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JPS5462748A - Diagnostic system - Google Patents

Diagnostic system

Info

Publication number
JPS5462748A
JPS5462748A JP12926877A JP12926877A JPS5462748A JP S5462748 A JPS5462748 A JP S5462748A JP 12926877 A JP12926877 A JP 12926877A JP 12926877 A JP12926877 A JP 12926877A JP S5462748 A JPS5462748 A JP S5462748A
Authority
JP
Japan
Prior art keywords
instruction
firmware
pua31
lfw
diagnosis
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
JP12926877A
Other languages
Japanese (ja)
Other versions
JPS6029131B2 (en
Inventor
Ryozo Maeno
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
Tokyo Shibaura Electric 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP52129268A priority Critical patent/JPS6029131B2/en
Publication of JPS5462748A publication Critical patent/JPS5462748A/en
Publication of JPS6029131B2 publication Critical patent/JPS6029131B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Information Transfer Between Computers (AREA)
  • Test And Diagnosis Of Digital Computers (AREA)

Abstract

PURPOSE: To exercise highly analyzable diagnosis with a little overhead, by loading diagnostic firmware from a main memory unit to another processor and by starting diagnosis after checking whether or not it has been loaded properly.
CONSTITUTION: Information processor PUA31 transmites a load firmware LFW instruction to information processor PUB33. Processor PUB33 discriminates through the firmware inside POM35 whether the instruction is a normal instruction or the LFW instruction, and when it is the LFW instruction, firmware data FWD is trnasferred from region A of main memory unit MMU32 to RAM36. The parity check of the transferred FWD is made and then, information on whether the transfer has been done properly or not is sent by firmware FW inside ROM35 to PUA31 through interruption. When the instruction from PUA31 is a normal instruction, on the other hand, FW moves from ROM35 into RAM36 and allows PU34 to operate. In this way, the diagnosis is exercised by the loaded FW, so that its overhead will decrease and its analytic performance will improve as well.
COPYRIGHT: (C)1979,JPO&Japio
JP52129268A 1977-10-28 1977-10-28 Diagnostic method Expired JPS6029131B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP52129268A JPS6029131B2 (en) 1977-10-28 1977-10-28 Diagnostic method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP52129268A JPS6029131B2 (en) 1977-10-28 1977-10-28 Diagnostic method

Publications (2)

Publication Number Publication Date
JPS5462748A true JPS5462748A (en) 1979-05-21
JPS6029131B2 JPS6029131B2 (en) 1985-07-09

Family

ID=15005368

Family Applications (1)

Application Number Title Priority Date Filing Date
JP52129268A Expired JPS6029131B2 (en) 1977-10-28 1977-10-28 Diagnostic method

Country Status (1)

Country Link
JP (1) JPS6029131B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58134345A (en) * 1982-02-05 1983-08-10 Usac Electronics Ind Co Ltd Diagnosing system of microcomputer
JPS62229339A (en) * 1986-03-17 1987-10-08 Fujitsu Ltd Diagnosis system for microprogram

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58134345A (en) * 1982-02-05 1983-08-10 Usac Electronics Ind Co Ltd Diagnosing system of microcomputer
JPS62229339A (en) * 1986-03-17 1987-10-08 Fujitsu Ltd Diagnosis system for microprogram

Also Published As

Publication number Publication date
JPS6029131B2 (en) 1985-07-09

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