Scratch Memory Instructions

29 AMDGPU instructions in this category - click any row for encoding, pseudocode, and full documentation.

Mnemonic ⇅	Syntax	Format ⇅	Summary
scratch_load_block	scratch_load_block	SCRATCH	Load a block of data from the scratch aperture.
scratch_load_dword	scratch_load_dword	SCRATCH	Load 32 bits of data from the scratch aperture into a vector register.
scratch_load_dwordx2	scratch_load_dwordx2	SCRATCH	Load 64 bits of data from the scratch aperture into a vector register.
scratch_load_dwordx3	scratch_load_dwordx3	SCRATCH	Load 96 bits of data from the scratch aperture into a vector register.
scratch_load_dwordx4	scratch_load_dwordx4	SCRATCH	Load 128 bits of data from the scratch aperture into a vector register.
scratch_load_lds_dword	scratch_load_lds_dword	SCRATCH	Load 32 bits of untyped data from the scratch aperture and store the result into a data share.
scratch_load_lds_sbyte	scratch_load_lds_sbyte	SCRATCH	Load 8 bits of untyped data from the scratch aperture, sign extend to 32 bits and store the result into a data share.
scratch_load_lds_sshort	scratch_load_lds_sshort	SCRATCH	Load 16 bits of untyped data from the scratch aperture, sign extend to 32 bits and store the result into a data share.
scratch_load_lds_ubyte	scratch_load_lds_ubyte	SCRATCH	Load 8 bits of untyped data from the scratch aperture, zero extend to 32 bits and store the result into a data share.
scratch_load_lds_ushort	scratch_load_lds_ushort	SCRATCH	Load 16 bits of untyped data from the scratch aperture, zero extend to 32 bits and store the result into a data share.
scratch_load_sbyte	scratch_load_sbyte	SCRATCH	Load 8 bits of signed data from the scratch aperture, sign extend to 32 bits and store the result into a vector register.
scratch_load_sbyte_d16	scratch_load_sbyte_d16	SCRATCH	Load 8 bits of signed data from the scratch aperture, sign extend to 16 bits and store the result into the low 16 bits of a 32-bit vector register.
scratch_load_sbyte_d16_hi	scratch_load_sbyte_d16_hi	SCRATCH	Load 8 bits of signed data from the scratch aperture, sign extend to 16 bits and store the result into the high 16 bits of a 32-bit vector register.
scratch_load_short_d16	scratch_load_short_d16	SCRATCH	Load 16 bits of unsigned data from the scratch aperture and store the result into the low 16 bits of a 32-bit vector register.
scratch_load_short_d16_hi	scratch_load_short_d16_hi	SCRATCH	Load 16 bits of unsigned data from the scratch aperture and store the result into the high 16 bits of a 32-bit vector register.
scratch_load_sshort	scratch_load_sshort	SCRATCH	Load 16 bits of signed data from the scratch aperture, sign extend to 32 bits and store the result into a vector register.
scratch_load_ubyte	scratch_load_ubyte	SCRATCH	Load 8 bits of unsigned data from the scratch aperture, zero extend to 32 bits and store the result into a vector register.
scratch_load_ubyte_d16	scratch_load_ubyte_d16	SCRATCH	Load 8 bits of unsigned data from the scratch aperture, zero extend to 16 bits and store the result into the low 16 bits of a 32-bit vector register.
scratch_load_ubyte_d16_hi	scratch_load_ubyte_d16_hi	SCRATCH	Load 8 bits of unsigned data from the scratch aperture, zero extend to 16 bits and store the result into the high 16 bits of a 32-bit vector register.
scratch_load_ushort	scratch_load_ushort	SCRATCH	Load 16 bits of unsigned data from the scratch aperture, zero extend to 32 bits and store the result into a vector register.
scratch_store_block	scratch_store_block	SCRATCH	Store a block of data to the scratch aperture.
scratch_store_byte	scratch_store_byte	SCRATCH	Store 8 bits of data from a vector register into the scratch aperture.
scratch_store_byte_d16_hi	scratch_store_byte_d16_hi	SCRATCH	Store 8 bits of data from the high 16 bits of a 32-bit vector register into the scratch aperture.
scratch_store_dword	scratch_store_dword	SCRATCH	Store 32 bits of data from vector input registers into the scratch aperture.
scratch_store_dwordx2	scratch_store_dwordx2	SCRATCH	Store 64 bits of data from vector input registers into the scratch aperture.
scratch_store_dwordx3	scratch_store_dwordx3	SCRATCH	Store 96 bits of data from vector input registers into the scratch aperture.
scratch_store_dwordx4	scratch_store_dwordx4	SCRATCH	Store 128 bits of data from vector input registers into the scratch aperture.
scratch_store_short	scratch_store_short	SCRATCH	Store 16 bits of data from a vector register into the scratch aperture.
scratch_store_short_d16_hi	scratch_store_short_d16_hi	SCRATCH	Store 16 bits of data from the high 16 bits of a 32-bit vector register into the scratch aperture.