Int 0D  C - Irq5 - Fixed Disk (pc,xt), Lpt2 (at), Reserved (ps/2)          [H]


Notes: under DESQview, only the INT 15h vector and BASIC segment address (the
     word at 0000h:0510h) may be assumed to be valid for the handler's
     process
   the Tandy 1000, 1000A, and 1000HD use IRQ2 for the hard disk; the
     1000EX, HX, RLX, RLX-HD, RLX-B, RLX-HD-B use IRQ5 instead; the
     1000RL, RL-HD, SL, SL/2, TL, TL/2, and TL/3 are jumper-selectable
     for either IRQ2 or IRQ5 (default IRQ5); the 1000SX and TX are
     DIP-switch selectable for IRQ2 or IRQ5 (default IRQ2); the RSX and
     RSX-HD use IRQ14.  Tandy systems which use IRQ2 for the hard disk
     interrupt use IRQ5 for vertical retrace.
   may be masked by setting bit 5 on I/O port 21h

See Also: INT 0E"IRQ6",INT 0F"IRQ7",INT 55"DESQview",INT 5D"DoubleDOS"

See Also: INT 7D"GO32"