JPS5694441A - Processing device of microprogram control - Google Patents
Processing device of microprogram controlInfo
- Publication number
- JPS5694441A JPS5694441A JP17337279A JP17337279A JPS5694441A JP S5694441 A JPS5694441 A JP S5694441A JP 17337279 A JP17337279 A JP 17337279A JP 17337279 A JP17337279 A JP 17337279A JP S5694441 A JPS5694441 A JP S5694441A
- Authority
- JP
- Japan
- Prior art keywords
- precedence
- circuit
- processing device
- risk
- input
- 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 reduce the risk of over run without temporary abandonment of the execution right of the front end, by changing the precedence of requests from the front end according to the situation.
CONSTITUTION: Output signal PHISWPHnS of front ends 3-1W3-n are input to OR circuit 7, and resoective FF 4-1W4-n and 5-1W5-n are reset or set by the output of circuit 7. Contents of a pair of high precedence request signals and low precedence request signals of FF 4-1W4-n and 5-1W5-n are changed freely by the micro instruction of the scanning of FF 4-1W4-n and 5-1W5-n input to circuit 7. Then, the precedence is selected in precedence determining and selecting circuit 6 without temporary abandonment of the execution right of front ends 3-1W3-n, so that the risk of over run is reduced.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17337279A JPS5694441A (en) | 1979-12-27 | 1979-12-27 | Processing device of microprogram control |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17337279A JPS5694441A (en) | 1979-12-27 | 1979-12-27 | Processing device of microprogram control |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5694441A true JPS5694441A (en) | 1981-07-30 |
Family
ID=15959165
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP17337279A Pending JPS5694441A (en) | 1979-12-27 | 1979-12-27 | Processing device of microprogram control |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5694441A (en) |
-
1979
- 1979-12-27 JP JP17337279A patent/JPS5694441A/en active Pending
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