We can't just copy the documentation from TI's PDF, that'd be a copyright violation.

As for adding the export target to ld-tigcc, one problem is that the TIGCC IDE and tigcc.exe in Delphi use a link.dll which delegates part of the exporting to Delphi code. That's annoying code duplication and means you'll have to write some Delphi to fully implement the feature. (This is one reason I want to move to KTIGCC everywhere.)