JPS5533246A - Selective control system for register - Google Patents
Selective control system for registerInfo
- Publication number
- JPS5533246A JPS5533246A JP10607578A JP10607578A JPS5533246A JP S5533246 A JPS5533246 A JP S5533246A JP 10607578 A JP10607578 A JP 10607578A JP 10607578 A JP10607578 A JP 10607578A JP S5533246 A JPS5533246 A JP S5533246A
- Authority
- JP
- Japan
- Prior art keywords
- register
- data
- address
- control system
- selective control
- 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
- Executing Machine-Instructions (AREA)
Abstract
PURPOSE: To reduce the data length of an address register by using the head of a data part for its address when selecting several registers with shorter data length than that of an input data register.
CONSTITUTION: To select several registers Ri0 to Ri2, and Rj0 to Rj2 with shorter data length than that of input data register 2, the head of data of the data register is used as part of an address and supplied to decoders 4 and 5, so that when those registers Ri0 to Ri2, and Rj0 to Rj2 are selected, the data length of the address register can be shortened. Those registers are grouped and the address register can select a specific register by selecting a corresponding group.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP53106075A JPS6057604B2 (en) | 1978-08-30 | 1978-08-30 | Register selection control method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP53106075A JPS6057604B2 (en) | 1978-08-30 | 1978-08-30 | Register selection control method |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5533246A true JPS5533246A (en) | 1980-03-08 |
JPS6057604B2 JPS6057604B2 (en) | 1985-12-16 |
Family
ID=14424467
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP53106075A Expired JPS6057604B2 (en) | 1978-08-30 | 1978-08-30 | Register selection control method |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6057604B2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6266333A (en) * | 1985-09-19 | 1987-03-25 | Fujitsu Ltd | Indirect address register control system |
-
1978
- 1978-08-30 JP JP53106075A patent/JPS6057604B2/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6266333A (en) * | 1985-09-19 | 1987-03-25 | Fujitsu Ltd | Indirect address register control system |
Also Published As
Publication number | Publication date |
---|---|
JPS6057604B2 (en) | 1985-12-16 |
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