DRL RETFIL (octal 14) - return a file.

Usage:

drl    retfil
zero   L(fileid),L(buff)

Where:

fileid: is two words containing the file name in lower case ASCII. If the first word contains only the octal number 0777, all files except "sy**" will be deaccessed. If the first word contains only the octal number 0776, all files except "sy**" and "*cf" command files will be deaccessed.
buff: (BSS 380) is a work area used by the file system and required when permanent files are released.

Description:

When a temp file is returned, the file space and PAT entry space are released and the file is deleted from the AFT. When a permanent file is returned, the file system is notified to deaccess the file, the PAT entry is released, and the file is deleted from the AFT.

A file that cannot be found in the AFT is considered to be already released.