Tandy 1000 Programmer's Reference Manual page 99

Chapter
1 I System Calls
Getvector
Get Interrupt Vector
Function Call 35H
Returns the interrupt vector associated with a specified
interrupt. Note that programs should never get an inter-
rupt vector by reading the low memory vector table
directly.
Entry Conditions:
AH
=
35H
AL
=
interrupt number
E xi t Conditions
:
ES:BX
=
pointer to interrupt routine
Error Returns: None.
Example:
Get Vec tor equ 35H
mov
a1,interrupt
mov
ah,GetVector
int
21 H
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