@Override
	public String toString() {
		return "DWARFRegisterMappings [dwarfRegisterMap=" + dwarfRegisterMap + ", callFrameCFA=" +
			callFrameCFA + ", stackPointerIndex=" + stackPointerIndex +
			", useFormalParameterStorage=" + useFormalParameterStorage + "]";
	}
Immutable mapping information between DWARF and Ghidra.
<p>
Use {@link DWARFRegisterMappingsManager} to get an instance for a Program's specific
language.
<p>
The data held in this class is read from DWARF register mapping information contained 
in xml files referenced from the language *.ldefs file in an
&lt;external_name tool="DWARF.register.mapping.file" name="register_mapping_filename_here"/&gt; 
<p>
The format is:
<pre>
&lt;dwarf&gt;
  &lt;register_mappings&gt;
      &lt;!-- Simple single mapping: --&gt;
      &lt;!-- NN == dwarf register number --&gt;
      &lt;!-- RegName == Ghidra register name string --&gt;
      &lt;!-- &lt;register_mapping dwarf="NN" ghidra="RegName" /&gt; --&gt;
      
      &lt;!-- Example: --&gt;
    &lt;register_mapping dwarf="0" ghidra="r0" /&gt;
    
      &lt;!-- Single mapping specifying stack pointer: --&gt;
      &lt;!-- NN == dwarf register number --&gt;
      &lt;!-- RegName == Ghidra register name string --&gt;
      &lt;!-- &lt;register_mapping dwarf="NN" ghidra="RegName" stackpointer="true"/&gt; --&gt;
      
      &lt;!-- Example: --&gt;
    &lt;register_mapping dwarf="4" ghidra="ESP" stackpointer="true"/&gt;
    
      &lt;!-- Multiple mapping: --&gt;
      &lt;!-- NN == dwarf register number --&gt;
      &lt;!-- XX == number of times to repeat --&gt;
      &lt;!-- RegNameYY == Ghidra register name string with a mandatory integer suffix --&gt;
      &lt;!-- &lt;register_mapping dwarf="NN" ghidra="RegNameYY" auto_count="XX"/&gt; --&gt;
      
      &lt;!-- Example, creates mapping from 0..12 to r0..r12: --&gt;
    &lt;register_mapping dwarf="0" ghidra="r0" auto_count="12"/&gt;
    
      &lt;!-- Example, creates mapping from 17..32 to XMM0..XMM15: --&gt;
    &lt;register_mapping dwarf="17" ghidra="XMM0" auto_count="16"/&gt;
    
  &lt;/register_mappings&gt;
  
    &lt;!-- Call Frame CFA Value: --&gt;
  &lt;call_frame_cfa value="NN"/&gt;
  
    &lt;!-- Use Formal Parameter Storage toggle: --&gt;
  &lt;use_formal_parameter_storage/&gt;
&lt;/dwarf&gt;
</pre>
Ghidra/Features/Base/src/main/java/ghidra/app/util/bin/format/dwarf/DWARFRegisterMappings.java