RVOPcode
Home/Instructions/C-MV
C.MV

RISC-V C.MV Instruction Details

Instruction ManualC-type

Copy rs2 into rd. CR format. rs2!=x0.

Instruction Syntax

c.mv rd, rs2
Operand Breakdown
Compressed instructions are 16 bits; registers are often limited to x8–x15.
Immediate fields are narrower. Refer to the full encoding for this compressed instruction.
CCompressed Instruction
Related Search Terms
C.MV instructionRISC-V C.MVc.mv syntaxc.mv encodingc.mv C-typec.mv compressed instruction

Instruction Behavior

C.MV (CR format, all 32 registers) copies rs2 to rd. Expands to add rd,x0,rs2. rs2≠x0; rs2=x0 is C.JR. HINT when rd=x0 and rs2≠x0.

Common Usage Scenarios

Register Operations

Understand this scenario with real code like «c.mv x10, x11 # x10 = x11».

Pre-Use Checklist

Syntax Check
  • Confirm the current instruction format is C-type.
  • Confirm the operand order matches the example.
Semantic Check
  • Ensure the destination register usage is compatible with the calling convention.
  • Confirm this is not the lower-level form of a pseudo-instruction expansion.

Pitfalls / Common Confusions

rs2!=x0 (x0 = C.JR)