SHADOW_REG_BLOCK_OFFSET
SHADOW_REG_BLOCK_OFFSET, SHADOW_REG_BLOCK_SIZE, &wdr->cmd_baseioh);
SHADOW_REG_BLOCK_OFFSET + (reg))
SHADOW_REG_BLOCK_OFFSET + (reg))
SHADOW_REG_BLOCK_OFFSET + (reg), (val))
SHADOW_REG_BLOCK_OFFSET + (reg), (val))