writemask

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English

Etymology

Compound of write +‎ mask.

Noun

writemask (plural writemasks)

  1. (programming) A bitmask which controls which bits are written to a memory location during some operation.
    • 2025 March, Intel 64 and IA-32 Architectures Software Developer's Manual, volume 1, page 15-9:
      A destination element is not updated with the result of the operation if the corresponding writemask bit is not set. Instead, the destination element value must be preserved (merging-masking) or it must be zeroed out (zeroing-masking).