c.mv

Move Register

C.MV (move register) performs copy of the data in register xs2 to register xd C.MV expands to add xd, x0, xs2.

This instruction must have data-independent timing when extension Zkt is enabled.

Assembly format

c.mv xd, xs2

Decode Variables

Bits<5> xd = $encoding[11:7];
Bits<5> xs2 = $encoding[6:2];

Execution

if (implemented?(ExtensionName::C) && (CSR[misa].C == 1'b0)) {
  raise(ExceptionCode::IllegalInstruction, mode(), $encoding);
}
X[xd] = X[xs2];

Exceptions

This instruction may result in the following synchronous exceptions:

  • IllegalInstruction

Encoding

svg

Defining extension

Zca

Access

M

Always

Containing profiles

  • Mandatory: None

  • Optional: RVA20S64, RVA20U64, RVA22S64, RVA22U64, RVA23S64, RVA23U64, RVB23S64, RVB23U64, RVI20U32, RVI20U64