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DOSREQ             Calls DOS interrupt 21H


Syntax:        DOSREQ number

Description:   Calls DOS interrupt 21H with the request specified by
               number.  All necessary setup (other than loading the AH
               register) must be performed before issuing this call.


----------------------------------- Example --------------------------------

   The following example demonstrates how to call int 21H to obtain the
   current DOS path:

        $define GET_CURDIR      0047H

        DOSREQ  GET_CURDIR