JPS59117629A - Extension system of terminal interrupt signal - Google Patents

Abstract

PURPOSE:To perform an efficient interrupting processing at an optional timing, by using character keys to increase apparently an optional number of interruption keys. CONSTITUTION:When an interruption signal extension part 5 is started by a mode control part 9, the extension part 5 converts the character code of a character key 2 inputted from a terminal 1 to a corresponding interruption code by an interruption signal conversion table 6 and sends this interruption code to a monitoring part 7. The monitoring part 7 refers to an interruption code table 8 to read out the address of an interrupting processing routine corresponding to the interruption code sent from the interruption signal extension part 5 and sends this address to an interrupting processing part 11, and this routine is called and executed. A mode control part 9 detects a current processing mode for the purpose of discrimination whether the character code transferred by the input operation of the character key 2 of the terminal 1 is a screen input data or an interruption signal, and the interruption signal extension part 5 is controlled.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to an interrupt input method in a data processing system, and in particular to a method for arbitrarily increasing the number of interrupt signals that can be input from a terminal with a single key operation up to the number allowed by the system. This invention relates to an interrupt signal expansion method to enable expansion.

[Technology background]

In traditional data processing systems, the number of interrupt signals available from the terminal is based on interrupt keys such as control keys and break keys.

It is normal that the number is limited to only one or two.

Therefore, when you want to transfer control to a specific subroutine to handle interrupts while a program is running, if the number of interrupt keys is small like the conventional terminals mentioned above, the number of interrupt keys allowed is extremely small. Become something.

In this way, when the number of interrupts required for one interrupt processing exceeds the number of interrupt keys, the conventional method is to input a combination of the control key and any character key, and use the control key to call the interrupt processing routine. After that, the subsequently inputted character key is identified, and an interrupt processing routine associated with that character is determined in advance and processing is performed. But with this method.

It is troublesome to have to input the interrupt key and at least one character key in succession.

In the case of a method in which a screen is displayed first and a specific type of interrupt processing is then selected.

Since the program is also in a waiting state for input, it is not possible to handle instantaneous interrupts, which has the disadvantage of impairing smooth responsive performance in interactive processing.

[Object and structure of the invention]

An object of the present invention is to provide means for apparently increasing the number of interrupt keys from a terminal and enabling efficient interrupt processing at any timing.

According to the principle of the present invention, as a configuration for this purpose, in a data processing system configured by a terminal and a host,
Interrupt code table means for calling a corresponding interrupt handling routine based on the two interrupt codes in the host, and an interrupt signal converter for converting a single character code signal manually inputted from the terminal into a specific interrupt code. A table means and a means for identifying a processing mode in which no data is input are provided, and in the processing mode in which no data is input, a character code manually entered from the terminal is determined to be an interrupt signal, and the interrupt signal conversion table means is used to determine the character code entered manually from the terminal. The feature is that it converts into a corresponding interrupt code and executes two interrupt processing.

[Embodiments of the invention]

The present invention will be explained below based on two examples.

FIG. 1 is a block diagram of a system according to an embodiment of the present invention. In the figure, 1 is a terminal, 2 is a character key, 3 is a host, 4 is an interaction control section, 5 is an interrupt signal extension section, and 6 is an interrupt signal conversion table.

7 is a monitor section, 8 is an interrupt code table, 9 is a mode control section, and 10 is an application processing section.

Reference numeral 11 indicates an interrupt processing section.

Normally, the user uses the application processing unit 1 from the terminal 1 under the service of the interaction control unit 4 of the host 3.
0 is executed in an interactive manner.

Taking a simulation program as an example of an application cage installation program, a simulation program is provided with many parameters for specifying and changing a model, an output display method, and the like. For example, the data sampling period may be changed, the graph display format may be specified, and such parameters must be specified and changed as needed while proceeding with the process in an interactive manner.

Conventionally, when specifying or changing such parameters, the user instructs the interaction control unit 4 to call the monitor unit 7 (or the operating system), outputs a menu screen with a parameter list, and selects the parameter list from the screen. There were many methods to choose from.

However, for parameters that are frequently operated, if you call up the many screen every time you need to specify or change a parameter, processing efficiency will drop significantly. It is desirable to be able to specify and change parameters.

In the embodiment shown in FIG. 1, there are nine interrupt processing units 11.

It has a plurality of interrupt processing routines for manipulating each of these parameters, and these routines are selectively called via the interrupt code table 8.

A specific character key 2 of the terminal operator is assigned to each parameter to be directly specified. In order to make this character key function as an interrupt key for a specific parameter, the present invention provides an interrupt signal extension section 5 and a mode control section 9.

When activated by the mode control unit 9, the interrupt signal expansion unit 5 converts the 20 character code of the character key input from the terminal 1 into a corresponding interrupt code using the 9 interrupt signal conversion table 6, and transmits this to the monitor unit 7. send. The monitor unit 7 monitors 9 interrupt codes sent from the interrupt signal extension unit 5.

Referring to the interrupt code table 8, the address 7 of the corresponding interrupt processing routine is read out and sent to the interrupt processing section 9 11, which calls and executes the routine.

The mode control unit 9 detects the current processing mode and extends the 9 interrupt signal in order to distinguish whether the character code transferred by the terminal 10 character key 20 input operation is single screen input data or an interrupt signal. 5. In this embodiment, the character code input when the data input screen is displayed on the terminal 1 is identified as input data and sent to the app cage seal processing section 10. However, the character code input while the data output screen of the processing result is being displayed is treated as a 9 interrupt signal and causes the 9 interrupt signal extension section 5 to perform the above-described processing.

FIG. 2 shows an example of the two-interrupt signal conversion table 6 and the interrupt code table 801.

α1. α2. ... represents a parameter. The size of these tables can be set arbitrarily within the range of the number of 9 interrupt codes and the number of usable character keys.

〔Effect of the invention〕

According to the present invention, it is possible to seemingly increase the number of interrupt keys by using 9-character keys without adding a special interrupt key to the terminal, and it is possible to perform interrupt processing interactively without reducing execution speed. can be set.

[Brief explanation of drawings]

FIG. 1 is a block diagram of a system according to an embodiment of the present invention, and FIG. 2 is an explanatory diagram of an interrupt signal conversion table and an interrupt code table. In the figure, 1 is a terminal, 2 is a character key, and 3 is a host. 4 is an interaction control section, 5 is an interrupt signal extension section, 6
1 represents an interrupt signal 1, a signal conversion table, 7 a monitor section, 8 an interrupt code table, 9 a mode control section, 10 an application processing section, and 11 an interrupt processing section. Patent applicant Fujitsu Limited

Claims (1)

Claims: In a data processing system constituted by a terminal and a host, an interrupt code table means for calling a corresponding interrupt processing routine based on a 9 interrupt code in the host. A single character code signal inputted manually from the above terminal,
Interrupt signal conversion table means for converting into a specific interrupt code and means for identifying a processing mode in which no data is input are provided, and in the processing mode in which no data is input, character hood input manually from a terminal is determined to be an interrupt signal. ,
An interrupt signal expansion method characterized in that the interrupt signal conversion table means is used to convert a corresponding interrupt code to execute one interrupt process.