JPS556622A - Microprogram sequence control circuuit - Google Patents
Microprogram sequence control circuuitInfo
- Publication number
- JPS556622A JPS556622A JP7873478A JP7873478A JPS556622A JP S556622 A JPS556622 A JP S556622A JP 7873478 A JP7873478 A JP 7873478A JP 7873478 A JP7873478 A JP 7873478A JP S556622 A JPS556622 A JP S556622A
- Authority
- JP
- Japan
- Prior art keywords
- address
- input
- adder
- bits
- output
- 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 realize various addressing functions required for programming by a simple constitution, by allowing an address register to generate the next address by a relative address system or increment address system.
CONSTITUTION: Full adder 8 has the "n"-number input bits half as many as the "2n"-number address bits to be outputted and bit width 2n as wide as number 2n of output bits, and to one input of adder 8, the output of address register 3 supplied with the output of adder 8 is applied. To the other input of adder 8, data with the higher or lower bit (n) of input bits controlled by input cpntrol circuit 11 made "O" or all "O" data is applied. Consequently, the simple constitution can realize various addressing functions needed for programming, by generating the next address in register 3 by the relative address system or increment system.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7873478A JPS556622A (en) | 1978-06-30 | 1978-06-30 | Microprogram sequence control circuuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7873478A JPS556622A (en) | 1978-06-30 | 1978-06-30 | Microprogram sequence control circuuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS556622A true JPS556622A (en) | 1980-01-18 |
| JPS6115456B2 JPS6115456B2 (en) | 1986-04-24 |
Family
ID=13670105
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7873478A Granted JPS556622A (en) | 1978-06-30 | 1978-06-30 | Microprogram sequence control circuuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS556622A (en) |
-
1978
- 1978-06-30 JP JP7873478A patent/JPS556622A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6115456B2 (en) | 1986-04-24 |
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