JPS55150041A - Arithmetic processor - Google Patents

Arithmetic processor

Info

Publication number
JPS55150041A
JPS55150041A JP5704279A JP5704279A JPS55150041A JP S55150041 A JPS55150041 A JP S55150041A JP 5704279 A JP5704279 A JP 5704279A JP 5704279 A JP5704279 A JP 5704279A JP S55150041 A JPS55150041 A JP S55150041A
Authority
JP
Japan
Prior art keywords
decimal point
arithmetic unit
point arithmetic
floating decimal
fpp11
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.)
Pending
Application number
JP5704279A
Other languages
Japanese (ja)
Inventor
Yoshinari Hiraoka
Tadaaki Bando
Yasushi Fukunaga
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP5704279A priority Critical patent/JPS55150041A/en
Publication of JPS55150041A publication Critical patent/JPS55150041A/en
Pending legal-status Critical Current

Links

Landscapes

  • Advance Control (AREA)

Abstract

PURPOSE: To secure the parallel operation for the highly efficient CPU with the floating decimal point arithmetic unit for the microcomputer system incorporating the floating decimal point arithmetic unit, by providing the memory access function.
CONSTITUTION: Trap routine memory 112 storing the processing program of the trap is provided into floating decimal point arithmetic unit FPP11 to secure the memory access function. As a result, the load of CPU10 can be reduced, at the same time ensuring the highly efficient parallel operation between CPU10 and unit FPP11.
COPYRIGHT: (C)1980,JPO&Japio
JP5704279A 1979-05-11 1979-05-11 Arithmetic processor Pending JPS55150041A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5704279A JPS55150041A (en) 1979-05-11 1979-05-11 Arithmetic processor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5704279A JPS55150041A (en) 1979-05-11 1979-05-11 Arithmetic processor

Publications (1)

Publication Number Publication Date
JPS55150041A true JPS55150041A (en) 1980-11-21

Family

ID=13044380

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5704279A Pending JPS55150041A (en) 1979-05-11 1979-05-11 Arithmetic processor

Country Status (1)

Country Link
JP (1) JPS55150041A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60142743A (en) * 1983-12-29 1985-07-27 インタ−ナショナル　ビジネス　マシ−ンズ　コ−ポレ−ション Internal bus system
JPS6380358A (en) * 1986-09-24 1988-04-11 Daikin Ind Ltd Data processor

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60142743A (en) * 1983-12-29 1985-07-27 インタ−ナショナル　ビジネス　マシ−ンズ　コ−ポレ−ション Internal bus system
JPH0135367B2 (en) * 1983-12-29 1989-07-25 Intaanashonaru Bijinesu Mashiinzu Corp
JPS6380358A (en) * 1986-09-24 1988-04-11 Daikin Ind Ltd Data processor

Similar Documents

Publication Publication Date Title
JPS55112651A (en) Virtual computer system
JPS5326539A (en) Data exchenge system
JPS55150041A (en) Arithmetic processor
JPS5334442A (en) Multi-processor system
JPS55164922A (en) Multimicrocomputer
JPS5318357A (en) Arithmetic unit having check functions
JPS5285444A (en) Information processing system
JPS5319736A (en) Priority level determination and its unit
JPS5356933A (en) Memory unit provided with self-diagnostic function
JPS5414647A (en) Signal processor
JPS5533236A (en) Parameter control system
JPS5329043A (en) Trouble detector of computer
JPS543437A (en) Cash memory control system
JPS53125838A (en) Computer control system for electronic copying machine
JPS5330243A (en) Arithmetic processor
JPS5621216A (en) Program loading system
JPS5621214A (en) Loading system of program
JPS5621215A (en) Loading system
JPS5437645A (en) Computer system
JPS52104833A (en) Depacking device
JPS55134423A (en) Input/output control system
JPS5361932A (en) Array processor
JPS54107239A (en) Program execution order control system
JPS56103740A (en) Decimal divider
JPS52100946A (en) Micro processor