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五、微型计算机的汇编语言和汇编器1.微型计算机的程序设计语言计算机的程序设计语言一般可以分为3级:机器语言、汇编语言和高级语言。由于机器语言难写、难读、容易出错和难于修改,因此只要有支持软件(汇编器或编译器)人们就不会再用机器语言编程了。在考虑微型计算机的软件编程语言时,实际上是在汇编语言和高级语言之间作出选择。微型计算机大多数是用于针对某一特定对象的实用系统,这种系统的软件特点是:一般不变化,软件的编制是一次性的。软件以固件形式提供,因此不但要考虑软件的研制成本而且还要考虑它的硬件成本。
Five, micro-computer assembly language and assembler 1. Microcomputer programming language Computer programming languages generally can be divided into three levels: machine language, assembly language and high-level language. Due to the hard-to-read, hard-to-read, error-prone and difficult-to-modify machine language, people are no longer programmed in machine language with support software (assembler or compiler). When thinking about the microcomputer’s software programming language, you actually make a choice between assembly language and high-level language. Microcomputers are mostly practical systems for a specific object. The software features of this system are: Generally, the software is not changed. The software is compiled once and for all. Software is provided as firmware, so consider not only the development costs of the software but also its hardware costs.