This is an unlabeled tape known as xpl-compiler-890799-A00, submitted to the XDS User Group Library by Lawrence Livermore Laboratory. It includes several files of source code for an XPL compiler ported to the GORDO OS, an assembly language file with the GORDO user interface file (MASTER) and a memory image of the GORDO OS, including the A-System.
A GORDO reference manual is included.
There are two other XPL tapes that have not been read yet.
The PAL manual has an entry for another GORDO tape (890533) submitted from LLL that has not been found.