Does anyone have the detailed explanation for the PSMD_ routines (in DB2 v9.x LUW) ?

e.g PSMD_SET_COMPILEMODE specifies to compile the routine for debugging when the single parameter has value 1.

I'm wondering if there are other values for the parameter, and their meaning, and why it's omitted from the DB2 Infocenter.

This is one of 9 routines with names like sysproc.psmd% that don't appear in the DB2 infocenter, and I'm wondering if anyone has the specifications for these:
PSMD_CLEAR_SESSION
PSMD_GET_LEVEL
PSMD_GET_REPORT
PSMD_INIT_SESSION
PSMD_PUT_COMMAND
PSMD_SET_COMPILEMODE
PSMD_SET_DEBUGINFO
PSMD_SET_SESSION
PSMD_TERM_SESSION