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0:410h                   Equipment List

 Length: 2 bytes

    Contains a list of the hardware installed on the system.

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                        Equipment List

  F E D C B A 9 8  7 6 5 4 3 2 1 0
  x x . . . . . .  . . . . . . . .  Number of printers installed
  . . x . . . . .  . . . . . . . .  Internal modem installed
  . . . x . . . .  . . . . . . . .  Game adapter installed (always 1 on PCJr)
  . . . . x x x .  . . . . . . . .  Number of RS-232 ports
  . . . . . . . x  . . . . . . . .  Reserved
  . . . . . . . .  x x . . . . . .  Number of diskettes - 1 (0=1 diskette)
  . . . . . . . .  . . x x . . . .  Initial video mode (see below)
  . . . . . . . .  . . . . x x . .  Reserved
  . . . . . . . .  . . . . . . x .  Math coprocessor installed
  . . . . . . . .  . . . . . . . x  1=diskettes present, 0=no diskettes


                     Initial video mode

               Value                 Meaning
                 00                  Reserved
                 01                  40 x 25 Color
                 10                  80 x 25 Color
                 11                  80 x 25 Monochrome

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       Notes:         Use INT 11h to access the equipment information via
                      the ROM BIOS interface.

                      The equipment list is initialized during the power-
                      up test (POST).

                      For the IBM PC, XT, and PCjr, bits 2 and 3 lists the
                      amount of RAM installed on the system board in
                      increments of 16K. For example, 00 means 16K, while
                      11 means 64K.

                      Bit 2 on the XT-286 reports whether or not a
                      pointing device is installed.

                      Bit 0 indicates only whether the system has one or
                      more diskette drives. Refer to bits 6 and 7 to find
                      out how many diskettes are actually present. To
                      determine the number of hard disks installed, use
                      INT 13h, Function 8.

                      If the DIP switches for PCs and XTs are not set
                      correctly reflecting the presence of a math
                      coprocessor, then bit 1 (math coprocessor present)
                      may be incorrect. A better test for the math
                      coprocessor would be to test it directly by
                      executing a math coprocessor instruction and then
                      checking to see if the instruction was executed.