JP3085308B2 - Processing information management system - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Overview] Regarding a processing information management system for managing processing information, a plurality of processing information setting areas are provided, a pointer pointing to a referenceable area is provided, and processing information is set in an empty processing information setting area. After that, the pointer is switched and the processing information can be updated without the exclusive control of the interrupt routine and the processing information setting routine. A processing information setting routine that switches the referenceable area pointer to point to the newly set processing information setting area after setting the requested processing information for the processing information setting area not pointed to by the area pointer. And the processing information setting pointed to by the referenceable area pointer for the input data etc. received by the interrupt An interrupt routine for performing processing set in the processing information setting area, and performing processing set in the processing information setting area.

[Industrial applications]

The present invention relates to a processing information management system that manages processing information.

[Problems to be solved by conventional technology and invention]

2. Description of the Related Art Conventionally, in a system that processes an event generated by an interrupt function according to processing information, the generated event is received by an interrupt routine and processed according to the processing information. At this time, the processing information is set in a predetermined area by a processing information setting routine. For this reason, two routines, an interrupt routine and a processing information setting routine, operate. Since the interrupt routine has higher priority, the interrupt routine takes control during the setting of the processing information by the processing information setting routine, and The processing of the setting routine may be temporarily interrupted, and the processing information before the update and the processing information after the update may be mixed, and the processing information is not guaranteed. To solve this, if the processing information setting routine issues a lock command to update the contents of the processing information area and the interrupt routine is started by an interrupt, the processing information setting routine waits until the processing is completed. ,
There is a problem that the asynchronous interrupt processing lacks in high speed.

According to the present invention, a plurality of processing information setting areas are provided, a pointer for pointing to a referenceable area is provided, processing information is set in an empty processing information setting area, the pointer is switched, and the interrupt routine and the processing information setting routine are mutually exclusive. Without control,
The purpose is to enable updating of processing information.

[Means to solve the problem]

 Means for solving the problem will be described with reference to FIG.

In FIG. 1, a processing information setting routine 4 sets processing information in a processing information setting area which is not pointed to by a referenceable area pointer among a plurality of processing information setting areas for setting processing information, and then sets a referenceable area. This is a routine for switching the pointer so as to point to the newly set processing information setting area.

The interrupt routine 6 is an interrupt routine for performing processing set in the processing information setting area pointed to by the referenceable area pointer for input data and the like accepted by the interrupt.

[Action]

In the present invention, as shown in FIG. 1, the processing information setting routine 4 sets processing information in a processing information setting area not pointed to by a referenceable area pointer among a plurality of processing information setting areas in which processing information is set. After that, the referable area pointer is switched so as to point to the newly set processing information setting area, and the input data and the like accepted by the interrupt routine 6 by the interrupt are set in the processing information setting area pointed to by the referable area pointer. The processing that is being performed is performed.

Therefore, the processing information setting routine 4 switches the processing information setting area to update the processing information, thereby eliminating the need for exclusive control between the processing information setting routine 4 and the interrupt routine 6 having the highest priority. , The interrupt routine 6 can quickly perform the processing.

〔Example〕

Next, the configuration and operation of one embodiment of the present invention will be sequentially described in detail with reference to FIGS.

In FIG. 1A, an MS (main storage device) 1 is a memory for storing 2 to 6 pieces of information and programs.

The processing information setting area 2 is an area for setting processing information (described later with reference to FIG. 1 (b)).

The OS (Operating System) 3 is a control program for controlling the system.

The processing information setting routine 4 is for setting processing information in the processing information setting area 2 (described in detail with reference to FIG. 3).

The IO supervisor 5 is a control program for controlling IO (input / output).

The interrupt routine 6 is a routine started by an asynchronous interrupt.

The display 7 is a display for displaying various information.

 The tablet 8 is for inputting various information.

The CPU (central processing unit) 9 performs various controls based on programs stored on the MS 1.

 FIG. 1B shows a processing information setting area.

