AU538983B2 – Floating point processor
– Google Patents
AU538983B2 – Floating point processor
– Google Patents
Floating point processor
Info
Publication number
AU538983B2
AU538983B2
AU52235/79A
AU5223579A
AU538983B2
AU 538983 B2
AU538983 B2
AU 538983B2
AU 52235/79 A
AU52235/79 A
AU 52235/79A
AU 5223579 A
AU5223579 A
AU 5223579A
AU 538983 B2
AU538983 B2
AU 538983B2
Authority
AU
Australia
Prior art keywords
floating point
point processor
processor
floating
point
Prior art date
1978-12-11
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.)
Ceased
Application number
AU52235/79A
Other versions
AU5223579A
(en
Inventor
David L. Whipple
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.)
EMC Corp
Original Assignee
Data General 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.)
1978-12-11
Filing date
1979-10-26
Publication date
1984-09-06
1979-10-26
Application filed by Data General Corp
filed
Critical
Data General Corp
1980-07-10
Publication of AU5223579A
publication
Critical
patent/AU5223579A/en
1984-09-06
Application granted
granted
Critical
1984-09-06
Publication of AU538983B2
publication
Critical
patent/AU538983B2/en
1999-10-26
Anticipated expiration
legal-status
Critical
Status
Ceased
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
Classifications
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
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
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
AU52235/79A
1978-12-11
1979-10-26
Floating point processor
Ceased
AU538983B2
(en)
Applications Claiming Priority (2)
Application Number
Priority Date
Filing Date
Title
US968227
1978-12-11
US05/968,227
US4229801A
(en)
1978-12-11
1978-12-11
Floating point processor having concurrent exponent/mantissa operation
Publications (2)
Publication Number
Publication Date
AU5223579A
AU5223579A
(en)
1980-07-10
AU538983B2
true
AU538983B2
(en)
1984-09-06
Family
ID=25513938
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
AU52235/79A
Ceased
AU538983B2
(en)
1978-12-11
1979-10-26
Floating point processor
Country Status (8)
Country
Link
US
(1)
US4229801A
(en)
JP
(1)
JPS5582351A
(en)
AU
(1)
AU538983B2
(en)
CA
(1)
CA1123110A
(en)
DE
(1)
DE2949375A1
(en)
FR
(1)
FR2447061B1
(en)
GB
(1)
GB2038049B
(en)
NL
(1)
NL7908893A
(en)
Families Citing this family (28)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
JPS5776634A
(en)
*
1980-10-31
1982-05-13
Hitachi Ltd
Digital signal processor
US4464716A
(en)
*
1981-05-22
1984-08-07
Data General Corporation
Digital data processing system using unique formatting techniques for performing arithmetic ALU operations
US4468748A
(en)
*
1981-06-11
1984-08-28
Data General Corporation
Floating point computation unit having means for rounding the floating point computation result
US4509116A
(en)
*
1982-04-21
1985-04-02
Digital Equipment Corporation
Special instruction processing unit for data processing system
JPS59188740A
(en)
*
1983-04-11
1984-10-26
Hitachi Ltd
Floating adder
US4750110A
(en)
*
1983-04-18
1988-06-07
Motorola, Inc.
Method and apparatus for executing an instruction contingent upon a condition present in another data processor
US4943940A
(en)
*
1984-09-27
1990-07-24
Advanced Micro Devices, Inc.
Floating point add/subtract and multiplying assemblies sharing common normalization, rounding and exponential apparatus
US4758974A
(en)
*
1985-01-29
1988-07-19
American Telephone And Telegraph Company, At&T Bell Laboratories
Most significant digit location
JPH07104771B2
(en)
*
1985-05-10
1995-11-13
株式会社日立製作所
calculator
US5070475A
(en)
*
1985-11-14
1991-12-03
Data General Corporation
Floating point unit interface
US4763294A
(en)
*
1985-12-19
1988-08-09
Wang Laboratories, Inc.
