Name: kjt_set_commander

Action: Sets a "permanent" command string that is to be launched when progams exit

Input Registers: HL = location of command string (40 chars max)

Output Registers: None

Notes:

• The "commander program" will run on when a program exits back to FLOS unless that program specifically tells FLOS to launch some other program (with A=$FE on exit). In this case, the commander program will eventually launch when control is passed back to the FLOS CLI (IE: A <> $FE on exit)

• To remove the commander string, point HL at a null string (a zero btyte in memory) and call the routine.