vl[n | p | r | v]
Lists the interrupt vectors that the debugger intercepts. Vectors that have been set with the vt command (as opposed to vs) are listed with an asterisk (*) following the vector number.
n
Lists the traps that beep when encountered.
p
Lists the protected-mode vectors only.
r
Lists the real-mode vectors only.
v
Lists the virtual 8086 (V86) mode vectors only.