When To Use Assembly Language
I personally think that except as a learning exercise it is a waste of time writing something in ASM that can be written acceptably fast in a high-level language. Assembly language fits for the following: * Low level control. When you need to change the flags, or the control registers of the processor, as when entering protected mode. * Speed. Programs written in machine language execute fast! It can execute 10-100 times the speed of BASIC, and about twice as fast as a program written in C or Pascal. * Time Critical Code. Critical sections of programs written in higher level languages can be written in assembly to speed up sections. * Small program size. When you write a TSR for example this is very useful. Writing interrupt handlers is where assembly language shines. Assembly language is very flexible and powerful; anything that the hardware of the computer is capable of doing can be done in assembly.
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