Type							Description
dec	hex	bin
		16	8	4	2	1
		S	?	E	W	A	Data segment
0	00	0	0	0	0	0	Data	Read-Only
1	01	0	0	0	0	1	Data	Read-Only		Accessed
2	02	0	0	0	1	0	Data	Read/Write
3	03	0	0	0	1	1	Data	Read/Write		Accessed
4	04	0	0	1	0	0	Data	Read-Only	Expand-down
5	05	0	0	1	0	1	Data	Read-Only	Expand-down	Accessed
6	06	0	0	1	1	0	Data	Read/Write	Expand-down
7	07	0	0	1	1	1	Data	Read/Write	Expand-down	Accessed
		S	?	C	R	A	Code segment
8	08	0	1	0	0	0	Code	Execute-Only
9	09	0	1	0	0	1	Code	Execute-Only		Accessed
10	0A	0	1	0	1	0	Code	Execute/Read
11	0B	0	1	0	1	1	Code	Execute/Read		Accessed
12	0C	0	1	1	0	0	Code	Execute-Only	Conforming
13	0D	0	1	1	0	1	Code	Execute-Only	Conforming	Accessed
14	0E	0	1	1	1	0	Code	Execute/Read	Conforming
15	0F	0	1	1	1	1	Code	Execute/Read	Conforming	Accessed
		S	¿				System Segment
							32-bit Mode		IA-32e Mode
16	10	1	0	0	0	0	Reserved		Reserved (extension of descriptor to 64 bits)
17	11	1	0	0	0	1	16-bit TSS	Available	Reserved
18	12	1	0	0	1	0	LDT
19	13	1	0	0	1	1	16-bit TSS	Busy	Reserved
20	14	1	0	1	0	0	16-bit Call Gate		Reserved
21	15	1	0	1	0	1	Task Gate		Reserved
22	16	1	0	1	1	0	16-bit Interrupt Gate		Reserved
23	17	1	0	1	1	1	16-bit Trap Gate		Reserved
24	18	1	1	0	0	0	Reserved		Reserved
25	19	1	1	0	0	1	32-bit TSS	Available	64-bit TSS	Available
26	1A	1	1	0	1	0	Reserved
27	1B	1	1	0	1	1	32-bit TSS	Busy	64-bit TSS	Busy
28	1C	1	1	1	0	0	32-bit Call Gate		64-bit Call Gate
29	1D	1	1	1	0	1	Reserved		Reserved
30	1E	1	1	1	1	0	32-bit Interrupt Gate		64-bit Interrupt Gate
31	1F	1	1	1	1	1	32-bit Trap Gate		64-bit Trap Gate