OUTPORTQ Keyword

OUTPORTQ port, value

Writes a 64-bit quad-word to port.

Note

Very few devices support 64-bit port writes; consult hardware documentation before use.

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How to read it

• Writes eight bytes as a 64-bit value to the port.

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Examples

REM Example 64-bit port write
OUTPORTQ &1234, &0123456789ABCDEF

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Notes

• Rare in practice; most hardware uses MMIO or smaller port widths.

See also:
OUTPORT · OUTPORTW · OUTPORTD · INPORTQ