Can this be happening?

[Mohammed, Moqtadir]

Hi all,

I was trying to look at a core dump of a program, and gdb displays the following result for
#info registers

eax            0xa0     160
ecx            0x2      2
edx            0xa      10
ebx            0xa7e3de9c       -1478238564
esp            0xa6babddc       0xa6babddc
ebp            0xa6babe00       0xa6babe00
esi            0xa7ef9d9a       -1477468774
edi            0x838f44c        137950284
eip            0xa7d85cec       0xa7d85cec <mempcpy+28>
eflags         0x50203  [ CF IF RF AC ]
cs             0x73     115
ss             0x7b     123
ds             0x7b     123
es             0xb010007b       -1341128581
fs             0x0      0
gs             0x33     51

Platform: IA32. (elf)

My question is, how is the register 'es' being reported as a 32 bit value.
I may be completely naive asking this question, but I have been trying to google for anything 
related to it, but haven't found an answer. Is 'es' not supposed to be only 16bit.

TIA,

Moqtadir