Editing Directive (programming) (section)

===Assembly language===
* In [[assembly language]], directives, also referred to as pseudo-operations or "pseudo-ops", generally specify such information as the target machine, mark separations between code sections, define and change assembly-time variables, define macros, designate conditional and repeated code, define reserved memory areas, and so on.  Some, but not all, assemblers use a specific syntax to differentiate pseudo-ops from instruction mnemonics, such as prefacing the pseudo-op with a period, such as the pseudo-op <code>.END</code>, which might direct the assembler to stop assembling code.
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