HelpPC 2.10 Quick Reference Utility Copyright 1991 David Jurgens

                    INT 2A,3 - Check if Direct I/O Allowed

       AH = 03
       DS:SI = pointer to ASCIIZ disk device name or pathname (including ":")
       on return:
       CF = set if disk access is NOT allowed
          = clear if disk access is allowed

       - do not use INT 13, INT 25 or INT 26 if this function returns
         with the CF set
       - see  INT 5F,2

Esc or Alt-X to exit int 2a,3 Home/PgUp/PgDn/End ←↑↓→
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