JPS55119741A - Operation circuit - Google Patents
Operation circuitInfo
- Publication number
- JPS55119741A JPS55119741A JP2612079A JP2612079A JPS55119741A JP S55119741 A JPS55119741 A JP S55119741A JP 2612079 A JP2612079 A JP 2612079A JP 2612079 A JP2612079 A JP 2612079A JP S55119741 A JPS55119741 A JP S55119741A
- Authority
- JP
- Japan
- Prior art keywords
- input
- processor
- registers
- output
- external
- 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
Abstract
PURPOSE: To reduce the execution time of instruction word and to enable effective operation, by selectively contacting either one of input or output of the microprocessor to the input of the external register input.
CONSTITUTION: The microprocessor 11 has the internal register group 31 in the internal part, the external registers 12 and 14 are provided external the processor 11, and the input is connected to the input of the processor. Further, the selection unit 21 is provided between the output of the processor 11 and the input of the registers 12 and 14. Either one of the output or input of the processor 11 is selectively connected to the input of the registers 12 and 14. Thus, the idle time of the processor 11 is made short and the number of steps of microprogram, the execution time of instruction word is reduced to enable effective operation.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2612079A JPS55119741A (en) | 1979-03-08 | 1979-03-08 | Operation circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2612079A JPS55119741A (en) | 1979-03-08 | 1979-03-08 | Operation circuit |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS55119741A true JPS55119741A (en) | 1980-09-13 |
JPS616407B2 JPS616407B2 (en) | 1986-02-26 |
Family
ID=12184705
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2612079A Granted JPS55119741A (en) | 1979-03-08 | 1979-03-08 | Operation circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55119741A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03157722A (en) * | 1989-11-15 | 1991-07-05 | Matsushita Electric Ind Co Ltd | Floating point arithmetic unit |
-
1979
- 1979-03-08 JP JP2612079A patent/JPS55119741A/en active Granted
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03157722A (en) * | 1989-11-15 | 1991-07-05 | Matsushita Electric Ind Co Ltd | Floating point arithmetic unit |
Also Published As
Publication number | Publication date |
---|---|
JPS616407B2 (en) | 1986-02-26 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS5621240A (en) | Information processor | |
JPS5435654A (en) | Information processing unit | |
JPS55119741A (en) | Operation circuit | |
JPS57756A (en) | Data processor | |
JPS5423343A (en) | Microprogram controller | |
JPS5720864A (en) | Vector processor | |
JPS5455336A (en) | Data processor controlled by microprogram | |
JPS53142844A (en) | Information processor | |
JPS53142841A (en) | Data processor | |
JPS5447545A (en) | Multiple processor system | |
JPS5493342A (en) | Vector register | |
JPS5748141A (en) | Address conversion system | |
JPS54107629A (en) | Key input unit | |
JPS5356933A (en) | Memory unit provided with self-diagnostic function | |
JPS5644942A (en) | Information processing unit | |
JPS5667453A (en) | Information processor with data generation part | |
JPS5638641A (en) | Microprogram control system | |
JPS5437645A (en) | Computer system | |
JPS55119749A (en) | Retry control system | |
JPS55124844A (en) | Operation control system | |
JPS51150938A (en) | Interrupt handling unit | |
JPS5421229A (en) | Data fetch system | |
JPS5330243A (en) | Arithmetic processor | |
JPS5469038A (en) | Data processor | |
JPS5394845A (en) | Address control system for control memory |