11.5 Free Real Mode Call-Back Address

This function frees a real mode call-back address that was allocated through the allocate real mode call-back address service.

To Call

     AX = 0304h
     CX:DX = Real mode call-back address to free

Returns

     If function was successful:
     Carry flag is clear.

     If function was not successful:
     Carry flag is set.

Programmer's Notes

• Real mode call-backs are a limited resource. Your code should free any break point that it is no longer using.