)
Values for 8516 Touch Screen function number:
00h check initialization and reset (see #03968)
14h set user-defined subroutine (see #03969)
Notes: each driver function takes two stack parameters using Pascal calling
conventions: address of parameter block and address of results buffer
all pointers are FAR pointers
on return, AX contains the status of the call:
AX = 0000h successful
0001h invalid input
0002h interface error
0003h unable to perform function