as: Labels
5.1 Labels
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A "label" is written as a symbol immediately followed by a colon ':'.
The symbol then represents the current value of the active location
counter, and is, for example, a suitable instruction operand. You are
warned if you use the same symbol to represent two different locations:
the first definition overrides any other definitions.
On the HPPA, the usual form for a label need not be immediately
followed by a colon, but instead must start in column zero. Only one
label may be defined on a single line. To work around this, the HPPA
version of 'as' also provides a special directive '.label' for defining
labels more flexibly.
Info Catalog
as: Symbols
as: Setting Symbols