C.ANDI

Compressed AND Immediate

C.ANDI rd', imm

Computes bitwise AND with a signed immediate.

Encoding

Binary Layout

?

31:16

100

15:13

c_imm6hi

12

10

11:10

rd_rs1_p

9:7

c_imm6lo

6:2

01

1:0

 

Format CB

Opcode 0x00008801

Extension C

Operands

• rd'
  Dest/Source
• imm
  Signed Imm

Example

C.ANDI x8, 15

// Keep lowest 4 bits.

Related

More in C

Reference

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

Description

Computes the bitwise AND of rd′ and a 6-bit sign-extended immediate.

Operation

R[rd'] = R[rd'] & sext(imm);