ERBASE - define ERR.NO offsets.

Usage:

erbase

Description:

ERBASE defines offsets for error tables:

ER.FMS   0   -- FMS errors
ER.DIO   1   -- I/O errors
ER.LIB   2   -- library errors
ER.ANS   3   -- errors required by ANSI C
ER.TTY   4   -- TTY generated errors.