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DEVICE DRIVER FORMAT
A device driver is a COM or EXE file that contains all of the
code needed to control an add-in device. It has a special header
to identify it as a device, define the strategy and interrupt
entry points, and define its various attributes.
NOTE: For device drivers the COM file must not use the ORG
100h. Since the driver does not use the program segment
prefix, it is simply loaded without offset. Therefore
the memory image file must have an origin of 0 (ORG 0
or no ORG statement). |