User's Manual

DIGITAL-LOGIC AG MSM855/HLV/B/B2 Detailed Manual V1.0A
64
0Fh Shutdown Code
10h Diskette Drives
Bits 7-4 = Diskette Drive A
0000 = Not installed
0001 = Drive A = 360 kB
0010 = Drive A = 1.2MB
0011 = Drive A = 720 kB
0100 = Drive A = 1.44MB
0101 = Drive A = 2.88MB
Bits 3-0 = Diskette Drive B
0000 = Not installed
0001 = Drive B = 360 kB
0010 = Drive B = 1.2MB
0011 = Drive B = 720 kB
0100 = Drive B = 1.44MB
0101 = Drive B = 2.88MB
11h Reserved
12h Fixed (Hard) Drives
Bits 7-4 = Hard Drive 0, AT Type
0000 = Not installed
0001-1110 = Types 1-14
1111 = Extended drive types 16-44.
See location
19h.
Bits 3-0 = Hard Drive 1, AT Type
0000 = Not installed
0001-1110 = Types 1-14
1111 = Extended drive types 16-44.
See location
2Ah.
13h Reserved
14h Equipment
Bits 7-6 = Number of Diskette Drives
00 = One diskette drive
01 = Two diskette drives
10, 11 = Reserved
Bits 5-4 = Primary Display Type
00 = Adapter with option ROM
01 = CGA in 40 column mode
10 = CGA in 80 column mode
11 = Monochrome
Bits 3-2 = Reserved
Bit 1 = Math Coprocessor Presence
0 = Not installed
1 = Installed
Bit 0 = Bootable Diskette Drive
0 = Not installed
1 = Installed
15h Base Memory Size (in kB) - Low Byte
16h Base Memory Size (in kB) - High Byte
17h Extended Memory Size (in kB) - Low Byte
18h Extended Memory Size (in kB) - High Byte
19h Extended Drive Type - Hard Drive 0
1Ah Extended Drive Type - Hard Drive 1