C.LW

Compressed Load Word

C.LW rd', offset(rs1')

Loads a 32-bit word from memory using a compressed encoding.

Encoding

Binary Layout

?

31:16

010

15:13

c_uimm7hi

12:10

rs1_p

9:7

c_uimm7lo

6:5

rd_p

4:2

00

1:0

 

Format CL

Opcode 0x00004000

Extension C

Operands

• rd'
  Dest (x8-x15)
• rs1'
  Base (x8-x15)
• offset
  Offset

Example

C.LW x8, 4(x9)

// 16-bit encoding of LW.

Related

More in C

Reference

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

Description

Loads a 32-bit word from memory at a 6-bit unsigned offset from rs1′ into rd′.

Operation

R[rd'] = M[R[rs1'] + offset][31:0];