KR970066915A

KR970066915A - Control method of task operation mode for multitasking

Info

Publication number: KR970066915A
Application number: KR1019960009639A
Authority: KR
Inventors: 예재만; 권상혁
Original assignee: 유상부; 삼성중공업 주식회사
Priority date: 1996-03-30
Filing date: 1996-03-30
Publication date: 1997-10-13

Abstract

본 발명은 멀티타스킹을 위한 타스키의 동작모드 제어방법에 관한 것으로, 타스크별로 부여된 타스크식별값을 서열화하여 테이블로 작성하고, 상태값을 초기화하는 단계와 실행을 요구하는 타스크에 대응하는 타스크식별값과 기설정된 타스크순위값을 OR연산하고, 그 연산결과로부터 얻어진 연산값을 상태값으로 갱신하는 단계와, 상기 갱신단계에 의해 갱신된 상태값에 근거하여 상기 테이블상에서 타스크지정값을 검색하는 단계 및 상기 검색단계로부터 얻어진 타스크지정값에 대응하는 타스크를 최우선으로 하여 타스크의 동작모드를 결정하는 단계에 의하여 달성된다. 본 발명은 신속하게 타스크의 동작모드를 결정할 수 있으며, 냉동기, 세탁기 등의 마이컴에서 멀티타스킹에 수행시 매우 적합하다.The present invention relates to a method of controlling an operation mode of Tasks for multitasking, the method comprising the steps of: preparing a task identification value assigned for each task as a table and initializing a state value; A step of performing an OR operation on the identification value and a predetermined task rank value and updating the operation value obtained from the operation result with the status value and searching the task assignment value on the table based on the status value updated by the updating step And determining the operation mode of the task with the task corresponding to the task designation value obtained from the retrieving step as the top priority. INDUSTRIAL APPLICABILITY The present invention can quickly determine an operation mode of a task, and is very suitable for performing multitasking in a microcomputer such as a refrigerator or a washing machine.

Description

Control method of task operation mode for multitasking

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is a trivial issue, I did not include the contents of the text.

제1도는 본 발명에 따른 타스크식별값과 타스크순위값의 대응관계를 나타내는 도면, 제2도(가)는 본 발명에 따른 테이블과 상태값을 나타내는 도면, 제2도(나)는 본 발명에 따른 상태값과 타스크식별값을 나타내는 도면, 제3도는 본 발명에 따른 타스크의 동작모드를 나타내는 도면.FIG. 2 is a diagram showing a table and state values according to the present invention. FIG. 2 (b) is a diagram showing the relationship between a task identification value and a task ranking value according to the present invention. FIG. 3 is a diagram showing an operation mode of a task according to the present invention; FIG.

Claims

A method of controlling an operation mode of a task to perform multitasking, the method comprising the steps of: preparing a task identification value assigned for each task, creating a table, and initializing a status value; ORing a task identification value corresponding to a task requesting execution and a predetermined task ranking value, and updating an operation value obtained from the operation result with a status value; Retrieving a task designation value on the table based on the state value updated by the updating step; And determining an operation mode of the task with the task corresponding to the task designation value obtained from the searching step as a left and a right line.

The method according to claim 1, wherein the operation mode of the task is controlled by limiting the number of the tasks to four or less.

3. The method according to claim 2, wherein when the number of tasks is four, the task ranking values have 1, 2, 4, and 8 according to rank, and the table is created as follows: A method for controlling an operation mode of a task.

Here, the number written in the table is the task identification value corresponding to each task.

3. The method according to claim 2, wherein the status value updated by the OR operation of the task identification value and the task ranking value corresponding to the predetermined task is any one of 1 to 16 .

※ Note: It is disclosed by the contents of the first application.