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

?

31:16

100111

15:10

rd_rs1_p

9:7

1100101

6:0

Format CR

Opcode 0x00009C65

Extension Zcb

Operands

rd'
Dest/Src