JPS5781663A - Auxiliary storage device - Google Patents

Auxiliary storage device

Info

Publication number
JPS5781663A
JPS5781663A JP15699780A JP15699780A JPS5781663A JP S5781663 A JPS5781663 A JP S5781663A JP 15699780 A JP15699780 A JP 15699780A JP 15699780 A JP15699780 A JP 15699780A JP S5781663 A JPS5781663 A JP S5781663A
Authority
JP
Japan
Prior art keywords
address
block
outputted
sector
storage device
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
JP15699780A
Other languages
Japanese (ja)
Inventor
Akihiko Furuya
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 JP15699780A priority Critical patent/JPS5781663A/en
Publication of JPS5781663A publication Critical patent/JPS5781663A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F12/00—Accessing, addressing or allocating within memory systems or architectures
    • G06F12/02—Addressing or allocation; Relocation
    • G06F12/06—Addressing a physical block of locations, e.g. base addressing, module addressing, memory dedication
    • G06F12/0615—Address space extension
    • G06F12/0623—Address space extension for memory modules

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Indexing, Searching, Synchronizing, And The Amount Of Synchronization Travel Of Record Carriers (AREA)

Abstract

PURPOSE:To increase a data storage area without increasing the capacity of the whole device, by adopting such a storage system as provides one address part on one block consisting of plural data sectors. CONSTITUTION:Each block 0-3 of an auxiliary storage device consists of plural sectors (4 sectors), and address parts AD0-AD3 are provided on each block 0-3, respectively. In this state, upper bits of an address are assigned to the block and lower bits of the address are assigned to the sector. An address 2 containing a prescribed sector 22 is outputted from an access device of the auxiliary storage device. In accordance with this address, when an address AD1 being nearest to the AD2 of the block 2 has been detected, the lower bit of the address is outputted to a decoder 106, and a signal 109 for designating a prescribed sector is outputted. At the same time, a pseudo gate singal generating circuit 104 outputs its signal, and a gate singal for accessing the data sector 22 is outputted from an AND113.
JP15699780A 1980-11-10 1980-11-10 Auxiliary storage device Pending JPS5781663A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15699780A JPS5781663A (en) 1980-11-10 1980-11-10 Auxiliary storage device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15699780A JPS5781663A (en) 1980-11-10 1980-11-10 Auxiliary storage device

Publications (1)

Publication Number Publication Date
JPS5781663A true JPS5781663A (en) 1982-05-21

Family

ID=15639919

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15699780A Pending JPS5781663A (en) 1980-11-10 1980-11-10 Auxiliary storage device

Country Status (1)

Country Link
JP (1) JPS5781663A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5536151A (en) * 1978-09-05 1980-03-13 Mitsubishi Heavy Ind Ltd Semi-sinking type twin-fuselage ship equipped with pitching reducing plate

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5536151A (en) * 1978-09-05 1980-03-13 Mitsubishi Heavy Ind Ltd Semi-sinking type twin-fuselage ship equipped with pitching reducing plate

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