MEMORY_DISK_ROOT_SIZE
#if !defined(MEMORY_DISK_ROOT_SIZE) && NFDC > 0
#ifdef MEMORY_DISK_ROOT_SIZE
#define ROOTBYTES (MEMORY_DISK_ROOT_SIZE << DEV_BSHIFT)
#ifdef MEMORY_DISK_ROOT_SIZE
#if defined(MEMORY_DISK_HOOKS) && !defined(MEMORY_DISK_ROOT_SIZE)
#if defined(MEMORY_DISK_HOOKS) && !defined(MEMORY_DISK_ROOT_SIZE)
#define MD_ROOT_SIZE (MEMORY_DISK_ROOT_SIZE * DEV_BSIZE)
#define MD_ROOT_SIZE (MEMORY_DISK_ROOT_SIZE * DEV_BSIZE)
#ifdef MEMORY_DISK_ROOT_SIZE
#ifndef MEMORY_DISK_ROOT_SIZE
#define ROOTBYTES (MEMORY_DISK_ROOT_SIZE << DEV_BSHIFT)