JPS5676847A - Microprogram control unit - Google Patents
Microprogram control unitInfo
- Publication number
- JPS5676847A JPS5676847A JP15329779A JP15329779A JPS5676847A JP S5676847 A JPS5676847 A JP S5676847A JP 15329779 A JP15329779 A JP 15329779A JP 15329779 A JP15329779 A JP 15329779A JP S5676847 A JPS5676847 A JP S5676847A
- Authority
- JP
- Japan
- Prior art keywords
- microprogram
- delivered
- branching
- produced
- control circuit
- 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 decrease the number of steps of a microprogram and at the same time realize a high-speed branching, by giving a simultaneous test to the branching conditions through the 1-step microprogram and by the signal produced at the arithmetic control line and delivered from the control circuit.
CONSTITUTION: The optional signals produced at the branch signal line 14c1 and delivered from the hardware control circuit 13 are selected in an optional number by the signal produced at the branch selection line 14a1 and delivered from the microprogram control circuit 12. Then a simultaneous test is given to several branching conditions of optional operation types by the signal delivered from the circuit 12 and produced at the arithmetic control line 14bc1. In this case, a simultaneous test is possible for several branching conditions with the 1-step microprogram. Thus the number of steps can be reduced for the microprogram, at the same time realizing a high-speed branching.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15329779A JPS5676847A (en) | 1979-11-27 | 1979-11-27 | Microprogram control unit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15329779A JPS5676847A (en) | 1979-11-27 | 1979-11-27 | Microprogram control unit |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5676847A true JPS5676847A (en) | 1981-06-24 |
Family
ID=15559385
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP15329779A Pending JPS5676847A (en) | 1979-11-27 | 1979-11-27 | Microprogram control unit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5676847A (en) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4984549A (en) * | 1972-12-20 | 1974-08-14 |
-
1979
- 1979-11-27 JP JP15329779A patent/JPS5676847A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4984549A (en) * | 1972-12-20 | 1974-08-14 |
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