JPS55134463A - Multiprocessor - Google Patents
MultiprocessorInfo
- 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
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
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)
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 |
-
1979
- 1979-04-04 JP JP4050079A patent/JPS55134463A/en active Pending
Cited By (2)
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 |
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