GE V7768 - Table 2-4 Interrupt Vector Table

38 V7768/V7769 Hardware Reference Manual
Table 2-4 Interrupt Vector Table
Interrupt No.
IRQ Line Real Mode Protected Mode
HEX DEC
00 0 Divide Error Same as Real Mode
01 1 Debug Single Step Same as Real Mode
02 2 NMI Memory Parity Error,
VME Interrupts
Same as Real Mode
(Must be enabled in BIOS Setup)
03 3 Debug Breakpoint Same as Real Mode
04 4 ALU Overflow Same as Real Mode
05 5 Print Screen Array Bounds Check
06 6 Invalid OpCode
07 7 Device Not Available
08 8 IRQ0 Timer Tick Double Exception Detected
09 9 IRQ1 Keyboard Input Coprocessor Segment Overrun
0A 10 IRQ2 BIOS Reserved Invalid Task State Segment
0B 11 IRQ3 COM2 Serial I/O Segment Not Present
0C 12 IRQ4 COM1 Serial I/O Stack Segment Overrun
0D 13 IRQ5 Unassigned Not Assigned
0E 14 IRQ6 Floppy Disk Controller Page Fault
0F 15 IRQ7 Not Assigned Not Assigned
10 16 BIOS Video I/O Coprocessor Error
11 17 System Configuration Check Same as Real Mode
12 18 Memory Size Check Same as Real Mode
13 19 XT Floppy/Hard Drive Same as Real Mode
14 20 BIOS Comm I/O Same as Real Mode
15 21 BIOS Cassette Tape I/O Same as Real Mode
16 22 BIOS Keyboard I/O Same as Real Mode
17 23 BIOS Printer I/O Same as Real Mode
18 24 ROM BASIC Entry Point Same as Real Mode
19 25 Bootstrap Loader Same as Real Mode
1A 26 Time of Day Same as Real Mode
1B 27 Control/Break Handler Same as Real Mode
1C 28 Timer Control Same as Real Mode
1D 29 Video Parameter Table Pntr Same as Real Mode
1E 30 Floppy Parm Table Pntr Same as Real Mode
1F 31 Video Graphics Table Pntr Same as Real Mode
20 32 DOS Terminate Program Same as Real Mode
21 33 DOS Function Entry Point Same as Real Mode
22 34 DOS Terminate Handler Same as Real Mode
23 35 DOS Control/Break Handler Same as Real Mode
24 36 DOS Critical Error Handler Same as Real Mode
25 37 DOS Absolute Disk Read Same as Real Mode
26 38 DOS Absolute Disk Write Same as Real Mode
27 39 DOS Program Terminate,
Stay Resident
Same as Real Mode
28 40 DOS Keyboard Idle Loop Same as Real Mode