You can specify based variables by name only, in which case the implicit variable basing is used if available. This is:

• The variable basing which was defined when the variable was declared. For some variables, such as parameters, this information is determined during the extraction process (by ASMLANGX).
• The variable basing as redefined by an active assembler USING statement.

There are limitations in the processing of some Assembler USING statements by ASMLANGX, which in turn limits ASMIDF. These USING statements are:

• Dependent USINGs (labeled and unlabeled).
• USINGs coded with an end value.
• USINGs that do not cover the start of an area:

       USING MYAREA+4096,R8   - There is no USING MYAREA,R7