@node _bios_equiplist, bios
@findex _bios_equiplist
@subheading Syntax

@example
#include <bios.h>

unsigned _bios_equiplist(void)
@end example

@subheading Description

This function returns the equipment word from BIOS request 0x11.  The
bits correspond to the following values:

@example
Bits  Meaning
0     True (1) if disk drive(s) installed
1     True (1) if math coprocessor installed
2-3   System RAM in 16K blocks (16-64K)
4-5   Initial video mode:
           00 = Reserved
           01 = 40 x 25 color
           10 = 80 x 25 color
           11 = 80 x 25 monochrome
6-7   Number of floppy-disk drives installed
      (00 = 1, 01 = 2, etc.)
8     False (0) if and only if a Direct Memory Access (DMA)
      chip is installed
9-11  Number of RS232 serial ports installed
12    True (1) if and only if a game adapter is installed
13    True (1) if and only if an internal modem is installed
14-15 Number of printers installed
@end example

@subheading Return Value

The equipment word.

@subheading Portability

@portability !ansi, !posix

@subheading Example

@example
if ( _bios_equiplist() & 0xc000 )
  do_printing();
@end example