JPS55134463A - Multiprocessor - Google Patents

Multiprocessor

Info

Publication number
JPS55134463A
JPS55134463A JP4050079A JP4050079A JPS55134463A JP S55134463 A JPS55134463 A JP S55134463A JP 4050079 A JP4050079 A JP 4050079A JP 4050079 A JP4050079 A JP 4050079A JP S55134463 A JPS55134463 A JP S55134463A
Authority
JP
Japan
Prior art keywords
address
cpu
memory unit
main memory
case
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
JP4050079A
Other languages
Japanese (ja)
Inventor
Akira Hitomi
Hiroaki Yokomichi
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 JP4050079A priority Critical patent/JPS55134463A/en
Publication of JPS55134463A publication Critical patent/JPS55134463A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To make special instructions of software needless to simplify a mechanism, by dividing and allocating a main memory unit by a hardware switch which operates upper bits of the memory address of each CPU.
CONSTITUTION: For READ/WRITE to an certain address, the address is set to address register 21, and gate signal line 26 is turned on to output data to the address line. In this case, the address signal of upper one bit can be switched to 1 or 0 dependently upon 1 or 0 to which CPU selector switch 23 is selected. Thus, one CPU and others set select signal 23 to 1 and 0 respectively, so that the actual address of the main memory unit to be accessed by CPUs can be converted even in case of the same software instruction.
COPYRIGHT: (C)1980,JPO&Japio
JP4050079A 1979-04-04 1979-04-04 Multiprocessor Pending JPS55134463A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4050079A JPS55134463A (en) 1979-04-04 1979-04-04 Multiprocessor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4050079A JPS55134463A (en) 1979-04-04 1979-04-04 Multiprocessor

Publications (1)

Publication Number Publication Date
JPS55134463A true JPS55134463A (en) 1980-10-20

Family

ID=12582274

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4050079A Pending JPS55134463A (en) 1979-04-04 1979-04-04 Multiprocessor

Country Status (1)

Country Link
JP (1) JPS55134463A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6289161A (en) * 1985-10-15 1987-04-23 Sanyo Electric Co Ltd Access method for single memory through plural cpu
JPS6392970U (en) * 1986-12-04 1988-06-15

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6289161A (en) * 1985-10-15 1987-04-23 Sanyo Electric Co Ltd Access method for single memory through plural cpu
JPS6392970U (en) * 1986-12-04 1988-06-15

Similar Documents

Publication Publication Date Title
JPS5652454A (en) Input/output control method of variable word length memory
JPS5687282A (en) Data processor
JPS55134463A (en) Multiprocessor
JPS55134442A (en) Data transfer unit
JPS5532270A (en) Read control circuit for memory unit
JPS55105760A (en) Memory control unit
JPS5528115A (en) Control system for data processor using different memory areas in access time
JPS57193847A (en) Memory bank dividing circuit
KR860009421A (en) Memory circuit with logic function
JPS5487148A (en) Data processing system by multiplex processor
JPS5776604A (en) Numeric controller
JPS5657111A (en) Sequence controller
JPS54123838A (en) Memory address control unit for data processor
JPS54136244A (en) Input unit to computers and the like of information transmission unit
JPS5458316A (en) Control memory unit
JPS55115159A (en) Information processing unit
JPS54140438A (en) Information processor
JPS55112661A (en) Memory control unit
JPS5624648A (en) Information processing system
JPS55140949A (en) Information processor
JPS55117780A (en) Buffer memory unit
JPS5564693A (en) Buffer memory unit
JPS56101250A (en) Data processor
JPS5543680A (en) Address designation system
JPS5599652A (en) Microprogram control unit