JPS644840A - In-circuit emulator - Google Patents

In-circuit emulator

Info

Publication number
JPS644840A
JPS644840A JP62161596A JP16159687A JPS644840A JP S644840 A JPS644840 A JP S644840A JP 62161596 A JP62161596 A JP 62161596A JP 16159687 A JP16159687 A JP 16159687A JP S644840 A JPS644840 A JP S644840A
Authority
JP
Japan
Prior art keywords
target
program
emulation memory
address
mup1
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
JP62161596A
Other languages
Japanese (ja)
Other versions
JP2575024B2 (en
Inventor
Yoshio Yoshida
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.)
Yokogawa Electric Corp
Original Assignee
Yokogawa 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 Yokogawa Electric Corp filed Critical Yokogawa Electric Corp
Priority to JP62161596A priority Critical patent/JP2575024B2/en
Publication of JPS644840A publication Critical patent/JPS644840A/en
Application granted granted Critical
Publication of JP2575024B2 publication Critical patent/JP2575024B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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  • Test And Diagnosis Of Digital Computers (AREA)

Abstract

PURPOSE:To debug a target program of a large capacity by an emulation memory of a small capacity, by adding a breaking signal to an address mapping RAM, and adding a means for storing a program counter of a target muP at the time when the breaking signal has been outputted. CONSTITUTION:When the execution of a target microprocessor muP1 has reached an address which is not brought to mapping on an emulation memory 3, the target muP1 is stopped, and by a control CPU 6, a part of a data of the emulation memory 3 is saved to a secondary storage device 7. Simultaneously, a program containing an address which has been broken is saved from the secondary storage device 7 and transferred to a part of the emulation memory 3 which has become a dead area, and from the address which has been broken, the program is re-executed. In such a way, a target program of a large capacity can be debugged by the emulation memory 3 of a small capacity.
JP62161596A 1987-06-29 1987-06-29 In-circuit emulator Expired - Lifetime JP2575024B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62161596A JP2575024B2 (en) 1987-06-29 1987-06-29 In-circuit emulator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62161596A JP2575024B2 (en) 1987-06-29 1987-06-29 In-circuit emulator

Publications (2)

Publication Number Publication Date
JPS644840A true JPS644840A (en) 1989-01-10
JP2575024B2 JP2575024B2 (en) 1997-01-22

Family

ID=15738149

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62161596A Expired - Lifetime JP2575024B2 (en) 1987-06-29 1987-06-29 In-circuit emulator

Country Status (1)

Country Link
JP (1) JP2575024B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4955127A (en) * 1987-08-10 1990-09-11 Fanuc Ltd. Automatic tool exchanging device for a machine tool
JPH04107745A (en) * 1990-08-29 1992-04-09 Nec Ic Microcomput Syst Ltd In-circuit emulator
JP2005201329A (en) * 2004-01-14 2005-07-28 Nippon Leakless Corp Metal gasket for cylinder head

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4955127A (en) * 1987-08-10 1990-09-11 Fanuc Ltd. Automatic tool exchanging device for a machine tool
JPH04107745A (en) * 1990-08-29 1992-04-09 Nec Ic Microcomput Syst Ltd In-circuit emulator
JP2005201329A (en) * 2004-01-14 2005-07-28 Nippon Leakless Corp Metal gasket for cylinder head

Also Published As

Publication number Publication date
JP2575024B2 (en) 1997-01-22

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