PH19918A - Data processor performing a decimal multiply operation using a read only memory - Google Patents

Data processor performing a decimal multiply operation using a read only memory

Info

Publication number
PH19918A
PH19918A PH26635A PH26635A PH19918A PH 19918 A PH19918 A PH 19918A PH 26635 A PH26635 A PH 26635A PH 26635 A PH26635 A PH 26635A PH 19918 A PH19918 A PH 19918A
Authority
PH
Philippines
Prior art keywords
read
memory
data processor
processor performing
multiply operation
Prior art date
Application number
PH26635A
Other languages
English (en)
Inventor
Virendra S Negi
Steven A Tague
Original Assignee
Honeywell Inf Systems
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 Honeywell Inf Systems filed Critical Honeywell Inf Systems
Publication of PH19918A publication Critical patent/PH19918A/en

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
    • G06F7/52—Multiplying; Dividing
    • 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
    • G06F7/491—Computations with decimal numbers radix 12 or 20.
    • G06F7/4915—Multiplying; Dividing

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Computing Systems (AREA)
  • Computational Mathematics (AREA)
  • Mathematical Analysis (AREA)
  • Mathematical Optimization (AREA)
  • Pure & Applied Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • Complex Calculations (AREA)
  • Advance Control (AREA)
PH26635A 1980-12-24 1981-12-16 Data processor performing a decimal multiply operation using a read only memory PH19918A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/220,218 US4390961A (en) 1980-12-24 1980-12-24 Data processor performing a decimal multiply operation using a read only memory

Publications (1)

Publication Number Publication Date
PH19918A true PH19918A (en) 1986-08-14

Family

ID=22822594

Family Applications (1)

Application Number Title Priority Date Filing Date
PH26635A PH19918A (en) 1980-12-24 1981-12-16 Data processor performing a decimal multiply operation using a read only memory

Country Status (11)

Country Link
US (1) US4390961A (fi)
JP (1) JPS57172445A (fi)
KR (1) KR860001433B1 (fi)
AU (1) AU545326B2 (fi)
BR (1) BR8108198A (fi)
CA (1) CA1171181A (fi)
ES (1) ES8304680A1 (fi)
FI (1) FI78186C (fi)
MX (1) MX151461A (fi)
PH (1) PH19918A (fi)
YU (1) YU43057B (fi)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4566075A (en) * 1982-12-21 1986-01-21 Texas Instruments Incorporated Table lookup multiplier employing compressed data read only memory
AU573246B2 (en) * 1983-08-24 1988-06-02 Amdahl Corporation Signed multiplier
US4672360A (en) * 1983-09-30 1987-06-09 Honeywell Information Systems Inc. Apparatus and method for converting a number in binary format to a decimal format
US4608659A (en) * 1983-09-30 1986-08-26 Honeywell Information Systems Inc. Arithmetic logic unit with outputs indicating invalid computation results caused by invalid operands
US4638450A (en) * 1983-09-30 1987-01-20 Honeywell Information Systems Inc. Equal nine apparatus for supporting absolute value subtracts on decimal operands of unequal length
US4604722A (en) * 1983-09-30 1986-08-05 Honeywell Information Systems Inc. Decimal arithmetic logic unit for doubling or complementing decimal operand
US4604695A (en) * 1983-09-30 1986-08-05 Honeywell Information Systems Inc. Nibble and word addressable memory arrangement
US4615016A (en) * 1983-09-30 1986-09-30 Honeywell Information Systems Inc. Apparatus for performing simplified decimal multiplication by stripping leading zeroes
US4942547A (en) * 1985-04-11 1990-07-17 Honeywell Bull, Inc. Multiprocessors on a single semiconductor chip
US4799181A (en) * 1986-09-30 1989-01-17 Honeywell Bull Inc. BCD arithmetic using binary arithmetic and logical operations
US4999802A (en) * 1989-01-13 1991-03-12 International Business Machines Corporation Floating point arithmetic two cycle data flow
US5212662A (en) * 1989-01-13 1993-05-18 International Business Machines Corporation Floating point arithmetic two cycle data flow
US5440749A (en) * 1989-08-03 1995-08-08 Nanotronics Corporation High performance, low cost microprocessor architecture
US5822609A (en) * 1995-06-22 1998-10-13 International Business Machines Corporation Processing circuit for performing a convolution computation
US5737257A (en) * 1995-09-13 1998-04-07 Holtek Microelectronics, Inc. Method and apparatus for compression of integer multiplication table
US20050022322A1 (en) * 2003-05-12 2005-02-03 Eduardo Jimenez Powered toothbrush with curved neck and flexible shaft and single battery
US7167889B2 (en) * 2003-05-12 2007-01-23 International Business Machines Corporation Decimal multiplication for superscaler processors
US7266580B2 (en) * 2003-05-12 2007-09-04 International Business Machines Corporation Modular binary multiplier for signed and unsigned operands of variable widths
US7136893B2 (en) * 2003-07-10 2006-11-14 International Business Machines Corporation Decimal multiplication using digit recoding
US10241757B2 (en) 2016-09-30 2019-03-26 International Business Machines Corporation Decimal shift and divide instruction
US10127015B2 (en) * 2016-09-30 2018-11-13 International Business Machines Corporation Decimal multiply and shift instruction

