JPS642146A - Arithmetic processing unit - Google Patents

Arithmetic processing unit

Info

Publication number
JPS642146A
JPS642146A JP62156525A JP15652587A JPS642146A JP S642146 A JPS642146 A JP S642146A JP 62156525 A JP62156525 A JP 62156525A JP 15652587 A JP15652587 A JP 15652587A JP S642146 A JPS642146 A JP S642146A
Authority
JP
Japan
Prior art keywords
register
information
register file
maintained
written
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
JP62156525A
Other languages
Japanese (ja)
Other versions
JPH012146A (en
Inventor
Shuichi Hara
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
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 Toshiba Corp filed Critical Toshiba Corp
Priority to JP62-156525A priority Critical patent/JPH012146A/en
Priority claimed from JP62-156525A external-priority patent/JPH012146A/en
Publication of JPS642146A publication Critical patent/JPS642146A/en
Publication of JPH012146A publication Critical patent/JPH012146A/en
Pending legal-status Critical Current

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  • Retry When Errors Occur (AREA)

Abstract

PURPOSE: To enable an instruction to be retried when a hardware trouble occurs by executing arithmetic operation and write with an identical cycle and maintaining the information of one cycle before the hardware trouble occurs.
CONSTITUTION: When data is written in a register file 1 according to the execution of the instruction the information maintained in the register file 1 before rewriting is maintained by a first register 6, register positional information on which information maintained in the first register 6 is written is maintained by a second register 7. Besides a flip-flop 8 indicates whether the data is written in the register file 1 at a former step or not. In a recovery processing routine after detecting the trouble, a control means restores the data in the register file 1 to the state before it is rewritten based on the content of the first and second registers 6 and 7 when the information is decided to be rewritten in the register file 1. Thus, the possibility which the instruction can be retried is remarkably raised.
COPYRIGHT: (C)1989,JPO&Japio
JP62-156525A 1987-06-25 arithmetic processing unit Pending JPH012146A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62-156525A JPH012146A (en) 1987-06-25 arithmetic processing unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62-156525A JPH012146A (en) 1987-06-25 arithmetic processing unit

Publications (2)

Publication Number Publication Date
JPS642146A true JPS642146A (en) 1989-01-06
JPH012146A JPH012146A (en) 1989-01-06

Family

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102021111842A1 (en) 2020-05-15 2021-11-18 Toyota Jidosha Kabushiki Kaisha Fuel cell stack

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102021111842A1 (en) 2020-05-15 2021-11-18 Toyota Jidosha Kabushiki Kaisha Fuel cell stack

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