dg[a] [range]
The dg command displays the specified range of entries in the global descriptor table (GDT).
a
Displays all entries in the table, not just the valid ones. By default, only the valid GDT entries are displayed. If range specifies a local descriptor table (LDT) selector, the command displays the appropriate LDT entry.
range
Specifies the range of entries to be displayed. If you omit range, the entire table is displayed.
The command displays the selector, descriptor type, base address, limit, privilege, and other descriptor flags.