Click above to get retro games delivered to your door ever month!
[<<Previous Entry] [^^Up^^] [Next Entry>>] [Menu] [About The Guide]
INT 27h (39) Terminate and Stay Resident
Terminates a program and leaves a specified portion installed in
memory.
On entry: CS Segment of PSP
DX Address at which next program may be loaded
(i.e., highest address to stay resident + 1)
--------------------------------------------------------------------------
Note: Interrupt 27h is the original (i.e. DOS 1.x) method
of creating a TSR program. Unlike its DOS 2.0-and-
later counterpart, Interrupt 21h, Function 31h, it
does not allow you to pass a return code. And the
amount of memory that may kept resident is limited
to 64K.
Use INT 21h function 31h to keep EXE programs
resident in memory.
Files are not closed by Interrupt 27h.