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LX51 User's Guide
LX51 Introduction Linking Programs 
Locating Program Objects Classic 8051 Devices 
Standard Application Example Code Banking Example Extended 8051 Devices Standard Application Example Code Banking Example Using Wildcards Special ROM Handling Class Information Segment Information Using a Target Monitor Data Overlaying Code Banking Real-Time Programs Error MessagesUsing Wildcards
The LX51 Linker allows you to specify wildcards when specifying segment names in the SEGMENTS directive. An obvious benefit of wildcards is the ability to locate all segments from a single source module without specifying every individual segment name.
LX51 myfile.obj SEGMENTS (?PR?*?myfile (C:0x1000))
There are numerous special-purpose applications where locating segments with wildcards is desirable. For example, you may use wildcards to locate groups of segments into a 2 KByte block. Then, you may use ACALL and AJMP instructions (rather than LCALL and LJMP) for function calls within this group.
Note
- The asterisk (*) is the only wildcard allowed and only one wildcard is possible.
- Wildcards are not allowed with the LAST parameter of the SEGMENTS directive.
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