FR2423822B1 - - Google Patents

Info

Publication number
FR2423822B1
FR2423822B1 FR7905120A FR7905120A FR2423822B1 FR 2423822 B1 FR2423822 B1 FR 2423822B1 FR 7905120 A FR7905120 A FR 7905120A FR 7905120 A FR7905120 A FR 7905120A FR 2423822 B1 FR2423822 B1 FR 2423822B1
Authority
FR
France
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.)
Expired
Application number
FR7905120A
Other languages
French (fr)
Other versions
FR2423822A1 (en
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.)
International Business Machines Corp
Original Assignee
International Business Machines Corp
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
Priority claimed from US05/887,091 external-priority patent/US4189768A/en
Priority claimed from US05/887,097 external-priority patent/US4189770A/en
Priority claimed from US05/887,095 external-priority patent/US4189772A/en
Application filed by International Business Machines Corp filed Critical International Business Machines Corp
Publication of FR2423822A1 publication Critical patent/FR2423822A1/en
Application granted granted Critical
Publication of FR2423822B1 publication Critical patent/FR2423822B1/fr
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F9/00—Arrangements for program control, e.g. control units
    • G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
    • G06F9/30—Arrangements for executing machine instructions, e.g. instruction decode
    • G06F9/30003—Arrangements for executing specific machine instructions
    • G06F9/30007—Arrangements for executing specific machine instructions to perform operations on data operands
    • G06F9/30018—Bit or string instructions
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F12/00—Accessing, addressing or allocating within memory systems or architectures
    • G06F12/02—Addressing or allocation; Relocation
    • G06F12/04—Addressing variable-length words or parts of words
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F12/00—Accessing, addressing or allocating within memory systems or architectures
    • G06F12/02—Addressing or allocation; Relocation
    • G06F12/08—Addressing or allocation; Relocation in hierarchically structured memory systems, e.g. virtual memory systems
    • G06F12/0802—Addressing of a memory level in which the access to the desired data or data block requires associative addressing means, e.g. caches
    • G06F12/0844—Multiple simultaneous or quasi-simultaneous cache accessing
    • G06F12/0855—Overlapped cache accessing, e.g. pipeline
    • G06F12/0859—Overlapped cache accessing, e.g. pipeline with reload from main memory
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F12/00—Accessing, addressing or allocating within memory systems or architectures
    • G06F12/02—Addressing or allocation; Relocation
    • G06F12/08—Addressing or allocation; Relocation in hierarchically structured memory systems, e.g. virtual memory systems
    • G06F12/0802—Addressing of a memory level in which the access to the desired data or data block requires associative addressing means, e.g. caches
    • G06F12/0877—Cache access modes
    • G06F12/0886—Variable-length word access
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F9/00—Arrangements for program control, e.g. control units
    • G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
    • G06F9/30—Arrangements for executing machine instructions, e.g. instruction decode
    • G06F9/30003—Arrangements for executing specific machine instructions
    • G06F9/3004—Arrangements for executing specific machine instructions to perform operations on memory
    • G06F9/30043—LOAD or STORE instructions; Clear instruction
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F9/00—Arrangements for program control, e.g. control units
    • G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
    • G06F9/30—Arrangements for executing machine instructions, e.g. instruction decode
    • G06F9/34—Addressing or accessing the instruction operand or the result ; Formation of operand address; Addressing modes
    • G06F9/345—Addressing or accessing the instruction operand or the result ; Formation of operand address; Addressing modes of multiple operands or results
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F9/00—Arrangements for program control, e.g. control units
    • G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
    • G06F9/30—Arrangements for executing machine instructions, e.g. instruction decode
    • G06F9/38—Concurrent instruction execution, e.g. pipeline, look ahead
    • G06F9/3802—Instruction prefetching
    • G06F9/3816—Instruction alignment, e.g. cache line crossing
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F9/00—Arrangements for program control, e.g. control units
    • G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
    • G06F9/30—Arrangements for executing machine instructions, e.g. instruction decode
    • G06F9/38—Concurrent instruction execution, e.g. pipeline, look ahead
    • G06F9/3824—Operand accessing
    • G06F9/383—Operand prefetching
FR7905120A 1978-03-16 1979-02-22 DATA TRANSFER CONTROL DEVICE Granted FR2423822A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US05/887,091 US4189768A (en) 1978-03-16 1978-03-16 Operand fetch control improvement
US05/887,097 US4189770A (en) 1978-03-16 1978-03-16 Cache bypass control for operand fetches
US05/887,095 US4189772A (en) 1978-03-16 1978-03-16 Operand alignment controls for VFL instructions

Publications (2)

Publication Number Publication Date
FR2423822A1 FR2423822A1 (en) 1979-11-16
FR2423822B1 true FR2423822B1 (en) 1983-08-05

Family

ID=27420522

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7905120A Granted FR2423822A1 (en) 1978-03-16 1979-02-22 DATA TRANSFER CONTROL DEVICE

Country Status (4)

Country Link
DE (1) DE2909987A1 (en)
FR (1) FR2423822A1 (en)
GB (1) GB2016752B (en)
IT (1) IT1164980B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3138948C2 (en) * 1981-09-30 1985-04-18 Siemens AG, 1000 Berlin und 8000 München Circuit arrangement for generating byte identifier bits for processing memory operands
BR8406089A (en) * 1983-11-30 1985-09-24 Fujitsu Ltd PROCESS TO CONTROL INTERMEDIATE MEMORY IN DATA PROCESSING DEVICE

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3800292A (en) * 1972-10-05 1974-03-26 Honeywell Inf Systems Variable masking for segmented memory
US3858183A (en) * 1972-10-30 1974-12-31 Amdahl Corp Data processing system and method therefor
US3806888A (en) * 1972-12-04 1974-04-23 Ibm Hierarchial memory system

Also Published As

Publication number Publication date
GB2016752A (en) 1979-09-26
IT1164980B (en) 1987-04-22
IT7920140A0 (en) 1979-02-13
FR2423822A1 (en) 1979-11-16
GB2016752B (en) 1982-03-10
DE2909987A1 (en) 1979-09-20

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Legal Events

Date Code Title Description
ST Notification of lapse