JPS5544668A - Rounding operation control system - Google Patents

Rounding operation control system

Info

Publication number
JPS5544668A
JPS5544668A JP11839478A JP11839478A JPS5544668A JP S5544668 A JPS5544668 A JP S5544668A JP 11839478 A JP11839478 A JP 11839478A JP 11839478 A JP11839478 A JP 11839478A JP S5544668 A JPS5544668 A JP S5544668A
Authority
JP
Japan
Prior art keywords
rounding
result
data
integer
case
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
JP11839478A
Other languages
Japanese (ja)
Other versions
JPS6027416B2 (en
Inventor
Tomohiro Shimizu
Yoshinobu Muranaga
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.)
Casio Computer Co Ltd
Original Assignee
Casio Computer 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 Casio Computer Co Ltd filed Critical Casio Computer Co Ltd
Priority to JP53118394A priority Critical patent/JPS6027416B2/en
Publication of JPS5544668A publication Critical patent/JPS5544668A/en
Publication of JPS6027416B2 publication Critical patent/JPS6027416B2/en
Expired legal-status Critical Current

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  • Calculators And Similar Devices (AREA)

Abstract

PURPOSE: To secure the coincidence between the display data and the internal holding data and thus to increase the operation accuracy of the continuous operation by memorizing the data before the rounding operation into the register in case the rounding operation result does not show an integer.
CONSTITUTION: Operation part 4 carries out the operation by receiving the data from RAM2 which is a register possessing the memory capacity larger by one digit than the display digit number of display part 5. The operation result is given to memory M1 as well as to rounding circuit 4b to perform the rounding process to give rounding to the nearest whole number for the lowest digit of the data, and then given to memory M2. In this case, the result of the rounding process undergoes the judgement by integer decision circuit 8 whether it is an integer or not. And in case the result features an integer, the contents of M2 is written into RAM2; while the contents of M1 is written into RAM2 in case the result is not an integer respectively. As a result, the coincidence is obtained between the display data after the rounding process and the internal holding data, thus increasing the accuracy for the continuous operation.
COPYRIGHT: (C)1980,JPO&Japio
JP53118394A 1978-09-26 1978-09-26 Rounding operation control method Expired JPS6027416B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP53118394A JPS6027416B2 (en) 1978-09-26 1978-09-26 Rounding operation control method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP53118394A JPS6027416B2 (en) 1978-09-26 1978-09-26 Rounding operation control method

Publications (2)

Publication Number Publication Date
JPS5544668A true JPS5544668A (en) 1980-03-29
JPS6027416B2 JPS6027416B2 (en) 1985-06-28

Family

ID=14735583

Family Applications (1)

Application Number Title Priority Date Filing Date
JP53118394A Expired JPS6027416B2 (en) 1978-09-26 1978-09-26 Rounding operation control method

Country Status (1)

Country Link
JP (1) JPS6027416B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01136232A (en) * 1987-11-24 1989-05-29 Nec Corp Numerical arithmetic processor
JPH0512385A (en) * 1990-04-03 1993-01-22 Mitsubishi Electric Corp Cad/cam device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01136232A (en) * 1987-11-24 1989-05-29 Nec Corp Numerical arithmetic processor
JPH0512385A (en) * 1990-04-03 1993-01-22 Mitsubishi Electric Corp Cad/cam device

Also Published As

Publication number Publication date
JPS6027416B2 (en) 1985-06-28

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