SHA512SIG1

SHA-512 Sigma1

SHA512SIG1 rd, rs1

Performs SHA-512 Sigma1 transformation (RV64).

Encoding

Binary Layout

000100000111

31:20

rs1

19:15

001

14:12

rd

11:7

0010011

6:0

 

Format R-Type

Opcode 0x10701013

Extension Zknh

Operands

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

Example

SHA512SIG1 t0, a0

Related

More in Zknh

Reference

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

Description

SHA512SIG1 computes the sigma_1 function for SHA-512.

Operation

rd = sigma1_512(rs1);