lifvol_t Struct Reference

Disk Layout. More...

#include <lifutils.h>

Data Fields
uint16_t	LIFid
uint8_t	Label [6+1]
uint32_t	DirStartSector
uint16_t	System3000LIFid
uint16_t	zero1
uint32_t	DirSectors
uint16_t	LIFVersion
uint16_t	zero2
uint32_t	tracks_per_side
uint32_t	sides
uint32_t	sectors_per_track
uint8_t	date [6]

Detailed Description

Disk Layout.

See also

https://groups.io/g/hpseries80/wiki/HP-85-Program-Control-Block-(BASIC-header),-Tape-directory-layout,-Disk-directory-layout

DISK LAYOUT The HP-85 disks used the LIF (Logical Interchange Format) disk layout. The first 2 sectors on the disk (cylinder 0, head 0, sector 0-1) contained the VOLUME sectors. The important things in the VOLUME SECTORS were thus:

BYTES DESCRIPTION

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0-1 LIF identifier, must be 0x8000 MSB first 2-7 6-character volume LABEL 8-11 directory start block always 0x00000002 MSB first 12-13 LIF identifer for System 3000 machines always 0x1000 MSB first 14-15 always 0x0000 MSB first 16-19 # of sectors in DIRECTORY MSB first 20-21 LIF version number always 0x0001 MSB first 22-23 always 0x0000 MSB first 24-27 number of tracks per surface MSB first 28-31 number of surfaces MSB first 32-35 number of sectors per track MSB first 36-41 time volume was initialized in BCD (YY,MM,DD,HH,mm,SS) LIF formating structures

See also

format.c

LIF disk label record

Definition at line 58 of file lifutils.h.

Field Documentation

date

uint8_t lifvol_t::date[6]

Definition at line 71 of file lifutils.h.

Referenced by lif_create_volume(), lif_dir(), lif_dump_vol(), lif_str2vol(), lif_vol2str(), and td0_save_lif_sector().

DirSectors

uint32_t lifvol_t::DirSectors

Definition at line 65 of file lifutils.h.

Referenced by lif_check_volume(), lif_checkdirindex(), lif_create_volume(), lif_dir(), lif_dump_vol(), lif_open_volume(), lif_str2vol(), lif_vol2str(), and td0_save_lif_sector().

DirStartSector

uint32_t lifvol_t::DirStartSector

Definition at line 62 of file lifutils.h.

Referenced by lif_check_volume(), lif_create_volume(), lif_dir(), lif_dump_vol(), lif_open_volume(), lif_readdirindex(), lif_str2vol(), lif_vol2str(), lif_writedirindex(), and td0_save_lif_sector().

Label

uint8_t lifvol_t::Label[6+1]

Definition at line 61 of file lifutils.h.

Referenced by lif_check_volume(), lif_create_volume(), lif_dir(), lif_dump_vol(), lif_rename_volume(), lif_str2vol(), lif_vol2str(), and td0_save_lif_sector().

LIFid

uint16_t lifvol_t::LIFid

Definition at line 60 of file lifutils.h.

Referenced by lif_create_volume(), lif_dump_vol(), lif_str2vol(), and lif_vol2str().

LIFVersion

uint16_t lifvol_t::LIFVersion

Definition at line 66 of file lifutils.h.

Referenced by lif_check_volume(), lif_dump_vol(), lif_str2vol(), and lif_vol2str().

sectors_per_track

uint32_t lifvol_t::sectors_per_track

Definition at line 70 of file lifutils.h.

Referenced by lif_create_volume(), lif_str2vol(), and lif_vol2str().

sides

uint32_t lifvol_t::sides

Definition at line 69 of file lifutils.h.

Referenced by lif_create_volume(), lif_str2vol(), and lif_vol2str().

System3000LIFid

uint16_t lifvol_t::System3000LIFid

Definition at line 63 of file lifutils.h.

Referenced by lif_check_volume(), lif_create_volume(), lif_dump_vol(), lif_str2vol(), and lif_vol2str().

tracks_per_side

uint32_t lifvol_t::tracks_per_side

Definition at line 68 of file lifutils.h.

Referenced by lif_create_volume(), lif_str2vol(), and lif_vol2str().

zero1

uint16_t lifvol_t::zero1

Definition at line 64 of file lifutils.h.

Referenced by lif_check_volume(), and lif_str2vol().

zero2

uint16_t lifvol_t::zero2

Definition at line 67 of file lifutils.h.

Referenced by lif_check_volume(), and lif_str2vol().

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The documentation for this struct was generated from the following file:

• lif/lifutils.h