IN.TSS - tell whether running in batch or TSS.

Alternate Entry Name: INTSS

Usage:

B:
   status = in.tss();

C:
   #equate in_tss in.tss
   int in_tss(void);

Description:

IN.TSS returns a "status" of zero if the program is running in GCOS batch. If the program is running under TSS, IN.TSS returns the TSS copy number (1, 2, 3, or 4), or 8 for TS8.