In FIG. 1 (b), processing information setting areas 1 and 2 are a plurality of areas for setting processing information.

The referenceable area pointer is a pointer that points to the processing information setting areas 1 and 2 in which significant processing information that can be referred to is set. The referable area pointer is switched after the processing information setting routine 4 sets processing information in the empty processing information setting areas 1 and 2.

Next, the overall operation of the present invention will be specifically described with reference to FIG.

In FIG. 2, the application (application program) queues processing 1: input data.

 Process 2: Save input data.

Is selected, and a setting request is made to the processing information setting routine 4.

Sets "process 1" and "input information storage area address" requested by the processing information setting routine 4 in the processing information setting area 2.

In addition, an interrupt occurs in response to a button press by the operator, and the interrupt routine 6 is started.

The interrupt routine 6 captures input data (for example, coordinate values).

Refers to processing information. Here, processing 1, the input information storage area address is read.

 Determines whether the processing is processing 1 or other.

Fetches input data from the input information storage area address and queues the data, corresponding to the processing 1.

The application processes the input data, for example, displays a marker on the display 7 based on the coordinate values.

In the above processing, when the processing information setting routine 4 sets the processing information requested by the application in the processing information setting area 2, after setting this processing content in the empty processing information setting area, the referenceable area pointer is set. Is pointed to the newly set processing information setting area so as to be referred to, thereby eliminating the need for exclusive control between the interrupt routine 6 having a higher priority and the processing information setting routine 4 and enabling the processing by the interrupt routine 6 at high speed. Can be performed.

Next, the operation of setting the processing information in the processing information setting area 2 will be described in detail with reference to FIG.

In FIG. 3, one of the referenceable areas is determined. This is because the referenceable area pointer is 0 (not pointing to the processing information setting area) or 2 (pointing to the processing information setting area 2) in FIG. 1 (pointing to the processing information setting area 1).

Sets “1”, which is an empty processing information setting area, to the change table number when the referable area is 0 or 2.

Sets the vacant processing information setting area “2” as the change table number when the referenceable area is 1.

Updates the contents of the processing information setting area indicated by the change table number (for example, processing, input information storage area address).
This means that the content requested by the application is written (updated and set) in the empty processing information setting area set in the change table number.

Sets the change table number in the referenceable area. This is because, as shown on the right side, L R4, change table... (1) ST R4, referenceable area... Switch. More specifically, the contents of the change table are stored in the register R4 according to (1). Next, the content of this register R4 is stored in the referable area by one machine instruction of (2), and the referable processing information setting area pointed to by the referable area pointer is switched. As a result, there is no need to perform exclusive control between the processing information setting routine 4 and the interrupt routine 6 with a high priority, and the interrupt routine 6 does not need to wait.

〔The invention's effect〕

As described above, according to the present invention, since the processing information setting routine 4 adopts a configuration in which the processing information setting area 4 switches the processing information setting area and updates the processing information, the processing information setting routine 4 and the processing information setting routine 4 have the highest priority. The exclusive control with the high interrupt routine 6 is not required, and the interrupt routine 6 can perform the processing quickly.

[Brief description of the drawings]

FIG. 1 is a block diagram of one embodiment of the present invention, FIG. 2 is an explanatory view of a specific example of the present invention, and FIG. In the figure, 1 is MS, 2 is a processing information setting area, 4 is a processing information setting routine, 6 is an interrupt routine, 7 is a display,
8 represents a tablet.

Claims (1)

(57) [Claims] In a processing information management system for managing processing information processed by a processing information setting routine and an interrupt routine having a higher priority than the processing information setting routine, processing information in which an area for setting processing information is multiplexed is provided. A setting area group; instruction means for indicating a currently valid processing information setting area in the processing information setting area group; and processing information setting areas other than the instruction area without changing the instruction means. Setting means for setting processing information according to a setting routine; changing means for changing the instruction to the set processing information setting area after completion of the setting; and processing information in the processing information setting area specified by the instruction means. And a processing unit for performing a process according to the interrupt routine.