JPS56152048A - Detector for sequence error of microprogram - Google Patents

Detector for sequence error of microprogram

Info

Publication number
JPS56152048A
JPS56152048A JP5457580A JP5457580A JPS56152048A JP S56152048 A JPS56152048 A JP S56152048A JP 5457580 A JP5457580 A JP 5457580A JP 5457580 A JP5457580 A JP 5457580A JP S56152048 A JPS56152048 A JP S56152048A
Authority
JP
Japan
Prior art keywords
check information
register
circuit
sequence
microprogram
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
JP5457580A
Other languages
Japanese (ja)
Inventor
Hitoshi Yamazaki
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric 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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP5457580A priority Critical patent/JPS56152048A/en
Publication of JPS56152048A publication Critical patent/JPS56152048A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00—Error detection; Error correction; Monitoring
    • G06F11/28—Error detection; Error correction; Monitoring by checking the correct order of processing

Abstract

PURPOSE:To detect the sequence error of a microprogram effectively and independently of an address generation part, by adding less hardware by appending sequence check information to each microinstruction. CONSTITUTION:On the basis of a microaddress generated by sequence control circuit 3, sequence check information 2 is read out of control storage circuit 4 together with microinstruction 1 and then stored in the 1st register 5. Next, adder 6 adds one to the check information in register 5 and the result is stored in the 2nd register 7 to store new check information in register 5. Then, the check information in register 5 is checked by zero deciding circuit 9 to make sure that the check information is not zero, and the output of noncoincidence detecting circuit 8 which has detected the coincidence between the outputs of registers 5 and 7 and the output of circuit 9 are ANDed by AND circuit 10, thereby detecting the sequence error of a program independently of an address generation part.
JP5457580A 1980-04-24 1980-04-24 Detector for sequence error of microprogram Pending JPS56152048A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5457580A JPS56152048A (en) 1980-04-24 1980-04-24 Detector for sequence error of microprogram

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5457580A JPS56152048A (en) 1980-04-24 1980-04-24 Detector for sequence error of microprogram

Publications (1)

Publication Number Publication Date
JPS56152048A true JPS56152048A (en) 1981-11-25

Family

ID=12974488

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5457580A Pending JPS56152048A (en) 1980-04-24 1980-04-24 Detector for sequence error of microprogram

Country Status (1)

Country Link
JP (1) JPS56152048A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS626345A (en) * 1985-06-28 1987-01-13 インタ−ナショナル　ビジネス　マシ−ンズ　コ−ポレ−ション Execution time inspection for micro instruction system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS626345A (en) * 1985-06-28 1987-01-13 インタ−ナショナル　ビジネス　マシ−ンズ　コ−ポレ−ション Execution time inspection for micro instruction system
JPH0444294B2 (en) * 1985-06-28 1992-07-21 Intaanashonaru Bijinesu Mashiinzu Corp

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