GB2386984B - A data processing system and method for performing a mathematical operation on multi bit binary integer numbers using floating point arithmetic - Google Patents

A data processing system and method for performing a mathematical operation on multi bit binary integer numbers using floating point arithmetic

Info

Publication number
GB2386984B
GB2386984B GB0207508A GB0207508A GB2386984B GB 2386984 B GB2386984 B GB 2386984B GB 0207508 A GB0207508 A GB 0207508A GB 0207508 A GB0207508 A GB 0207508A GB 2386984 B GB2386984 B GB 2386984B
Authority
GB
United Kingdom
Prior art keywords
data processing
processing system
floating point
bit binary
mathematical operation
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
GB0207508A
Other versions
GB2386984A (en
GB0207508D0 (en
Inventor
David Robinson
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB0207508A priority Critical patent/GB2386984B/en
Publication of GB0207508D0 publication Critical patent/GB0207508D0/en
Priority to AU2003226519A priority patent/AU2003226519A1/en
Priority to PCT/GB2003/001388 priority patent/WO2003083642A2/en
Publication of GB2386984A publication Critical patent/GB2386984A/en
Application granted granted Critical
Publication of GB2386984B publication Critical patent/GB2386984B/en
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
    • 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
    • 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
    • G06F7/52—Multiplying; Dividing
    • G06F7/523—Multiplying only
    • G06F7/53—Multiplying only in parallel-parallel fashion, i.e. both operands being entered in parallel
    • G06F7/5324—Multiplying only in parallel-parallel fashion, i.e. both operands being entered in parallel partitioned, i.e. using repetitively a smaller parallel parallel multiplier or using an array of such smaller multipliers
    • 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
    • G06F9/3001—Arithmetic instructions
    • G06F9/30014—Arithmetic instructions with variable precision
    • 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
    • G06F2207/3824—Accepting both fixed-point and floating-point numbers
    • 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
    • G06F7/49942—Significance control
    • G06F7/49947—Rounding
    • 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
    • G06F7/50—Adding; Subtracting
    • G06F7/505—Adding; Subtracting in bit-parallel fashion, i.e. having a different digit-handling circuit for each denomination
    • 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
    • G06F7/60—Methods or arrangements for performing computations using a digital non-denominational number representation, i.e. number representation without radix; Computing devices using combinations of denominational and non-denominational quantity representations, e.g. using difunction pulse trains, STEELE computers, phase computers
    • G06F7/72—Methods or arrangements for performing computations using a digital non-denominational number representation, i.e. number representation without radix; Computing devices using combinations of denominational and non-denominational quantity representations, e.g. using difunction pulse trains, STEELE computers, phase computers using residue arithmetic
    • 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
    • G06F7/60—Methods or arrangements for performing computations using a digital non-denominational number representation, i.e. number representation without radix; Computing devices using combinations of denominational and non-denominational quantity representations, e.g. using difunction pulse trains, STEELE computers, phase computers
    • G06F7/72—Methods or arrangements for performing computations using a digital non-denominational number representation, i.e. number representation without radix; Computing devices using combinations of denominational and non-denominational quantity representations, e.g. using difunction pulse trains, STEELE computers, phase computers using residue arithmetic
    • G06F7/723—Modular exponentiation
GB0207508A 2002-03-28 2002-03-28 A data processing system and method for performing a mathematical operation on multi bit binary integer numbers using floating point arithmetic Expired - Fee Related GB2386984B (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB0207508A GB2386984B (en) 2002-03-28 2002-03-28 A data processing system and method for performing a mathematical operation on multi bit binary integer numbers using floating point arithmetic
AU2003226519A AU2003226519A1 (en) 2002-03-28 2003-03-28 A data processing system and method for performing a mathematical operation on multi bit binary integer numbers using floating point arithmetic
PCT/GB2003/001388 WO2003083642A2 (en) 2002-03-28 2003-03-28 A data processing system and method for performing a mathematical operation on multi bit binary integer numbers using floating point arithmetic

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0207508A GB2386984B (en) 2002-03-28 2002-03-28 A data processing system and method for performing a mathematical operation on multi bit binary integer numbers using floating point arithmetic

Publications (3)

Publication Number Publication Date
GB0207508D0 GB0207508D0 (en) 2002-05-08
GB2386984A GB2386984A (en) 2003-10-01
GB2386984B true GB2386984B (en) 2005-07-20

Family

ID=9934032

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0207508A Expired - Fee Related GB2386984B (en) 2002-03-28 2002-03-28 A data processing system and method for performing a mathematical operation on multi bit binary integer numbers using floating point arithmetic

Country Status (3)

Country Link
AU (1) AU2003226519A1 (en)
GB (1) GB2386984B (en)
WO (1) WO2003083642A2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10505714B2 (en) 2017-08-31 2019-12-10 Micro Focus Llc Floating point cohort based encryption

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5710730A (en) * 1995-03-31 1998-01-20 International Business Machines Corporation Divide to integer
US6175847B1 (en) * 1998-07-22 2001-01-16 Intrinsity, Inc. Shifting for parallel normalization and rounding technique for floating point arithmetic operations

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5303174A (en) * 1991-10-07 1994-04-12 Nec Corporation Floating pointing arithmetic operation system
US5768170A (en) * 1996-07-25 1998-06-16 Motorola Inc. Method and apparatus for performing microprocessor integer division operations using floating point hardware

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5710730A (en) * 1995-03-31 1998-01-20 International Business Machines Corporation Divide to integer
US6175847B1 (en) * 1998-07-22 2001-01-16 Intrinsity, Inc. Shifting for parallel normalization and rounding technique for floating point arithmetic operations

Also Published As

Publication number Publication date
GB2386984A (en) 2003-10-01
WO2003083642A3 (en) 2003-12-31
WO2003083642A2 (en) 2003-10-09
AU2003226519A1 (en) 2003-10-13
GB0207508D0 (en) 2002-05-08
AU2003226519A8 (en) 2003-10-13

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20180328