A/UX® Programmer's Reference Sections

dpme(4) dpme(4)
NAME
dpme - format of disk partition map entries
SYNOPSIS
#include
DESCRIPTION
Starting at physical block 1 (offset 512 bytes) of each disk resides
a disk partition map. This map describes the layout of the partitions
for that disk. The disk partition map consists of one or more
disk partition map entries. Each entry corresponds to at most one
disk partition. The format of a disk partition map entry is:
typedef struct
{
u16 dpme_signature;
u16 dpme_reserved_1;
u32 dpme_map_entries;
u32 dpme_pblock_start;
u32 dpme_pblocks;
DPIDENT dpme_dpident;
u32 dpme_lblock_start;
u32 dpme_lblocks;
u32 dpme_reserved_2:
u32 dpme os specific_1:
u32 dpme_os_specific_2:
u32 dpme_os_pic_code:
u32 dpme_writable: 1;
u32 dpme_readable: 1;
u32 dpme_bootable: 1;
u32
u32
u32
u32
u32
u8
u8
u8
u8
u32
char
u32
u32
February, 1990
RevisionC
dpme_in_use: 1;
dpme_allocated: 1;
dpme_valid: 1;
dpme_boot_block;
dpme_boot_bytes;
*dpme_load_addr;
*dpme_load_addr_2;
* dpme_goto_addr;
*dpme_goto_addr_2;
dpme _checksum;
dpme_process_id[16];
dpme_boot_args[32];
dpme_reserved_3[62];
23;
1;
1;
1;
/*
/*
/*
/*
/*
/*
/* Bit 9 through
/* Bit 8 */
/* Bit 7 */
/* Bit 6 */
Bit 5 */
Bit 4 */
Bit 3 */
Bit 2 */
Bit 1 */
Bit a */
1
31 */