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Interrupt 22h Terminate Address
This interrupt transfers control to the far (dword) address at
this interrupt location when an application program terminates.
The default address for this interrupt is 0:0088h through
0:008Bh. This address is copied into the program's Program
Segment Prefix at bytes 0Ah through 0Dh at the time the segment
is created and is restored from the PSP when the program
terminates. The calling program is normally COMMAND.COM or an
application. Do not issue this interrupt directly, as the EXEC
function call does this for you. If an application spawns a child
process, it must set the Terminate Address prior to issuing the
EXEC function call, otherwise when the second program terminated
it would return to the calling program's Terminate Address rather
than its own. This address may be set with int 21, function 25h.
See Also INT/23h INT/24h |