Flat Memory Instructions

126 AMDGPU instructions in this category - showing 100 per page, page 1 of 2 - click any row for encoding, pseudocode, and full documentation.

Mnemonic ⇅	Syntax	Format ⇅	Summary
cluster_load_async_to_lds_b128	cluster_load_async_to_lds_b128	FLAT	AMDGPU FLAT vector instruction operating on b128 data. (Format and name extracted from LLVM's AMDGPU backend source - semantics not yet curated.)
cluster_load_async_to_lds_b32	cluster_load_async_to_lds_b32	FLAT	AMDGPU FLAT vector instruction operating on b32 data. (Format and name extracted from LLVM's AMDGPU backend source - semantics not yet curated.)
cluster_load_async_to_lds_b64	cluster_load_async_to_lds_b64	FLAT	AMDGPU FLAT vector instruction operating on b64 data. (Format and name extracted from LLVM's AMDGPU backend source - semantics not yet curated.)
cluster_load_async_to_lds_b8	cluster_load_async_to_lds_b8	FLAT	AMDGPU FLAT vector instruction operating on b8 data. (Format and name extracted from LLVM's AMDGPU backend source - semantics not yet curated.)
cluster_load_b128	cluster_load_b128	FLAT	AMDGPU FLAT vector instruction operating on b128 data. (Format and name extracted from LLVM's AMDGPU backend source - semantics not yet curated.)
cluster_load_b32	cluster_load_b32	FLAT	AMDGPU FLAT vector instruction operating on b32 data. (Format and name extracted from LLVM's AMDGPU backend source - semantics not yet curated.)
cluster_load_b64	cluster_load_b64	FLAT	AMDGPU FLAT vector instruction operating on b64 data. (Format and name extracted from LLVM's AMDGPU backend source - semantics not yet curated.)
flat_atomic_add	flat_atomic_add	FLAT	Add two unsigned 32-bit integer values stored in the data register and a location in the flat aperture.
flat_atomic_add_f32	flat_atomic_add_f32	FLAT	Add a single-precision float value in the data register to a location in the flat aperture.
flat_atomic_add_f64	flat_atomic_add_f64	FLAT	Add a double-precision float value in the data register to a location in the flat aperture.
flat_atomic_add_u32	flat_atomic_add_u32	FLAT	Add two unsigned 32-bit integer values stored in the data register and a location in the flat aperture.
flat_atomic_add_u64	flat_atomic_add_u64	FLAT	Add two unsigned 64-bit integer values stored in the data register and a location in the flat aperture.
flat_atomic_add_x2	flat_atomic_add_x2	FLAT	Add two unsigned 64-bit integer values stored in the data register and a location in the flat aperture.
flat_atomic_and	flat_atomic_and	FLAT	Calculate bitwise AND given two unsigned 32-bit integer values stored in the data register and a location in the flat aperture.
flat_atomic_and_b32	flat_atomic_and_b32	FLAT	Calculate bitwise AND given two unsigned 32-bit integer values stored in the data register and a location in the flat aperture.
flat_atomic_and_b64	flat_atomic_and_b64	FLAT	Calculate bitwise AND given two unsigned 64-bit integer values stored in the data register and a location in the flat aperture.
flat_atomic_and_x2	flat_atomic_and_x2	FLAT	Calculate bitwise AND given two unsigned 64-bit integer values stored in the data register and a location in the flat aperture.
flat_atomic_cmpswap	flat_atomic_cmpswap	FLAT	Compare two unsigned 32-bit integer values stored in the data comparison register and a location in the flat aperture.
flat_atomic_cmpswap_b32	flat_atomic_cmpswap_b32	FLAT	Compare two unsigned 32-bit integer values stored in the data comparison register and a location in the flat aperture.
flat_atomic_cmpswap_b64	flat_atomic_cmpswap_b64	FLAT	Compare two unsigned 64-bit integer values stored in the data comparison register and a location in the flat aperture.
flat_atomic_cmpswap_f32	flat_atomic_cmpswap_f32	FLAT	Compare two single-precision float values stored in the data comparison register and a location in the flat aperture.
flat_atomic_cmpswap_x2	flat_atomic_cmpswap_x2	FLAT	Compare two unsigned 64-bit integer values stored in the data comparison register and a location in the flat aperture.
flat_atomic_cond_sub_u32	flat_atomic_cond_sub_u32	FLAT	Subtract an unsigned 32-bit integer value in the data register from a location in the flat aperture only if the memory value is greater than or equal…
flat_atomic_csub_u32	flat_atomic_csub_u32	FLAT	AMDGPU FLAT vector instruction operating on u32 data. (Format and name extracted from LLVM's AMDGPU backend source - semantics not yet curated.)
