Int 11H
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Description: Get Equipment Configuration [PC] [AT] [PS/2]
Obtains the equipment list code word from the ROM BIOS.
Input Output
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Nothing AX=equipment list code word
Bit(s) Significance
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14-15 number of printers installed
13 =1 if internal modem installed
(PC and XT only)
=1 if serial printer attached (PCjr)
12 =1 if game adapter installed
9-11 number of RS-232 ports installed
8 reserved
6-7 number of floppy disk drives
(if bit 0 =1)
00=1
01=2
10=3
11=4
4-5 initial video mode
00 reserved
01 40-by-25 color text
10 80-by-25 color text
11 80-by-25 monochrome
2-3 system board RAM size (PC, see Note)
00=16 KB
01=32 KB
10=48 KB
11=64 KB
2 =1 if pointing device installed (PS/2)
1 =1 if math coprocessor installed
0 =1 if floppy disk drive(s) installed
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