An optional 32-bit flat scratch offset. Must be specified as :ref:`off<amdgpu_synid_off>` if not used.
Either this operand or :ref:`vaddr<amdgpu_synid10_vaddr_flat_scratch>` must be set to :ref:`off<amdgpu_synid_off>`.
Size: 1 dword.
Operands: :ref:`s<amdgpu_synid_s>`, :ref:`vcc<amdgpu_synid_vcc>`, :ref:`ttmp<amdgpu_synid_ttmp>`, :ref:`null<amdgpu_synid_null>`, :ref:`off<amdgpu_synid_off>`