wiggler with gdb-4.81

[Alagu Sankar]

I am using gdb 4.18 with wiggler for mpc8xx on a
win nt hosted system. I
am using cygwin tools and cross compiler for
powerpc-eabi target.

I am able to connect to the target but unable to
modify the registers.
When i try to set the processor for 860 my info
registers command fails as
following

"read_bdm_registers : sr0    Invalid CPU register
access attempt failed"

I see people taking about 'ocd reg' command for
modifying the special
purpose. But this is not available in gdb 4.18.
Is there a patch for it
somewhere?

Regards,

Alagu