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3551663A (en) * 1965-04-15 1970-12-29 Gen Electric Multiplication apparatus in a data processing system with a variable length multiplier
JPS4940037A (fi) * 1972-08-17 1974-04-15
JPS50159223A (fi) * 1974-06-12 1975-12-23
JPS5569850A (en) * 1978-11-22 1980-05-26 Toshiba Corp Decimal multiplication system

Also Published As

Publication number Publication date
YU306181A (en) 1983-12-31
AU7885181A (en) 1982-07-01
BR8108198A (pt) 1982-09-28
FI78186C (fi) 1989-06-12
MX151461A (es) 1984-11-28
YU43057B (en) 1989-02-28
ES508299A0 (es) 1983-03-01
FI814045L (fi) 1982-06-25
KR830008239A (ko) 1983-11-16
KR860001433B1 (ko) 1986-09-24
JPS57172445A (en) 1982-10-23
FI78186B (fi) 1989-02-28
AU545326B2 (en) 1985-07-11
US4390961A (en) 1983-06-28
CA1171181A (en) 1984-07-17
ES8304680A1 (es) 1983-03-01

Similar Documents

Publication Publication Date Title
PH19918A (en) Data processor performing a decimal multiply operation using a read only memory
GB2013008B (en) Data processing system using a separate input/output processor
DE3380279D1 (en) A data processor with parallel-operating operation units
EP0186958A3 (en) Digital data processor for matrix-vector multiplication digital data processor for matrix-vector multiplication
DE3265344D1 (en) Cash-register with a computer
JPS5727353A (en) Data processor
JPS5781666A (en) Data processor
GB2077965B (en) Data processing unit with pipelined operands
DE3277939D1 (en) Data processing apparatus including a peripheral processing complex
JPS57135493A (en) Data processor
JPS5496936A (en) Data processing memory
GB2079996B (en) Data processing apparatus with a predetermined read-only memory
GB2017361B (en) Data processor
EP0035647A3 (en) A data processing system
AU554993B2 (en) Data processor having carry apparatus supporting a decimal divide operation
DK268782A (da) Staklager til en databehandlingsenhed
JPS5723997A (en) Data processor
GB2144245B (en) A digital data processor for matrix/matrix multiplication
DE3166256D1 (en) Device for shortening the cycle time in a data processing device
JPS57202194A (en) Data processor
DE2965985D1 (en) Page addressing mechanism in a data processing system
DE3260807D1 (en) Instruction processing in a data processing machine
JPS5748768A (en) Data processor
DE3176857D1 (en) Data processing apparatus including a peripheral processing complex
GB2069198B (en) Pipelined data processor