leaving a small chunks of memory from contiguous instruction memory

["Sivaprasad.pv" <sivaprasad.pv@xxxxxxxxxxxxxxxxxx>]

Hi All,

I want to know that whether it can be possible to leave very small 
chunks of physical Instruction memory from contiguous physical 
instruction memory using linker script or by some other means.
for example:
Contiguous  instruction memory of 64KB (range 0x00000 to 0x10000)
I want to leave exactly 20 byte chunk of memory at 0x2000 location (so 
that no instruction gets those particular locations).

Thanks
P.V.Siva Prasad