Module core::arch::riscv64

🔬This is a nightly-only experimental API. (riscv_ext_intrinsics #114544)

Available on RISC-V RV64 only.

Platform-specific intrinsics for the riscv64 platform.

See the module documentation for more details.

Functions

• add8Experimental
  Adds packed 8-bit signed numbers, discarding overflow bits
• add16Experimental
  Adds packed 16-bit signed numbers, discarding overflow bits
• aes64ds^⚠Experimentalzknd
  AES final round decryption instruction for RV64.
• aes64dsm^⚠Experimentalzknd
  AES middle round decryption instruction for RV64.
• aes64es^⚠Experimentalzkne
  AES final round encryption instruction for RV64.
• aes64esm^⚠Experimentalzkne
  AES middle round encryption instruction for RV64.
• aes64im^⚠Experimentalzkne and zknd
  This instruction accelerates the inverse MixColumns step of the AES Block Cipher, and is used to aid creation of the decryption KeySchedule.
• aes64ks1i^⚠Experimentalzkne and zknd
  This instruction implements part of the KeySchedule operation for the AES Block cipher involving the SBox operation.
• aes64ks2^⚠Experimentalzkne and zknd
  This instruction implements part of the KeySchedule operation for the AES Block cipher.
• clmul^⚠Experimentalzbc
  Carry-less multiply (low-part)
• clmulh^⚠Experimentalzbc
  Carry-less multiply (high-part)
• clmulr^⚠Experimentalzbc
  Carry-less multiply (reversed)
• clrs8Experimental
  Count the number of redundant sign bits of the packed 8-bit elements
• clrs16Experimental
  Count the number of redundant sign bits of the packed 16-bit elements
• clrs32Experimental
  Count the number of redundant sign bits of the packed 32-bit elements
• clz8Experimental
  Count the number of leading zero bits of the packed 8-bit elements
• clz16Experimental
  Count the number of leading zero bits of the packed 16-bit elements
• clz32Experimental
  Count the number of leading zero bits of the packed 32-bit elements
• cmpeq8Experimental
  Compare equality for packed 8-bit elements
• cmpeq16Experimental
  Compare equality for packed 16-bit elements
• cras16Experimental
  Cross adds and subtracts packed 16-bit signed numbers, discarding overflow bits
• crsa16Experimental
  Cross subtracts and adds packed 16-bit signed numbers, discarding overflow bits
• fence_i^⚠Experimental
  Generates the FENCE.I instruction
• frcsrExperimental
  Reads the floating-point control and status register fcsr
• frflagsExperimental
  Reads the floating-point accrued exception flags register fflags
• frrmExperimental
  Reads the floating-point rounding mode register frm
• fscsrExperimental
  Swaps the floating-point control and status register fcsr
• fsflagsExperimental
  Swaps the floating-point accrued exception flags register fflags
• fsrmExperimental
  Swaps the floating-point rounding mode register frm
• hfence_gvma^⚠Experimental
  Hypervisor memory management fence for guest physical address and virtual machine
• hfence_gvma_all^⚠Experimental
  Hypervisor memory management fence for all virtual machines and guest physical addresses
• hfence_gvma_gaddr^⚠Experimental
  Hypervisor memory management fence for guest physical address
• hfence_gvma_vmid^⚠Experimental
  Hypervisor memory management fence for given virtual machine
• hfence_vvma^⚠Experimental
  Hypervisor memory management fence for given guest virtual address and guest address space
• hfence_vvma_all^⚠Experimental
  Hypervisor memory management fence for all guest address spaces and guest virtual addresses
• hfence_vvma_asid^⚠Experimental
  Hypervisor memory management fence for given guest address space
• hfence_vvma_vaddr^⚠Experimental
  Hypervisor memory management fence for given guest virtual address
• hinval_gvma^⚠Experimental
  Invalidate hypervisor translation cache for guest physical address and virtual machine
• hinval_gvma_all^⚠Experimental
  Invalidate hypervisor translation cache for all virtual machines and guest physical addresses
• hinval_gvma_gaddr^⚠Experimental
  Invalidate hypervisor translation cache for guest physical address
• hinval_gvma_vmid^⚠Experimental
  Invalidate hypervisor translation cache for given virtual machine
• hinval_vvma^⚠Experimental
  Invalidate hypervisor translation cache for given guest virtual address and guest address space
• hinval_vvma_all^⚠Experimental
  Invalidate hypervisor translation cache for all guest address spaces and guest virtual addresses
• hinval_vvma_asid^⚠Experimental
  Invalidate hypervisor translation cache for given guest address space
• hinval_vvma_vaddr^⚠Experimental
  Invalidate hypervisor translation cache for given guest virtual address
• hlv_b^⚠Experimental
  Loads virtual machine memory by signed byte integer
• hlv_bu^⚠Experimental
  Loads virtual machine memory by unsigned byte integer
• hlv_d^⚠Experimental
  Loads virtual machine memory by double integer
• hlv_h^⚠Experimental
  Loads virtual machine memory by signed half integer
• hlv_hu^⚠Experimental
