The ALIAS directive creates an alias for a symbol.
ALIAS name, aliasname
is the name of the symbol to create an alias for.
is the name of the alias to be created.
The symbol name must already be defined in the source file before creating an alias for it. Properties of name set by the EXPORT directive are not inherited by aliasname , so you must use EXPORT on aliasname if you want to make the alias available outside the current source file. Apart from the properties set by the EXPORT directive, name and aliasname are identical.
baz bar PROC BX lr ENDP ALIAS bar,foo ; foo is an alias for bar EXPORT bar EXPORT foo ; foo and bar have identical properties ; because foo was created using ALIAS EXPORT baz ; baz and bar are not identical ; because the size field of baz is not set
EXPORT bar IMPORT car ALIAS bar,foo ; ERROR - bar is not defined yet ALIAS car,boo ; ERROR - car is external bar PROC BX lr ENDP