JPS5578353A - Maintenance unit - Google Patents

Maintenance unit

Info

Publication number
JPS5578353A
JPS5578353A JP15206178A JP15206178A JPS5578353A JP S5578353 A JPS5578353 A JP S5578353A JP 15206178 A JP15206178 A JP 15206178A JP 15206178 A JP15206178 A JP 15206178A JP S5578353 A JPS5578353 A JP S5578353A
Authority
JP
Japan
Prior art keywords
registers
address registers
trace
stop
store
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
JP15206178A
Other languages
Japanese (ja)
Inventor
Kiyoshi Kuno
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 JP15206178A priority Critical patent/JPS5578353A/en
Publication of JPS5578353A publication Critical patent/JPS5578353A/en
Pending legal-status Critical Current

Links

Landscapes

  • Debugging And Monitoring (AREA)

Abstract

PURPOSE: To improve a debug function considerably by preparing many start address registers and stop address registers to select plural trace positions of a program.
CONSTITUTION: Start address registers 21a, 21b, and 21c to store start addresses of trace and stop address registers 22a, 22b, 22c to store stop addresses of trace are provided. Pairs of registers 21a, 21b, and 21c and registers 22a, 22b, and 22c are selected one by one successively by a selection circuit consisting of AND circuit 23 and shift register 24. As a result, a debug function can be improved considerably.
COPYRIGHT: (C)1980,JPO&Japio
JP15206178A 1978-12-11 1978-12-11 Maintenance unit Pending JPS5578353A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15206178A JPS5578353A (en) 1978-12-11 1978-12-11 Maintenance unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15206178A JPS5578353A (en) 1978-12-11 1978-12-11 Maintenance unit

Publications (1)

Publication Number Publication Date
JPS5578353A true JPS5578353A (en) 1980-06-12

Family

ID=15532193

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15206178A Pending JPS5578353A (en) 1978-12-11 1978-12-11 Maintenance unit

Country Status (1)

Country Link
JP (1) JPS5578353A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5755042U (en) * 1980-09-16 1982-03-31
JPS57110644U (en) * 1980-12-26 1982-07-08
JPS5880751A (en) * 1981-11-06 1983-05-14 Mitsubishi Electric Corp Data processor
JPS58115516A (en) * 1981-12-29 1983-07-09 Fujitsu Ltd Bus tracer
JPS61213937A (en) * 1985-03-19 1986-09-22 Fujitsu Ltd Tracing system for information processing system
JPH03161846A (en) * 1989-11-20 1991-07-11 Fujitsu General Ltd Debugging circuit

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5755042U (en) * 1980-09-16 1982-03-31
JPS57110644U (en) * 1980-12-26 1982-07-08
JPS5880751A (en) * 1981-11-06 1983-05-14 Mitsubishi Electric Corp Data processor
JPS58115516A (en) * 1981-12-29 1983-07-09 Fujitsu Ltd Bus tracer
JPS61213937A (en) * 1985-03-19 1986-09-22 Fujitsu Ltd Tracing system for information processing system
JPH03161846A (en) * 1989-11-20 1991-07-11 Fujitsu General Ltd Debugging circuit

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