  Loads virtual machine memory by unsigned half integer
• hlv_w^⚠Experimental
  Loads virtual machine memory by signed word integer
• hlv_wu^⚠Experimental
  Loads virtual machine memory by unsigned word integer
• hlvx_hu^⚠Experimental
  Accesses virtual machine instruction by unsigned half integer
• hlvx_wu^⚠Experimental
  Accesses virtual machine instruction by unsigned word integer
• hsv_b^⚠Experimental
  Stores virtual machine memory by byte integer
• hsv_d^⚠Experimental
  Stores virtual machine memory by double integer
• hsv_h^⚠Experimental
  Stores virtual machine memory by half integer
• hsv_w^⚠Experimental
  Stores virtual machine memory by word integer
• kabs8Experimental
  Compute the absolute value of packed 8-bit signed integers
• kabs16Experimental
  Compute the absolute value of packed 16-bit signed integers
• kadd8Experimental
  Adds packed 8-bit signed numbers, saturating at the numeric bounds
• kadd16Experimental
  Adds packed 16-bit signed numbers, saturating at the numeric bounds
• kaddhExperimental
  Adds signed lower 16-bit content of two registers with Q15 saturation
• kcras16Experimental
  Cross adds and subtracts packed 16-bit signed numbers, saturating at the numeric bounds
• kcrsa16Experimental
  Cross subtracts and adds packed 16-bit signed numbers, saturating at the numeric bounds
• ksll8Experimental
  Logical left shift packed 8-bit elements, saturating at the numeric bounds
• ksll16Experimental
  Logical left shift packed 16-bit elements, saturating at the numeric bounds
• kslra8Experimental
  Logical saturating left then arithmetic right shift packed 8-bit elements
• kslra8uExperimental
  Logical saturating left then arithmetic right shift packed 8-bit elements
• kslra16Experimental
  Logical saturating left then arithmetic right shift packed 16-bit elements
• kslra16uExperimental
  Logical saturating left then arithmetic right shift packed 16-bit elements
• kstas16Experimental
  Straight adds and subtracts packed 16-bit signed numbers, saturating at the numeric bounds
• kstsa16Experimental
  Straight subtracts and adds packed 16-bit signed numbers, saturating at the numeric bounds
• ksub8Experimental
  Subtracts packed 8-bit signed numbers, saturating at the numeric bounds
• ksub16Experimental
  Subtracts packed 16-bit signed numbers, saturating at the numeric bounds
• ksubhExperimental
  Subtracts signed lower 16-bit content of two registers with Q15 saturation
• nopExperimental
  Generates the NOP instruction
• orc_b^⚠Experimentalzbb
  Bitwise OR-Combine, byte granule
• pauseExperimental
  Generates the PAUSE instruction
• pbsadExperimental
  Calculate the sum of absolute difference of unsigned 8-bit data elements
• pbsadaExperimental
  Calculate and accumulate the sum of absolute difference of unsigned 8-bit data elements
• pkbt16Experimental
  Pack two 16-bit data from bottom and top half from 32-bit chunks
• pktb16Experimental
  Pack two 16-bit data from top and bottom half from 32-bit chunks
• radd8Experimental
  Halves the sum of packed 8-bit signed numbers, dropping least bits
• radd16Experimental
  Halves the sum of packed 16-bit signed numbers, dropping least bits
• rcras16Experimental
  Cross halves of adds and subtracts packed 16-bit signed numbers, dropping least bits
• rcrsa16Experimental
  Cross halves of subtracts and adds packed 16-bit signed numbers, dropping least bits
• rstas16Experimental
  Straight halves of adds and subtracts packed 16-bit signed numbers, dropping least bits
• rstsa16Experimental
  Straight halves of subtracts and adds packed 16-bit signed numbers, dropping least bits
• rsub8Experimental
  Halves the subtraction result of packed 8-bit signed numbers, dropping least bits
• rsub16Experimental
  Halves the subtraction result of packed 16-bit signed numbers, dropping least bits
• scmple8Experimental
  Compare whether 8-bit packed signed integers are less than or equal to the others
• scmple16Experimental
  Compare whether 16-bit packed signed integers are less than or equal to the others
• scmplt8Experimental
  Compare whether 8-bit packed signed integers are less than the others
• scmplt16Experimental
  Compare whether 16-bit packed signed integers are less than the others
• sfence_inval_ir^⚠Experimental
  Generates the SFENCE.INVAL.IR instruction
• sfence_vma^⚠Experimental
  Supervisor memory management fence for given virtual address and address space
• sfence_vma_all^⚠Experimental
  Supervisor memory management fence for all address spaces and virtual addresses
• sfence_vma_asid^⚠Experimental
  Supervisor memory management fence for given address space
• sfence_vma_vaddr^⚠Experimental
  Supervisor memory management fence for given virtual address
• sfence_w_inval^⚠Experimental
  Generates the SFENCE.W.INVAL instruction
• sha256sig0^⚠Experimentalzknh
  Implements the Sigma0 transformation function as used in the SHA2-256 hash function [49] (Section 4.1.2).
