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JPS55124847A - Data processor - Google Patents

Data processor

Info

Publication number
JPS55124847A
JPS55124847A JP3198879A JP3198879A JPS55124847A JP S55124847 A JPS55124847 A JP S55124847A JP 3198879 A JP3198879 A JP 3198879A JP 3198879 A JP3198879 A JP 3198879A JP S55124847 A JPS55124847 A JP S55124847A
Authority
JP
Japan
Prior art keywords
decoder
instruction
rewriting
types
emulation
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
JP3198879A
Other languages
Japanese (ja)
Inventor
Hidefusa Suga
Hakuro Mori
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric 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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP3198879A priority Critical patent/JPS55124847A/en
Publication of JPS55124847A publication Critical patent/JPS55124847A/en
Pending legal-status Critical Current

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  • Executing Machine-Instructions (AREA)

Abstract

PURPOSE: To enable to simply execute the emulation of other types of computer, by constituting the decoder with rewriting element.
CONSTITUTION: In executing the emultation of computers of other types, to process the machine various systems given, the data prepared in advance is written in the instruction preprocessing unit control decoder 18 for pipe line processing and instruction execution unit control decoder 19 from the service processor 4. The decoder write-in control set 24 designates the address of memory element constituting the constituent of decoder and writes in during the stop of normal operation of the instruction preprocessing unit 2. Through rewriting of decoder, efficient emulation can be made and it can be applied to high language at all times. Further, by forming the instruction detouching the failed part, the interruption of processing can be avoided.
COPYRIGHT: (C)1980,JPO&Japio
JP3198879A 1979-03-19 1979-03-19 Data processor Pending JPS55124847A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3198879A JPS55124847A (en) 1979-03-19 1979-03-19 Data processor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3198879A JPS55124847A (en) 1979-03-19 1979-03-19 Data processor

Publications (1)

Publication Number Publication Date
JPS55124847A true JPS55124847A (en) 1980-09-26

Family

ID=12346293

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3198879A Pending JPS55124847A (en) 1979-03-19 1979-03-19 Data processor

Country Status (1)

Country Link
JP (1) JPS55124847A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57136257A (en) * 1981-02-18 1982-08-23 Hitachi Ltd Control signal converting circuit of lsi
JPS60100229A (en) * 1984-10-05 1985-06-04 Hitachi Ltd data processing equipment
JPH04245331A (en) * 1990-08-31 1992-09-01 Internatl Business Mach Corp <Ibm> Switching device of digital command execution between execution device
US5848255A (en) * 1996-06-19 1998-12-08 Mitsubushi Denki Kabushiki Kaisha Method and aparatus for increasing the number of instructions capable of being used in a parallel processor by providing programmable operation decorders

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57136257A (en) * 1981-02-18 1982-08-23 Hitachi Ltd Control signal converting circuit of lsi
JPS60100229A (en) * 1984-10-05 1985-06-04 Hitachi Ltd data processing equipment
JPH04245331A (en) * 1990-08-31 1992-09-01 Internatl Business Mach Corp <Ibm> Switching device of digital command execution between execution device
US5848255A (en) * 1996-06-19 1998-12-08 Mitsubushi Denki Kabushiki Kaisha Method and aparatus for increasing the number of instructions capable of being used in a parallel processor by providing programmable operation decorders

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