vc (Vector Clear)

vc[n | p | r | v] number[,number [,...]]
 

The vc command clears the specified interrupt vector and reinstalls the previous interrupt vector.

n

Removes the beep from traps that beep when encountered; does not clear the traps.

p

Clears protected-mode vectors only.

r

Clears real-mode vectors only.

v

Clears virtual 8086 (V86) mode vectors only.

number

Specifies the interrupt vector to clear.

For protected-mode games, type vcp 1 3 before running the app, and vtp 1 3 after exiting the app, to avoid "unexpected trace interrupt" errors. For DOS apps, use vcv 1 3 and vsv 1 3. To recover from the error message, first remove the vector, then type gt.