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| .. _amdgpu_synid_gfx1030_vdata_aa5a53: |
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| vdata |
| ===== |
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| Input data for an atomic instruction. |
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| Optionally, this operand may be used to store output data: |
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| * If :ref:`glc<amdgpu_synid_glc>` is specified, gets the memory value before the operation. |
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| *Size:* depends on :ref:`dmask<amdgpu_synid_dmask>`: |
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| * :ref:`dmask<amdgpu_synid_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. |
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| Note: the surface data format is indicated in the image resource constant, but not in the instruction. |
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| *Operands:* :ref:`v<amdgpu_synid_v>` |
