JPS6482129A - Generating system for microprogram bit pattern - Google Patents
Generating system for microprogram bit patternInfo
- Publication number
- JPS6482129A JPS6482129A JP24038787A JP24038787A JPS6482129A JP S6482129 A JPS6482129 A JP S6482129A JP 24038787 A JP24038787 A JP 24038787A JP 24038787 A JP24038787 A JP 24038787A JP S6482129 A JPS6482129 A JP S6482129A
- Authority
- JP
- Japan
- Prior art keywords
- microprogram
- bit pattern
- field
- next step
- register
- 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 shorten a time required for execution of a microprogram by separating a part of a microprogram field from other parts and decoding this separated part via a logic circuit having a specific algorithm for generation of a microprogram bit pattern of the next step. CONSTITUTION:A part of a microprogram field is separated as a microprogram bit pattern generating field (G field). Then a microprogram bit pattern including the G field where the production of a microprogram bit pattern of the next step is previously taken into consideration is read out of a memory part 1 and sent to a register 3. A decoder 4 decodes the partial output of the register 3 corresponding to the G field via a logic circuit constituted based on a fixed standard. This decoded output serves as a part or the whole of the microprogram bit pattern of the next step so that the microprogram of the next step is produced without reading a bit pattern out of the part 1. In such a way, the time required for execution of a microprogram is shortened.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP24038787A JPS6482129A (en) | 1987-09-24 | 1987-09-24 | Generating system for microprogram bit pattern |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP24038787A JPS6482129A (en) | 1987-09-24 | 1987-09-24 | Generating system for microprogram bit pattern |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6482129A true JPS6482129A (en) | 1989-03-28 |
Family
ID=17058725
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP24038787A Pending JPS6482129A (en) | 1987-09-24 | 1987-09-24 | Generating system for microprogram bit pattern |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6482129A (en) |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5843040A (en) * | 1981-09-07 | 1983-03-12 | Nec Corp | Processor of microprogram control information |
JPS6111850A (en) * | 1984-06-26 | 1986-01-20 | Sharp Corp | Microcomputer system |
JPS61249140A (en) * | 1985-04-26 | 1986-11-06 | Nec Corp | Microprogram controller |
JPS62105237A (en) * | 1985-10-31 | 1987-05-15 | Nec Corp | Microprogram controller |
JPS62108332A (en) * | 1985-11-07 | 1987-05-19 | Nec Corp | Microprogram control device |
-
1987
- 1987-09-24 JP JP24038787A patent/JPS6482129A/en active Pending
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5843040A (en) * | 1981-09-07 | 1983-03-12 | Nec Corp | Processor of microprogram control information |
JPS6111850A (en) * | 1984-06-26 | 1986-01-20 | Sharp Corp | Microcomputer system |
JPS61249140A (en) * | 1985-04-26 | 1986-11-06 | Nec Corp | Microprogram controller |
JPS62105237A (en) * | 1985-10-31 | 1987-05-15 | Nec Corp | Microprogram controller |
JPS62108332A (en) * | 1985-11-07 | 1987-05-19 | Nec Corp | Microprogram control device |
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