JPS57103197A - Memory package checking method - Google Patents

Memory package checking method

Info

Publication number
JPS57103197A
JPS57103197A JP55178360A JP17836080A JPS57103197A JP S57103197 A JPS57103197 A JP S57103197A JP 55178360 A JP55178360 A JP 55178360A JP 17836080 A JP17836080 A JP 17836080A JP S57103197 A JPS57103197 A JP S57103197A
Authority
JP
Japan
Prior art keywords
memory
data
work
result
check
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
JP55178360A
Other languages
Japanese (ja)
Inventor
Hiroo Yamamoto
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.)
Fujitsu Frontech Ltd
Original Assignee
Fujitsu Frontech 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 Fujitsu Frontech Ltd filed Critical Fujitsu Frontech Ltd
Priority to JP55178360A priority Critical patent/JPS57103197A/en
Publication of JPS57103197A publication Critical patent/JPS57103197A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To facilitate a check on the package of a memory stored with an additional program by discriminating data, read out of a fixed memory by specifying a specific address, while disregarding the result of a parity check, and by storing the discrimination result in a work memory.
CONSTITUTION: To check whether a fixed memory ME2 provided separately from a fixed memory ME1 containing a basic program and stored with an additional program is packaged or not, a CPU specifies the specific address of the ME2 after a power source is put to work, and data which corresponds to the address is read out. Then, the result of its parity check PC is disregarded by data set to an interruption mask port RMP and shoring that interruption is disregarded, and said readout data is discriminated by the CPU to store a work memory 4 with information on whether the memory ME2 is packaged or not. Thus, the package of the memory is checked easily without any need to modify the basic program and to change set pins.
COPYRIGHT: (C)1982,JPO&Japio
JP55178360A 1980-12-17 1980-12-17 Memory package checking method Pending JPS57103197A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55178360A JPS57103197A (en) 1980-12-17 1980-12-17 Memory package checking method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55178360A JPS57103197A (en) 1980-12-17 1980-12-17 Memory package checking method

Publications (1)

Publication Number Publication Date
JPS57103197A true JPS57103197A (en) 1982-06-26

Family

ID=16047120

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55178360A Pending JPS57103197A (en) 1980-12-17 1980-12-17 Memory package checking method

Country Status (1)

Country Link
JP (1) JPS57103197A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52149036A (en) * 1976-06-04 1977-12-10 Hitachi Ltd Detection method for memory capacity
JPS5552599A (en) * 1978-10-11 1980-04-17 Ricoh Co Ltd Read-only memory detection control method

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52149036A (en) * 1976-06-04 1977-12-10 Hitachi Ltd Detection method for memory capacity
JPS5552599A (en) * 1978-10-11 1980-04-17 Ricoh Co Ltd Read-only memory detection control method

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