flat_atomic_dec	flat_atomic_dec	FLAT	Decrement an unsigned 32-bit integer value from a location in the flat aperture with wraparound to a value in the data register if the decrement…
flat_atomic_dec_u32	flat_atomic_dec_u32	FLAT	Decrement an unsigned 32-bit integer value from a location in the flat aperture with wraparound to a value in the data register if the decrement…
flat_atomic_dec_u64	flat_atomic_dec_u64	FLAT	Decrement an unsigned 64-bit integer value from a location in the flat aperture with wraparound to a value in the data register if the decrement…
flat_atomic_dec_x2	flat_atomic_dec_x2	FLAT	Decrement an unsigned 64-bit integer value from a location in the flat aperture with wraparound to a value in the data register if the decrement…
flat_atomic_fcmpswap	flat_atomic_fcmpswap	FLAT	Compare two single-precision float values stored in the data comparison register and a location in the flat aperture.
flat_atomic_fcmpswap_x2	flat_atomic_fcmpswap_x2	FLAT	Compare two double-precision float values stored in the data comparison register and a location in the flat aperture.
flat_atomic_fmax	flat_atomic_fmax	FLAT	Select the maximum of two single-precision float inputs, given two values stored in the data register and a location in the flat aperture.
flat_atomic_fmax_x2	flat_atomic_fmax_x2	FLAT	Select the maximum of two double-precision float inputs, given two values stored in the data register and a location in the flat aperture.
flat_atomic_fmin	flat_atomic_fmin	FLAT	Select the minimum of two single-precision float inputs, given two values stored in the data register and a location in the flat aperture.
flat_atomic_fmin_x2	flat_atomic_fmin_x2	FLAT	Select the minimum of two double-precision float inputs, given two values stored in the data register and a location in the flat aperture.
flat_atomic_inc	flat_atomic_inc	FLAT	Increment an unsigned 32-bit integer value from a location in the flat aperture with wraparound to 0 if the value exceeds a value in the data…
flat_atomic_inc_u32	flat_atomic_inc_u32	FLAT	Increment an unsigned 32-bit integer value from a location in the flat aperture with wraparound to 0 if the value exceeds a value in the data…
flat_atomic_inc_u64	flat_atomic_inc_u64	FLAT	Increment an unsigned 64-bit integer value from a location in the flat aperture with wraparound to 0 if the value exceeds a value in the data…
flat_atomic_inc_x2	flat_atomic_inc_x2	FLAT	Increment an unsigned 64-bit integer value from a location in the flat aperture with wraparound to 0 if the value exceeds a value in the data…
flat_atomic_max_f32	flat_atomic_max_f32	FLAT	Select the maximum of two single-precision float inputs, given two values stored in the data register and a location in the flat aperture.
flat_atomic_max_f64	flat_atomic_max_f64	FLAT	Select the maximum of two double-precision float inputs, given two values stored in the data register and a location in the flat aperture.
flat_atomic_max_i32	flat_atomic_max_i32	FLAT	Select the maximum of two signed 32-bit integer inputs, given two values stored in the data register and a location in the flat aperture.
flat_atomic_max_i64	flat_atomic_max_i64	FLAT	Select the maximum of two signed 64-bit integer inputs, given two values stored in the data register and a location in the flat aperture.
flat_atomic_max_u32	flat_atomic_max_u32	FLAT	Select the maximum of two unsigned 32-bit integer inputs, given two values stored in the data register and a location in the flat aperture.
flat_atomic_max_u64	flat_atomic_max_u64	FLAT	Select the maximum of two unsigned 64-bit integer inputs, given two values stored in the data register and a location in the flat aperture.
flat_atomic_min_f32	flat_atomic_min_f32	FLAT	Select the minimum of two single-precision float inputs, given two values stored in the data register and a location in the flat aperture.
flat_atomic_min_f64	flat_atomic_min_f64	FLAT	Select the minimum of two double-precision float inputs, given two values stored in the data register and a location in the flat aperture.
flat_atomic_min_i32	flat_atomic_min_i32	FLAT	Select the minimum of two signed 32-bit integer inputs, given two values stored in the data register and a location in the flat aperture.
flat_atomic_min_i64	flat_atomic_min_i64	FLAT	Select the minimum of two signed 64-bit integer inputs, given two values stored in the data register and a location in the flat aperture.
