C.ZEXT.B

Compressed Zero Extend Byte

C.ZEXT.B rd'

Zero extends the lowest byte of rd' to XLEN.

Details

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

Pseudocode Operation

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

Example

C.ZEXT.B rd'

Encoding

Binary Layout

100111

15:10

rd'

9:7

11

6:5

000

4:2

01

1:0

Format CR

Opcode 01

Extension Zcb

Operands

rd'
Dest/Src