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Update manpage documentation about labels

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- Local labels can now be exported.
- Local labels can be declared as Scope.Label in addition of .Label.

Signed-off-by: Antonio Niño Díaz <antonio_nd@outlook.com>
This commit is contained in:
Antonio Niño Díaz
2017-06-13 20:16:42 +01:00
parent 62d820c261
commit efaad99f25
1 changed files with 5 additions and 1 deletions
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src/asm/rgbasm.5
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@@ -223,13 +223,17 @@ GlobalLabel
AnotherGlobal:
\&.locallabel
\&.yet_a_local:
AnotherGlobal.with_another_local:
ThisWillBeExported:: ;note the two colons
ThisWillBeExported.too::
.Ed
.Pp
In the line where a label is defined there musn't be any whitespace before it.
Local labels are only accessible within the scope they are defined.
A scope starts after a global label and ends at the next global label.
Declaring a normal label with :: does an EXPORT at the same time.
Declaring a label (global or local) with :: does an EXPORT at the same time.
Local labels can be declared as scope.local or simply as as .local.
If the former notation is used, the scope must be the actual current scope.
.Pp
Labels will normally change their value during the link process and are thus not
constant.