JPS57109068A - Extended-address generator - Google Patents

Extended-address generator

Info

Publication number
JPS57109068A
JPS57109068A JP18650080A JP18650080A JPS57109068A JP S57109068 A JPS57109068 A JP S57109068A JP 18650080 A JP18650080 A JP 18650080A JP 18650080 A JP18650080 A JP 18650080A JP S57109068 A JPS57109068 A JP S57109068A
Authority
JP
Japan
Prior art keywords
address
data
cpu
extended
address data
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
JP18650080A
Other languages
Japanese (ja)
Inventor
Hideaki Goto
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.)
Sony Corp
Original Assignee
Sony 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 Sony Corp filed Critical Sony Corp
Priority to JP18650080A priority Critical patent/JPS57109068A/en
Publication of JPS57109068A publication Critical patent/JPS57109068A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F9/00—Arrangements for program control, e.g. control units
    • G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
    • G06F9/30—Arrangements for executing machine instructions, e.g. instruction decode
    • G06F9/34—Addressing or accessing the instruction operand or the result ; Formation of operand address; Addressing modes
    • G06F9/342—Extension of operand address space

Abstract

PURPOSE:To generate extended-address data by decreasing the amount of information in an address table, by adding CPU address data and another address data generated by the address table digitally within the specific range of the address data of a CPU. CONSTITUTION:Address data, consisting of n' bits is supplied from a CPU to the terminal 1 of an extended-address generator to obtain L-bit extended-address data at a terminal 4. This generator is provided with an adder 5, and l'-bit address table data supplied from an address table via terminals 2 and 3 and another address data from the CPU are added together digitally to output extended-address data from the terminal 4. The number m' of data couples in the address table used for extension is used for both instruction access and data access, and some or all of address data from the CPU are supplied to specific address detector 8 to switch gate circuits 6 and 7 for corresponding spaces.
JP18650080A 1980-12-26 1980-12-26 Extended-address generator Pending JPS57109068A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18650080A JPS57109068A (en) 1980-12-26 1980-12-26 Extended-address generator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18650080A JPS57109068A (en) 1980-12-26 1980-12-26 Extended-address generator

Publications (1)

Publication Number Publication Date
JPS57109068A true JPS57109068A (en) 1982-07-07

Family

ID=16189572

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18650080A Pending JPS57109068A (en) 1980-12-26 1980-12-26 Extended-address generator

Country Status (1)

Country Link
JP (1) JPS57109068A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5957356A (en) * 1982-09-27 1984-04-02 Ricoh Co Ltd Memory extending system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5957356A (en) * 1982-09-27 1984-04-02 Ricoh Co Ltd Memory extending system

Similar Documents

Publication Publication Date Title
JPS522356A (en) Electronic desk calculator
JPS5241517A (en) Electronic musical instrument
JPS5231717A (en) Integrated circuit for electronic musical instrument
JPS5349420A (en) Electronic musical instrument
JPS57109068A (en) Extended-address generator
JPS5475226A (en) Character pattern generator
JPS5374022A (en) Sound volume envelop setting system in electronic musical instrument
JPS5351936A (en) High speed addition circuit
JPS523353A (en) Integrated logic circuit
JPS5433019A (en) Gate circuit of electronic musical instruments
JPS5296527A (en) Presetter for electronic musical instruments
JPS547922A (en) Predominant change-over device for electronic instrument
JPS55166747A (en) Data processor
JPS545714A (en) Keyboard apparatus for electronic musical instruments
JPS524814A (en) Electronic musical instrument
JPS5674666A (en) Voltage level generator
JPS5441628A (en) Semiconductor memory unit
JPS5228362A (en) Digital multimeter
JPS5356012A (en) Electronic musical instrument
JPS51131237A (en) Electronic register
JPS51126655A (en) Device for preventing clane from overloading
JPS5238118A (en) Booster circuit
JPS5285387A (en) Terminal structure of enamel stranded-wire
JPS5241515A (en) Key depression speed detection circuit of electronic musical instrumen t
JPS5288325A (en) Electronic musical instrument