IBM SC34-6814-04 User Manual

Note: The XALTENF exit, used to handle the “terminal not known” condition, is

also invoked from the terminal allocation program. XALTENF is described on
page “‘Terminal not known’ condition exits XALTENF and XICTENF” on page
224.

Terminal control program exits XTCIN, XTCOUT, and XTCATT

Exit XTCIN

When invoked

After an input event for a sequential device.

Exit-specific parameters

UEPTCTTE

Address of the terminal control table terminal entry (TCTTE). The
TCTTE can be mapped using the DSECT DFHTCTTE.

UEPTIOA

Address of the terminal input/output area (TIOA). Your exit program
should not change the address. The TIOA can be mapped using the
DSECT DFHTIOA. However, fields TIOASAL and TIOASCA are not
programming interfaces.

UEPTCTLE

Address of the terminal control table line entry (TCTLE). The
TCTLE can be mapped using the DSECT DFHTCTLE.

Return codes

UERCNORM

Continue processing.

XPI calls

All can be used. However, note that you cannot use a GETMAIN call to
obtain terminal-class storage for use as a replacement TIOA.

Exit XTCOUT