C.SEXT.B

Compressed Sign Extend Byte

C.SEXT.B rd'

Sign extends the lowest byte of rd' to XLEN.

Details

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

Pseudocode Operation

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

Example

C.SEXT.B rd'

Encoding

Binary Layout

100111

15:10

rd'

9:7

11

6:5

001

4:2

01

1:0

Format CR

Opcode 01

Extension Zcb

Operands

rd'
Dest/Src