rs2≠x0 31 C.ADD rd=x0, rs2≠x0, rs2≠x2-x5 27 C.ADD rd=x0, rs2≠x0, rs2≠x2-x5 27 C.ADD rd=x0, rs2≠x0, rs2≠x2-x5 27 C.ADD rd=x0, rs2≠x2-x5 4 (rs2=x2) C.NTL.P1 (rs2=x3) C.NTL.PALL (rs2=x4) C.NTL.S1 (rs2=x5) C.NTL.ALL C.SLLI rd=x0, imm≠0