ARM Registers

[Nicolas Moreau]

Hi

I am running GDB built for ARM. When I do a "i r" I get all the normal regsiters and 
also:
$dccr,$dcdr,$w0av,$w0am,$w0dv,$w0dm,$w0cv,$w0cm,$w1av,$w1am,$w1dv, 
$w1dm,$w1cv,$w1cm

Can some one explain what these registers are ?

Thanks

Nicolas