vdata

Input data for an atomic instruction.

Optionally may serve as an output data:

• If glc is specified, gets the memory value before the operation.

Size: depends on dmask:

• dmask may specify 1 data element for 32-bit-per-pixel surfaces or 2 data elements for 64-bit-per-pixel surfaces. Each data element occupies 1 dword.

  Note: the surface data format is indicated in the image resource constant but not in the instruction.

Operands: v