Free LDT Descriptor
Frees an LDT descriptor.
AX = 0001H
BX = selector for the descriptor to free
if function successful
Carry flag = clear
if function unsuccessful
Carry flag = set
AX = error code
- Each descriptor allocated with Int 31H
Function 0000H must be freed individually with this function, even
if it was previously allocated as part of a contiguous array of
- Under DPMI 1.0 hosts, any segment registers which contain
the selector being freed are zeroed by this function.
- Refer to the rules for descriptor usage in Appendix D.