gnuArg(&inst, 2, inst.Args[2], PC))
			buf.WriteString(asm)
			startArg = 4
		}

	case "sync":
		lsc := inst.Args[0].(Imm)<<4 | inst.Args[1].(Imm)
		switch lsc {
		case 0x00:
			buf.WriteString("hwsync")
			startArg = 2
		case 0x10:
			buf.WriteString("lwsync")
			startArg = 2
		default:
			buf.WriteString(opName)
		}

	case "lbarx", "lharx", "lwarx", "ldarx":
		// If EH == 0, omit printing EH.