• sha256sig1^⚠Experimentalzknh
  Implements the Sigma1 transformation function as used in the SHA2-256 hash function [49] (Section 4.1.2).
• sha256sum0^⚠Experimentalzknh
  Implements the Sum0 transformation function as used in the SHA2-256 hash function [49] (Section 4.1.2).
• sha256sum1^⚠Experimentalzknh
  Implements the Sum1 transformation function as used in the SHA2-256 hash function [49] (Section 4.1.2).
• sha512sig0^⚠Experimentalzknh
  Implements the Sigma0 transformation function as used in the SHA2-512 hash function [49] (Section 4.1.3).
• sha512sig1^⚠Experimentalzknh
  Implements the Sigma1 transformation function as used in the SHA2-512 hash function [49] (Section 4.1.3).
• sha512sum0^⚠Experimentalzknh
  Implements the Sum0 transformation function as used in the SHA2-512 hash function [49] (Section 4.1.3).
• sha512sum1^⚠Experimentalzknh
  Implements the Sum1 transformation function as used in the SHA2-512 hash function [49] (Section 4.1.3).
• sinval_vma^⚠Experimental
  Invalidate supervisor translation cache for given virtual address and address space
• sinval_vma_all^⚠Experimental
  Invalidate supervisor translation cache for all address spaces and virtual addresses
• sinval_vma_asid^⚠Experimental
  Invalidate supervisor translation cache for given address space
• sinval_vma_vaddr^⚠Experimental
  Invalidate supervisor translation cache for given virtual address
• sll8Experimental
  Logical left shift packed 8-bit elements, discarding overflow bits
• sll16Experimental
  Logical left shift packed 16-bit elements, discarding overflow bits
• sm3p0^⚠Experimentalzksh
  Implements the P0 transformation function as used in the SM3 hash function [4, 30].
• sm3p1^⚠Experimentalzksh
  Implements the P1 transformation function as used in the SM3 hash function [4, 30].
• sm4ed^⚠Experimentalzksed
  Accelerates the block encrypt/decrypt operation of the SM4 block cipher [5, 31].
• sm4ks^⚠Experimentalzksed
  Accelerates the Key Schedule operation of the SM4 block cipher [5, 31] with bs=0.
• smaqaExperimental
  Multiply signed 8-bit elements and add 16-bit elements on results for packed 32-bit chunks
• smaqasuExperimental
  Multiply signed to unsigned 8-bit and add 16-bit elements on results for packed 32-bit chunks
• smax8Experimental
  Get maximum values from 8-bit packed signed integers
• smax16Experimental
  Get maximum values from 16-bit packed signed integers
• smin8Experimental
  Get minimum values from 8-bit packed signed integers
• smin16Experimental
  Get minimum values from 16-bit packed signed integers
• sra8Experimental
  Arithmetic right shift packed 8-bit elements without rounding up
• sra8uExperimental
  Arithmetic right shift packed 8-bit elements with rounding up
• sra16Experimental
  Arithmetic right shift packed 16-bit elements without rounding up
• sra16uExperimental
  Arithmetic right shift packed 16-bit elements with rounding up
• srl8Experimental
  Logical right shift packed 8-bit elements without rounding up
• srl8uExperimental
  Logical right shift packed 8-bit elements with rounding up
• srl16Experimental
  Logical right shift packed 16-bit elements without rounding up
• srl16uExperimental
  Logical right shift packed 16-bit elements with rounding up
• stas16Experimental
  Straight adds and subtracts packed 16-bit signed numbers, discarding overflow bits
• stsa16Experimental
  Straight subtracts and adds packed 16-bit signed numbers, discarding overflow bits
• sub8Experimental
  Subtracts packed 8-bit signed numbers, discarding overflow bits
• sub16Experimental
  Subtracts packed 16-bit signed numbers, discarding overflow bits
• sunpkd810Experimental
  Unpack first and zeroth into two 16-bit signed halfwords in each 32-bit chunk
• sunpkd820Experimental
  Unpack second and zeroth into two 16-bit signed halfwords in each 32-bit chunk
• sunpkd830Experimental
  Unpack third and zeroth into two 16-bit signed halfwords in each 32-bit chunk
• sunpkd831Experimental
  Unpack third and first into two 16-bit signed halfwords in each 32-bit chunk
• sunpkd832Experimental
  Unpack third and second into two 16-bit signed halfwords in each 32-bit chunk
• swap8Experimental
  Swap the 8-bit bytes within each 16-bit halfword of a register.
