INT 60 u - HP 95LX System Manager - SET TIME PARSING RULE
        DI = 0B13h
        STACK:  2 WORDs unused dummies (for calls from high level languages)
                WORD    new parsing rule
                        01h HH:MM:SS (am/pm)
                        02h HH:MM:SS (24hr)
                        03h HHMM:SS (24hr)
                        04h HH:MM:SS.hh (24hr)
                        05h HH:MM (am/pm)
                        06h HH:MM (24hr)
                        07h HHMM (24hr)
Return: ???
        STACK unchanged
SeeAlso: INT 60/DI=0B12h