JPS6481056A - Data processor - Google Patents
Data processorInfo
- Publication number
- JPS6481056A JPS6481056A JP62237146A JP23714687A JPS6481056A JP S6481056 A JPS6481056 A JP S6481056A JP 62237146 A JP62237146 A JP 62237146A JP 23714687 A JP23714687 A JP 23714687A JP S6481056 A JPS6481056 A JP S6481056A
- Authority
- JP
- Japan
- Prior art keywords
- instruction
- data processing
- memory
- address
- supplied
- 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.)
- Granted
Links
Landscapes
- Memory System Of A Hierarchy Structure (AREA)
- Complex Calculations (AREA)
Abstract
PURPOSE:To improve the arithmetic executing speed by adding a cache memory into a data processor to store an instruction for decision of the data processing procedure. CONSTITUTION:When a digital signal processor DSP processes data based on a program written into an external instruction memory EM, a relevant address is designated by an address signal A1 produced by a control circuit CONT. The instruction word read out by said address designation is supplied to a DSP and then supplied to an instruction decoder DEC via multiplexers MPX1 and 2 to be executed there. At the same time, the instruction word is written into an instruction cache memory CM. Thus the second and subsequent data processing jobs are carried out by the instruction words stored in the memory CM. Then the data processing speed is increased.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62237146A JP2533893B2 (en) | 1987-09-24 | 1987-09-24 | Data processing device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62237146A JP2533893B2 (en) | 1987-09-24 | 1987-09-24 | Data processing device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6481056A true JPS6481056A (en) | 1989-03-27 |
JP2533893B2 JP2533893B2 (en) | 1996-09-11 |
Family
ID=17011088
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62237146A Expired - Fee Related JP2533893B2 (en) | 1987-09-24 | 1987-09-24 | Data processing device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2533893B2 (en) |
-
1987
- 1987-09-24 JP JP62237146A patent/JP2533893B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JP2533893B2 (en) | 1996-09-11 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
LAPS | Cancellation because of no payment of annual fees |