JPS56116151A - Operating device of floating decimal point - Google Patents

Operating device of floating decimal point

Info

Publication number
JPS56116151A
JPS56116151A JP1761480A JP1761480A JPS56116151A JP S56116151 A JPS56116151 A JP S56116151A JP 1761480 A JP1761480 A JP 1761480A JP 1761480 A JP1761480 A JP 1761480A JP S56116151 A JPS56116151 A JP S56116151A
Authority
JP
Japan
Prior art keywords
output
input
circuit
decimal point
processor unit
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.)
Granted
Application number
JP1761480A
Other languages
Japanese (ja)
Other versions
JPS648377B2 (en
Inventor
Satoshi Hasegawa
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric Co 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP1761480A priority Critical patent/JPS56116151A/en
Publication of JPS56116151A publication Critical patent/JPS56116151A/en
Publication of JPS648377B2 publication Critical patent/JPS648377B2/ja
Granted 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
    • G06F7/491—Computations with decimal numbers radix 12 or 20.

Abstract

PURPOSE:To enable high speed operation with static control from a main processor unit, by making a circuit small-sized through the common usage of modules. CONSTITUTION:Operating number and operated number are stored to input registers 200, 201 and they are input to the 1st selector circuit 202. To the 1st selector circuit 202, the output from the said input register and the output of the operation circuit 203 performing the operation of floating decimal point are input, and the output is output to the operation circuit 203 through the selection with the control signal from the main processor unit. The output of the operation circuit 203 is input to the 2nd selector circuit 204 and the result of operation is stored in the output register 205 with the control signal from the main processor unit.
JP1761480A 1980-02-15 1980-02-15 Operating device of floating decimal point Granted JPS56116151A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1761480A JPS56116151A (en) 1980-02-15 1980-02-15 Operating device of floating decimal point

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1761480A JPS56116151A (en) 1980-02-15 1980-02-15 Operating device of floating decimal point

Publications (2)

Publication Number Publication Date
JPS56116151A true JPS56116151A (en) 1981-09-11
JPS648377B2 JPS648377B2 (en) 1989-02-14

Family

ID=11948750

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1761480A Granted JPS56116151A (en) 1980-02-15 1980-02-15 Operating device of floating decimal point

Country Status (1)

Country Link
JP (1) JPS56116151A (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS502438A (en) * 1973-05-08 1975-01-11
JPS503539A (en) * 1973-05-14 1975-01-14
JPS5071241A (en) * 1973-07-10 1975-06-13
JPS5413239A (en) * 1977-06-30 1979-01-31 Yamatake Honeywell Co Ltd Calculating unit

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS502438A (en) * 1973-05-08 1975-01-11
JPS503539A (en) * 1973-05-14 1975-01-14
JPS5071241A (en) * 1973-07-10 1975-06-13
JPS5413239A (en) * 1977-06-30 1979-01-31 Yamatake Honeywell Co Ltd Calculating unit

Also Published As

Publication number Publication date
JPS648377B2 (en) 1989-02-14

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