/* * This is set up by the setup-routine at boot-time */#define PARAM			((unsigned char *)empty_zero_page) #define MOUNT_ROOT_RDONLY	(*(unsigned long *) (PARAM+0x000))#define RAMDISK_FLAGS		(*(unsigned long *) (PARAM+0x004))#define ORIG_ROOT_DEV		(*(unsigned long *) (PARAM+0x008))#define LOADER_TYPE		(*(unsigned long *) (PARAM+0x00c))#define INITRD_START		(*(unsigned long *) (PARAM+0x010))#define INITRD_SIZE		(*(unsigned long *) (PARAM+0x014)) #define M32R_CPUCLK		(*(unsigned long *) (PARAM+0x018))#define M32R_BUSCLK		(*(unsigned long *) (PARAM+0x01c))#define M32R_TIMER_DIVIDE	(*(unsigned long *) (PARAM+0x020)) #define COMMAND_LINE		((char *) (PARAM+0x100)) #define SCREEN_INFO		(*(struct screen_info *) (PARAM+0x200)) #define COMMAND_LINE_SIZE	(512) #define RAMDISK_IMAGE_START_MASK	(0x07FF)#define RAMDISK_PROMPT_FLAG		(0x8000)#define RAMDISK_LOAD_FLAG		(0x4000) extern unsigned long memory_start;extern unsigned long memory_end;