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(SYSLIB) Programming Reference Manual - Public Support Login ...

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ACTUAL_ELEMENT_CYCLE<br />

PLUS Attribute: 6-bit integer<br />

SAR$–Symbolic Access Routines<br />

The absolute cycle number of the SDF element. This field is defined only if reading<br />

from or writing to an SDF element. If reading from an SDF element and if the actual<br />

element cycle is not known, set this field to 0‘77’ to read all nondeleted element<br />

cycles.<br />

HIGHEST_SECTOR_ADDRESS<br />

PLUS Attribute: 24-bit integer<br />

The highest mass storage sector address assigned to the SDF file used for input or<br />

output. This field is not currently used.<br />

NEXT_READ_SECTOR_ADDRESS<br />

PLUS Attribute: 24-bit integer<br />

The mass storage sector address of the SDF input file to begin reading at. This field<br />

is not used for symbiont files.<br />

WORD_OFFSET_INTO_READ_SECTOR<br />

PLUS Attribute: 6-bit integer<br />

The word offset into the mass storage sector address of the SDF input file to begin<br />

reading at. This field is not used for symbiont files.<br />

NEXT_READ_LOCATION<br />

PLUS Attribute: word machine integer<br />

A one-word combination of NEXT_READ_SECTOR_ADDRESS and<br />

WORD_OFFSET_INTO_READ_SECTOR contained in bits 12 to 35 and in bits 0 to 5,<br />

respectively. (Bit 0 is the leftmost bit of the word.)<br />

NEXT_WRITE_SECTOR_ADDRESS<br />

PLUS Attribute: 24-bit integer<br />

The mass storage sector address of the SDF output file to begin writing at. This field<br />

is not used for symbiont files.<br />

WORD_OFFSET_INTO_WRITE_SECTOR<br />

PLUS Attribute: 6-bit integer<br />

The word offset into the mass storage sector address of the SDF output file to begin<br />

writing at. This field is not used for symbiont files.<br />

7833 1733–004 16–5

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