller - Google Patents

Microprogram controller

Info

Publication number
JPS6462735A
JPS6462735A JP22112087A JP22112087A JPS6462735A JP S6462735 A JPS6462735 A JP S6462735A JP 22112087 A JP22112087 A JP 22112087A JP 22112087 A JP22112087 A JP 22112087A JP S6462735 A JPS6462735 A JP S6462735A
Authority
JP
Japan
Prior art keywords
register
drawback
instruction
processing
range
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
JP22112087A
Other languages
Japanese (ja)
Inventor
Koichi Nomura
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
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 filed Critical NEC Corp
Priority to JP22112087A priority Critical patent/JPS6462735A/en
Publication of JPS6462735A publication Critical patent/JPS6462735A/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
    • G06F9/461—Saving or restoring of program or task context
    • G06F9/462—Saving or restoring of program or task context with multiple register sets

Landscapes

  • Engineering & Computer Science (AREA)
  • Software Systems (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)

Abstract

PURPOSE:To omit a useless drawback and a restoration processing, and to contrive to improve the processing capacity, by excluding a register whose contents can be changed by an interruption processing, from a drawback range by a unit of a routine, etc. CONSTITUTION:A drawback register range designating instruction B for designating a range of a register which necessitates a drawback when an interruption has been generated is contained in advance at every key point in a micro- program. Also, it is held in a micro-instruction register 2. In such a state, a drawback register range designating instruction B of a micro-instruction is decoded in a register drawback/restoration control part 7, and the register drawback/restoration control part 7 draws back the contents of a determined register which necessitates a drawback, to a register drawback use memory 8, based on the drawback register range designating instruction B which has been decoded recently, among each register for constituting a register group 4. That is, as for the register whose contents can be changed by an interruption processing, a useless drawback and a restoration processing are omitted. In such a way, the processing capacity as the whole device is improved.
JP22112087A 1987-09-03 1987-09-03 Microprogram controller Pending JPS6462735A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP22112087A JPS6462735A (en) 1987-09-03 1987-09-03 Microprogram controller

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP22112087A JPS6462735A (en) 1987-09-03 1987-09-03 Microprogram controller

Publications (1)

Publication Number Publication Date
JPS6462735A true JPS6462735A (en) 1989-03-09

Family

ID=16761785

Family Applications (1)

Application Number Title Priority Date Filing Date
JP22112087A Pending JPS6462735A (en) 1987-09-03 1987-09-03 Microprogram controller

Country Status (1)

Country Link
JP (1) JPS6462735A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009217681A (en) * 2008-03-12 2009-09-24 Omron Corp Plc with interrupting function

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009217681A (en) * 2008-03-12 2009-09-24 Omron Corp Plc with interrupting function

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