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llvm-mirror/docs/AMDGPU/gfx908_vaddr_flat_global.rst
Dmitry Preobrazhensky 50947152c2 [AMDGPU][MC][NFC][DOC] Updated AMD GPU assembler syntax description.
Summary of changes:
- added description of MTBUF instructions and format modifier;
- described limitations of f16 inline constants when used with integer operands;
- updated description of gfx9+ flat global addressing modes;
- v_accvgpr_write_b32 src0 corrections (gfx908);
- minor bugfixing and improvements.
2020-08-21 14:25:14 +03:00

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.. _amdgpu_synid908_vaddr_flat_global:
vaddr
===========================
A 64-bit flat global address or a 32-bit offset depending on addressing mode:
* Address = :ref:`vaddr<amdgpu_synid908_vaddr_flat_global>` + :ref:`offset13s<amdgpu_synid_flat_offset13s>`. :ref:`vaddr<amdgpu_synid908_vaddr_flat_global>` is a 64-bit address. This mode is indicated by :ref:`saddr<amdgpu_synid908_saddr_flat_global>` set to :ref:`off<amdgpu_synid_off>`.
* Address = :ref:`saddr<amdgpu_synid908_saddr_flat_global>` + :ref:`vaddr<amdgpu_synid908_vaddr_flat_global>` + :ref:`offset13s<amdgpu_synid_flat_offset13s>`. :ref:`vaddr<amdgpu_synid908_vaddr_flat_global>` is a 32-bit offset. This mode is used when :ref:`saddr<amdgpu_synid908_saddr_flat_global>` is not :ref:`off<amdgpu_synid_off>`.
*Size:* 1 or 2 dwords.
*Operands:* :ref:`v<amdgpu_synid_v>`