flat_atomic_min_u32	flat_atomic_min_u32	FLAT	Select the minimum of two unsigned 32-bit integer inputs, given two values stored in the data register and a location in the flat aperture.
flat_atomic_min_u64	flat_atomic_min_u64	FLAT	Select the minimum of two unsigned 64-bit integer inputs, given two values stored in the data register and a location in the flat aperture.
flat_atomic_or	flat_atomic_or	FLAT	Calculate bitwise OR given two unsigned 32-bit integer values stored in the data register and a location in the flat aperture.
flat_atomic_or_b32	flat_atomic_or_b32	FLAT	Calculate bitwise OR given two unsigned 32-bit integer values stored in the data register and a location in the flat aperture.
flat_atomic_or_b64	flat_atomic_or_b64	FLAT	Calculate bitwise OR given two unsigned 64-bit integer values stored in the data register and a location in the flat aperture.
flat_atomic_or_x2	flat_atomic_or_x2	FLAT	Calculate bitwise OR given two unsigned 64-bit integer values stored in the data register and a location in the flat aperture.
flat_atomic_pk_add_bf16	flat_atomic_pk_add_bf16	FLAT	Add a packed 2-component BF16 float value in the data register to a location in the flat aperture.
flat_atomic_pk_add_f16	flat_atomic_pk_add_f16	FLAT	Add a packed 2-component half-precision float value in the data register to a location in the flat aperture.
flat_atomic_smax	flat_atomic_smax	FLAT	Select the maximum of two signed 32-bit integer inputs, given two values stored in the data register and a location in the flat aperture.
flat_atomic_smax_x2	flat_atomic_smax_x2	FLAT	Select the maximum of two signed 64-bit integer inputs, given two values stored in the data register and a location in the flat aperture.
flat_atomic_smin	flat_atomic_smin	FLAT	Select the minimum of two signed 32-bit integer inputs, given two values stored in the data register and a location in the flat aperture.
flat_atomic_smin_x2	flat_atomic_smin_x2	FLAT	Select the minimum of two signed 64-bit integer inputs, given two values stored in the data register and a location in the flat aperture.
flat_atomic_sub	flat_atomic_sub	FLAT	Subtract an unsigned 32-bit integer value stored in the data register from a value stored in a location in the flat aperture.
flat_atomic_sub_u32	flat_atomic_sub_u32	FLAT	Subtract an unsigned 32-bit integer value stored in the data register from a value stored in a location in the flat aperture.
flat_atomic_sub_u64	flat_atomic_sub_u64	FLAT	Subtract an unsigned 64-bit integer value stored in the data register from a value stored in a location in the flat aperture.
flat_atomic_sub_x2	flat_atomic_sub_x2	FLAT	Subtract an unsigned 64-bit integer value stored in the data register from a value stored in a location in the flat aperture.
flat_atomic_swap	flat_atomic_swap	FLAT	Swap an unsigned 32-bit integer value in the data register with a location in the flat aperture.
flat_atomic_swap_b32	flat_atomic_swap_b32	FLAT	Swap an unsigned 32-bit integer value in the data register with a location in the flat aperture.
flat_atomic_swap_b64	flat_atomic_swap_b64	FLAT	Swap an unsigned 64-bit integer value in the data register with a location in the flat aperture.
flat_atomic_swap_x2	flat_atomic_swap_x2	FLAT	Swap an unsigned 64-bit integer value in the data register with a location in the flat aperture.
flat_atomic_umax	flat_atomic_umax	FLAT	Select the maximum of two unsigned 32-bit integer inputs, given two values stored in the data register and a location in the flat aperture.
flat_atomic_umax_x2	flat_atomic_umax_x2	FLAT	Select the maximum of two unsigned 64-bit integer inputs, given two values stored in the data register and a location in the flat aperture.
flat_atomic_umin	flat_atomic_umin	FLAT	Select the minimum of two unsigned 32-bit integer inputs, given two values stored in the data register and a location in the flat aperture.
flat_atomic_umin_x2	flat_atomic_umin_x2	FLAT	Select the minimum of two unsigned 64-bit integer inputs, given two values stored in the data register and a location in the flat aperture.
flat_atomic_xor	flat_atomic_xor	FLAT	Calculate bitwise XOR given two unsigned 32-bit integer values stored in the data register and a location in the flat aperture.
flat_atomic_xor_b32	flat_atomic_xor_b32	FLAT	Calculate bitwise XOR given two unsigned 32-bit integer values stored in the data register and a location in the flat aperture.
