INT 60 U - PC/370 v4.2 - ???
        ???
Return: ???
Program: PC/370 is an IBM 370 emulator by Donald S. Higgins
Note:   this is the default interrupt, however the documentation includes
          instructions for patching the system for another interrupt
SeeAlso: INT 2F/AX=7F24h,INT DC"PC/370"

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