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单片微型计算机,在一个芯片上集成了CPU、RAM、ROM、I/O、定时器/计数器等多种“部件”,几乎包含了一个数字处理系统所需的全部功能。它体积小、价格低、功能强,是微机应用产品化的理想机种,在实现工业自动控制、仪器仪表智能化等方面有着广阔的发展前途。近几年来,在国内单片机的开发应用日益广泛,取得了良好的效果。但由于国内开发单片机的时间尚短,有关单片机实用子程序的资料还比较缺乏,特别是MCS—48单片机用于浮点乘法、除法运算的较完整的实用子程序尚未见发表。现将我们编制的有关程序提供给读者,供使用时参考。
Single-chip microcomputers, which integrate multiple “components” such as CPU, RAM, ROM, I / O, timer / counters, on a single chip, cover almost all the functionality required of a digital processing system. It is small in size, low in price and powerful in function, and is an ideal model for microcomputer application. It has a promising future in industrial automatic control and instrumentation intelligent. In recent years, the development and application of SCM in China is more and more widely and has achieved good results. However, due to the short development time of SCM in China, the information about the practical subroutine of SCM is still relatively scarce. In particular, the more complete and practical subroutine of MCS-48 SCM for floating-point multiplication and division has not been published yet. Now we prepare the relevant procedures provided to readers for reference.