JPS6232499B2 - - Google Patents

Description

[Detailed Description of the Invention] (1) Technical Field of the Invention The present invention manages the environmental conditions or states of an information processing device or a packet switch that performs processing in response to input events and environmental conditions. Regarding state management methods.

(2) Background of the technology In devices that determine processing based on input events and environmental conditions, that is, the current state, a table is created in which information such as input events, new states, and processing indicators are registered for each state. This table is searched in response to an input event, the information in the table is obtained, processing is performed according to the processing index in the information, and when the processing is completed, the device is updated according to the information in the table indicating the new state. Information processing is performed in a series of steps: setting the state and receiving the next input event.

(3) Prior art and problems In the above-mentioned device, if the environmental conditions for all input events were conventionally managed using states, the number of states would increase and the table for determining processing would become enormous. There were flaws. Therefore, some environmental conditions have been left as judgment statements in each determined process.
These problems include the need for a large amount of memory due to the increase in the number of states registered in the table, and the fact that each process requires a judgment statement, which reduces processing speed and reduces the reliability of processed information. , it contained problems.

(4) Purpose of the Invention In view of the problems with the conventional device described above, the purpose of the present invention is to provide a state check table for each input event, and check the state using a state mask pattern that focuses on the characteristics of each input event. Based on the concept of masking unnecessary parts of the check table, memory is reduced by reducing the number of states registered in the table, and processing speed is increased and the reliability of processed information is increased by eliminating judgment statements from each process. The aim is to realize improvements in sexual performance.

(5) Structure of the Invention In the present invention, in a state management method for an information processing device in which the processing content is determined based on an input event and the environmental conditions at that time, and the environmental conditions are updated after the processing is completed, the environmental conditions are Centrally manage the state of information processing equipment, create a state mask pattern that focuses on the characteristics of each input event, and input a state check table to obtain the corresponding processing index and state update index from each input event and each state. The state check table is provided for each event, and the state check table uses the state mask pattern to mask unnecessary parts of the input event, and uses the masked state check table to determine the processing index and the value corresponding to each input event and each state. A state management method is provided which is characterized in that a state update index is obtained, a state update pattern table is indexed using the state update index, and required elements of state constituent factors are updated based on the contents of the state update pattern table.

(6) Embodiment of the Invention A procedure for performing a state management method as an embodiment of the present invention and a diagram supplementary explanation of the procedure are listed in the first part.
As shown in FIG. First, when an event is input, a state mask pattern corresponding to the input event is determined. That is, a preset mask pattern table 11 is indexed by an input event to obtain a state mask pattern corresponding to the input event (S1). Next, remove unnecessary elements from the current state using a mask pattern and set it in the register. The code representing the current state is not a logical number, but is determined so that each bit has a meaning. The unnecessary elements (bits) are cleared by ANDing this current state code with the state mask pattern described above, and the result obtained by removing unnecessary elements from the current state is set in the register as the current state after processing. (S2). Next, a state check table 12 corresponding to the input event is obtained. The status check table 12 is set for each input event, and unnecessary elements are removed according to the current status after the aforementioned processing (S3). Next, the same state as the previously processed state is found in the check table 12. In other words, regarding the status check table 12 obtained in step S3,
The current state after processing is searched to find the state update index and processing index in the table (S4).

The steps following each of the steps described above are shown in FIG. In step S5, processing is performed according to the processing index shown in the determined table.
As the processing index, an address directly indicating the location where the actual processing content is described and additional information necessary for the processing are registered. Instead of the address, a pointer that indirectly indicates the location where the processing content is described may be registered. Next, the current state is updated in accordance with the above-mentioned post-processing state update index. Using the pointer registered as the state update index obtained in step S4, the preset state update pattern table 13 is indexed to obtain the AND pattern and OR pattern necessary for state update, and the code 21 indicating the current state is ANDed. A logical operation is performed using the pattern 22 and the OR pattern 24 to obtain the updated current state code 25.
Block 23 is an intermediate value when determining the updated current state code 25 from the current state code 21. The state registered in the above-mentioned state check table is a processed state compared to the current state in which unnecessary parts have been cut off using the mask pattern.
The updated current state cannot be directly registered as a state update index. Therefore, it is necessary to update the state components of the current state by performing logical operation processing using an AND pattern and an OR pattern as shown in the lower part of FIG. 2 (S6). Note that the AND pattern erases the bits to be updated, and the OR pattern sets the bits to be updated.

(7) Effects of the Invention According to the present invention, it is possible to reduce the number of states registered in the state check table, thereby reducing the amount of memory required, and by removing judgment statements from each process, processing speed can be increased. and improved reliability of the processed information can be achieved.

[Brief explanation of the drawing]

FIGS. 1 and 2 are diagrams illustrating a procedure for implementing a state management system as an embodiment of the present invention. 11...Mask pattern table, 12...Status check table, 13...Status update pattern table, 21...Current status code, 22...
AND pattern, 23...Updated state intermediate value, 24
...OR pattern, 25...Updated current status code.

Claims (1)

[Claims] 1 In a state management method for an information processing device in which the processing content is determined by an input event and the environmental conditions at that time and the environmental conditions are updated after the processing is completed, the environmental conditions are centrally managed in the form of the state of the information processing device. However, a state mask pattern focusing on the characteristics of each input event is provided, and a state check table is provided for each input event to obtain the corresponding processing index and state update index from each input event and each state. The state mask pattern is used to mask unnecessary parts of the input event, the masked state check table is used to obtain the processing index and state update index corresponding to each input event and each state, and the state update index is calculated using the state mask pattern. A state management method characterized in that a state update pattern table is indexed by a state update pattern table, and required elements of state constituent factors are updated based on the contents of the state update pattern table.