JPS5513476A - Microprogram control unit - Google Patents
Microprogram control unitInfo
- Publication number
- JPS5513476A JPS5513476A JP8626478A JP8626478A JPS5513476A JP S5513476 A JPS5513476 A JP S5513476A JP 8626478 A JP8626478 A JP 8626478A JP 8626478 A JP8626478 A JP 8626478A JP S5513476 A JPS5513476 A JP S5513476A
- Authority
- JP
- Japan
- Prior art keywords
- address
- circuit
- microprogram
- information
- given
- 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 realize increase of the process speed and decrease of the capacity of the microorder memory by providing the decoder circuit to the operation indication register to secure branching to the head address of the process of the microprogram.
CONSTITUTION: When the operation indication information is given from the higher-rank unit, the status information is drawn in from the lower-rank unit under the control of the microprogram. This information is stored in operation indication register 1 and then decoded through decoder means 2 to be given to address selection circuit 4 in the form of the address information. Circuit 4 usually selects the output given from circuit 3 but selects the output from means 2 when executing the branch order to set the selected output to address register 5 in the form of the branch destination address. Then the microorder is read out from the storage position of microprogram memory 6 designated by the branch destination address, and the order is carried out at execution part 7.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8626478A JPS5513476A (en) | 1978-07-14 | 1978-07-14 | Microprogram control unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8626478A JPS5513476A (en) | 1978-07-14 | 1978-07-14 | Microprogram control unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5513476A true JPS5513476A (en) | 1980-01-30 |
Family
ID=13881952
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8626478A Pending JPS5513476A (en) | 1978-07-14 | 1978-07-14 | Microprogram control unit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5513476A (en) |
-
1978
- 1978-07-14 JP JP8626478A patent/JPS5513476A/en active Pending
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