C.SEXT.B

Compressed Sign Extend Byte

C.SEXT.B rd'

Sign extends the lowest byte of rd' to XLEN.

Encoding

Binary Layout

?

31:16

100111

15:10

rd_rs1_p

9:7

1100101

6:0

 

Format CR

Opcode 0x00009C65

Extension Zcb

Operands

• rd'
  Dest/Src

Related

More in Zcb

Reference

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

Description

Sign-extends the least-significant byte of rd′ in place (Zcb).

Operation

R[rd'] = sext(R[rd'][7:0]);