JPS54133858A - Address detector of computer - Google Patents

Address detector of computer

Info

Publication number
JPS54133858A
JPS54133858A JP4120778A JP4120778A JPS54133858A JP S54133858 A JPS54133858 A JP S54133858A JP 4120778 A JP4120778 A JP 4120778A JP 4120778 A JP4120778 A JP 4120778A JP S54133858 A JPS54133858 A JP S54133858A
Authority
JP
Japan
Prior art keywords
address
detection point
ram12
ram
computer
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
JP4120778A
Other languages
Japanese (ja)
Inventor
Ikuro Masuda
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 JP4120778A priority Critical patent/JPS54133858A/en
Publication of JPS54133858A publication Critical patent/JPS54133858A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE:To enable a simple circuit to detect an address by setting a detection point by writing ''1'' into a RAM by a selective signal and then by identifying an output read out from the RAM, when ''1'', as the detection point for the execution of a program. CONSTITUTION:The microprocessor writes ''1'' into register 11 to RAM12 corresponding to an indicated address and selector circuit 14 selects the output of register 11 and applies it as the address of RAM 12. Then, writing ''1'' into RAM12 by a selective signal sets the detection point. To execute the program, the computer reads out the contents of RAM12 according to the access address and when the output is ''1'', it is identified as the detection point. Consequently, the address detection of a computer needed for the on-line debugging unit of a microcomputer can be realized by a simple circuit.
JP4120778A 1978-04-10 1978-04-10 Address detector of computer Pending JPS54133858A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4120778A JPS54133858A (en) 1978-04-10 1978-04-10 Address detector of computer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4120778A JPS54133858A (en) 1978-04-10 1978-04-10 Address detector of computer

Publications (1)

Publication Number Publication Date
JPS54133858A true JPS54133858A (en) 1979-10-17

Family

ID=12601955

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4120778A Pending JPS54133858A (en) 1978-04-10 1978-04-10 Address detector of computer

Country Status (1)

Country Link
JP (1) JPS54133858A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5933548A (en) * 1982-08-20 1984-02-23 Toshiba Corp Readout circuit of read only memory for set
CN112666164A (en) * 2020-11-23 2021-04-16 上海新时达机器人有限公司 Robot vision detection method for multi-product mixed-line production control cabinet

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5933548A (en) * 1982-08-20 1984-02-23 Toshiba Corp Readout circuit of read only memory for set
CN112666164A (en) * 2020-11-23 2021-04-16 上海新时达机器人有限公司 Robot vision detection method for multi-product mixed-line production control cabinet

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