1F
7C
BIOS
CGA graphic char ac ter font
20
80
MS- DOS
Pro gram ter mi nate
21
84
MS- DOS
DOS func tion call
22
88
MS- DOS
Ter mi nate Ad dress
23
8C
MS- DOS
Ctrl- Break Ad dress
24
90
MS- DOS
Fa tal Er ror Vec tor
25
94
MS- DOS
Ab so lute disk read
26
98
MS- DOS
Ab so lute disk write
27
9C
MS- DOS
Ter mi nate
28
A0
MS- DOS
Idle Sig nal
29
A4
MS- DOS
TTY out put
2A
A8
MS- DOS
MS- Net serv ices
2F
BC
MS- DOS
Print Spool
30
C0
MS- DOS
Long jump in ter face
33
CC
MS- DOS
Mouse func tions
3F
FC
MS- DOS
Over lay in ter rupt
40
100
BIOS
Floppy I/O when fixed disk
is pres ent
41
104
BIOS
Fixed disk 1 pa rame ter ta ble
42
108
BIOS
EGA Chain
43
10C
BIOS
EGA Pa rame ter ta ble pointer
44
110
BIOS
EGA graph ics char ac ter font
4A
128
BIOS
AT Alarm exit ad dress
50
140
BIOS
AT Alarm in ter rupt
51
144
BIOS
Mouse func tions
5A
168
NET
Func tions
5B
16C
NET
Boot chain
5C
170
NET
Net BIOS en try
67
19C
MS- DOS
EMS func tions
6D
1B4
VGA
VGA Serv ice
70
1C0
Hard ware
IRQ8 - Real Time clock
71
1C4
Hard ware
IRQ9 - Re di rected IRQ2
72
1C8
Hard ware
IRQ10 - Un as signed
73
1CC
Hard ware
IRQ11 - Un as signed
74
1D0
Hard ware
IRQ12 - Un as signed
75
1D4
Hard ware
IRQ13 - Un as signed
76
1D8
Hard ware
IRQ14 - IDE Fixed Disk
77
1DC
Hard ware
IRQ15 - Un as signed
80
200
F0
3C0
Ba sic
F1
3C4
FF
3FC
Not used
Page 7 - 2
OPERATIONS MANUAL LBC-Plus
991206
WinSystems - "The Embedded Systems Authority"