JPS5642858A - Microprogram control system - Google Patents
Microprogram control systemInfo
- Publication number
- JPS5642858A JPS5642858A JP11898579A JP11898579A JPS5642858A JP S5642858 A JPS5642858 A JP S5642858A JP 11898579 A JP11898579 A JP 11898579A JP 11898579 A JP11898579 A JP 11898579A JP S5642858 A JPS5642858 A JP S5642858A
- Authority
- JP
- Japan
- Prior art keywords
- microinstruction
- execution
- memory
- branch
- suppression
- 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 time of execution for the microinstruction, by giving a suppression to the execution with production of the execution suppression signal during the conditional branch microinstruction.
CONSTITUTION: The microinstruction read out of the control memory 2' is applied to execution part 1' via the microinstruction register 3' for execution. The microprogram address control part 4' produces the address of the microinstruction to be executed next and then gives it to the memory 2'. Then the microinstruction read out of the memory 2' is supplied to the register 3'. In this case, the part 4' produces the branch indication signal 43 in case the microinstruction to be executed next is the conditional branch order. In response to this branch indication signal, the execution suppression signal is generated to be applied to the control terminal 12 of the part 1'. In such way, the operation to be attained by plural microinstructions can be executed by the single microinstruction, thus reducing the time of execution.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11898579A JPS5642858A (en) | 1979-09-17 | 1979-09-17 | Microprogram control system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11898579A JPS5642858A (en) | 1979-09-17 | 1979-09-17 | Microprogram control system |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5642858A true JPS5642858A (en) | 1981-04-21 |
JPS6250855B2 JPS6250855B2 (en) | 1987-10-27 |
Family
ID=14750147
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11898579A Granted JPS5642858A (en) | 1979-09-17 | 1979-09-17 | Microprogram control system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5642858A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS56147244A (en) * | 1980-04-15 | 1981-11-16 | Nec Corp | Microprogram-controlled information processing device |
JPS6490450A (en) * | 1987-09-30 | 1989-04-06 | Konishiroku Photo Ind | Method for development processing of non-silver salt photosensitive material which is improved in uniformity of development |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5024044A (en) * | 1973-07-04 | 1975-03-14 | ||
JPS5081040A (en) * | 1973-11-15 | 1975-07-01 |
-
1979
- 1979-09-17 JP JP11898579A patent/JPS5642858A/en active Granted
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5024044A (en) * | 1973-07-04 | 1975-03-14 | ||
JPS5081040A (en) * | 1973-11-15 | 1975-07-01 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS56147244A (en) * | 1980-04-15 | 1981-11-16 | Nec Corp | Microprogram-controlled information processing device |
JPS6490450A (en) * | 1987-09-30 | 1989-04-06 | Konishiroku Photo Ind | Method for development processing of non-silver salt photosensitive material which is improved in uniformity of development |
Also Published As
Publication number | Publication date |
---|---|
JPS6250855B2 (en) | 1987-10-27 |
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