JPS5549748A - Microprogram control unit - Google Patents
Microprogram control unitInfo
- Publication number
- JPS5549748A JPS5549748A JP12224278A JP12224278A JPS5549748A JP S5549748 A JPS5549748 A JP S5549748A JP 12224278 A JP12224278 A JP 12224278A JP 12224278 A JP12224278 A JP 12224278A JP S5549748 A JPS5549748 A JP S5549748A
- Authority
- JP
- Japan
- Prior art keywords
- instructions
- micro instruction
- storage means
- horizontal
- instruction storage
- 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 make it possible to perform an efficient execution which can use micro instruction horizontal and vertical types and is dependent upon address generation methods suitable for respective types.
CONSTITUTION: First micro instruction storage means 101 stores horizontal instructions, and second micro instruction storage means 201 stores horizontal or vertical instructions. Instructions read from micro instruction storage means 101 are stored in pipeline register 103, and the next address based on registers 104 and 107 is outputted to address line 110. When instructions read from micro instruction storage means 201 are horizontal-type, they are stored in pipeline register 107 to generate the next address on a basis of the register output. In case of vertical micro instructions, they are modified by branch condition modification part 209 to generate the next address for which the microprogram counter is used as a main unit.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12224278A JPS5549748A (en) | 1978-10-03 | 1978-10-03 | Microprogram control unit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12224278A JPS5549748A (en) | 1978-10-03 | 1978-10-03 | Microprogram control unit |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5549748A true JPS5549748A (en) | 1980-04-10 |
Family
ID=14831100
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12224278A Pending JPS5549748A (en) | 1978-10-03 | 1978-10-03 | Microprogram control unit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5549748A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01166131A (en) * | 1987-11-05 | 1989-06-30 | Raytheon Co | Next micro-command generator of micro-program controller |
-
1978
- 1978-10-03 JP JP12224278A patent/JPS5549748A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01166131A (en) * | 1987-11-05 | 1989-06-30 | Raytheon Co | Next micro-command generator of micro-program controller |
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