C.JAL

Compressed Jump and Link

C.JAL offset

Performs a PC-relative jump and stores return address in x1 (ra). RV32 only.

Encoding

Binary Layout

?

31:16

001

15:13

c_imm12

12:2

01

1:0

 

Format CJ

Opcode 0x00002001

Extension C

Operands

• offset
  Jump Target

Example

C.JAL func

// Compressed function call.

Related

More in C

Reference

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

Description

Performs a PC-relative jump and saves the return address in x1 (RV32 only).

Operation

R[1] = PC + 2; PC += sext(offset);