Get Segment Base Address
Returns the 32-bit linear base address from the LDT
descriptor for the specified segment.
AX = 0006H
BX = selector
if function successful
Carry flag = clear
CX:DX = 32-bit linear base address of segment
if function unsuccessful
Carry flag = set
AX = error code
- Client programs must use the LSL instruction to query the
limit for a descriptor. Note that on 80386 machines, the
client must use the 32-bit form of LSL if the segment
size is greater than 64 KB.
- Refer to the rules for descriptor usage in Appendix D.