JPS5593580A - Buffer memory control system - Google Patents

Buffer memory control system

Info

Publication number
JPS5593580A
JPS5593580A JP16239178A JP16239178A JPS5593580A JP S5593580 A JPS5593580 A JP S5593580A JP 16239178 A JP16239178 A JP 16239178A JP 16239178 A JP16239178 A JP 16239178A JP S5593580 A JPS5593580 A JP S5593580A
Authority
JP
Japan
Prior art keywords
stored
data
registers
unit
buffer memory
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
JP16239178A
Other languages
Japanese (ja)
Inventor
Hirosada Tone
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 JP16239178A priority Critical patent/JPS5593580A/en
Publication of JPS5593580A publication Critical patent/JPS5593580A/en
Pending legal-status Critical Current

Links

Landscapes

  • Advance Control (AREA)
  • Memory System Of A Hierarchy Structure (AREA)

Abstract

PURPOSE: To make the fetch processing efficient by returning data to a CPU when the fetch address does not exist in a high-speed buffer memory unit and data of the address exists in a store buffer register.
CONSTITUTION: When an address block to be stored exists in high-speed buffer memory unit 2, data is stored into unit 2 and store buffer registers 6 and 7. Meanwhile, when the address block to be stored does not exist in unit 2, data is stored in registers 6 and 7. In case that fetch request is issued from the CPU to the address block when the address block to be stored does not exist in unit 2 and data to be stored in a main memory is held in registers 6 and 7, data held in registers 6 and 7 is returned to the CPU.
COPYRIGHT: (C)1980,JPO&Japio
JP16239178A 1978-12-29 1978-12-29 Buffer memory control system Pending JPS5593580A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16239178A JPS5593580A (en) 1978-12-29 1978-12-29 Buffer memory control system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16239178A JPS5593580A (en) 1978-12-29 1978-12-29 Buffer memory control system

Publications (1)

Publication Number Publication Date
JPS5593580A true JPS5593580A (en) 1980-07-16

Family

ID=15753682

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16239178A Pending JPS5593580A (en) 1978-12-29 1978-12-29 Buffer memory control system

Country Status (1)

Country Link
JP (1) JPS5593580A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63173146A (en) * 1987-01-13 1988-07-16 Yokogawa Electric Corp Cache memory control system

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5023940A (en) * 1973-06-26 1975-03-14
JPS5136042A (en) * 1974-09-24 1976-03-26 Hitachi Ltd
JPS5335439A (en) * 1976-09-14 1978-04-01 Fujitsu Ltd Store control system
JPS53148343A (en) * 1977-05-31 1978-12-23 Fujitsu Ltd Post store control system

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5023940A (en) * 1973-06-26 1975-03-14
JPS5136042A (en) * 1974-09-24 1976-03-26 Hitachi Ltd
JPS5335439A (en) * 1976-09-14 1978-04-01 Fujitsu Ltd Store control system
JPS53148343A (en) * 1977-05-31 1978-12-23 Fujitsu Ltd Post store control system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63173146A (en) * 1987-01-13 1988-07-16 Yokogawa Electric Corp Cache memory control system

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