xref: /llvm-project/llvm/docs/AMDGPU/gfx7_vsrc_ba3116.rst (revision cc426402bed6b576086357f36b21879bfe365939)
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8.. _amdgpu_synid_gfx7_vsrc_ba3116:
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10vsrc
11====
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13Data to copy to export buffers. This is an optional operand. Must be specified as :ref:`off<amdgpu_synid_off>` if not used.
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15The :ref:`compr<amdgpu_synid_compr>` modifier indicates the use of compressed (16-bit) data, thus decreasing the number of source operands from 4 to 2:
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17* src0 and src1 must specify the first register (or :ref:`off<amdgpu_synid_off>`).
18* src2 and src3 must specify the second register (or :ref:`off<amdgpu_synid_off>`).
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20An example:
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22.. parsed-literal::
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24  exp mrtz v3, v3, off, off compr
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26*Size:* 1 dword.
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28*Operands:* :ref:`v<amdgpu_synid_v>`, :ref:`off<amdgpu_synid_off>`
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