Method and apparatus for floating point operations
US4858166A
(en)
*
1986-09-19
1989-08-15
Performance Semiconductor Corporation
Method and structure for performing floating point comparison
US4884231A
(en)
*
1986-09-26
1989-11-28
Performance Semiconductor Corporation
Microprocessor system with extended arithmetic logic unit
US4890253A
(en)
*
1988-12-28
1989-12-26
International Business Machines Corporation
Predetermination of result conditions of decimal operations
US4999803A
(en)
*
1989-06-29
1991-03-12
Digital Equipment Corporation
Floating point arithmetic system and method
US5253349A
(en)
*
1991-01-30
1993-10-12
International Business Machines Corporation
Decreasing processing time for type 1 dyadic instructions
US5195052A
(en)
*
1991-12-13
1993-03-16
International Business Machines Corporation
Circuit and method for performing integer power operations
JP3421933B2
(en)
*
1994-10-31
2003-06-30
弘之 河▲崎▼
Arithmetic processing unit and electronic computer
BR9509845A
(en)
1994-12-02
1997-12-30
Intel Corp
Microprocessor with compacting operation of composite operating elements
US5687340A
(en)
*
1995-05-16
1997-11-11
Hewlett-Packard Company
Reduced area floating point processor control logic utilizing a decoder between a control unit and the FPU
US5852726A
(en)
*
1995-12-19
1998-12-22
Intel Corporation
Method and apparatus for executing two types of instructions that specify registers of a shared logical register file in a stack and a non-stack referenced manner
US5940859A
(en)
*
1995-12-19
1999-08-17
Intel Corporation
Emptying packed data state during execution of packed data instructions
US6792523B1
(en)
1995-12-19
2004-09-14
Intel Corporation
Processor with instructions that operate on different data types stored in the same single logical register file
US5857096A
(en)
*
1995-12-19
1999-01-05
Intel Corporation
Microarchitecture for implementing an instruction to clear the tags of a stack reference register file
US5835748A
(en)
*
1995-12-19
1998-11-10
Intel Corporation
Method for executing different sets of instructions that cause a processor to perform different data type operations on different physical registers files that logically appear to software as a single aliased register file
US5701508A
(en)
1995-12-19
1997-12-23
Intel Corporation
Executing different instructions that cause different data type operations to be performed on single logical register file
JP2000068834A
(en)
1998-08-20
2000-03-03
Hiroyuki Kawasaki
Signal conversion method and signal converter
US7254696B2
(en)
*
2002-12-12
2007-08-07
Alacritech, Inc.
Functional-level instruction-set computer architecture for processing application-layer content-service requests such as file-access requests
Family Cites Families (9)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US3551665A
(en)
*
1966-09-13
1970-12-29
Ibm
Floating point binary adder utilizing completely sequential hardware
US3557357A
(en)
*
1967-07-14
1971-01-19
Gen Electric
Data processing system having time-shared storage means
US3697734A
(en)
*
1970-07-28
1972-10-10
Singer Co
Digital computer utilizing a plurality of parallel asynchronous arithmetic units
CA1013861A
(en)
*
1972-10-10
1977-07-12
Adrianus J. Van De Goor
Special instruction processor
US3871578A
(en)
*
1972-10-10
1975-03-18
Digital Equipment Corp
Data processing system for multiplying and intergerizing floating point numbers
US4075704A
(en)
*
1976-07-02
1978-02-21
Floating Point Systems, Inc.
Floating point data processor for high speech operation
US4128876A
(en)
*
1977-04-28
1978-12-05
International Business Machines Corporation
Synchronous microcode generated interface for system of microcoded data processors
US4130879A
(en)
*
1977-07-15
1978-12-19
Honeywell Information Systems Inc.
Apparatus for performing floating point arithmetic operations using submultiple storage
US4161784A
(en)
*
1978-01-05
1979-07-17
Honeywell Information Systems, Inc.
Microprogrammable floating point arithmetic unit capable of performing arithmetic operations on long and short operands
1978
1978-12-11
US
US05/968,227
patent/US4229801A/en
not_active
Expired – Lifetime
1979
1979-10-26
AU
AU52235/79A
patent/AU538983B2/en
not_active
Ceased
1979-10-31
GB
GB7937727A
patent/GB2038049B/en
not_active
Expired
1979-11-28
CA
CA340,790A
patent/CA1123110A/en
not_active
Expired
1979-12-07
DE
DE19792949375
patent/DE2949375A1/en
active
Granted
1979-12-10
FR
FR7930652A
patent/FR2447061B1/en
not_active
Expired
1979-12-10
NL
NL7908893A
patent/NL7908893A/en
not_active
Application Discontinuation
1979-12-11
JP
JP15984779A
patent/JPS5582351A/en
active
Granted
Also Published As
Publication number
Publication date
CA1123110A
(en)
1982-05-04
JPS5582351A
(en)
1980-06-21
GB2038049A
(en)
1980-07-16
JPH0128409B2
(en)
1989-06-02
DE2949375C2
(en)
1987-03-19
FR2447061B1
(en)
1986-02-21
GB2038049B
(en)
1983-07-20
US4229801A
(en)
1980-10-21
FR2447061A1
(en)
1980-08-14
DE2949375A1
(en)
1980-06-19
NL7908893A
(en)
1980-06-13
AU5223579A
(en)
1980-07-10
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