• swap16Experimental
  Swap the 16-bit halfwords within each 32-bit word of a register
• ucmple8Experimental
  Compare whether 8-bit packed unsigned integers are less than or equal to the others
• ucmple16Experimental
  Compare whether 16-bit packed unsigned integers are less than or equal to the others
• ucmplt8Experimental
  Compare whether 8-bit packed unsigned integers are less than the others
• ucmplt16Experimental
  Compare whether 16-bit packed unsigned integers are less than the others
• ukadd8Experimental
  Adds packed 8-bit unsigned numbers, saturating at the numeric bounds
• ukadd16Experimental
  Adds packed 16-bit unsigned numbers, saturating at the numeric bounds
• ukaddhExperimental
  Adds signed lower 16-bit content of two registers with U16 saturation
• ukcras16Experimental
  Cross adds and subtracts packed 16-bit unsigned numbers, saturating at the numeric bounds
• ukcrsa16Experimental
  Cross subtracts and adds packed 16-bit unsigned numbers, saturating at the numeric bounds
• ukstas16Experimental
  Straight adds and subtracts packed 16-bit unsigned numbers, saturating at the numeric bounds
• ukstsa16Experimental
  Straight subtracts and adds packed 16-bit unsigned numbers, saturating at the numeric bounds
• uksub8Experimental
  Subtracts packed 8-bit unsigned numbers, saturating at the numeric bounds
• uksub16Experimental
  Subtracts packed 16-bit unsigned numbers, saturating at the numeric bounds
• uksubhExperimental
  Subtracts signed lower 16-bit content of two registers with U16 saturation
• umaqaExperimental
  Multiply unsigned 8-bit elements and add 16-bit elements on results for packed 32-bit chunks
• umax8Experimental
  Get maximum values from 8-bit packed unsigned integers
• umax16Experimental
  Get maximum values from 16-bit packed unsigned integers
• umin8Experimental
  Get minimum values from 8-bit packed unsigned integers
• umin16Experimental
  Get minimum values from 16-bit packed unsigned integers
• uradd8Experimental
  Halves the sum of packed 8-bit unsigned numbers, dropping least bits
• uradd16Experimental
  Halves the sum of packed 16-bit unsigned numbers, dropping least bits
• urcras16Experimental
  Cross halves of adds and subtracts packed 16-bit unsigned numbers, dropping least bits
• urcrsa16Experimental
  Cross halves of subtracts and adds packed 16-bit unsigned numbers, dropping least bits
• urstas16Experimental
  Straight halves of adds and subtracts packed 16-bit unsigned numbers, dropping least bits
• urstsa16Experimental
  Straight halves of subtracts and adds packed 16-bit unsigned numbers, dropping least bits
• ursub8Experimental
  Halves the subtraction result of packed 8-bit unsigned numbers, dropping least bits
• ursub16Experimental
  Halves the subtraction result of packed 16-bit unsigned numbers, dropping least bits
• wfi^⚠Experimental
  Generates the WFI instruction
• xperm4^⚠Experimentalzbkx
  Nibble-wise lookup of indicies into a vector.
• xperm8^⚠Experimentalzbkx
  Byte-wise lookup of indicies into a vector in registers.
• zunpkd810Experimental
  Unpack first and zeroth into two 16-bit unsigned halfwords in each 32-bit chunk
• zunpkd820Experimental
  Unpack second and zeroth into two 16-bit unsigned halfwords in each 32-bit chunk
• zunpkd830Experimental
  Unpack third and zeroth into two 16-bit unsigned halfwords in each 32-bit chunk
• zunpkd831Experimental
  Unpack third and first into two 16-bit unsigned halfwords in each 32-bit chunk
• zunpkd832Experimental
  Unpack third and second into two 16-bit unsigned halfwords in each 32-bit chunk