JPS5523555A - Micro cash system having resident bit - Google Patents

Micro cash system having resident bit

Info

Publication number
JPS5523555A
JPS5523555A JP9600978A JP9600978A JPS5523555A JP S5523555 A JPS5523555 A JP S5523555A JP 9600978 A JP9600978 A JP 9600978A JP 9600978 A JP9600978 A JP 9600978A JP S5523555 A JPS5523555 A JP S5523555A
Authority
JP
Japan
Prior art keywords
resident
micro
micro instructions
tag
stored
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
JP9600978A
Other languages
Japanese (ja)
Inventor
Katsuyuki Iwata
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 JP9600978A priority Critical patent/JPS5523555A/en
Publication of JPS5523555A publication Critical patent/JPS5523555A/en
Pending legal-status Critical Current

Links

Landscapes

  • Memory System Of A Hierarchy Structure (AREA)

Abstract

PURPOSE: To make it possible to store preferentially micro instructions required for a processing, by adding a resident bit to the tag entry of micro instructions, which should be resident, in micro program cash system.
CONSTITUTION: Micro instructions (A to J and others (a)) are stored in controlling backup memory, and a part of them (A to J and others (b)) is stored in control buffer memory 12. Upper addresses of micro instructions in control buffer memory 12 and resident bit f enter in tag 10, and resident bit f is added to the tag entry of micro instructions which should be resident. Upper address ad-1 and the output of the tag are compared with each other by comparator 11; and in case of agreement, the pertinent micro insturction stored in control buffer memory 12 is led out through selector 13 and is sent to controlling data register 9.
COPYRIGHT: (C)1980,JPO&Japio
JP9600978A 1978-08-07 1978-08-07 Micro cash system having resident bit Pending JPS5523555A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9600978A JPS5523555A (en) 1978-08-07 1978-08-07 Micro cash system having resident bit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9600978A JPS5523555A (en) 1978-08-07 1978-08-07 Micro cash system having resident bit

Publications (1)

Publication Number Publication Date
JPS5523555A true JPS5523555A (en) 1980-02-20

Family

ID=14153174

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9600978A Pending JPS5523555A (en) 1978-08-07 1978-08-07 Micro cash system having resident bit

Country Status (1)

Country Link
JP (1) JPS5523555A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6353661A (en) * 1986-08-22 1988-03-07 Nippon Telegr & Teleph Corp <Ntt> Cache control system
JPH01165898A (en) * 1987-12-23 1989-06-29 Tokyu Constr Co Ltd Cast-in-place shield excavator
JPH0642291A (en) * 1991-05-27 1994-02-15 Toa Gurauto Kogyo Kk Pipeline construction method

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6353661A (en) * 1986-08-22 1988-03-07 Nippon Telegr & Teleph Corp <Ntt> Cache control system
JPH01165898A (en) * 1987-12-23 1989-06-29 Tokyu Constr Co Ltd Cast-in-place shield excavator
JPH0642291A (en) * 1991-05-27 1994-02-15 Toa Gurauto Kogyo Kk Pipeline construction method

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