Standard Features 39
29
41
DOS CON Dev. Raw Output
Same as Real Mode
2A
42
DOS 3.x+ Network Comm
Same as Real Mode
2B
43
DOS Internal Use
Same as Real Mode
2C
44
DOS Internal Use
Same as Real Mode
2D
45
DOS Internal Use
Same as Real Mode
2E
46
DOS Internal Use
Same as Real Mode
2F
47
DOS Print Spooler Driver
Same as Real Mode
30-60
48-96
Reserved by DOS
Same as Real Mode
61-66
97-102
User Available
Same as Real Mode
67-6F
103-111
Reserved by DOS
Same as Real Mode
70
112
IRQ8
Real-Time Clock
71
113
IRQ9
Redirect to IRQ2
72
114
IRQ10
Not Assigned
73
115
IRQ11
Not Assigned
74
116
IRQ12
Mouse
75
117
IRQ13
Math Coprocessor
76
118
IRQ14
AT Hard Drive
77
119
IRQ15
Flash Drive
78-7F
120-127
Reserved by DOS
Same as Real Mode
80-F0
128-240
Reserved for BASIC
Same as Real Mode
F1-FF
241-255
Reserved by DOS
Same as Real Mode
Table 2-4 Interrupt Vector Table (Continued)
Interrupt No.
IRQ Line Real Mode
Protected Mode
HEX
DEC