vs[n | p | r | v] number[,number[,...]]
The vs command adds a new interrupt vector to the list of intercepted vectors. Vectors set by this command do not intercept interrupts that occur at ring 0.
n
Beep when trap encountered.
p
Set trap for protected-mode vectors only.
r
Set trap for real-mode vectors only.
v
Set trap for virtual 8086 (V86) mode vectors only.
number
Specifies the interrupt vector to intercept.