JPS5688523A - Data processor - Google Patents
Data processorInfo
- Publication number
- JPS5688523A JPS5688523A JP16642579A JP16642579A JPS5688523A JP S5688523 A JPS5688523 A JP S5688523A JP 16642579 A JP16642579 A JP 16642579A JP 16642579 A JP16642579 A JP 16642579A JP S5688523 A JPS5688523 A JP S5688523A
- Authority
- JP
- Japan
- Prior art keywords
- processor
- μpc22
- processing
- speed
- instruction
- 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
Landscapes
- Microcomputers (AREA)
Abstract
PURPOSE: To shorten the execution time of instructions when a high-speed processor is used, by quickening data transfer between microprocessor μPC and the high-speed processor.
CONSTITUTION: When fetching a high-speed processing instruction from main memory 26, μPC22 starts a corresponding microprogram and permits high-speed processor 27 to perform high-speed processing according to micro μ instructions read out of control storage device 21. Further, μPC22 monitors the processing execution end of processor 27. Processor 27 interrupts μPC22 right before the processing execution end to let it know the execution end and also outputs the processing result to output data line 30 immediately. In response to the processing execution end of processor 27, μPC22 assigns μ address, assigning a μ instruction, to device 21. Thus, the μ instruction is read out of device 21 and when processor 27 is assigned by this instruction, multiplexer 31 inputs the processing result of processor 27 to μPC22 without using memory bus 24, so that the execution time of instructions is shortened.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16642579A JPS5688523A (en) | 1979-12-21 | 1979-12-21 | Data processor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16642579A JPS5688523A (en) | 1979-12-21 | 1979-12-21 | Data processor |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5688523A true JPS5688523A (en) | 1981-07-18 |
Family
ID=15831176
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP16642579A Pending JPS5688523A (en) | 1979-12-21 | 1979-12-21 | Data processor |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5688523A (en) |
-
1979
- 1979-12-21 JP JP16642579A patent/JPS5688523A/en active Pending
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