JPS5685159A - Program memory of microprocessor - Google Patents

Program memory of microprocessor

Info

Publication number
JPS5685159A
JPS5685159A JP16208179A JP16208179A JPS5685159A JP S5685159 A JPS5685159 A JP S5685159A JP 16208179 A JP16208179 A JP 16208179A JP 16208179 A JP16208179 A JP 16208179A JP S5685159 A JPS5685159 A JP S5685159A
Authority
JP
Japan
Prior art keywords
word
bit
written
program memory
length
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
JP16208179A
Other languages
Japanese (ja)
Other versions
JPS6313214B2 (en
Inventor
Joji Murakami
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 JP16208179A priority Critical patent/JPS5685159A/en
Publication of JPS5685159A publication Critical patent/JPS5685159A/en
Publication of JPS6313214B2 publication Critical patent/JPS6313214B2/ja
Granted legal-status Critical Current

Links

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  • Executing Machine-Instructions (AREA)
  • Microcomputers (AREA)

Abstract

PURPOSE: To enhance the using efficiency of a program memory, by setting the length of one word of the program memory to the parallel process enabling bit length of the arithmetic process part or its integer-fold bit length plus a small number of additional bits.
CONSTITUTION: The length of a word of the program memory formed on the same chip as the arithmetic process part is set to the parallel process enabling bit length of the arithmetic part or its integer-fold bit length plus a small number of additional bits. Then the operation code or the like to the information to be written into the residual bit memory region of the word is written into the memory region of the additional bit. For example, the program memory of the W words is used comprising the operation code of 8 bits or its integer-fold word length plus the memory region 10 of the instant value data. Then 0 and 1 are written into the additional bit of the word with the operation code written and the additional bit of the word the instant value data written respectively.
COPYRIGHT: (C)1981,JPO&Japio
JP16208179A 1979-12-13 1979-12-13 Program memory of microprocessor Granted JPS5685159A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16208179A JPS5685159A (en) 1979-12-13 1979-12-13 Program memory of microprocessor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16208179A JPS5685159A (en) 1979-12-13 1979-12-13 Program memory of microprocessor

Publications (2)

Publication Number Publication Date
JPS5685159A true JPS5685159A (en) 1981-07-11
JPS6313214B2 JPS6313214B2 (en) 1988-03-24

Family

ID=15747716

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16208179A Granted JPS5685159A (en) 1979-12-13 1979-12-13 Program memory of microprocessor

Country Status (1)

Country Link
JP (1) JPS5685159A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007088819A1 (en) * 2006-02-03 2007-08-09 Matsushita Electric Industrial Co., Ltd. Processor

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5259537A (en) * 1975-11-11 1977-05-17 Mitsubishi Electric Corp Data processor

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5259537A (en) * 1975-11-11 1977-05-17 Mitsubishi Electric Corp Data processor

Also Published As

Publication number Publication date
JPS6313214B2 (en) 1988-03-24

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