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Arm Compiler armasm User Guide : Syntax of numeric local labels

Syntax of numeric local labels

When referring to numeric local labels you can specify how armasm searches for the label.

Syntax

n[routname] ; a numeric local label

%[F|B][A|T]n[routname] ; a reference to a numeric local label

where:

n

is the number of the numeric local label in the range 0-99.

routname

is the name of the current scope.

%

introduces the reference.

F

instructs armasm to search forwards only.

B

instructs armasm to search backwards only.

A

instructs armasm to search all macro levels.

T

instructs armasm to look at this macro level only.

Usage

If neither F nor B is specified, armasm searches backwards first, then forwards.

If neither A nor T is specified, armasm searches all macros from the current level to the top level, but does not search lower level macros.

If routname is specified in either a label or a reference to a label, armasm checks it against the name of the nearest preceding ROUT directive. If it does not match, armasm generates an error message and the assembly fails.

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