DE3176788D1 - High speed digital processor - Google Patents

High speed digital processor

Info

Publication number
DE3176788D1
DE3176788D1 DE8181305062T DE3176788T DE3176788D1 DE 3176788 D1 DE3176788 D1 DE 3176788D1 DE 8181305062 T DE8181305062 T DE 8181305062T DE 3176788 T DE3176788 T DE 3176788T DE 3176788 D1 DE3176788 D1 DE 3176788D1
Authority
DE
Germany
Prior art keywords
high speed
digital processor
speed digital
processor
speed
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.)
Expired
Application number
DE8181305062T
Other languages
English (en)
Inventor
Yoshimune Hagiwara
Shizuo Sugiyama
Narimichi Maeda
Osamu Yumoto
Takashi Akazawa
Masahito Kobayashi
Yasuhiro Kita
Yuzo Kita
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.)
Hitachi Denshi KK
Hitachi Ltd
Original Assignee
Hitachi Denshi KK
Hitachi 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 Hitachi Denshi KK, Hitachi Ltd filed Critical Hitachi Denshi KK
Application granted granted Critical
Publication of DE3176788D1 publication Critical patent/DE3176788D1/de
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F7/00—Methods or arrangements for processing data by operating upon the order or content of the data handled
    • G06F7/38—Methods or arrangements for performing computations using exclusively denominational number representation, e.g. using binary, ternary, decimal representation
    • G06F7/48—Methods 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
    • G06F7/483—Computations with numbers represented by a non-linear combination of denominational numbers, e.g. rational numbers, logarithmic number system or floating-point numbers
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F5/00—Methods or arrangements for data conversion without changing the order or content of the data handled
    • G06F5/01—Methods or arrangements for data conversion without changing the order or content of the data handled for shifting, e.g. justifying, scaling, normalising
    • G06F5/012—Methods or arrangements for data conversion without changing the order or content of the data handled for shifting, e.g. justifying, scaling, normalising in floating-point computations
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F7/00—Methods or arrangements for processing data by operating upon the order or content of the data handled
    • G06F7/38—Methods or arrangements for performing computations using exclusively denominational number representation, e.g. using binary, ternary, decimal representation
    • G06F7/48—Methods 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
    • G06F7/483—Computations with numbers represented by a non-linear combination of denominational numbers, e.g. rational numbers, logarithmic number system or floating-point numbers
    • G06F7/485—Adding; Subtracting
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2207/00—Indexing scheme relating to methods or arrangements for processing data by operating upon the order or content of the data handled
    • G06F2207/38—Indexing scheme relating to groups G06F7/38 - G06F7/575
    • G06F2207/3804—Details
    • G06F2207/3808—Details concerning the type of numbers or the way they are handled
    • G06F2207/3856—Operand swapping
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F7/00—Methods or arrangements for processing data by operating upon the order or content of the data handled
    • G06F7/38—Methods or arrangements for performing computations using exclusively denominational number representation, e.g. using binary, ternary, decimal representation
    • G06F7/48—Methods 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
    • G06F7/499—Denomination or exception handling, e.g. rounding or overflow
    • G06F7/49905—Exception handling
    • G06F7/4991—Overflow or underflow
    • G06F7/49921—Saturation, i.e. clipping the result to a minimum or maximum value
DE8181305062T 1980-10-31 1981-10-27 High speed digital processor Expired DE3176788D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55152051A JPS5776634A (en) 1980-10-31 1980-10-31 Digital signal processor

Publications (1)

Publication Number Publication Date
DE3176788D1 true DE3176788D1 (en) 1988-07-21

Family

ID=15531968

Family Applications (2)

Application Number Title Priority Date Filing Date
DE8181305062T Expired DE3176788D1 (en) 1980-10-31 1981-10-27 High speed digital processor
DE8585107059T Expired - Lifetime DE3177238D1 (de) 1980-10-31 1981-10-27 Addierer fuer gleitkommadaten.

Family Applications After (1)

Application Number Title Priority Date Filing Date
DE8585107059T Expired - Lifetime DE3177238D1 (de) 1980-10-31 1981-10-27 Addierer fuer gleitkommadaten.

Country Status (4)

Country Link
US (3) US4511990A (de)
EP (2) EP0182963B1 (de)
JP (1) JPS5776634A (de)
DE (2) DE3176788D1 (de)

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Also Published As

Publication number Publication date
EP0051422B1 (de) 1988-06-15
US4620292A (en) 1986-10-28
EP0051422A3 (en) 1982-12-01
EP0182963A2 (de) 1986-06-04
DE3177238D1 (de) 1991-02-07
EP0182963B1 (de) 1991-01-02
US4511990A (en) 1985-04-16
JPS6242296B2 (de) 1987-09-08
US4592006A (en) 1986-05-27
JPS5776634A (en) 1982-05-13
EP0051422A2 (de) 1982-05-12
EP0182963A3 (en) 1986-10-01

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