| 摘要 |
<p>PURPOSE:To prolong the life of a battery and to rapidly improve operation time in a handy terminal driven by the battery. CONSTITUTION:The request of input (generation of event function) is given from APL to a system. Then, the system executes keyboard input, bar code input, the extension exchange of respective H/W interruption vectors on account of the deterioration of main battery voltage and a halt processing of CPU is executed by the function. CPU after a halt is restarted by a return from the system as against the interruption from H/W, namely, the preservation/check of an interruption cause, keyboard input, bar code input, and the extension return of the respective H/W interruption vectors on account of the deterioration of main battery voltage.</p> |
