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Assembly Language By OSdata.com. Assembly Language is the oldest non-machine language, allowing for a more human readable method of writing programs than writing in binary bit patterns ( or even hexadecimal patterns ). Unlike the other programming languages, assembly language is not a single language, but rather a group of languages. Each processor family ( and sometimes individual processors within a processor family ) has its own assembly language. This web page does not attempt to teach how to program in assembly language. Because of the close relationship between assembly languages and the underlying hardware, this web page will discuss hardware implementation as well as software. Assembly language is much harder to program than high level languages. The programmer must pay attention to far more detail and must have an intimate knowledge of the processor in use. But high quality hand crafted assembly language programs can run much faster and use much less memory and other resources than a similar program written in a high level language. Assembly language programming also gives direct access to key machine features essential for implementing certain kinds of low level routines, such as an operating system kernel or microkernel, device drivers, and machine control.
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