JPS5794844A - Data processor - Google Patents
Data processorInfo
- Publication number
- JPS5794844A JPS5794844A JP16958980A JP16958980A JPS5794844A JP S5794844 A JPS5794844 A JP S5794844A JP 16958980 A JP16958980 A JP 16958980A JP 16958980 A JP16958980 A JP 16958980A JP S5794844 A JPS5794844 A JP S5794844A
- Authority
- JP
- Japan
- Prior art keywords
- memory
- program
- address
- contents
- unit
- 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 simplify the correcting job of a data processor, by switching an unrewritable memory to a rewritable memory and then repeating the correction through trial and error.
CONSTITUTION: A program executing unit 21 interprets and executes an initializing program stored in a memory 1. The initializing program gives a set indication to an FF5 and shifts the contents of an address (j) to a register in the unit 21. After this, the program gives a reset indication to the FF5 and shifts the contents stored in the register to the address (j). The same action is repeated successively from addresses j+1, j+2 through an address (k). Then the contents of a memory 2 are shifted to a memory 3. The initializing program gives a reset indication to the FF5 and then completes its operation. After this, an access is always given to the memory 3 for addresses (j)W(k). Accordingly, the unit 21 uses the memory 3 in place of the memory 2 and reads the program out of the memory 3 to execute it.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16958980A JPS5794844A (en) | 1980-12-03 | 1980-12-03 | Data processor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16958980A JPS5794844A (en) | 1980-12-03 | 1980-12-03 | Data processor |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5794844A true JPS5794844A (en) | 1982-06-12 |
Family
ID=15889280
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP16958980A Pending JPS5794844A (en) | 1980-12-03 | 1980-12-03 | Data processor |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5794844A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6059437A (en) * | 1983-09-10 | 1985-04-05 | Fujitsu Denso Ltd | Table correcting method |
JPS61166630A (en) * | 1985-01-19 | 1986-07-28 | Panafacom Ltd | Microprogram control system |
JPS61236098A (en) * | 1985-04-10 | 1986-10-21 | Nec Corp | Rom program controller |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5148951A (en) * | 1974-10-25 | 1976-04-27 | Hitachi Ltd | |
JPS545343A (en) * | 1977-06-15 | 1979-01-16 | Toshiba Corp | Micro program processing system |
JPS55118150A (en) * | 1979-03-05 | 1980-09-10 | Nec Corp | Computer circuit |
-
1980
- 1980-12-03 JP JP16958980A patent/JPS5794844A/en active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5148951A (en) * | 1974-10-25 | 1976-04-27 | Hitachi Ltd | |
JPS545343A (en) * | 1977-06-15 | 1979-01-16 | Toshiba Corp | Micro program processing system |
JPS55118150A (en) * | 1979-03-05 | 1980-09-10 | Nec Corp | Computer circuit |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6059437A (en) * | 1983-09-10 | 1985-04-05 | Fujitsu Denso Ltd | Table correcting method |
JPS61166630A (en) * | 1985-01-19 | 1986-07-28 | Panafacom Ltd | Microprogram control system |
JPS61236098A (en) * | 1985-04-10 | 1986-10-21 | Nec Corp | Rom program controller |
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