SHA512SUM1

SHA-512 Sum1

SHA512SUM1 rd, rs1

Performs SHA-512 Sum1 transformation (RV64).

Encoding

Binary Layout

000100000101

31:20

rs1

19:15

001

14:12

rd

11:7

0010011

6:0

 

Format R-Type

Opcode 0x10501013

Extension Zknh

Operands

• rd
  Destination register (integer)
• rs1
  Source register 1 (integer)

Example

SHA512SUM1 t0, a0

Related

More in Zknh

Reference

View in RISC-V Unprivileged ISA Specification ↗ RISC-V ISA Manual

Description

SHA512SUM1 computes the sum-1 (capital Sigma-1) function for SHA-512.

Operation

rd = sum1_512(rs1);