JPS60124730A - Digital operation circuit - Google Patents

Digital operation circuit

Info

Publication number
JPS60124730A
JPS60124730A JP58233173A JP23317383A JPS60124730A JP S60124730 A JPS60124730 A JP S60124730A JP 58233173 A JP58233173 A JP 58233173A JP 23317383 A JP23317383 A JP 23317383A JP S60124730 A JPS60124730 A JP S60124730A
Authority
JP
Japan
Prior art keywords
data
external
storage means
same time
selects
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
JP58233173A
Other versions
JPH0721760B2 (en
Inventor
Ryohei Kato
Original Assignee
Sony 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
Application filed by Sony Corp filed Critical Sony Corp
Priority to JP58233173A priority Critical patent/JPH0721760B2/en
Publication of JPS60124730A publication Critical patent/JPS60124730A/en
Publication of JPH0721760B2 publication Critical patent/JPH0721760B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G06COMPUTING; CALCULATING; COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F7/00Methods or arrangements for processing data by operating upon the order or content of the data handled
    • G06F7/38Methods or arrangements for performing computations using exclusively denominational number representation, e.g. using binary, ternary, decimal representation
    • G06F7/48Methods or arrangements for performing computations using exclusively denominational number representation, e.g. using binary, ternary, decimal representation using non-contact-making devices, e.g. tube, solid state device; using unspecified devices
    • GPHYSICS
    • G06COMPUTING; CALCULATING; COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F2207/00Indexing scheme relating to methods or arrangements for processing data by operating upon the order or content of the data handled
    • G06F2207/38Indexing scheme relating to groups G06F7/38 - G06F7/575
    • G06F2207/3804Details
    • G06F2207/386Special constructional features
    • G06F2207/3884Pipelining

Abstract

PURPOSE:To improve the processing speed when somewhat complicated addition/ subtraction is performed or lots of additions/subtractions are conducted in a way of pipeline by using one input port so as to fetch an external data and operate data at the same time. CONSTITUTION:The 1st selector 11 selects either an external input data or an operation output data. A storage means 12 stores a data from the 1st selects 13 either two data read from the storage means 12 or external two input data. An operator 14 processes operation based on the two data from the 2nd selector 13 and output an operation output data. Then the external input data are stored directly to at least a part of the storage means 12 and the external data is fetched and the internal data are operated at the same time.
JP58233173A 1983-12-10 1983-12-10 Digital arithmetic circuit Expired - Lifetime JPH0721760B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP58233173A JPH0721760B2 (en) 1983-12-10 1983-12-10 Digital arithmetic circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP58233173A JPH0721760B2 (en) 1983-12-10 1983-12-10 Digital arithmetic circuit

Publications (2)

Publication Number Publication Date
JPS60124730A true JPS60124730A (en) 1985-07-03
JPH0721760B2 JPH0721760B2 (en) 1995-03-08

Family

ID=16950868

Family Applications (1)

Application Number Title Priority Date Filing Date
JP58233173A Expired - Lifetime JPH0721760B2 (en) 1983-12-10 1983-12-10 Digital arithmetic circuit

Country Status (1)

Country Link
JP (1) JPH0721760B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01171033A (en) * 1987-12-25 1989-07-06 Matsushita Electric Ind Co Ltd Arithmetic unit
JPH02239323A (en) * 1989-01-27 1990-09-21 Hughes Aircraft Co Register logical operation unit

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53107240A (en) * 1977-03-01 1978-09-19 Nec Corp Control system of register memory
JPS57182851A (en) * 1981-05-06 1982-11-10 Mitsubishi Electric Corp Computer of pipeline system
JPS58201138A (en) * 1982-05-20 1983-11-22 Fujitsu Ltd Digital signal processing circuit

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53107240A (en) * 1977-03-01 1978-09-19 Nec Corp Control system of register memory
JPS57182851A (en) * 1981-05-06 1982-11-10 Mitsubishi Electric Corp Computer of pipeline system
JPS58201138A (en) * 1982-05-20 1983-11-22 Fujitsu Ltd Digital signal processing circuit

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01171033A (en) * 1987-12-25 1989-07-06 Matsushita Electric Ind Co Ltd Arithmetic unit
JPH02239323A (en) * 1989-01-27 1990-09-21 Hughes Aircraft Co Register logical operation unit

Also Published As

Publication number Publication date
JPH0721760B2 (en) 1995-03-08

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