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Autodocs
 Resources:
 disk.resource
  AllocUnit
  FreeUnit
  GetUnit
  GetUnitID
  GiveUnit
  ReadUnitID
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Docs » Autodocs » disk.resource » AllocUnit

NAME

       AllocUnit - allocate a unit of the disk

SYNOPSIS

       Success = AllocUnit( unitNum ), DRResource
	D0     	             D0         A6
	BOOL AllocUnit(LONG);

FUNCTION

	This routine allocates one of the units of the disk.  It should
	be called before trying to use the disk (via GetUnit).
	In reality, it is perfectly fine to use GetUnit/GiveUnit if AllocUnit
	fails.  Do NOT call FreeUnit if AllocUnit did not succeed.  This
	has been the case for all revisions of disk.resource.

INPUTS

	unitNum -- a legal unit number (zero through three)

RESULT

	Success -- nonzero if successful.  zero on failure.
   EXCEPTIONS

SEE ALSO

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