F.PMC - find a user's PMC entry.

Usage:

memadr = f.pmc(userid, packname);

Where:

userid: points to two words with the BCD userid of the user whose PMC entry is wanted.
packname: is a right-justified, five-character BCD packname of a mounted removable pack.
memadr: contains the buffer pointer in the upper 18 bits, and the memory pointer to the PMC entry in the lower 18 bits.

Description:

F.PMC is used to find the PMC entry for a userid. If an error occurs, F.PMC returns the negative of the FMS status. The FMS status is also put into F.STAT -- see "expl file system status".