c.li

Load the sign-extended 6-bit immediate

This instruction is defined by:

Encoding

Synopsis

C.LI loads the sign-extended 6-bit immediate, imm, into register xd. C.LI expands into addi xd, x0, imm. C.LI is only valid when xd ≠ x0; the code points with xd=x0 encode HINTs.

Access

M	HS	U	VS	VU
Always	Always	Always	Always	Always

Always

Decode Variables

signed Bits<6> imm = sext({$encoding[12], $encoding[6:2]}, 6);
Bits<5> xd = $encoding[11:7];

Execution

Pruned, XLEN == 64
Original

X[xd] = $signed(imm);

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