JPS52136535A - Microprogram control system - Google Patents
Microprogram control systemInfo
- Publication number
- JPS52136535A JPS52136535A JP5464876A JP5464876A JPS52136535A JP S52136535 A JPS52136535 A JP S52136535A JP 5464876 A JP5464876 A JP 5464876A JP 5464876 A JP5464876 A JP 5464876A JP S52136535 A JPS52136535 A JP S52136535A
- Authority
- JP
- Japan
- Prior art keywords
- rom
- control system
- microprogram control
- extension
- instruction
- 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
Landscapes
- Executing Machine-Instructions (AREA)
Abstract
PURPOSE: To obtain a control circuit, with which the system never deteriorate even in case the instruction of extension ROM is read with no extension of ROM as well as no replacement of ROM of ordinary equipment is required even if ROM is increased.
COPYRIGHT: (C)1977,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5464876A JPS6020769B2 (en) | 1976-05-11 | 1976-05-11 | Microprogram control method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5464876A JPS6020769B2 (en) | 1976-05-11 | 1976-05-11 | Microprogram control method |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS52136535A true JPS52136535A (en) | 1977-11-15 |
JPS6020769B2 JPS6020769B2 (en) | 1985-05-23 |
Family
ID=12976590
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP5464876A Expired JPS6020769B2 (en) | 1976-05-11 | 1976-05-11 | Microprogram control method |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6020769B2 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS55103653A (en) * | 1979-01-31 | 1980-08-08 | Nec Corp | Data processing unit |
JPS56109151U (en) * | 1980-01-21 | 1981-08-24 | ||
JPS581245A (en) * | 1981-06-26 | 1983-01-06 | Fujitsu Ltd | Branch address producing method |
-
1976
- 1976-05-11 JP JP5464876A patent/JPS6020769B2/en not_active Expired
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS55103653A (en) * | 1979-01-31 | 1980-08-08 | Nec Corp | Data processing unit |
JPS56109151U (en) * | 1980-01-21 | 1981-08-24 | ||
JPS581245A (en) * | 1981-06-26 | 1983-01-06 | Fujitsu Ltd | Branch address producing method |
JPH0323938B2 (en) * | 1981-06-26 | 1991-04-02 | Fujitsu Ltd |
Also Published As
Publication number | Publication date |
---|---|
JPS6020769B2 (en) | 1985-05-23 |
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