REG_MAPPABLE
bm->reg_size = REG_MAPPABLE;
{ 0xfebf0000, REG_MAPPABLE, 0xfec00000, FRAME_MAPPABLE }, /* Crazy Dots VME & II */
{ 0xfed00000, REG_MAPPABLE, 0xfec00000, FRAME_MAPPABLE }, /* Spektrum I & HC */
{ 0xfed80000, REG_MAPPABLE, 0xfec00000, FRAME_MAPPABLE } /* Spektrum TC */