JPS55123731A - Input/output control system - Google Patents
Input/output control systemInfo
- Publication number
- JPS55123731A JPS55123731A JP2942379A JP2942379A JPS55123731A JP S55123731 A JPS55123731 A JP S55123731A JP 2942379 A JP2942379 A JP 2942379A JP 2942379 A JP2942379 A JP 2942379A JP S55123731 A JPS55123731 A JP S55123731A
- Authority
- JP
- Japan
- Prior art keywords
- instruction
- cpu2
- printer
- memory
- 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 the processing efficiency of a unit by storing parameter data from a memory to a read register to perform the print operation with one instruction.
CONSTITUTION: In the I/O control system where the print operation can be performed by one instruction with the print instruction of a parameter form, printer 3 has register 18 where a print digit position in the print line is defined by indication from CPU2. The instruction consisting of the OP field and the parameter address is read from memory 1 by CPU2 and is transferred to printer 3, and printer 3 reads out parameter data consisting of the print digit position, etc., from memory 1 according to the parameter address and stores it into register 18. As a result, the print operation can be performed by one istruction, and CPU2 can execute the processing of another program during the print operation, so that the processing efficiency can be improved.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2942379A JPS55123731A (en) | 1979-03-15 | 1979-03-15 | Input/output control system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2942379A JPS55123731A (en) | 1979-03-15 | 1979-03-15 | Input/output control system |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS55123731A true JPS55123731A (en) | 1980-09-24 |
Family
ID=12275712
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2942379A Pending JPS55123731A (en) | 1979-03-15 | 1979-03-15 | Input/output control system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55123731A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62276623A (en) * | 1986-02-28 | 1987-12-01 | Nec Corp | Data output control system |
-
1979
- 1979-03-15 JP JP2942379A patent/JPS55123731A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62276623A (en) * | 1986-02-28 | 1987-12-01 | Nec Corp | Data output control system |
JPH0621977B2 (en) * | 1986-02-28 | 1994-03-23 | 日本電気株式会社 | Data output control system |
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