DE3578239D1 - Verfahren fuer die ausbreitung des exponentbereichs in einem gleitkommaprozessor. - Google Patents

Verfahren fuer die ausbreitung des exponentbereichs in einem gleitkommaprozessor.

Info

Publication number
DE3578239D1
DE3578239D1 DE8585105238T DE3578239T DE3578239D1 DE 3578239 D1 DE3578239 D1 DE 3578239D1 DE 8585105238 T DE8585105238 T DE 8585105238T DE 3578239 T DE3578239 T DE 3578239T DE 3578239 D1 DE3578239 D1 DE 3578239D1
Authority
DE
Germany
Prior art keywords
expansion
command processor
sliding command
exponent area
exponent
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 - Fee Related
Application number
DE8585105238T
Other languages
English (en)
Inventor
Anthony Hassitt
Alan Hersh Karp
Randolph Gregory Scarborough
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
Application filed by International Business Machines Corp filed Critical International Business Machines Corp
Application granted granted Critical
Publication of DE3578239D1 publication Critical patent/DE3578239D1/de
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • 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
    • 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
    • G06F2207/3812—Devices capable of handling different types of numbers
    • G06F2207/382—Reconfigurable for different fixed word lengths
    • 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
DE8585105238T 1984-05-25 1985-04-30 Verfahren fuer die ausbreitung des exponentbereichs in einem gleitkommaprozessor. Expired - Fee Related DE3578239D1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/614,410 US4603323A (en) 1984-05-25 1984-05-25 Method for extending the exponent range of an IBM 370-type floating point processor

Publications (1)

Publication Number Publication Date
DE3578239D1 true DE3578239D1 (de) 1990-07-19

Family

ID=24461143

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8585105238T Expired - Fee Related DE3578239D1 (de) 1984-05-25 1985-04-30 Verfahren fuer die ausbreitung des exponentbereichs in einem gleitkommaprozessor.

Country Status (4)

Country Link
US (1) US4603323A (de)
EP (1) EP0162348B1 (de)
JP (1) JPS60254324A (de)
DE (1) DE3578239D1 (de)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4773035A (en) * 1984-10-19 1988-09-20 Amdahl Corporation Pipelined data processing system utilizing ideal floating point execution condition detection
JPS61141033A (ja) * 1984-12-14 1986-06-28 Hitachi Ltd 演算処理装置
JPS61141034A (ja) * 1984-12-14 1986-06-28 Hitachi Ltd 演算結果限界割出し装置
US4847802A (en) * 1986-06-12 1989-07-11 Advanced Micro Devices, Inc. Method and apparatus for identifying the precision of an operand in a multiprecision floating-point processor
US7158031B2 (en) * 1992-08-12 2007-01-02 Micron Technology, Inc. Thin, flexible, RFID label and system for use
US5687359A (en) * 1995-03-31 1997-11-11 International Business Machines Corporation Floating point processor supporting hexadecimal and binary modes using common instructions with memory storing a pair of representations for each value
US6212539B1 (en) * 1998-10-10 2001-04-03 Institute For The Development Of Emerging Architectures, L.L.C. Methods and apparatus for handling and storing bi-endian words in a floating-point processor
US7290024B2 (en) * 2003-12-18 2007-10-30 Intel Corporation Methods and apparatus for performing mathematical operations using scaled integers
US8744198B1 (en) * 2007-11-20 2014-06-03 Lucasfilm Entertainment Company Ltd. Image compression and decompression
US8412760B2 (en) * 2008-07-22 2013-04-02 International Business Machines Corporation Dynamic range adjusting floating point execution unit
US9507564B2 (en) * 2014-04-14 2016-11-29 Oracle International Corporation Processing fixed and variable length numbers

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1250659B (de) * 1964-04-06 1967-09-21 International Business Machines Corporation, Armonk, NY (V St A) Mikroprogrammgesteuerte Datenverarbeitungsanlage
FR1435080A (fr) * 1965-03-02 1966-04-15 Centre Nat Rech Scient Procédé pour améliorer les conditions d'utilisation d'une calculatrice arithmétique et machine à calculer utilisant ce procédé
US3742198A (en) * 1971-03-19 1973-06-26 Bell Telephone Labor Inc Apparatus for utilizing a three-field word to represent a floating point number

Also Published As

Publication number Publication date
EP0162348B1 (de) 1990-06-13
EP0162348A3 (en) 1986-10-22
JPS60254324A (ja) 1985-12-16
EP0162348A2 (de) 1985-11-27
US4603323A (en) 1986-07-29
JPH049340B2 (de) 1992-02-19

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee