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biosequip
=========

Syntax
------

     #include <bios.h>
     
     int biosequip(void);

Description
-----------

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

     1111 1100 0000 0000
     5432 1098 7654 3210  Meaning
     
     ---- ---- ---- ---X  1 = disk drive(s) installed
     ---- ---- ---- --X-  1 = math coprocessor installed
     ---- ---- ---- XX--  System memory 00=16k 01=32k 10=48k 11=64k (non PS/2)
     ---- ---- ---- -X--  1 = pointing device installed (PS/2)
     ---- ---- ---- X---  not used on PS/2
     ---- ---- --XX ----  initial video mode: 01=CO40 10=CO80 11=MONO
     ---- ---- XX-- ----  disk drives 00=1 01=2 10=3 11=4 (zero if bit 1=0)
     ---- ---X ---- ----  1 = no DMA available
     ---- XXX- ---- ----  number of serial ports installed (000=0 001=1 etc)
     ---X ---- ---- ----  1 = game port adapter installed
     --X- ---- ---- ----  1 = internal modem installed (PS/2)
     --X- ---- ---- ----  1 = serial printer attached (non PS/2)
     XX-- ---- ---- ----  number of printers installed (00=0 01=1 10=2 11=3)

Return Value
------------

The equipment word.

Example
-------

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