| 摘要 |
PURPOSE:To improve the properties of following a fluctuation in an engine, by a method wherein, when following interruption occurs during execution of processing of interruption by means of a control part, after present execution of interruption processing is completed, the following interruption processing is executed in priority. CONSTITUTION:In control, firstly, interruption processing is started, secondly, it is decided whether the interruption is interruption under interruption, and since it is usually NO, protection of resistor is conducted and protection of a present stack.pointer value is conducted. Thirdly, it is decided whether an engine is under high rotation, and when under low rotation, after processing A is executed, an instruction, according to which interruption is permitted, is executed. In which case, when a following interruption occurs after permission of reinterruption in a step 105, it is jumped to a step 100. Decision of under- interruption is effected, and a stack pointer value, protected in a step 102 for processing of preceding interruption, is set to a stack pointer in a step 109.
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