flat_atomic_xor_b64	flat_atomic_xor_b64	FLAT	Calculate bitwise XOR given two unsigned 64-bit integer values stored in the data register and a location in the flat aperture.
flat_atomic_xor_x2	flat_atomic_xor_x2	FLAT	Calculate bitwise XOR given two unsigned 64-bit integer values stored in the data register and a location in the flat aperture.
flat_load_b128	flat_load_b128	FLAT	Load 128 bits of data from the flat aperture into a vector register.
flat_load_b32	flat_load_b32	FLAT	Load 32 bits of data from the flat aperture into a vector register.
flat_load_b64	flat_load_b64	FLAT	Load 64 bits of data from the flat aperture into a vector register.
flat_load_b96	flat_load_b96	FLAT	Load 96 bits of data from the flat aperture into a vector register.
flat_load_d16_b16	flat_load_d16_b16	FLAT	Load 16 bits of unsigned data from the flat aperture and store the result into the low 16 bits of a 32-bit vector register.
flat_load_d16_hi_b16	flat_load_d16_hi_b16	FLAT	Load 16 bits of unsigned data from the flat aperture and store the result into the high 16 bits of a 32-bit vector register.
flat_load_d16_hi_i8	flat_load_d16_hi_i8	FLAT	Load 8 bits of signed data from the flat aperture, sign extend to 16 bits and store the result into the high 16 bits of a 32-bit vector register.
flat_load_d16_hi_u8	flat_load_d16_hi_u8	FLAT	Load 8 bits of unsigned data from the flat aperture, zero extend to 16 bits and store the result into the high 16 bits of a 32-bit vector register.
flat_load_d16_i8	flat_load_d16_i8	FLAT	Load 8 bits of signed data from the flat aperture, sign extend to 16 bits and store the result into the low 16 bits of a 32-bit vector register.
flat_load_d16_u8	flat_load_d16_u8	FLAT	Load 8 bits of unsigned data from the flat aperture, zero extend to 16 bits and store the result into the low 16 bits of a 32-bit vector register.
flat_load_dword	flat_load_dword VDST, VADDR	FLAT	Load one 32-bit dword per lane through the flat (generic) address space, resolved to global/scratch/LDS at runtime.
flat_load_dwordx2	flat_load_dwordx2	FLAT	Load 64 bits of data from the flat aperture into a vector register.
flat_load_dwordx3	flat_load_dwordx3	FLAT	Load 96 bits of data from the flat aperture into a vector register.
flat_load_dwordx4	flat_load_dwordx4	FLAT	Load 128 bits of data from the flat aperture into a vector register.
flat_load_i16	flat_load_i16	FLAT	Load 16 bits of signed data from the flat aperture, sign extend to 32 bits and store the result into a vector register.
flat_load_i8	flat_load_i8	FLAT	Load 8 bits of signed data from the flat aperture, sign extend to 32 bits and store the result into a vector register.
flat_load_monitor_b128	flat_load_monitor_b128	FLAT	AMDGPU FLAT vector instruction operating on b128 data. (Format and name extracted from LLVM's AMDGPU backend source - semantics not yet curated.)
flat_load_monitor_b32	flat_load_monitor_b32	FLAT	AMDGPU FLAT vector instruction operating on b32 data. (Format and name extracted from LLVM's AMDGPU backend source - semantics not yet curated.)
flat_load_monitor_b64	flat_load_monitor_b64	FLAT	AMDGPU FLAT vector instruction operating on b64 data. (Format and name extracted from LLVM's AMDGPU backend source - semantics not yet curated.)
flat_load_sbyte	flat_load_sbyte	FLAT	Load 8 bits of signed data from the flat aperture, sign extend to 32 bits and store the result into a vector register.
flat_load_sbyte_d16	flat_load_sbyte_d16	FLAT	Load 8 bits of signed data from the flat aperture, sign extend to 16 bits and store the result into the low 16 bits of a 32-bit vector register.
flat_load_sbyte_d16_hi	flat_load_sbyte_d16_hi	FLAT	Load 8 bits of signed data from the flat aperture, sign extend to 16 bits and store the result into the high 16 bits of a 32-bit vector register.
flat_load_short_d16	flat_load_short_d16	FLAT	Load 16 bits of unsigned data from the flat aperture and store the result into the low 16 bits of a 32-bit vector register.
flat_load_short_d16_hi	flat_load_short_d16_hi	FLAT	Load 16 bits of unsigned data from the flat aperture and store the result into the high 16 bits of a 32-bit vector register.