TDosEnvec

type TDosEnvec = packed record

  de_TableSize: LongWord;

Size of Environment vector

  de_SizeBlock: LongWord;

in longwords: standard value is 128

  de_SecOrg: LongWord;

not used; must be 0

  de_Surfaces: LongWord;

# of heads (surfaces). drive specific

  de_SectorPerBlock: LongWord;

not used; must be 1

  de_BlocksPerTrack: LongWord;

blocks per track. drive specific

  de_Reserved: LongWord;

DOS reserved blocks at start of partition.

  de_PreAlloc: LongWord;

DOS reserved blocks at end of partition

  de_Interleave: LongWord;

usually 0

  de_LowCyl: LongWord;

starting cylinder. typically 0

  de_HighCyl: LongWord;

max cylinder. drive specific

  de_NumBuffers: LongWord;

Initial # DOS of buffers.

  de_BufMemType: LongWord;

Type of mem to allocate for buffers

  de_MaxTransfer: LongWord;

Max number of bytes to transfer at a time

  de_Mask: LongWord;

Address Mask to block out certain memory

  de_BootPri: LongInt;

Boot priority for autoboot

  de_DosType: LongWord;

ASCII (HEX) string showing filesystem type; $444F5300 OFS, $444F5301 FFS

  de_Baud: LongWord;

Baud rate for serial handler

  de_Control: LongWord;

Control SmallInt for handler/filesystem

  de_BootBlocks: LongWord;

Number of blocks containing boot code

end;