_bios_equiplist

Syntax

#include <bios.h> unsigned _bios_equiplist(void)

Description

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

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

Return Value

The equipment word.

Portability

ANSI/ISO C	No
POSIX	No

Example

if ( _bios_equiplist() & 0xc000 ) do_printing();