JPS5520505A - Division system for binary number - Google Patents

Division system for binary number

Info

Publication number
JPS5520505A
JPS5520505A JP7888478A JP7888478A JPS5520505A JP S5520505 A JPS5520505 A JP S5520505A JP 7888478 A JP7888478 A JP 7888478A JP 7888478 A JP7888478 A JP 7888478A JP S5520505 A JPS5520505 A JP S5520505A
Authority
JP
Japan
Prior art keywords
bit
bits
quotient
division system
rom
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
JP7888478A
Other languages
Japanese (ja)
Other versions
JPS5626866B2 (en
Inventor
Osamu Katakura
Toshio Goto
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.)
Panafacom Ltd
Original Assignee
Panafacom 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 Panafacom Ltd filed Critical Panafacom Ltd
Priority to JP7888478A priority Critical patent/JPS5520505A/en
Publication of JPS5520505A publication Critical patent/JPS5520505A/en
Publication of JPS5626866B2 publication Critical patent/JPS5626866B2/ja
Granted legal-status Critical Current

Links

Abstract

PURPOSE: To establish the binary division system in which the function as the quotient estimation table is sufficiently performed, the data amount is saved,i.e., the number of 4×1K ROM's is halved, and the quotinent is obtained by 4-bit each.
CONSTITUTION: The address in 10-bit of the quotient estimation table of 4×1K-bit is expressed as ▵▵××××○○○○ in bit unit. Then, the bits belonging to each table are as listed in the table. The dividend(AR1) and the divisor(AR2) of the initial data format are 32-bit of #0 to #31, and the upper rank 8-bit is set to 0 initially. The bits to obtain the quotient by AR1 and AR2 are respectively #4 to #13 and #8 to #15. The five bits of #8 to #12 are fed to the decoder 11, they are decoded in the table, and either of the tables 14 to 17 respectively consisting of the ROM of 4×1K capacity is selected. Either of #10 to #13 or #12 to #15 of AR2 is selected for the address in each table, the 3 bits in it and the 7 bits in AR1 are selected and the result is shown in 18.
COPYRIGHT: (C)1980,JPO&Japio
JP7888478A 1978-06-29 1978-06-29 Division system for binary number Granted JPS5520505A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7888478A JPS5520505A (en) 1978-06-29 1978-06-29 Division system for binary number

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7888478A JPS5520505A (en) 1978-06-29 1978-06-29 Division system for binary number

Publications (2)

Publication Number Publication Date
JPS5520505A true JPS5520505A (en) 1980-02-14
JPS5626866B2 JPS5626866B2 (en) 1981-06-22

Family

ID=13674231

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7888478A Granted JPS5520505A (en) 1978-06-29 1978-06-29 Division system for binary number

Country Status (1)

Country Link
JP (1) JPS5520505A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5833753A (en) * 1981-08-24 1983-02-28 Fujitsu Ltd Divider

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61113375U (en) * 1984-12-25 1986-07-17

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5135245A (en) * 1974-09-20 1976-03-25 Hitachi Ltd

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5135245A (en) * 1974-09-20 1976-03-25 Hitachi Ltd

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5833753A (en) * 1981-08-24 1983-02-28 Fujitsu Ltd Divider

Also Published As

Publication number Publication date
JPS5626866B2 (en) 1981-06-22

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