JPS5574625A - Termination interruption system by flag data - Google Patents
Termination interruption system by flag dataInfo
- Publication number
- JPS5574625A JPS5574625A JP14828478A JP14828478A JPS5574625A JP S5574625 A JPS5574625 A JP S5574625A JP 14828478 A JP14828478 A JP 14828478A JP 14828478 A JP14828478 A JP 14828478A JP S5574625 A JPS5574625 A JP S5574625A
- Authority
- JP
- Japan
- Prior art keywords
- input
- termination interruption
- termination
- flag
- output
- 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 check the state of termination interruption for the input and output unit by the software arbitrarily, by replacing the termination interruption system into the flag data system.
CONSTITUTION: The operand OP is instructed with the software S/W, the B input and output instruction from the step 1 is analyzed at the step 2, and the input and output unit I/O is started by driving the hardware at the step 3. I/O is started at the step 4 to transfer the data to H/W and the step 5 performs transfer processing of data. When this processing is finished, I/O turns on the termination interruption flag at the step 6. In this case, H/W processes the termination interruption flag at the step 7 and does nothing on S/W. On the other hand, S/W performs various processings after the output of the said input and output instruction, references the termination interruption flag at the step 8 in the stage of input and output instruction to I/O again and performs the steps 9 and 10.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14828478A JPS5574625A (en) | 1978-11-30 | 1978-11-30 | Termination interruption system by flag data |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14828478A JPS5574625A (en) | 1978-11-30 | 1978-11-30 | Termination interruption system by flag data |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5574625A true JPS5574625A (en) | 1980-06-05 |
Family
ID=15449316
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14828478A Pending JPS5574625A (en) | 1978-11-30 | 1978-11-30 | Termination interruption system by flag data |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5574625A (en) |
-
1978
- 1978-11-30 JP JP14828478A patent/JPS5574625A/en active Pending
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