JPS5474335A - Buffer memory unit - Google Patents

Buffer memory unit

Info

Publication number
JPS5474335A
JPS5474335A JP14194377A JP14194377A JPS5474335A JP S5474335 A JPS5474335 A JP S5474335A JP 14194377 A JP14194377 A JP 14194377A JP 14194377 A JP14194377 A JP 14194377A JP S5474335 A JPS5474335 A JP S5474335A
Authority
JP
Japan
Prior art keywords
buffer memory
operand
levels
instruction
read
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
JP14194377A
Other languages
Japanese (ja)
Inventor
Kiyoshi Morishima
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric Co 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP14194377A priority Critical patent/JPS5474335A/en
Publication of JPS5474335A publication Critical patent/JPS5474335A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To reduce hardware in size, and to improve information processing performance on a buffer memory unit on a set associative system, by providing a memory circuit which is made capable of reading an instruction and operand at once.
CONSTITUTION: Once both request to read an instruction and operand are transmitted at the same time, they are supplied to instruction address register 1 and operand address register 2 and levels are read out from directory 80 and compared by comparators 44 and 45; when they agree each other, contents equivalent to the level are selected from buffer memory 60. In the same way as to the request to read an operand, levels A to D of directory 80 are compared by comparators 40 to 43 and contents equivalent to coincident levels are selected from buffer memory 60.
COPYRIGHT: (C)1979,JPO&Japio
JP14194377A 1977-11-25 1977-11-25 Buffer memory unit Pending JPS5474335A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14194377A JPS5474335A (en) 1977-11-25 1977-11-25 Buffer memory unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14194377A JPS5474335A (en) 1977-11-25 1977-11-25 Buffer memory unit

Publications (1)

Publication Number Publication Date
JPS5474335A true JPS5474335A (en) 1979-06-14

Family

ID=15303737

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14194377A Pending JPS5474335A (en) 1977-11-25 1977-11-25 Buffer memory unit

Country Status (1)

Country Link
JP (1) JPS5474335A (en)

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