JPS5474337A - Microprogram controller - Google Patents
Microprogram controllerInfo
- Publication number
- JPS5474337A JPS5474337A JP14177877A JP14177877A JPS5474337A JP S5474337 A JPS5474337 A JP S5474337A JP 14177877 A JP14177877 A JP 14177877A JP 14177877 A JP14177877 A JP 14177877A JP S5474337 A JPS5474337 A JP S5474337A
- Authority
- JP
- Japan
- Prior art keywords
- address
- microinstruction
- stored
- branch
- execution
- 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 improve efficiency by storing a branch address at the same time as the execution of a branch operation and by using this stored address as the address of the next executive microprogram.
CONSTITUTION: A microinstruction, read out from microinstruction memory unit 10, is stored in control register 20 and controls arithmetic unit 90 for the execution of arithmetic. If this instruction assigns the write to push-down memory 40, contents of address register 80 or a branch address in the microinstruction is stored in push-down memory 40 and buffer register 50. According to the test results of test circuit 100, selector circuit 60 makes selections and uses it as the address of the next microinstruction.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14177877A JPS5474337A (en) | 1977-11-26 | 1977-11-26 | Microprogram controller |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14177877A JPS5474337A (en) | 1977-11-26 | 1977-11-26 | Microprogram controller |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5474337A true JPS5474337A (en) | 1979-06-14 |
Family
ID=15299941
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14177877A Pending JPS5474337A (en) | 1977-11-26 | 1977-11-26 | Microprogram controller |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5474337A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5694443A (en) * | 1979-12-27 | 1981-07-30 | Nec Corp | Microprogram control device |
JPS56140444A (en) * | 1980-04-03 | 1981-11-02 | Nec Corp | Microprogram control system |
JPS57157355A (en) * | 1981-03-05 | 1982-09-28 | Burroughs Corp | Microprogrammed data processing system |
-
1977
- 1977-11-26 JP JP14177877A patent/JPS5474337A/en active Pending
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5694443A (en) * | 1979-12-27 | 1981-07-30 | Nec Corp | Microprogram control device |
JPS56140444A (en) * | 1980-04-03 | 1981-11-02 | Nec Corp | Microprogram control system |
JPS6250854B2 (en) * | 1980-04-03 | 1987-10-27 | Nippon Electric Co | |
JPS57157355A (en) * | 1981-03-05 | 1982-09-28 | Burroughs Corp | Microprogrammed data processing system |
JPS6346857B2 (en) * | 1981-03-05 | 1988-09-19 | Yunishisu Corp |
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