JPS55154635A - Data processor - Google Patents

Data processor

Info

Publication number
JPS55154635A
JPS55154635A JP6144279A JP6144279A JPS55154635A JP S55154635 A JPS55154635 A JP S55154635A JP 6144279 A JP6144279 A JP 6144279A JP 6144279 A JP6144279 A JP 6144279A JP S55154635 A JPS55154635 A JP S55154635A
Authority
JP
Japan
Prior art keywords
instruction
memory
control information
content
data processor
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.)
Granted
Application number
JP6144279A
Other languages
Japanese (ja)
Other versions
JPS5826584B2 (en
Inventor
Tsuguo Momose
Kanji Kubo
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP54061442A priority Critical patent/JPS5826584B2/en
Publication of JPS55154635A publication Critical patent/JPS55154635A/en
Publication of JPS5826584B2 publication Critical patent/JPS5826584B2/en
Expired legal-status Critical Current

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  • Executing Machine-Instructions (AREA)

Abstract

PURPOSE: To enable to add and alter the instruction words easily, by reading out the preceding control information from the first memory and obtaining the control information from the second memory.
CONSTITUTION: A memory 304 stored the preceding control information of instruction words, and the content of the instruction code of an instruction register 301 is read out via a line 301 as address information. On the other hand, a memory 305 stores the control information of instructions, the instruction subcode is given via a line 311 as address information and the content is read out. Thus, the addtion and alteration of instruction words can easily be made without alterating of the hardware.
COPYRIGHT: (C)1980,JPO&Japio
JP54061442A 1979-05-21 1979-05-21 data processing equipment Expired JPS5826584B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP54061442A JPS5826584B2 (en) 1979-05-21 1979-05-21 data processing equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP54061442A JPS5826584B2 (en) 1979-05-21 1979-05-21 data processing equipment

Publications (2)

Publication Number Publication Date
JPS55154635A true JPS55154635A (en) 1980-12-02
JPS5826584B2 JPS5826584B2 (en) 1983-06-03

Family

ID=13171177

Family Applications (1)

Application Number Title Priority Date Filing Date
JP54061442A Expired JPS5826584B2 (en) 1979-05-21 1979-05-21 data processing equipment

Country Status (1)

Country Link
JP (1) JPS5826584B2 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60128531A (en) * 1983-12-15 1985-07-09 Nec Corp Data processing unit
JPS63155327A (en) * 1986-12-19 1988-06-28 Nec Corp Information processor
JPS6444544A (en) * 1987-08-12 1989-02-16 Hitachi Ltd Program control system
JPH0235523A (en) * 1987-11-03 1990-02-06 Lsi Logic Corp Flexible asic microcomputer
JP2554378B2 (en) * 1988-01-27 1996-11-13 沖電気工業株式会社 Microcomputer and test method thereof

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60157284U (en) * 1984-03-29 1985-10-19 三菱鉛筆株式会社 Retractable writing instrument
JPS6181990U (en) * 1984-11-02 1986-05-30

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5313854A (en) * 1976-07-23 1978-02-07 Panafacom Ltd Information processor

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5313854A (en) * 1976-07-23 1978-02-07 Panafacom Ltd Information processor

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60128531A (en) * 1983-12-15 1985-07-09 Nec Corp Data processing unit
JPS63155327A (en) * 1986-12-19 1988-06-28 Nec Corp Information processor
JPS6444544A (en) * 1987-08-12 1989-02-16 Hitachi Ltd Program control system
JPH0235523A (en) * 1987-11-03 1990-02-06 Lsi Logic Corp Flexible asic microcomputer
JP2554378B2 (en) * 1988-01-27 1996-11-13 沖電気工業株式会社 Microcomputer and test method thereof

Also Published As

Publication number Publication date
JPS5826584B2 (en) 1983-06-03

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